Expert guidance through Sherborne planning regulations. We ensure your hip-to-gable or rear dormer conversion is fully compliant and safe.
Get Your Free Sherborne QuoteSee what your Sherborne neighbours say about our loft conversion work.
"They finished ahead of schedule! In the building trade! Unheard of! Best crew in Sherborne by a mile."
"We are delighted with our Velux conversion in Sherborne. The builders were respectful and the finish is high quality. Highly recommended."
"I actually miss having the builders around! Friendly, funny, and polite team. They became part of the family during our Sherborne project."
"Great experience from the quote to the final sign-off. The project manager kept us updated every week on our Sherborne build."
"Honest, reliable and skilled. Our mansard loft in Sherborne looks incredible. They finished exactly on budget."
"Fast, efficient, and friendly. Turned our dark Sherborne attic into a bright, airy yoga studio. Thank you Building Group!"
See more genuine Sherborne customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Sherborne 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 Sherborne, we create bespoke solutions tailored to your lifestyle.
Our experienced Sherborne team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Sherborne conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Sherborne property to maximize space and value
The most cost-effective option for Sherborne properties using roof windows for natural light. Perfect for Sherborne homes with adequate headroom.
Add valuable floor space and headroom to your Sherborne property with single or multiple dormers. Popular choice in Sherborne for space optimization.
Transform sloping hip roofs into vertical gable walls in your Sherborne home, significantly increasing usable floor space. Ideal for Sherborne semi-detached properties.
The premium option for Sherborne properties creating maximum space with near-vertical walls. Perfect for period properties in Sherborne.
Your Sherborne property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Sherborne specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Sherborne property and budget. Most Sherborne conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Sherborne 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 Sherborne housing stock.
Living in a terraced or semi-detached house in Sherborne? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Sherborne loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Sherborne properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Sherborne engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Sherborne homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Sherborne loft.
Plastering, decorating, flooring, and interior design services to create beautiful Sherborne living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Sherborne city centre, including period properties, modern homes, and conservation areas requiring specialist Sherborne planning expertise.
Expert loft conversion services across all Sherborne suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Sherborne.
Specialist conversions for Sherborne's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Sherborne conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Sherborne Loft Conversions Completed
Average Sherborne Customer Rating
Years Serving Sherborne
Sherborne Building Control Approved
With over 15 years of experience in Sherborne, we understand local planning requirements, building regulations, and architectural styles. Our Sherborne team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Sherborne terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Sherborne semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Sherborne conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"They finished ahead of schedule! In the building trade! Unheard of! Best crew in Sherborne by a mile."
- Sarah Jenkins, Sherborne
"We are delighted with our Velux conversion in Sherborne. The builders were respectful and the finish is high quality. Highly recommended."
- Richard Harris, Sherborne
"I actually miss having the builders around! Friendly, funny, and polite team. They became part of the family during our Sherborne project."
- David Wilson, Sherborne
Loft conversion costs in Sherborne vary based on type, size, and specifications. Typical Sherborne 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 Sherborne quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Sherborne survey and detailed quote.
A transparent guide to typical conversion costs in the Sherborne 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 Sherborne properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Sherborne 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 StudiesReady to add value to your home? Call Building Group now for a complimentary site visit in Sherborne.
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