Transform your home with a Building Group loft conversion. We offer fixed-price quotes and a dedicated project manager for every job in Chatham.
Get Your Free Chatham QuoteSee what your Chatham neighbours say about our loft conversion work.
"We hired them for a shell conversion in Chatham and were so impressed we asked them to complete the fit-out too. Five stars."
"Honest, reliable and skilled. Our mansard loft in Chatham looks incredible. They finished exactly on budget."
"They managed the party wall agreement with our Chatham neighbors professionally. The whole street was impressed with their cleanliness."
"We are delighted with our Velux conversion in Chatham. The builders were respectful and the finish is high quality. Highly recommended."
"My husband is finally out of the living room and into his new man-cave! Thank you Building Group for saving my sanity in Chatham!"
"Exceptional value for money. We got quotes from three Chatham firms and Building Group offered the best spec for the price."
See more genuine Chatham customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Chatham 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 Chatham, we create bespoke solutions tailored to your lifestyle.
Our experienced Chatham team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Chatham conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Chatham property to maximize space and value
The most cost-effective option for Chatham properties using roof windows for natural light. Perfect for Chatham homes with adequate headroom.
Add valuable floor space and headroom to your Chatham property with single or multiple dormers. Popular choice in Chatham for space optimization.
Transform sloping hip roofs into vertical gable walls in your Chatham home, significantly increasing usable floor space. Ideal for Chatham semi-detached properties.
The premium option for Chatham properties creating maximum space with near-vertical walls. Perfect for period properties in Chatham.
Your Chatham property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Chatham specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Chatham property and budget. Most Chatham conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Chatham 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 Chatham housing stock.
Living in a terraced or semi-detached house in Chatham? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Chatham loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Chatham properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Chatham engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Chatham homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Chatham loft.
Plastering, decorating, flooring, and interior design services to create beautiful Chatham living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Chatham city centre, including period properties, modern homes, and conservation areas requiring specialist Chatham planning expertise.
Expert loft conversion services across all Chatham suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Chatham.
Specialist conversions for Chatham's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Chatham conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Chatham Loft Conversions Completed
Average Chatham Customer Rating
Years Serving Chatham
Chatham Building Control Approved
With over 15 years of experience in Chatham, we understand local planning requirements, building regulations, and architectural styles. Our Chatham team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Chatham terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Chatham semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Chatham conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"We hired them for a shell conversion in Chatham and were so impressed we asked them to complete the fit-out too. Five stars."
- Mark Thompson, Chatham
"Honest, reliable and skilled. Our mansard loft in Chatham looks incredible. They finished exactly on budget."
- Michael Hughes, Chatham
"They managed the party wall agreement with our Chatham neighbors professionally. The whole street was impressed with their cleanliness."
- Maria Garcia, Chatham
Loft conversion costs in Chatham vary based on type, size, and specifications. Typical Chatham 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 Chatham quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Chatham survey and detailed quote.
A transparent guide to typical conversion costs in the Chatham 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 Chatham properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Chatham 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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