Fully insured and CITB certified. We are the trusted choice for homeowners in Dunstable looking for high-end, reliable loft conversion services.
Get Your Free Dunstable QuoteSee what your Dunstable neighbours say about our loft conversion work.
"Fast, efficient, and friendly. Turned our dark Dunstable attic into a bright, airy yoga studio. Thank you Building Group!"
"I actually miss having the builders around! Friendly, funny, and polite team. They became part of the family during our Dunstable project."
"If you want a loft in Dunstable, just book these guys. Seriously. Don't waste time with anyone else. Building Group is the real deal."
"Top quality dormer conversion. Added significant value to our Dunstable property. Friendly team and very clean working environment."
"Building Group provided excellent advice on the best layout for our Dunstable terrace. The result is better than we imagined."
"Exceptional value for money. We got quotes from three Dunstable firms and Building Group offered the best spec for the price."
See more genuine Dunstable customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Dunstable 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 Dunstable, we create bespoke solutions tailored to your lifestyle.
Our experienced Dunstable team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Dunstable conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Dunstable property to maximize space and value
The most cost-effective option for Dunstable properties using roof windows for natural light. Perfect for Dunstable homes with adequate headroom.
Add valuable floor space and headroom to your Dunstable property with single or multiple dormers. Popular choice in Dunstable for space optimization.
Transform sloping hip roofs into vertical gable walls in your Dunstable home, significantly increasing usable floor space. Ideal for Dunstable semi-detached properties.
The premium option for Dunstable properties creating maximum space with near-vertical walls. Perfect for period properties in Dunstable.
Your Dunstable property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Dunstable specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Dunstable property and budget. Most Dunstable conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Dunstable 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 Dunstable housing stock.
Living in a terraced or semi-detached house in Dunstable? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Dunstable loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Dunstable properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Dunstable engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Dunstable homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Dunstable loft.
Plastering, decorating, flooring, and interior design services to create beautiful Dunstable living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Dunstable city centre, including period properties, modern homes, and conservation areas requiring specialist Dunstable planning expertise.
Expert loft conversion services across all Dunstable suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Dunstable.
Specialist conversions for Dunstable's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Dunstable conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Dunstable Loft Conversions Completed
Average Dunstable Customer Rating
Years Serving Dunstable
Dunstable Building Control Approved
With over 15 years of experience in Dunstable, we understand local planning requirements, building regulations, and architectural styles. Our Dunstable team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Dunstable terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Dunstable semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Dunstable conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Fast, efficient, and friendly. Turned our dark Dunstable attic into a bright, airy yoga studio. Thank you Building Group!"
- James Walker, Dunstable
"I actually miss having the builders around! Friendly, funny, and polite team. They became part of the family during our Dunstable project."
- Paul Roberts, Dunstable
"If you want a loft in Dunstable, just book these guys. Seriously. Don't waste time with anyone else. Building Group is the real deal."
- Richard Harris, Dunstable
Loft conversion costs in Dunstable vary based on type, size, and specifications. Typical Dunstable 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 Dunstable quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Dunstable survey and detailed quote.
A transparent guide to typical conversion costs in the Dunstable 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 Dunstable properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Dunstable 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.
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View All Case StudiesFrom planning permission to the final coat of paint, we handle it all. Start your Dunstable project now.
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