Invest in your home with confidence. A Building Group loft conversion in Corby is a proven way to significantly increase property value.
Get Your Free Corby QuoteSee what your Corby neighbours say about our loft conversion work.
"I used to hit my head on the rafters. Now I can do jumping jacks in my new Corby bedroom. Incredible transformation."
"The best decision we made for our Corby house. The extra office space is perfect. Great attention to detail from the whole team."
"Exceptional value for money. We got quotes from three Corby firms and Building Group offered the best spec for the price."
"The neighbors are jealous, the kids are happy, and the house value went up. The trifecta! Best investment in Corby."
"Building Group were the only company to spot a potential issue with our chimney in Corby and solved it before starting. True experts."
"Honest, reliable and skilled. Our mansard loft in Corby looks incredible. They finished exactly on budget."
See more genuine Corby customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Corby 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 Corby, we create bespoke solutions tailored to your lifestyle.
Our experienced Corby team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Corby conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Corby property to maximize space and value
The most cost-effective option for Corby properties using roof windows for natural light. Perfect for Corby homes with adequate headroom.
Add valuable floor space and headroom to your Corby property with single or multiple dormers. Popular choice in Corby for space optimization.
Transform sloping hip roofs into vertical gable walls in your Corby home, significantly increasing usable floor space. Ideal for Corby semi-detached properties.
The premium option for Corby properties creating maximum space with near-vertical walls. Perfect for period properties in Corby.
Your Corby property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Corby specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Corby property and budget. Most Corby conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Corby 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 Corby housing stock.
Living in a terraced or semi-detached house in Corby? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Corby loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Corby properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Corby engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Corby homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Corby loft.
Plastering, decorating, flooring, and interior design services to create beautiful Corby living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Corby city centre, including period properties, modern homes, and conservation areas requiring specialist Corby planning expertise.
Expert loft conversion services across all Corby suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Corby.
Specialist conversions for Corby's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Corby conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Corby Loft Conversions Completed
Average Corby Customer Rating
Years Serving Corby
Corby Building Control Approved
With over 15 years of experience in Corby, we understand local planning requirements, building regulations, and architectural styles. Our Corby team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Corby terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Corby semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Corby conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"I used to hit my head on the rafters. Now I can do jumping jacks in my new Corby bedroom. Incredible transformation."
- William Turner, Corby
"The best decision we made for our Corby house. The extra office space is perfect. Great attention to detail from the whole team."
- Rachel Davies, Corby
"Exceptional value for money. We got quotes from three Corby firms and Building Group offered the best spec for the price."
- George Adams, Corby
Loft conversion costs in Corby vary based on type, size, and specifications. Typical Corby 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 Corby quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Corby survey and detailed quote.
A transparent guide to typical conversion costs in the Corby 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 Corby properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Corby 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 StudiesDon't let your loft be a 'maybe' space. Make it a 'definitely' space! Call the Corby experts.
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