When considering a property purchase in the UK, understanding the history, construction, and potential risks associated with the property type is crucial. One such property type that demands attention is the Lowestoft Borough house. This article delves into the intricate details of these properties, providing a thorough understanding for home buyers and investors alike.

Historical Context and Manufacturing

The Lowestoft Borough house, designed by S W Mobbs, was constructed in the 1920s. These houses were manufactured by the Lowestoft Borough Council, a local authority responsible for various public housing projects during that period. The 1920s was a time of significant housing development in the UK, driven by the need to provide affordable housing for the working class. The Lowestoft Borough houses were part of this broader initiative, aiming to address the housing shortage post-World War I.

Typical Locations

These properties are predominantly found in Lowestoft, a coastal town in Suffolk, England. Lowestoft is known for its maritime heritage and has a mix of residential properties, including the Lowestoft Borough houses. These houses are typically located in residential areas, often forming part of larger housing estates developed by the council.

Construction Characteristics

Understanding the construction characteristics of the Lowestoft Borough house is essential for potential buyers and investors. These properties have unique construction features that distinguish them from other housing types.

Substructure

The substructure of the Lowestoft Borough house consists of concrete strip footings. These footings provide a stable foundation for the property, ensuring it can support the weight of the structure above. The footings are designed in a double L-section, forming a channel that is filled with concrete. This design provides additional stability and strength to the foundation.

External Walls

The external walls of the Lowestoft Borough house are constructed using L-section dense aggregate precast (PC) blocks and L-section clinker aggregate PC blocks. These blocks form a channel that is filled with concrete, providing a robust and durable external wall structure. The use of dense aggregate and clinker aggregate blocks ensures the walls are resistant to weathering and other environmental factors.

Ground Floor

The ground floor of the Lowestoft Borough house is made of concrete. This provides a solid and durable base for the property, capable of withstanding significant loads and wear over time. Concrete floors are also relatively low maintenance, making them a practical choice for residential properties.

Roof

Unfortunately, specific details about the roof construction of the Lowestoft Borough house are not known. However, it is likely that the roof would have been constructed using materials and techniques typical of the 1920s, such as timber framing and slate or tile coverings.

Typical Hazards and Risks

While the Lowestoft Borough house has many positive attributes, it is essential to be aware of the potential hazards and risks associated with this property type.

Reinforced Concrete Durability

One of the primary concerns with the Lowestoft Borough house is the durability of the reinforced concrete used in its construction. Over time, reinforced concrete can be susceptible to corrosion, particularly if it is exposed to moisture and other environmental factors. This can lead to structural issues and potentially compromise the safety of the property.

Carbonation

Carbonation is another potential risk associated with reinforced concrete. This process occurs when carbon dioxide from the air reacts with the calcium hydroxide in the concrete, forming calcium carbonate. This can reduce the alkalinity of the concrete, making it more susceptible to corrosion. It is essential to assess the carbonation depth in the concrete to determine the extent of this risk.

Defective Premises Act

The Lowestoft Borough house is not classed as defective under the Defective Premises Act. However, it is still essential to conduct a thorough inspection and assessment of the property to identify any potential issues and ensure it meets current building standards.

Inspection and Assessment Guide

For surveyors and potential buyers, conducting a thorough inspection and assessment of the Lowestoft Borough house is crucial. Here are some key considerations and steps to follow:

External Walls

Inspect the external walls for any signs of cracking, spalling, or other damage. Pay particular attention to the joints between the precast blocks and the areas where the concrete has been poured. Look for any signs of moisture ingress, which could indicate potential issues with the concrete’s durability.

Ground Floor

Examine the ground floor for any signs of cracking or unevenness. Check for any areas where the concrete may have deteriorated or been damaged. Ensure the floor is level and stable, with no signs of subsidence or other structural issues.

Roof

Although specific details about the roof construction are not known, it is still essential to inspect the roof for any signs of damage or wear. Look for missing or damaged tiles, signs of water ingress, and any issues with the roof’s structural integrity. Ensure the roof is properly ventilated and insulated to prevent issues such as condensation and heat loss.

Reinforced Concrete

Assess the condition of the reinforced concrete used in the property’s construction. Look for any signs of corrosion, such as rust stains or cracking. Measure the carbonation depth in the concrete to determine the extent of any potential issues. Refer to relevant guidance documents, such as BRE Digest 444 and BR 19, for detailed information on assessing reinforced concrete durability.

Typical Defects and Maintenance

Understanding the typical defects associated with the Lowestoft Borough house can help you identify potential issues and plan for necessary maintenance and repairs.

Cracking and Spalling

Cracking and spalling are common issues with reinforced concrete structures. These defects can occur due to various factors, including moisture ingress, freeze-thaw cycles, and corrosion of the reinforcing steel. Regular inspections and timely repairs can help mitigate these issues and extend the lifespan of the property.

Moisture Ingress

Moisture ingress can lead to various problems, including corrosion of the reinforcing steel, deterioration of the concrete, and mould growth. Ensure the property is adequately waterproofed and address any issues with the external walls, roof, and windows to prevent moisture ingress.

Carbonation

As mentioned earlier, carbonation can reduce the alkalinity of the concrete and make it more susceptible to corrosion. Regularly assess the carbonation depth in the concrete and take appropriate measures to address any issues, such as applying protective coatings or carrying out repairs.

Conclusion

The Lowestoft Borough house, with its unique construction characteristics and historical significance, offers a fascinating insight into the housing developments of the 1920s. While these properties have many positive attributes, it is essential to be aware of the potential hazards and risks associated with their construction. By conducting a thorough inspection and assessment, you can identify any potential issues and ensure the property meets current building standards.

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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References

• Moir Report
• Bemis A F, The evolving house. Vol. III Rational design
• Corrosion of steel in concrete (BRE Digest 444, Pts 1–3)
• Repair and maintenance of reinforced concrete (BR 254)
• Carbonation depths in structural-quality concrete (BR 19)