Oxford’s Trusted Extension Builders & Loft Conversion Specialists
For over 15 years, Oxford Loft Conversion has been transforming homes across Oxfordshire with stunning extensions, loft conversions, and renovations. As experienced extension builders, we combine architectural excellence with superior craftsmanship to create beautiful, functional spaces that enhance your lifestyle and add value to your property.

Premium Extension Building Services in Oxford
Whether you’re looking to expand your living space with a rear extension, transform your loft into a master bedroom, or completely renovate your property, our team of skilled extension builders delivers exceptional results tailored to your specific requirements.

Loft Conversions Oxford
Transform your unused attic space into a stunning new bedroom, office, or bathroom. Our loft conversion specialists maximize space and natural light while ensuring structural integrity.
- Dormer conversions
- Hip-to-gable conversions
- Velux/roof light conversions
- Mansard conversions

Home Extensions Oxford
Create additional living space with our bespoke home extensions. From single-storey rear extensions to wrap-around designs, we handle every aspect from planning to completion.
- Single-storey extensions
- Double-storey extensions
- Wrap around extensions
- Side return extensions

Kitchen Extensions
Create your dream kitchen with our specialist kitchen extension service. We’ll help you design an open, light-filled space perfect for cooking, dining and entertaining.
- Open-plan designs
- Kitchen-diner extensions
- Bifold door installations
- Roof lanterns & skylights
Ready to Transform Your Oxford Home?
Limited 2024 Availability – Book Your Site Survey Today!
Get Your Free QuoteWhy Choose Oxford Loft Conversion as Your Extension Builders?
When selecting extension builders in Oxford, you need a team that combines technical expertise with creative vision. Here’s why homeowners across Oxfordshire trust us with their extension projects:

- Local Oxford Expertise – Deep understanding of Oxford’s architectural styles and planning requirements
- Full Project Management – Single point of contact throughout your entire extension project
- Architectural Design – In-house designers create extensions that complement your home’s character
- Quality Craftsmanship – Skilled tradespeople with decades of combined experience
- Transparent Pricing – Detailed quotes with no hidden costs or surprises
- Fully Certified & Insured – Complete peace of mind with comprehensive insurance coverage
Our Extension Building Process
At Oxford Loft Conversion, we’ve refined our extension building process to ensure a smooth, stress-free experience for homeowners. Here’s how we’ll transform your Oxford home:

1. Initial Consultation
We’ll visit your Oxford home to discuss your vision, assess the space, and understand your requirements. Our experts will provide initial advice on feasibility and design options.

2. Design & Planning
Our architectural team creates detailed plans for your extension, handling all planning permission applications with Oxford City Council and building regulations approval.

3. Construction
Our skilled extension builders bring your plans to life with meticulous attention to detail, regular progress updates, and minimal disruption to your daily life.

4. Interior Finishing
From plastering and decorating to electrical and plumbing installations, we complete all interior elements to the highest standards of craftsmanship.

5. Quality Inspection
Our project manager conducts a thorough inspection to ensure every aspect of your extension meets our exacting standards before handover.

6. Handover & Warranty
Enjoy your new space with complete peace of mind, backed by our comprehensive 10-year structural warranty and dedicated aftercare service.
Recent Extension Projects in Oxford
Browse our portfolio of recently completed extension projects across Oxford and surrounding areas. Each project showcases our commitment to quality craftsmanship and innovative design.

Rear Extension, East Oxford

Side Return Extension, North Oxford

Loft Conversion, Headington

Wrap Around Extension, Summertown
Inspired by our work? Let’s discuss your project.
View More ProjectsWhat Our Oxford Clients Say
Don’t just take our word for it. Here’s what homeowners across Oxford have to say about their experience with our extension building services:
“Oxford Loft Conversion transformed our attic into a stunning master suite. Their attention to detail and professionalism throughout the project was exceptional. We couldn’t be happier with our new space!”
Sarah, Headington
“As extension builders, the team at Oxford Loft Conversion exceeded our expectations. Our kitchen extension was completed on time and on budget, with minimal disruption to our family life.”
James, Jericho
“From planning permission to the final touches, Oxford Loft Conversion managed our double-storey extension with absolute professionalism. Their knowledge of local building regulations was invaluable.”
Emma, Cowley
Extension Builders Serving Oxford & Surrounding Areas
As local extension builders, we provide our premium construction services throughout Oxford and surrounding areas, including:
- Headington
- Summertown
- Jericho
- Cowley
- Botley
- Kidlington
- Abingdon
- Witney
- Bicester
- Woodstock
- Wheatley
- Eynsham
Frequently Asked Questions About Extension Building
Get answers to common questions about our extension building services in Oxford.
Do I need planning permission for an extension in Oxford?
Many extensions in Oxford can be built under Permitted Development rights, which don’t require formal planning permission. However, if your property is in a conservation area, is listed, or your extension exceeds certain size limits, planning permission will be required. As experienced extension builders in Oxford, we handle all planning applications on your behalf, ensuring compliance with Oxford City Council requirements.
How much does a house extension cost in Oxford?
Extension costs in Oxford typically range from £1,500 to £2,500 per square meter, depending on specification, materials, and complexity. Factors affecting cost include groundwork requirements, structural changes, and interior finishing standards. We provide detailed, transparent quotes with no hidden costs, and can work with you to design an extension that meets your budget.
How long does it take to build an extension?
Typical timelines for extensions in Oxford are:
- Single-storey extension: 10-12 weeks
- Double-storey extension: 12-16 weeks
- Loft conversion: 6-8 weeks
These timeframes include construction only. The design and planning phase typically takes an additional 8-12 weeks, depending on planning requirements.
Can I stay in my home during the extension build?
Yes, most clients remain in their homes during construction. Our extension builders take measures to minimize disruption, including creating dust barriers, maintaining essential services, and coordinating noisy work at convenient times. For kitchen extensions, we can set up a temporary kitchen to ensure you can continue with daily life.
Contact Oxford’s Premier Extension Builders
Ready to discuss your extension project? Contact Oxford Loft Conversion today for a free, no-obligation consultation and quote.

Oxford Loft Conversion
Oxford’s Trusted Extension Builders
Address: Oxford, Oxfordshire
Email: info@oxfordloftconversion.co.uk
Hours: Mon-Fri: 8am-6pm, Sat: 9am-1pm
Our Accreditations & Guarantees
When you choose Oxford Loft Conversion as your extension builders, you’re working with a fully accredited company that prioritizes quality and compliance.

Federation of Master Builders
As FMB members, we adhere to the highest standards of craftsmanship and business practice.

10-Year Structural Warranty
All our extensions come with a comprehensive 10-year structural warranty for complete peace of mind.

Fully Insured
We maintain comprehensive public liability and professional indemnity insurance for your protection.
Transform Your Oxford Home With Our Expert Extension Builders
Take the first step toward your dream home extension today. Contact Oxford Loft Conversion for a free, no-obligation consultation and quote.
Get Your Free QuoteLimited 2024 Availability – Book Your Site Survey Today!