Transform your home with a Building Group loft conversion. We offer fixed-price quotes and a dedicated project manager for every job in Thorney.
Get Your Free Thorney QuoteTransform your Thorney property without moving. Add space and value with our expert loft conversion service.
Add up to 20% to your Thorney property value with a professional loft conversion.
No need to leave Thorney. Get the space you need in your current home.
Most Thorney loft conversions completed in 4-6 weeks with minimal disruption.
Create bedrooms, offices, or playrooms perfect for Thorney family living.
Transform your Thorney 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 Thorney, we create bespoke solutions tailored to your lifestyle.
Our experienced Thorney team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Thorney conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Thorney property to maximize space and value
The most cost-effective option for Thorney properties using roof windows for natural light. Perfect for Thorney homes with adequate headroom.
Add valuable floor space and headroom to your Thorney property with single or multiple dormers. Popular choice in Thorney for space optimization.
Transform sloping hip roofs into vertical gable walls in your Thorney home, significantly increasing usable floor space. Ideal for Thorney semi-detached properties.
The premium option for Thorney properties creating maximum space with near-vertical walls. Perfect for period properties in Thorney.
Your Thorney property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Thorney specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Thorney property and budget. Most Thorney conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Thorney 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 Thorney housing stock.
Living in a terraced or semi-detached house in Thorney? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Thorney loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Thorney properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Thorney engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Thorney homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Thorney loft.
Plastering, decorating, flooring, and interior design services to create beautiful Thorney living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Thorney city centre, including period properties, modern homes, and conservation areas requiring specialist Thorney planning expertise.
Expert loft conversion services across all Thorney suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Thorney.
Specialist conversions for Thorney's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Thorney conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Thorney Loft Conversions Completed
Average Thorney Customer Rating
Years Serving Thorney
Thorney Building Control Approved
With over 15 years of experience in Thorney, we understand local planning requirements, building regulations, and architectural styles. Our Thorney team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Thorney terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Thorney semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Thorney conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"The best decision we made for our Thorney house. The extra office space is perfect. Great attention to detail from the whole team."
- Rachel Davies, Thorney
"The structural work was done quickly and safely. As a Thorney local, I appreciated their knowledge of local planning rules."
- Daniel Evans, Thorney
"Building Group were the only company to spot a potential issue with our chimney in Thorney and solved it before starting. True experts."
- Christopher Hall, Thorney
Loft conversion costs in Thorney vary based on type, size, and specifications. Typical Thorney 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 Thorney quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Thorney survey and detailed quote.
A transparent guide to typical conversion costs in the Thorney 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 Thorney properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Thorney 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."
Make your Thorney neighbors jealous. It's not a competition, but if it was, you'd win with our lofts.
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