Unlock the potential of your property in Weymouth. We specialize in turning unused attics into beautiful bedrooms, bathrooms, and home offices.
Get Your Free Weymouth QuoteSee what your Weymouth neighbours say about our loft conversion work.
"We hired them for a shell conversion in Weymouth and were so impressed we asked them to complete the fit-out too. Five stars."
"We went from 'cramped' to 'camped out in luxury'. Our new loft bedroom is the best room in our Weymouth house."
"Exceptional value for money. We got quotes from three Weymouth firms and Building Group offered the best spec for the price."
"Cannot recommend them enough for loft conversions in Weymouth. They handled all the planning permission and the build was smooth."
"The best decision we made for our Weymouth house. The extra office space is perfect. Great attention to detail from the whole team."
"Fast, efficient, and friendly. Turned our dark Weymouth attic into a bright, airy yoga studio. Thank you Building Group!"
See more genuine Weymouth customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Weymouth 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 Weymouth, we create bespoke solutions tailored to your lifestyle.
Our experienced Weymouth team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Weymouth conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Weymouth property to maximize space and value
The most cost-effective option for Weymouth properties using roof windows for natural light. Perfect for Weymouth homes with adequate headroom.
Add valuable floor space and headroom to your Weymouth property with single or multiple dormers. Popular choice in Weymouth for space optimization.
Transform sloping hip roofs into vertical gable walls in your Weymouth home, significantly increasing usable floor space. Ideal for Weymouth semi-detached properties.
The premium option for Weymouth properties creating maximum space with near-vertical walls. Perfect for period properties in Weymouth.
Your Weymouth property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Weymouth specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Weymouth property and budget. Most Weymouth conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Weymouth 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 Weymouth housing stock.
Living in a terraced or semi-detached house in Weymouth? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Weymouth loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Weymouth properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Weymouth engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Weymouth homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Weymouth loft.
Plastering, decorating, flooring, and interior design services to create beautiful Weymouth living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Weymouth city centre, including period properties, modern homes, and conservation areas requiring specialist Weymouth planning expertise.
Expert loft conversion services across all Weymouth suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Weymouth.
Specialist conversions for Weymouth's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Weymouth conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Weymouth Loft Conversions Completed
Average Weymouth Customer Rating
Years Serving Weymouth
Weymouth Building Control Approved
With over 15 years of experience in Weymouth, we understand local planning requirements, building regulations, and architectural styles. Our Weymouth team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Weymouth terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Weymouth semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Weymouth conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"We hired them for a shell conversion in Weymouth and were so impressed we asked them to complete the fit-out too. Five stars."
- Olivia White, Weymouth
"We went from 'cramped' to 'camped out in luxury'. Our new loft bedroom is the best room in our Weymouth house."
- Richard Harris, Weymouth
"Exceptional value for money. We got quotes from three Weymouth firms and Building Group offered the best spec for the price."
- David Wilson, Weymouth
Loft conversion costs in Weymouth vary based on type, size, and specifications. Typical Weymouth 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 Weymouth quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Weymouth survey and detailed quote.
A transparent guide to typical conversion costs in the Weymouth 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 Weymouth properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Weymouth 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 StudiesMake your Weymouth neighbors jealous. It's not a competition, but if it was, you'd win with our lofts.
Book Free Weymouth Loft Survey