#prefab — Public Fediverse posts

Etasphera03 3D Model Package #3Dmodel #Etasphera03 #Textures #Animations #Pbrmaterials #Rigged #Polygoncount #Mesh #Prefab #AssetStore

https://u3dn.com/packages/etasphera03-3d-model-package-246306

Realistic Motorcycle Bike #Motorcycle #Bike #Realistic #Unity #Urp #Hdrp #Pbr #Gameready #Model #Prefab #Materials #AssetStore

https://u3dn.com/packages/realistic-motorcycle-bike-294619

Belgian Pistol with Bayonet 3D Model #3Dmodel #Pistol #Bayonet #Belgian #Unity #Urp #Pbr #Textures #Polygoncount #Mesh #Prefab #AssetStore

https://u3dn.com/packages/belgian-pistol-with-bayonet-3d-model-253502

Flower Moss Rose 3D Model for Unity #3Dmodel #Unity #Flower #Cartoon #Mobile #Texturemaps #Fbx #Prefab #AssetStore

https://u3dn.com/packages/flower-moss-rose-3d-model-for-unity-228769

Toon House Pack #Toon #Building #Prefab #Gameart #Cartoon #Mobile #Unity #AssetStore

https://u3dn.com/packages/toon-house-pack-279439

Pink Magnolia Tree 3D Model #Pinkmagnolia #3Dmodel #Tree #Decoration #Spring #Urbanlandscape #Park #Garden #Game #Metaverse #Texturemaps #Materials #Prefab #Demoscene #AssetStore

https://u3dn.com/packages/pink-magnolia-tree-3d-model-243700

Hoya Archboldiana 3D Flower Model #3Dflower #Hoyaarchboldiana #Unity #3Dmodel #Texturemaps #Prefab #AssetStore

https://u3dn.com/packages/hoya-archboldiana-3d-flower-model-235624

Business Women Pack #Business #Women #3Dcharacter #Humanoidskeleton #Lowpoly #Modular #Customizable #Prefab #Urp #Hdrp #Materials #Textures #Png #Pbr #AssetStore

https://u3dn.com/packages/business-women-pack-271352

Modular Stickman Clothing Pack #Stickman #Clothing #Modular #Lowpoly #Mobile #Games #Character #Prefab #AssetStore

https://u3dn.com/packages/modular-stickman-clothing-pack-271039

#3Dmodel #Bunny #Easter #Spring #Decoration #Charm #Customization #Texturemaps #Materials #Prefab #Demoscene

https://u3dn.com/packages/asset-248994

FOR RENT (1840): one-roomed prefabricated Manning's house, 9 feet (2.74 m) square. At least it has a chimney. #Adelaide. #1840s #prefab #historyAU #prefabs

Rectory of Trinity Church, North Terrace, #Adelaide was also a prefabricated Manning's house. #1830s #1840s #prefab #S_T_Gill #historyAU #prefabs

Zoom in to left of church: https://www.agsa.sa.gov.au/collection-publications/collection/works/trinity-church-adelaide-1845/24380/

Realised these are probably prefabricated Manning's houses, c. 1841-42, corner Grenfell St & Gawler Pl, #Adelaide. #1840s #prefab #S_T_Gill #historyAU #prefabs

Repost this time with more direct link to artwork: https://nla.gov.au/nla.obj-134360971/view

The thread about Sighthill Neuk; what makes this quiet and leafy, post-war, suburban street so very special and totally unique?

It might look like many other quiet, leafy, post-war suburban streets in Edinburgh, or anywhere at all really, but there’s something very special about Sighthill Neuk and its surrounding streets. If you were to wander around, most of the houses would feel familiar to you. You’ve probably seen them – or ones very like them – before. You’ve probably been seeing them all your life. But look again. No two blocks of houses here are the same. Every single one is different. In fact, some of them are totally unique.

That is because this just isn’t any old street, this is the Sighthill Demonstration Site; a testing ground and living laboratory for post-war public housing experiments for Scotland. Between 1944 and 1965, 69 houses were built to 20 different designs and construction methods in a scheme supervised by the Scottish Special Housing Association, the SSHA. This public agency was formed in Edinburgh in 1937 to provide good quality public housing in Scotland to supplement that constructed by Local Authorities.

At Sighthill, they tested out the latest innovations in building materials, construction techniques, internal configurations, plumbing, heating and more, with the intention of building better and cheaper municipal housing. These houses were demonstrated to local authorities, their architects and contractors, who would go on to build many thousands of houses of the sorts trialled at Sighthill. SSHA staff lived in the houses and reported back on how they performed and what they were like to live in. Most of the houses were later sold on to the SSHA staff who lived in them, and who by accounts were very pleased with them; indeed all but one of the demonstration houses survive to this day and all are very well kept.

However, such was the crash-building nature of the post-war public housing construction boom, unfortunately many mistakes were made before the lessons from Sighthill had been learned. For instance, the Scottish prototype of the Orlit System framed house was built here in 1946 and many thousands were built all over Scotland by the time it became apparent in 1950 that it was a flawed system that produced defective houses. This thread explores each type of house in the Demonstration Site and what makes each special.

20. Weir Paragon House

We start with number 20 because this was the first house built at the Sighthill Demonstration Site. It was also the first post-war prefabricated house built in Scotland (in fact it was completed before the end of the war!) and is the only one which has been demolished – although it was intended to be a permanent structure.

The Weir Paragon House was a prefabricated house with a steel frame, walls and roof. It was a single-storey, detached, modernist cottage coated externally with a weatherproof layer of harling and paint. It was of an E-shape plan, with one “wing” of the house containing the bedrooms and the other the living room, kitchen and a utility room. The first and second prototypes were erected within G. & J. Weir’s factory in Glasgow, the third was sent to Sighthill as its opening showpiece. It was ready to be opened to the public by Viscount Weir on July 21st 1944, just 45 days after Allied forces had landed on the Normandy Beaches. 100 of these houses were built during wartime, for use in rural and mining areas of Scotland to ease a housing crisis in those districts.

The heating worked off a solid-fuel boiler that produced hot water for radiators. All the pipe-work was exposed as a utility measure so that it did not need to be buried within walls. The doors were sliding instead of hinged, to reduce the space needed to open a door. A feature of the house, to reduce unnecessary waste, was there were no internal door locks and a novel system of push-button door handles. Viscount Weir reasoned that “there must be 80 million locks and handles on room doors in Scottish houses” and that that locks were never used and the handles had too many moving parts.

The second house, known as Kendeugh, had been built in the grounds of the Weir Sports Fields next to their Holm Foundry factory in Cathcart. It survived in good condition as a private residence until mid-2022 in Glasgow, at which point it was unceremoniously demolished.

1. Department of Health for Scotland Timber Economy Houses

These houses weren’t built from timber, rather they were built to try and economise the use of softwood timber as there was a fear that due to the UK’s economic conditions, building timber would be too expensive to import. There were built for the Department of Health for Scotland by the SSHA. Each of the four houses in the terrace used a different proportion of timber compared to a standard British house of the same size; 0% standard timber use, 25%, 67% and 92%. These houses were modified from a design prepared in England and one of the space-saving features was an “aggregate ground floor living space“; the living room, kitchen and dining room were open plan. These were the first mass-market first houses in Scotland to feature this.

The structural walls were of standard brick and block construction, but internal partitions were pre-cast plaster or concrete panels or blocks. The roofs used either hardwood or steel frames rather than softwood. The floor structures were pre-cast concrete beams, in-filled with concrete on the ground floor. The first floor differed from house to house.

2. Ministry of Works / Ministry of Housing & Local Government Timber Economy Houses

These houses were built for the same reasons as the DHfS Timber Economy Houses, but were sponsored by the Ministry of Works and the Ministry of Housing & Local Government. They were based on designs for the new towns of Cwmbran, Harlow and Peterlee, modified to suit Scottish standards. They were of traditional construction but used a variety of non-traditional roofing, flooring and internal partitions (pre-cast concrete, plasterboard, hardwood and even plastic tile flooring) to reduce softwood requirements. Eight houses in total were built; a semi-detached house, a 4-in-a-block terrace and a detached upper/lower flat were built.

3. Department of Health for Scotland Space Saving Flats

The “Space Saving” houses aimed to reduce the costs of housing construction by reducing aspects of the internal sizing and configuration, but particularly the amount of space devoted to the actual supporting structure of the building. This block of flats was inspired by the visit of a Minister of the Scottish Office to Holland in 1951, which impressed upon them features of Dutch housing that were more economical than traditional Scottish practices. This 3-storey block had 3 stairs, each with 6 flats, for 18 houses. The main novelty was the use of stronger bricks that were thinner bricks and resulted in a lighter structure; the traditional 16 inch thick walls used for flats in Scotland was reduced by 1/3 to 11 inches. This meant each flat required 13,700 bricks, compared to 17-21,000 for similar flats of traditional construction and the press reported the unveiling of these flats under the headline “Thinner Walls for Cheaper Flats!”.

Further economies were gained by reducing the sizes of the bedrooms was reduced and in a third of the houses there was no internal hallway; bedrooms and bathrooms lead off the living room. To reduce softwood use, the roofing structure was as light as was permitted and all joists were no longer than 8″ thick timber would allow. A final innovation was to combine the soil (toilet) and waste (sink) drains together, one of the first times this had been tried in Scotland.

4. Department of Health for Scotland Space Saving Cottages

Like the DHfS Space Saving Flats, these cottages reduced the internal space and the volume of building materials required for traditional construction to demonstrate the principals to Local Authorities. They dispensed with the traditional “pend” that gave access to back gardens through a terrace as this was otherwise unused space and replaced it with an utility room, giving through access internally. Hallways were kept as small as possible to maximise the internal space devoted to living space. Bedrooms were reduced in size and no built-in cupboards or recesses were included in them; this space was reallocated to the kitchen and living room. A controversial change was reducing the 8 foot standard ceiling height by 3 inches on the ground floor and 6 inches upstairs. These houses were 90 square feet (8.3m2) smaller than the equivalent houses of the time, for no loss of living space.

5. Weir Timber Houses

Weirs had been interested in prefabricated housing since Lord Weir’s “Steel Houses” of which 500 were built in Scotland after WW1. Weir Housing Corporation produced the prototype Paragon Steel House at Sighthill in 1944 and in 1951 won an SSHA competition to design a new standard, prefabricated timber house. The prototype was erected here to demonstrate it before 3,000 were supplied from Weir’s factory in Coatbridge for use by the SSHA across Scotland. The first production houses were a scheme of 18 in Kirkintilloch, the first of which was ready in December 1952 after taking only 6 weeks to complete. Due to restrictions on timber imports, 3,000 was the limit of the number of houses that could be built.

6. SSHA Bellrock House & 7. Orlit Bellrock House

Houses 6 and 7 were two semi-detached, two-storey houses built to trial the use of Bellrock load-bearing gypsum wall panels for the internal partitions. One was built to an SSHA design, the other to the Orlit System of prefabricated concrete frames and interlocking cladding blocks. It was unusual for an Orlit house in that the roof was gabled and not hipped (the sides are straight, when viewed from the front, with the external wall meeting the peak of the roof at the top). The SSHA house had an unusual construction method, with the gypsum panels going up first and acting as shuttering, with reinforced concrete being poured between them to form the load-bearing structure. It is a one-of-a-kind prototype and the SSHA built no more of them.

8, 9 & 10. Ministry of Fuel & Power Heating Demonstration Houses

These three semi-detached houses were built in 1949-50 to demonstrate three different new space-heating systems for the Ministry of Fuel and Power. They were supervised and monitored by the Fuel Research Station in East Kilbride. Two used coal-fired boilers; one a hot air system and the other a low-pressure water system with conventional radiators. The third used a gas-fired, warm air system with outlets in all rooms.

The houses themselves were identical inside (to allow comparison between the three systems) and were of traditional construction to the designs of the SSHA as contractor to the Department.

11. Miller-O’Sullivan House

The Miller-O’Sullivan House was a collaboration between James Miller – an Edinburgh-based volume housebuilder who had specialised in small, semi-detached, middle class housing infill sites in the interwar period – and Edward O’ Sullivan, a building contractor to London County Council who specialised in concrete block houses. Both companies had developed their own non-standard construction housing designs. This house used a special machine on-site to pour concrete into moulds to form the components, with a steel spine beam tying it together internally. The outside was roughcast.

12. Atholl Steel House

The Atholl House was named after its builders the Atholl Steel House Company of Mossend in Lanarkshire (named after the Duke of Atholl, one of the company’s founders). The company had built prefabricated steel houses in the inter-war period for public housing schemes; 550 of which were erected in Scotland. An updated steel house design, based on their 1926 model, had already been put into production for England in 1945 and was modified for construction in Scotland. A prototype semi-detached house of the Scottish variant was built at Sighthill in 1946 for the SSHA and DhFS. These houses are a steel frame, covered in harled and painted steel panels with a corrugated steel roof. Steel house production was suspended in 1948 after 1,500 Atholl Houses had been completed due to the post-war economic crisis and a crash in the domestic supply of steel in the country.

13. Holland, Hannen & Cubitts Foamslag Block House

This semi-detached house was built in 1944 by one of England’s principal engineering contractors who were a specialist in concrete construction. The technique was traditional, being built of blockwork, but the materials were not. Foamslag was a lightweight concrete building block that had been developed in 1938 by the Department of Housing Research Section using the by-product of steel manufacturing.

14. Canadian Timber House

The last demonstration houses to be built at Sighthill by the SSHA, these were one of three sites sponsored in the UK by the Central Mortgage and Housing Corporation of Ottawa, Canada. They were the result of a 1963 visit to Canada by British housing officials to investigate Canadian pre-fabricated housing techniques. The timber components were imported from Canada. They could clad with brick, timber or render on metal lath; one of the Sighthill houses has a Fyfestone synthetic stone block finish.

15. Holland, Hannen & Cubitts Poured Foamslag House

This was a version of the other Holland, Hannen & Cubitts house at Sighthill, but instead of being built from blocks it was poured in-situ into prefabricated shuttering. Very few of these houses were ever built.

16. Orlit Frameless House

This was the prototype of the Orlit Frameless House which was developed when it became apparent that the pre-cast, reinforced concrete (PRC) frames of the Orlit System houses were a major structural weakness when they began to suffer corrosion. Orlit set up the Scottish Construction Company to built these houses as the Scotcon Orlit and many thousands were erected by the SSHA and Scottish local authorities in the 1950s. They do not suffer from the same deficiencies as the Orlit System houses. You can read more about the different Orlit houses in the thread about Post-War, Prefabricated, Permanent housing in Edinburgh.

17. Orlit Framed House

This was the prototype in Scotland of the Orlit Framed House, built to the Orlit System of the Czech architect Edwin Katona. This used a system of PRC frames and columns which were infilled with special interlocking concrete blocks. The houses at Sighthill were finished with brick porches and a pitched roof, most Orlit System houses were much more utilitarian in appearance and had a flat roof. Many thousand of these houses were built by the SSHA and local authorities in Scotland prior to 1950, before it became clear that the system suffered from structural weaknesses when the PRC began to corrode prematurely at the joints. Designated as defective, many of these houses have since been demolished but you can still find them around Edinburgh. You can read more about the different Orlit houses in the thread about Post-War, Prefabricated, Permanent housing in Edinburgh.

18. Keyhouse Unibuilt House

This is the only house of this type that was built in Scotland. It is a steel house, with a steel frame and cladding and glasswool and plasterboard internal lining. Like other steel houses, construction was curtailed by the government in 1948 due to a severe shortages of domestic steel and few of these were ever built. They were built for the Ministry of Works by a consortium of J. Brockhouse & Co., engineers; Joseph Sankey & Sons, sheet metal stampers; and Gyproc Products, plasterboard manufacturers.

19. SSHA No-Fines House

This was a prototype of a No-Fines house for the SSHA, built in 1946. No-Fines refers to concrete produced with no sand component (the fine material of the aggregate); just gravel and cement. With no sand to fully fill in the gaps between the gravel, it is a breathable material. It began being used for public housing in the inter-war period and interest arose again post-war as it did not require the specialist skill of bricklaying. Local authorities in Scotland and the SSHA built extensively in No-Fines into the 1970s. It was poured in-situ between wooden shuttering on a brick base. The floors were of wooden joists, and the roof was traditional timber frame covered in tiles.

If you enjoyed this post, you may be pleased to learn that I stumbled upon an inter-war version of it nearby at the Riversdale Housing Demonstration Scheme in Roseburn.

Note to readers: unfortunately in April 2026, a third-party plug-in more than exceeded its authority and broke many of the image links on this site. No images were lost but I will have to restore them page-by-page, which may take some time. In the meantime please bear with me while I go about rectifying this issue.

If you have found this site useful, informative or amusing then you can help contribute towards its running costs by supporting me on ko-fi. This includes my commitment to keeping it 100% advert and AI free for all time coming, and in helping to find further unusual stories to bring you by acquiring books and paying for research.
Or please do just share this post on social media or amongst friends and like-minded people, sites like this thrive on being shared.

Explore Threadinburgh by map:

These threads © 2017-2026, Andy Arthur.

NO AI TRAINING: Any use of the contents of this website to “train” generative artificial intelligence (AI) technologies to generate text is expressly prohibited. The author reserves all rights to license uses of this work for generative AI training and development of machine learning language models.

Blackburns, BISFs, Orlits and Whitson-Fairhursts. The thread about pre-fabricated, permanent, post-war housing in Edinburgh

This thread is a bit of an A-to-Z of the different types of permanent, prefabricated, post-war housing built in Edinburgh between 1945-1950.

In the aftermath of WW2, hundreds of thousands of temporary, prefabricated houses were built across the UK, as part of a national crash-building programme to ease urban slum dwelling, replace war losses and provide housing for men returning from war until the construction of permanent housing could catch up with demand. In Edinburgh, some 4,000 temporary prefabs were built, of four types; AIROHs, ARCONs, Tarrans and Uni-SECOs. But prefab housing wasn’t just temporary, it was also for permanent construction. It was hoped that by mass-manufacturing standard designs of modern houses in factories, they could be rapidly built with limited skilled labour.

A is for Aluminium

Some of the first permanent prefab houses ordered for Edinburgh were of the Permanent Aluminium or Blackburn Mk.II design. These were based on the AIROH (Air Industry Research Organisation for Housing) single-storey, temporary, aluminium cottages – of which some 54,000 were built – but with thicker walls and insulation, designed to last 60 years instead of the AIROH‘s ten. These were developed by the British aircraft industry as a way to find use for its skills and manufacturing facilities in the postwar environment, and to make use of a glut of scrap aluminium from surplus aircraft. This material has its advantages; it is light, strong, does not rust or readily corrode and – initially – readily available from scrapped aircraft. It took 2 tonnes of aluminium to build an AIROH house frame. So a single large fighter aircraft like a Typhoon give you all the aluminium for a house. The Blackburn Aircraft Company of Dumbarton got on board.

They have been described as an “airplane in house form“; manufactured in sections on an aircraft production line, in sections that could be transported by road, and assembled quickly on site by unskilled labour. They came pre-fitted with standard kitchens and bathrooms, all of which just needed connected together on site on a simple brick or concrete plinth. The problem for aluminium houses of all types was that the price of the material soon rebounded and they became very expensive to produce, but they filled a gap and were not the worst of the temporary prefabs by any stretch.

Edinburgh purchased 166 permanent Blackburn Aluminium Houses; 145 for the Craigour Scheme in Moredun and 21 for Muirhouse.

These houses are quite easy to identify, as they are small, detached cottages with 3 regularly-sized windows and an offset front door. The shallow-pitched roof has a small brick chimney stack and was originally aluminium sheeting. There were 3 overlapping joints on the façade where the 4 prefabricated modules were joined together. These houses were quite popular, they sit on large plots and have big gardens. They are detached and the frames have not been subject to corrosion. Many have been insulated, re-clad, re-roofed and even extended. Some have been demolished and new houses built on their plots.

B is for BISF

These houses were named after their manufacturer and designer, the British Iron and Steel Federation. The house is of a conventional, semi-detached design, but uses a steel frame with steel window and door surrounds and Critall-Hope steel framed windows. The lower storey was clad in render applied to a steel lath and the upper storey had steel sheeting formed to look like timber. Interior partitions were plasterboard or wooden fibreboard and insulation was glass fibre. Most have been stripped back to their frames, re-insulated and re-clad with pebble-dash, and given modern plastic double glazing units. The fibreboard walls were prone to damp and fire and most were replaced with plasterboard during refurbishments.

In Edinburgh, c. 300 of these houses were built in Southhouse / Buirdiehouse (1947) and Moredun / Fernieside (1949) Schemes and most (if not all) remain to this day. They are somewhat unusual in that they were always intended to be permanent, and have not suffered from the usual structural degradation and corrosion that have plagued other non-standard houses. As such they are one of the few prefab designs that have never been designated as defective (which means you can get a mortgage on one).

Useful identification features for BISF houses are that they are always semi-detached; they have a single, squat, central chimney on a pitched roof; the re-clad houses often have a mix of brick and pebble-dash cladding; the main ground floor window extends almost to floor level; and they lack the heavy reinforced concrete door and window surrounds of the concrete houses.

B is for Blackburn Orlit

These houses were a collaboration between the Blackburn Aircraft Company in Dumbarton and the Orlit Construction Company (see under O). They were designed in 1949 and used an improved, simplified version of the Orlit reinforced concrete frame and wall panel system, combined with the lightweight aluminium roof structure and pre-fabricated internal partitions covered in plasterboard, by Blackburn. Kitchens and bathrooms were also prefabricated “pods” produced by the Scottish Myton Company, based on experience with the Tarran temporary prefab houses. Four houses were built as a prototype in Clydebank in 1949, followed by 214 in 1950-51 on the Saughton Mains Scheme in Edinburgh, as semi-detached and terraces. Around 1,300 were built in total across Scotland.

These houses have the usual heavy, PRC door and window surrounds of Orlit houses and the irregularly-spaced concrete “quoins” on the corners. The ground floor front room window is deep (deeper than standard Orlits), but has often been in-filled with a shallower window. They have a shallow-pitched, gabled Blackburn roof (the roofs of Scotcon Orlits and those added to earlier Orlits are “hipped”) and lack the usual Orlit narrow, first-floor window over the front door. Instead they have 3 windows squeezed into the façade upstairs.

B is for Blackburn Mk.IV

Another collaboration between Blackburn and Orlit. These houses were of a more traditional construction, with walls constructed out of pre-cast “no fines” concrete blocks on a concrete slab foundation and Crittal steel-framed windows. I assume given Blackburn‘s involvement there were aluminium internal components used. You will find these in Edinburgh at the West Mains Scheme in Blackford,where 134 were built in 1951 as 4-in-a-block terraces. Nearly all have now been re-rendered, hiding their original concrete blockwork structure. Because they lack the Orlit‘s PRC frame and steel joints, they have not been classed as defective.

Identification features are the blockwork walls (where you can see them); the lack of the heavy, PRC door and window surrounds of most Orlit houses; the door surround has as small concession to detail (usually absent from such houses) with a moulding line around it; the central bay windows at ground floor level originally had a copper-sheathed roof.

B is for Blackburn Permanent

Also known as the Blackburn Mk.III, as the name suggests, this was a permanent house making use of Blackburn’s prefabricated internal partitioning and shallow-pitched aluminium roof structure, which was originally covered in aluminium sheeting. The form was basically the same as the Blackburn-Orlit house, but without the heavy PRC window and door frames and walls are traditional blockwork. Edinburgh built these as semi-detached and 4-in-a-block terraces, at Moredun in 1949 and the then Midlothian County Council as semi-detached houses in Currie in 1950.

Identification features are the shallow roof pitch, squat chimneys, and the strip of 4 windows with brick infill on the first floor. Again there is a very deep sitting room window. These houses are usually harled or pebbledashed.

O is for Orlit

The Orlit System was developed by the Czech architect Erwin Katona, a Jewish refugee who had come to London in the late 1930s. He developed a modular, pre-cast reinforced concrete (PRC) system of construction that could be built in a factory and rapidly assembled on site with limited and unskilled labour. PRC columns and beams slotted together to form the structure, in-filled with an interlocking system of concrete tiles. Floors and roofs were of concrete channels. The roof could be a flat concrete slab covered in bitumen paper or a traditional wooden, pitched structure with tiles. Windows were Critall steel-framed, set within PRC concrete frames of standard sizes. The Orlit System could build a range of buildings, from single-storey cottages and municipal buildings to tenement flats. Usually they were semi-detached houses though.

The System was meant to be for permanent houses, with a 60 year lifespan, but was unfortunately riddled with flaws and weaknesses. Over time, PRC deteriorates, particularly at construction joints and junctions between components, with a gradual reduction in structural effectiveness. It suffers from inadequate thermal insulation, as well as thermal bridging – making houses cold and prone to condensation on the walls. As early as 1949, people in Edinburgh were writing to the newspapers to complain about the flaws in brand new Orlit houses. The original Type 1 system was replaced with the Type 2 to try and remedy the deficiencies. By 1950, they had abandoned the pre-cast frame system almost entirely (except for the window surrounds) and moved on to modular concrete block construction, which eliminated the structural weaknesses at least! All Orlit houses built to the original Type 1 or 2 systems have been designated defective.

Orlits were popular with Scottish local authorities and set up a subsidiary – the Scottish Orlit Company – with its headquarters and factory in Sighthill. Around 6,000 were built across Scotland, of which half have been subsequently demolished. Edinburgh built around 668, 410 of which have been demolished. These were a mix of the usual 2-storey semis and tenement flats; all of the latter were built at Bingham and were demolished in 1985. 134 semis were built at Saughton Mains (in 1948) and 80 at Southhouse / Burdiehouse (in 1947), all of which remain. This post does not cover the later 1950s-built Orlits at Ratho Craigpark, Oxgangs Farm and Gilmerton Dykes.

The Orlit System evolved over time, and has a large amount of variety available due to the flexibility of the system, however the best things to look for are the heavy outlines of the pre-cast concrete window surrounds, the narrow windows over the front door and to the side, and the bulky outline of the original concrete flat roof slab to which the later hipped roofs were added to remedy the deficient nature of the structure. I believe all Orlit System houses built in Edinburgh were originally flat roofed.

S is for Scotcon Orlit

Scotcon (from Scottish Construction Company) were a subsidiary of the Scottish Orlit Company, formed expressly to undertake local authority housebuilding in Scotland. While much of their work was prefabricated tower blocks, they also built on the standard Orlit system. 296 Scotcon Orlit houses were built in Edinburgh in 1950-51, a mixture of semi-detached houses and 3-storey tenements. 126 have since been demolished, but 170 remain; in the Niddrie Marischal Scheme (tenements and semis); at Saughton Mains (only 3 semis, perhaps built as demonstration models given their proximity to the Scottish Orlit Co. factory at Sighthill); Dunsmuir Court in Corstorphine (tenements) and at Easter Drylaw (tenements).

Because they use the Orlit system of PRC beams and columns, with pre-cast interlocking concrete block walls and PRC window and door surrounds, they are designated defective. They have traditional timber-framed, pitched roofs.

Scotcon Orlits look like other Orlits, with the heavy PRC window surrounds, but that of the ground floor front room is much deeper. They have the trademark narrow window over the front door, and (where they haven’t been covered up with pebbledash), irregular concrete “quoins”. The “hipped” roofs were built as pitched timber and tile structures, so they lack the heavy slab of the early Orlits built with flat roofs (to which a pitched structure was later added).

The tenements can be recognised by the heavy PRC window surrounds, with the usual wide and deep front-room window, and narrow windows over the front door. All the Scotcon Orlit tenements in Edinburgh are 6-in-a-block. The ground floor houses have their own entrance doors to the side.

S is for Swedish Timber House

The Swedish government sold 5,000 flat-pack timber houses of a standard design to to the British Government after WW2. Half went to Scotland, particularly for rural housing, and the first 350 arrived as early as October 1945. Similar houses had been built in Glasgow in 1937 by the Swedish Government to demonstrate them to Scottish local authorities. 100 were gifted to Edinburgh Corporation by Sweden as a gesture of post-war good will, with 50 each erected in West Pilton and Sighthill under the supervision of Swedish foremen, as a mix of semi-detached and 4-in-a-block terraces. An additional handful were built by the SSHA at their Sighthill Demonstration Site.

Because they are of traditional timber construction with pitched, slate roofs, they have never been designated defective. Most have been externally insulated, and re-clad with harl or render, but some retain their original timber cladding.

The original tongue-and-groove timber cladding of thin strips, with those of the first floor overlapping the ground floor, are the best identification feature. They have a large front room window on the ground floor and a small canopy over the door. Most of those that still retain their timber cladding have been treated with dark brown or red preservatives, but originally they were brightly painted in cream. The roof is tiled and well pitched, with a single, central chimney to the front.

W is for Whitson-Fairhurst

These houses are named after their designers, W. A. Fairhurst and Melville, Dundas & Whitson Ltd. They were of a modular, prefabricated concrete system built by the Scottish Housing Group, a post-war conglomerate of housing builders who had pooled their resources to meet government and local authority contracts for mass construction. They use a system of PRC columns and beams to form the structure of the house, which are in-filled with an outer skin of brick and an inner skin of breeze blocks. Window surrounds and door frames are relatively heavy PRC structures. A traditional timber roof structure was covered in concrete roof tiles and they were harled or pebbledashed. 3,400 Whitson-Fairhurst houses were built in Scotland,. In Edinburgh they were only built in the Southhouse / Burdiehouse Scheme, where 100 semi-detached houses were built. They are designated defective.

At first glance they could be confused for an Orlit house, with heavy PRC window surrounds. The biggest difference is that the roof is of the gable-type (when seen from the front, the sides of the house are flat all the way to the top of the roof), not “hipped” as in Orlits (when seen from the front, the sides of the roof are pitched towards the top) The front window is much deeper and they lack the Orlit‘s signature narrow window above the front door.

Note to readers: unfortunately in April 2026, a third-party plug-in more than exceeded its authority and broke many of the image links on this site. No images were lost but I will have to restore them page-by-page, which may take some time. In the meantime please bear with me while I go about rectifying this issue.

If you have found this site useful, informative or amusing then you can help contribute towards its running costs by supporting me on ko-fi. This includes my commitment to keeping it 100% advert and AI free for all time coming, and in helping to find further unusual stories to bring you by acquiring books and paying for research.
Or please do just share this post on social media or amongst friends and like-minded people, sites like this thrive on being shared.

Explore Threadinburgh by map:

These threads © 2017-2026, Andy Arthur.

NO AI TRAINING: Any use of the contents of this website to “train” generative artificial intelligence (AI) technologies to generate text is expressly prohibited. The author reserves all rights to license uses of this work for generative AI training and development of machine learning language models.