Building Group is Aylesbury's premier loft conversion company. We combine architectural expertise with master craftsmanship to deliver superior results.
Get Your Free Aylesbury QuoteSee what your Aylesbury neighbours say about our loft conversion work.
"Fast, efficient, and friendly. Turned our dark Aylesbury attic into a bright, airy yoga studio. Thank you Building Group!"
"We were worried about the disruption, but the team at Building Group were incredibly considerate of our home in Aylesbury."
"The structural work was done quickly and safely. As a Aylesbury local, I appreciated their knowledge of local planning rules."
"Top quality dormer conversion. Added significant value to our Aylesbury property. Friendly team and very clean working environment."
"Great experience from the quote to the final sign-off. The project manager kept us updated every week on our Aylesbury build."
"Our hip-to-gable conversion has completely changed our family life. We finally have the space we need in Aylesbury without moving."
See more genuine Aylesbury customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Aylesbury property's unused loft space into beautiful, functional living areas with our professional loft conversion services. Whether you need an extra bedroom, home office, or playroom in Aylesbury, we create bespoke solutions tailored to your lifestyle.
Our experienced Aylesbury team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Aylesbury conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Aylesbury property to maximize space and value
The most cost-effective option for Aylesbury properties using roof windows for natural light. Perfect for Aylesbury homes with adequate headroom.
Add valuable floor space and headroom to your Aylesbury property with single or multiple dormers. Popular choice in Aylesbury for space optimization.
Transform sloping hip roofs into vertical gable walls in your Aylesbury home, significantly increasing usable floor space. Ideal for Aylesbury semi-detached properties.
The premium option for Aylesbury properties creating maximum space with near-vertical walls. Perfect for period properties in Aylesbury.
Your Aylesbury property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Aylesbury specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Aylesbury property and budget. Most Aylesbury conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Aylesbury have a 40-50 cubic meter allowance for roof extensions without full planning permission. We handle all Lawful Development Certificate applications for you.
Every conversion we build is inspected by approved inspectors to ensure compliance with Part B (Fire Safety) and Part L (Insulation) of the building regulations specific to Aylesbury housing stock.
Living in a terraced or semi-detached house in Aylesbury? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Aylesbury loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Aylesbury properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Aylesbury engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Aylesbury homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Aylesbury loft.
Plastering, decorating, flooring, and interior design services to create beautiful Aylesbury living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Aylesbury city centre, including period properties, modern homes, and conservation areas requiring specialist Aylesbury planning expertise.
Expert loft conversion services across all Aylesbury suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Aylesbury.
Specialist conversions for Aylesbury's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Aylesbury conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Aylesbury Loft Conversions Completed
Average Aylesbury Customer Rating
Years Serving Aylesbury
Aylesbury Building Control Approved
With over 15 years of experience in Aylesbury, we understand local planning requirements, building regulations, and architectural styles. Our Aylesbury team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Aylesbury terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Aylesbury semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Aylesbury conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Fast, efficient, and friendly. Turned our dark Aylesbury attic into a bright, airy yoga studio. Thank you Building Group!"
- Jessica Green, Aylesbury
"We were worried about the disruption, but the team at Building Group were incredibly considerate of our home in Aylesbury."
- Karen Clarke, Aylesbury
"The structural work was done quickly and safely. As a Aylesbury local, I appreciated their knowledge of local planning rules."
- Rebecca Hill, Aylesbury
Loft conversion costs in Aylesbury vary based on type, size, and specifications. Typical Aylesbury prices: Velux conversions £20,000-£30,000, Dormer conversions £35,000-£45,000, Hip-to-gable £40,000-£55,000, Mansard conversions £45,000-£65,000. All Aylesbury quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Aylesbury survey and detailed quote.
A transparent guide to typical conversion costs in the Aylesbury area (2025 Estimates)
| Conversion Type | Suitability | Timeframe | Price Range |
|---|---|---|---|
| Velux (Roof Light) | Existing headroom > 2.3m | 4-6 Weeks | £20k - £30k |
| Dormer (Rear) | Semis & Terraces | 6-8 Weeks | £35k - £50k |
| Hip-to-Gable | End-terrace & Semi-detached | 8-10 Weeks | £45k - £60k |
| Mansard | Period Properties / London Styles | 10-12 Weeks | £50k - £75k+ |
*Prices are indicative for Aylesbury properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Aylesbury area. My job is to ensure your project meets local building regulations while maximizing every inch of space. I'm happy to visit your property for a preliminary structural assessment."
Four recent loft conversions across the UK — from a London mansard within a conservation area to an L-shaped Manchester dormer, a Birmingham hip-to-gable, and a Leeds rear dormer. Tap any project for the full case study.
Loft
Mansard loft conversion on a London Victorian terrace within a conservation area — full mansard build raising the rear roof line, slate-clad cheeks to match the neighbours, two double bedrooms with private en-suites, and a sky-lit landing. Approval secured under full planning, not Permitted Development.
Loft
L-shaped rear dormer loft conversion on a Victorian terrace — turning unused roof space into two double bedrooms and a shared en-suite, with two Velux windows to the front, a glass balustrade to the new staircase, and matching slate-grey finish to blend with the original roof.
Loft
Rear dormer loft conversion turning unused roof space into a master bedroom and en-suite, with two Velux roof windows to the front and a slim glass balustrade to the new staircase.
Loft
Hip-to-gable conversion with rear dormer on a 1930s semi-detached — squaring off the original hipped roofline to gain full standing headroom, creating a master bedroom with built-in wardrobes and a generous en-suite, plus a third Velux to the front for natural light.
Want to see the rest of our portfolio?
View All Case StudiesBook a free survey with our expert Aylesbury team and find out what is possible with your attic space.
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