Stop dreaming about a bigger house and start building one! Our Tenby loft conversions give you a 'new home' feeling without the moving van.
Get Your Free Tenby QuoteSee what your Tenby neighbours say about our loft conversion work.
"Top quality dormer conversion. Added significant value to our Tenby property. Friendly team and very clean working environment."
"Exceptional value for money. We got quotes from three Tenby firms and Building Group offered the best spec for the price."
"Fantastic loft conversion in our Tenby home. The team was professional, tidy, and finished on time. Our new master bedroom with ensuite is stunning."
"High-end finish on our mansard extension. The carpentry and plastering work in our Tenby home is flawless."
"Great experience from the quote to the final sign-off. The project manager kept us updated every week on our Tenby build."
"We were worried about the disruption, but the team at Building Group were incredibly considerate of our home in Tenby."
See more genuine Tenby customer reviews and loft conversion project galleries.
Read More ReviewsTransform your Tenby 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 Tenby, we create bespoke solutions tailored to your lifestyle.
Our experienced Tenby team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Tenby conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Tenby property to maximize space and value
The most cost-effective option for Tenby properties using roof windows for natural light. Perfect for Tenby homes with adequate headroom.
Add valuable floor space and headroom to your Tenby property with single or multiple dormers. Popular choice in Tenby for space optimization.
Transform sloping hip roofs into vertical gable walls in your Tenby home, significantly increasing usable floor space. Ideal for Tenby semi-detached properties.
The premium option for Tenby properties creating maximum space with near-vertical walls. Perfect for period properties in Tenby.
Your Tenby property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Tenby specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Tenby property and budget. Most Tenby conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Tenby 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 Tenby housing stock.
Living in a terraced or semi-detached house in Tenby? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Tenby loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Tenby properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Tenby engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Tenby homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Tenby loft.
Plastering, decorating, flooring, and interior design services to create beautiful Tenby living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Tenby city centre, including period properties, modern homes, and conservation areas requiring specialist Tenby planning expertise.
Expert loft conversion services across all Tenby suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Tenby.
Specialist conversions for Tenby's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Tenby conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Tenby Loft Conversions Completed
Average Tenby Customer Rating
Years Serving Tenby
Tenby Building Control Approved
With over 15 years of experience in Tenby, we understand local planning requirements, building regulations, and architectural styles. Our Tenby team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Tenby terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Tenby semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Tenby conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Top quality dormer conversion. Added significant value to our Tenby property. Friendly team and very clean working environment."
- Jessica Green, Tenby
"Exceptional value for money. We got quotes from three Tenby firms and Building Group offered the best spec for the price."
- Jennifer Wright, Tenby
"Fantastic loft conversion in our Tenby home. The team was professional, tidy, and finished on time. Our new master bedroom with ensuite is stunning."
- Richard Harris, Tenby
Loft conversion costs in Tenby vary based on type, size, and specifications. Typical Tenby 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 Tenby quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Tenby survey and detailed quote.
A transparent guide to typical conversion costs in the Tenby 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 Tenby properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Tenby 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 StudiesMaximize your property's potential. Let our Tenby experts show you what we can do with your roof space.
Book Free Tenby Loft Survey