From initial design to building control sign-off, we handle everything. Trust Building Group for stress-free loft conversions in Gosport.
Get Your Free Gosport QuoteSee what your Gosport neighbours say about our loft conversion work.
"Building Group were the only company to spot a potential issue with our chimney in Gosport and solved it before starting. True experts."
"I used to hit my head on the rafters. Now I can do jumping jacks in my new Gosport bedroom. Incredible transformation."
"They finished ahead of schedule! In the building trade! Unheard of! Best crew in Gosport by a mile."
"Great experience from the quote to the final sign-off. The project manager kept us updated every week on our Gosport build."
"The 10-year guarantee gave us peace of mind. A trustworthy company serving the Gosport area."
"The best decision we made for our Gosport house. The extra office space is perfect. Great attention to detail from the whole team."
See more genuine Gosport customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Gosport 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 Gosport, we create bespoke solutions tailored to your lifestyle.
Our experienced Gosport team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Gosport conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Gosport property to maximize space and value
The most cost-effective option for Gosport properties using roof windows for natural light. Perfect for Gosport homes with adequate headroom.
Add valuable floor space and headroom to your Gosport property with single or multiple dormers. Popular choice in Gosport for space optimization.
Transform sloping hip roofs into vertical gable walls in your Gosport home, significantly increasing usable floor space. Ideal for Gosport semi-detached properties.
The premium option for Gosport properties creating maximum space with near-vertical walls. Perfect for period properties in Gosport.
Your Gosport property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Gosport specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Gosport property and budget. Most Gosport conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Gosport 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 Gosport housing stock.
Living in a terraced or semi-detached house in Gosport? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Gosport loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Gosport properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Gosport engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Gosport homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Gosport loft.
Plastering, decorating, flooring, and interior design services to create beautiful Gosport living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Gosport city centre, including period properties, modern homes, and conservation areas requiring specialist Gosport planning expertise.
Expert loft conversion services across all Gosport suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Gosport.
Specialist conversions for Gosport's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Gosport conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Gosport Loft Conversions Completed
Average Gosport Customer Rating
Years Serving Gosport
Gosport Building Control Approved
With over 15 years of experience in Gosport, we understand local planning requirements, building regulations, and architectural styles. Our Gosport team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Gosport terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Gosport semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Gosport conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Building Group were the only company to spot a potential issue with our chimney in Gosport and solved it before starting. True experts."
- Rebecca Hill, Gosport
"I used to hit my head on the rafters. Now I can do jumping jacks in my new Gosport bedroom. Incredible transformation."
- Daniel Evans, Gosport
"They finished ahead of schedule! In the building trade! Unheard of! Best crew in Gosport by a mile."
- Christopher Hall, Gosport
Loft conversion costs in Gosport vary based on type, size, and specifications. Typical Gosport 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 Gosport quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Gosport survey and detailed quote.
A transparent guide to typical conversion costs in the Gosport 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 Gosport properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Gosport 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 StudiesStop fighting over the bathroom! Add an ensuite to your Gosport loft and restore family peace.
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