Understanding the Newcastle Corporation House

The Newcastle Corporation House, also known as the Norwegian Timber House, is a unique and historically significant property type in the UK. Built in 1927, these homes are a testament to the architectural and construction practices of the early 20th century. With only 100 of these houses ever constructed, they are a rare find for home buyers and investors alike. This article will delve into the intricacies of these properties, from their construction and design to potential hazards and inspection tips.

Historical Context and Construction

The Newcastle Corporation House was designed and manufactured in 1927, a period marked by innovation in housing solutions. These homes were part of a broader movement to address housing shortages and provide affordable living spaces. The design and construction of these houses were influenced by Norwegian timber construction techniques, hence the alternative name, Norwegian Timber.

Manufacturers and Designers

The exact manufacturers of the Newcastle Corporation House remain somewhat obscure, but the design was heavily influenced by Scandinavian building practices. The use of timber as a primary material was a nod to the Norwegian influence, which was known for its durability and efficiency in construction.

Typical Characteristics

These properties are typically two-storey semi-detached or terraced houses. They feature a steep pitch hipped roof covered with slates or a medium pitch hipped roof covered with tiles. The external walls are characterized by vertical timber boarding throughout, with a horizontal timber band course at the first-floor level. Some houses also have a projecting front gable with horizontal timber boarding at the apex.

Construction Details

• Substructure: The houses are built on concrete strip footings with vented concrete and brick underbuilding. A damp-proof course (DPC) is also present to prevent moisture ingress.

• External Walls: The platform frame construction consists of storey-height timber frame panels sheathed externally with horizontal tongue and groove (T&G) timber boarding. This is overlaid with building paper and sheathed internally with vertical T&G timber boarding. The first-floor elevations are overlaid with two layers of bituminous paper and directly clad with rebated joint vertical timber boarding. The walls are lined with fibreboard for additional insulation.

• Separating Walls: These are constructed with 9-inch brick, providing a solid barrier between adjoining properties.

• Partitions: Internal partitions are made of timber stud overlaid with vertical timber boarding and lined with fibreboard.

• Floors: The ground and first floors are constructed with T&G boarding on timber joists, providing a sturdy and resilient flooring solution.

• Ceilings: Timber frame panels lined with fibreboard make up the ceilings, offering both structural support and insulation.

• Roof: The roof is constructed with timber rafters and unlined slates, with mineral fibre insulation at ceiling level to enhance thermal efficiency.

Variants

Some variants of the Newcastle Corporation House feature timber frame panels sheathed externally with vertical T&G timber boarding. Additionally, the projecting front gable may be directly clad with horizontal timber boarding at the apex, and the roof may be covered with tiles instead of slates.

Potential Hazards and Risks

While the Newcastle Corporation House is a charming and historically significant property, it is not without its potential hazards and risks. One of the primary concerns is the localised decay of timber board cladding, which can compromise the structural integrity of the house. Missing or displaced roof slates are also common issues that can lead to water ingress and subsequent damage.

Defective Premises Act

The Newcastle Corporation House is not classed as defective under the Defective Premises Act. However, due to its age and construction materials, it is essential for potential buyers and investors to conduct thorough inspections to identify any existing or potential issues.

Inspection Tips for Surveyors

When inspecting a Newcastle Corporation House, surveyors should pay close attention to the following areas:

• Timber Cladding: Check for signs of decay, rot, or insect infestation in the timber cladding. This is a common issue due to the age of the properties and the natural susceptibility of timber to environmental factors.

• Roof Condition: Inspect the roof for missing or displaced slates or tiles. Ensure that the roof structure is sound and that there are no signs of water ingress.

• Dampness: Look for signs of dampness, particularly around the DPC and in areas where the timber cladding meets the brickwork. Dampness can lead to significant structural issues if not addressed promptly.

• Insulation: Assess the condition of the mineral fibre insulation at ceiling level. Adequate insulation is crucial for maintaining energy efficiency and preventing heat loss.

• Structural Integrity: Examine the overall structural integrity of the timber frame and brickwork. Look for any signs of movement or settlement that could indicate underlying issues.

Common Defects

The Newcastle Corporation House is prone to several common defects, including:

• Timber Decay: As mentioned earlier, timber decay is a prevalent issue due to the age and construction materials of these houses. Regular maintenance and treatment can help mitigate this risk.

• Roofing Issues: Missing or displaced slates or tiles can lead to water ingress and subsequent damage. Regular roof inspections and maintenance are essential to prevent these issues.

• Dampness: Dampness is a common problem in older properties, particularly those with timber construction. Ensuring that the DPC is intact and addressing any signs of dampness promptly can help prevent further damage.

• Insulation Deterioration: Over time, the mineral fibre insulation may deteriorate, leading to reduced energy efficiency. Upgrading the insulation can help improve the property’s thermal performance.

Conclusion

The Newcastle Corporation House is a unique and historically significant property type that offers both charm and character. However, potential buyers and investors must be aware of the potential hazards and risks associated with these properties. By conducting thorough inspections and addressing any issues promptly, you can ensure that your investment is both safe and sound.

At Flettons, we’re committed to safeguarding your investment. When considering a property purchase, trust our seasoned expertise to reveal any hidden threats. For a thorough building survey, get your instant quote through our quote calculator or reach out directly at 0203 691 0451. Your home’s safety is our top priority.

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