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Single-Storey Wraparound Extensions Guide

Single-storey wraparound extensions are an increasingly popular way to expand living spaces in residential homes. These extensions wrap around the side or rear of the existing structure, providing homeowners with more functional space, improved aesthetics, and increased property value

30 October 2023
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Eugene Kim

Table of Contents

This comprehensive guide will take you through the key aspects of planning, designing, and constructing a single-storey wraparound extension.

Single Storey Extension & Loft Conversion in Hampton, Richmond

1: Planning and Design

1.1. Define Your Objectives:

– Determine your specific needs for the extension, such as an additional bedroom, kitchen, dining area, or home office.

– Consider how the new space will flow with the existing layout of your home.

1.2. Budget and Financing:

– Establish a budget that includes construction costs, design fees, permits, and unforeseen expenses.

– Explore financing options, such as loans or savings earmarked for the project.

1.3. Local Regulations:

– Research local planning regulations, zoning laws, and building permits required for your extension.

– Consult with your local planning department or hire a professional to navigate the approval process.

2: Design and Architectural Considerations
structural change

2.1. Architect Selection:

– Hire an experienced architect or designer with a track record in single-storey extensions.

– Collaborate closely to create a design that aligns with your vision and adheres to local regulations.

2.2. Aesthetic Integration:

– Ensure that the extension complements the existing architecture, materials, and finishes.

– Consider the exterior facade, roof design, and window placements to achieve a harmonious look.

2.3. Natural Light and Ventilation:

– Plan for ample windows, skylights, or sliding glass doors to bring in natural light.

– Incorporate effective ventilation systems to maintain comfort and air quality.

3: Construction

3.1. Building Contractor:

– Select a reputable and licensed building contractor with experience in similar projects.

– Check references and review past work to ensure quality.

3.2. Foundation and Structure:

– Determine the foundation type suitable for your soil conditions and local building codes.

– Ensure the structural integrity of the extension, including walls, roof, and load-bearing elements.

3.3. Materials and Finishes:

– Choose materials that align with your design aesthetic and budget, considering factors like durability and insulation.

– Select finishes, such as flooring and paint, that harmonize with the rest of your home.

3.4. Plumbing and Electrical:

– Plan the placement of plumbing fixtures, electrical outlets, and lighting to suit the new space’s purpose.

– Hire licensed professionals for installation to meet safety standards.

4: Practical Considerations

4.1. Energy Efficiency:

– Insulate the extension to meet or exceed local energy efficiency requirements.

– Install energy-efficient windows and doors to reduce heating and cooling costs.

4.2. Accessibility:

– Design the extension with accessibility in mind, ensuring it is usable by all family members, including those with mobility challenges.

4.3. Safety and Security:

– Incorporate security features such as alarms, locks, and motion-activated lighting.

– Ensure compliance with fire safety regulations.

5: Post-Construction

5.1. Inspection and Approval:

– Arrange for necessary inspections to obtain final approvals from local authorities.

– Ensure that all necessary paperwork is completed for legal compliance.

5.2. Maintenance:

– Regularly maintain and inspect your extension to prevent issues and extend its lifespan.

– Address any maintenance needs promptly to avoid costly repairs.


Single-storey wraparound extensions offer an excellent opportunity to transform your home and create a more functional living space. By carefully planning, designing, and executing your project while adhering to local regulations, you can enjoy the benefits of added space, improved aesthetics, and increased property value. Remember to collaborate with experienced professionals throughout the process to ensure a successful and stress-free extension project.

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Eugene Kim

Eugene Kim, Founder and Managing Director of Extension Architecture, has led the firm for over 14 years, consistently delivering quality solutions. His dedication has been key to the company's growth and success.

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