Historical Context and Background

The Craig Atholl house, a distinctive property type in the UK, holds a unique place in the annals of British housing history. Manufactured by Atholl Steel Houses Ltd and designed by Sam Bunton & Associates, these homes were constructed in 1951. Only four of these two-storey semi-detached houses were built, making them a rare find in today’s property market. This article delves into the intricate details of Craig Atholl houses, providing valuable insights for home buyers and investors.

Identifying Characteristics

Craig Atholl houses are easily identifiable by their medium pitch gable roofs covered with concrete tiles. The external walls are rendered with roughcast, giving them a textured appearance. One of the most distinctive features is the pronounced bellmouth at the eaves level on the gable wall. Additionally, these houses have PS surrounds to door and window openings and a flat canopy over the front door supported by tubular columns.

Alternative Names

While the Craig Atholl house is the most common name, these properties do not have widely recognized alternative names. This lack of alternative nomenclature adds to their uniqueness and historical significance.

Construction Details

Understanding the construction details of Craig Atholl houses is crucial for potential buyers and investors. These homes were built using specific materials and techniques that were innovative for their time.

Substructure

The substructure of Craig Atholl houses consists of concrete strip footings. This type of foundation provides a stable base for the structure, ensuring durability and longevity.

Frame

The main frame of these houses is constructed using RSJ (Rolled Steel Joist) and RSA (Rolled Steel Angle) stanchions. Steel perimeter beams and steel trusses provide additional support. The use of steel in the frame construction was a significant advancement in the 1950s, offering strength and resilience.

Protective Coating

The protective coating used on the steel frame is not known. However, it is essential to inspect the condition of the steel during a survey to ensure there is no corrosion or other damage.

External Walls

The external walls are rendered and keyed with bituminous felt. Bellrock plaster panels are infilled between the stanchions, forming shuttering for concrete cast around the steelwork. This construction method provides excellent insulation and weather resistance.

Separating Wall

The separating wall between the semi-detached houses is a brick cavity wall. This type of wall offers good sound insulation and fire resistance, enhancing the safety and comfort of the occupants.

Partitions

Internal partitions are made of Bellrock plaster panels. These panels are lightweight yet sturdy, providing effective room division without compromising structural integrity.

Ground Floor

The ground floor is constructed of concrete, offering a solid and durable base. Concrete floors are known for their longevity and low maintenance requirements.

First Floor

The first floor is made of timber, providing a warm and comfortable living space. Timber floors are also relatively easy to repair and maintain.

Ceilings

The ceilings are made of plasterboard, a common material that offers a smooth finish and can be easily painted or decorated.

Roof

The roof is constructed with timber sarking and covered with concrete tiles. This combination provides excellent weather resistance and durability.

Typical Hazards and Risks

While Craig Atholl houses are robust and well-constructed, they are not without their potential hazards and risks. Understanding these issues is crucial for buyers and investors.

Corrosion of Steel Frame

One of the primary concerns with steel-framed houses is the potential for corrosion. Over time, exposure to moisture can cause the steel to rust, compromising the structural integrity of the house. Regular inspections and maintenance are essential to prevent and address this issue.

Insulation and Energy Efficiency

The insulation in Craig Atholl houses may not meet modern standards. Upgrading the insulation can improve energy efficiency, reduce heating costs, and enhance comfort.

Asbestos

Asbestos was commonly used in construction during the 1950s. While there is no specific evidence of asbestos in Craig Atholl houses, it is advisable to conduct an asbestos survey to ensure the safety of the occupants.

Damp and Mould

Damp and mould can be issues in older properties, particularly if there are leaks or poor ventilation. Regular inspections and prompt repairs can mitigate these risks.

Defective Premises Act

The Defective Premises Act 1972 imposes a duty on builders, developers, and landlords to ensure that properties are constructed and maintained to a reasonable standard. Craig Atholl houses are not specifically classed as defective under this act. However, it is essential to ensure that any property you purchase meets current building standards and is free from significant defects.

Inspection Guide for Surveyors

Conducting a thorough inspection of a Craig Atholl house requires a detailed understanding of its construction and potential issues. Here are some key areas to focus on during an inspection:

External Inspection

• Roof: Check the condition of the concrete tiles and timber sarking. Look for signs of damage, wear, or leaks.
• Walls: Inspect the rendered walls for cracks, damp, or other damage. Pay particular attention to the bellmouth at the eaves level.
• Doors and Windows: Examine the PS surrounds for any signs of wear or damage. Ensure that the doors and windows are in good working order.
• Canopy: Check the flat canopy over the front door and the supporting tubular columns for stability and condition.

Internal Inspection

• Frame: Inspect the steel frame for any signs of corrosion or damage. This may require removing some internal finishes to access the steelwork.
• Partitions: Check the condition of the Bellrock plaster panels. Look for any signs of damage or deterioration.
• Floors: Examine the concrete ground floor and timber first floor for any signs of damage or wear. Ensure that the floors are level and stable.
• Ceilings: Inspect the plasterboard ceilings for cracks, damp, or other damage.
• Insulation: Check the insulation in the walls, roof, and floors. Consider upgrading the insulation if it does not meet modern standards.

Services

• Electrical: Ensure that the electrical system is up to date and meets current safety standards. Look for any signs of wear or damage to the wiring and fixtures.
• Plumbing: Check the plumbing system for leaks, corrosion, or other issues. Ensure that the water pressure is adequate and that the system is in good working order.
• Heating: Inspect the heating system, including the boiler, radiators, and pipework. Ensure that the system is efficient and in good working order.

Typical Defects in Craig Atholl Houses

Understanding the typical defects in Craig Atholl houses can help you identify potential issues during an inspection and take appropriate action.

Corrosion of Steel Frame

As mentioned earlier, corrosion of the steel frame is a significant concern. Regular inspections and maintenance are essential to prevent and address this issue.

Cracks in Rendered Walls

Cracks in the rendered walls can occur due to movement in the structure or weathering. These cracks should be repaired promptly to prevent water ingress and further damage.

Damp and Mould

Damp and mould can be issues in older properties, particularly if there are leaks or poor ventilation. Regular inspections and prompt repairs can mitigate these risks.

Insulation and Energy Efficiency

The insulation in Craig Atholl houses may not meet modern standards. Upgrading the insulation can improve energy efficiency, reduce heating costs, and enhance comfort.

Asbestos

Asbestos was commonly used in construction during the 1950s. While there is no specific evidence of asbestos in Craig Atholl houses, it is advisable to conduct an asbestos survey to ensure the safety of the occupants.

Maintenance and Improvement Tips

Maintaining and improving a Craig Atholl house requires a proactive approach. Here are some tips to help you keep your property in excellent condition:

Regular Inspections

Conduct regular inspections of the property to identify and address any issues promptly. This includes checking the roof, walls, doors, windows, and steel frame for any signs of damage or wear.

Upgrading Insulation

Improving the insulation in the walls, roof, and floors can enhance energy efficiency and comfort. Consider using modern insulation materials that meet current standards.

Addressing Damp and Mould

Ensure that the property is well-ventilated and that any leaks or damp issues are addressed promptly. Use dehumidifiers and mould-resistant paint to prevent mould growth.

Electrical and Plumbing Upgrades

Ensure that the electrical and plumbing systems are up to date and meet current safety standards. Consider upgrading these systems if they are outdated or showing signs of wear.

Asbestos Removal

If an asbestos survey identifies the presence of asbestos, it is essential to have it removed by a qualified professional. This will ensure the safety of the occupants and comply with current regulations.

Conclusion

Craig Atholl houses are a unique and historically significant property type in the UK. Understanding their construction, potential hazards, and typical defects is crucial for home buyers and investors. By conducting thorough inspections and proactive maintenance, you can ensure that your Craig Atholl house remains a safe and comfortable home for years to come.

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.