Create the home you've always wanted. Our Llanberis loft experts turn dark, dusty attics into bright, functional, and beautiful rooms.
Get Your Free Llanberis QuoteTransform your Llanberis property without moving. Add space and value with our expert loft conversion service.
Add up to 20% to your Llanberis property value with a professional loft conversion.
No need to leave Llanberis. Get the space you need in your current home.
Most Llanberis loft conversions completed in 4-6 weeks with minimal disruption.
Create bedrooms, offices, or playrooms perfect for Llanberis family living.
Transform your Llanberis 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 Llanberis, we create bespoke solutions tailored to your lifestyle.
Our experienced Llanberis team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Llanberis conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Llanberis property to maximize space and value
The most cost-effective option for Llanberis properties using roof windows for natural light. Perfect for Llanberis homes with adequate headroom.
Add valuable floor space and headroom to your Llanberis property with single or multiple dormers. Popular choice in Llanberis for space optimization.
Transform sloping hip roofs into vertical gable walls in your Llanberis home, significantly increasing usable floor space. Ideal for Llanberis semi-detached properties.
The premium option for Llanberis properties creating maximum space with near-vertical walls. Perfect for period properties in Llanberis.
Your Llanberis property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Llanberis specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Llanberis property and budget. Most Llanberis conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Llanberis 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 Llanberis housing stock.
Living in a terraced or semi-detached house in Llanberis? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Llanberis loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Llanberis properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Llanberis engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Llanberis homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Llanberis loft.
Plastering, decorating, flooring, and interior design services to create beautiful Llanberis living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Llanberis city centre, including period properties, modern homes, and conservation areas requiring specialist Llanberis planning expertise.
Expert loft conversion services across all Llanberis suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Llanberis.
Specialist conversions for Llanberis's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Llanberis conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Llanberis Loft Conversions Completed
Average Llanberis Customer Rating
Years Serving Llanberis
Llanberis Building Control Approved
With over 15 years of experience in Llanberis, we understand local planning requirements, building regulations, and architectural styles. Our Llanberis team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Llanberis terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Llanberis semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Llanberis conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Exceptional value for money. We got quotes from three Llanberis firms and Building Group offered the best spec for the price."
- Mark Thompson, Llanberis
"Finally, a builder who turns up when they say they will! Restored my faith in tradesmen. Top job in Llanberis."
- Sophie Taylor, Llanberis
"I used to hit my head on the rafters. Now I can do jumping jacks in my new Llanberis bedroom. Incredible transformation."
- Sophie Taylor, Llanberis
Loft conversion costs in Llanberis vary based on type, size, and specifications. Typical Llanberis 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 Llanberis quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Llanberis survey and detailed quote.
A transparent guide to typical conversion costs in the Llanberis 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 Llanberis properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Llanberis 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."
Spiders don't pay rent. You should! Reclaim your roof space in Llanberis with a luxury conversion.
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