The RTB Temporary Bungalow

The RTB Temporary Bungalow is a rare example of post-war prefabricated housing developed in the 1940s to address acute housing shortages following the Second World War. Manufactured by Richard Thomas & Baldwins, this one-off design reflects the urgency and material constraints of the period.

An RTB Temporary Bungalow showing shallow pitched gable roof construction and metal sheet external wall cladding typical of this rare post-war system.

RTB Temporary Bungalows are detached, single-storey dwellings constructed around a steel structural frame. The design was intended for rapid assembly, using industrial materials readily available in the immediate post-war period.

External walls are clad with flat metal sheets, while the shallow pitched gable roof is finished with profiled metal sheeting. This metal envelope gives the bungalow a distinctive industrial appearance and introduces specific performance considerations.

Insulation standards are limited by modern expectations, and thermal performance is closely linked to ventilation provision and the condition of the external envelope.

The principal risks associated with RTB Temporary Bungalows relate to condensation, thermal bridging, and corrosion of the steel frame. Metal-clad construction can be vulnerable where ventilation is poor or protective coatings have deteriorated.

Corrosion is most commonly observed at joints, fixings, and areas exposed to persistent moisture. Evidence of dampness or mould internally may indicate underlying issues with insulation or airflow rather than direct water penetration.

RTB Temporary Bungalows require a clear understanding of non-traditional construction and an acceptance that ongoing inspection and maintenance are integral to ownership.

• Commission a full building survey
• Review any history of corrosion treatment or repairs
• Accept that original materials may not meet modern performance standards

Heightened caution is appropriate where access to structural elements is restricted or maintenance history is unclear.

Mortgage and resale considerations for this property type are influenced by construction form, current condition, and the quality of professional reporting. Lender acceptance can vary and is subject to change.

Clear evidence of maintenance, corrosion management, and satisfactory survey findings are commonly influential factors.

A building survey provides an informed assessment of the visible condition and construction of an RTB Temporary Bungalow. Inspections are non-intrusive and limited to areas that are accessible at the time of inspection.

• Identify visible corrosion to steel framing and metal cladding
• Assess signs of dampness, condensation, and mould growth
• Comment on roof coverings, fixings, and external envelope condition
• Review the general condition of accessible floors, ceilings, and structural elements
• Highlight defects that may require repair, monitoring, or further investigation

However, there are limitations to what a survey can determine without intrusive investigation.

• Confirm the condition of concealed steelwork behind linings
• Assess hidden structural connections or fixings
• Determine the full extent of internal corrosion
• Inspect areas that are inaccessible or covered at the time of inspection

Where higher-risk indicators are identified, further specialist or intrusive investigation may be recommended.

For a thorough building survey in Greater London, an instant quotation can be obtained through the online survey calculator.