Create the home you've always wanted. Our Caernarfon loft experts turn dark, dusty attics into bright, functional, and beautiful rooms.
Get Your Free Caernarfon QuoteTransform your Caernarfon property without moving. Add space and value with our expert loft conversion service.
Add up to 20% to your Caernarfon property value with a professional loft conversion.
No need to leave Caernarfon. Get the space you need in your current home.
Most Caernarfon loft conversions completed in 4-6 weeks with minimal disruption.
Create bedrooms, offices, or playrooms perfect for Caernarfon family living.
Transform your Caernarfon 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 Caernarfon, we create bespoke solutions tailored to your lifestyle.
Our experienced Caernarfon team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Caernarfon conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Caernarfon property to maximize space and value
The most cost-effective option for Caernarfon properties using roof windows for natural light. Perfect for Caernarfon homes with adequate headroom.
Add valuable floor space and headroom to your Caernarfon property with single or multiple dormers. Popular choice in Caernarfon for space optimization.
Transform sloping hip roofs into vertical gable walls in your Caernarfon home, significantly increasing usable floor space. Ideal for Caernarfon semi-detached properties.
The premium option for Caernarfon properties creating maximum space with near-vertical walls. Perfect for period properties in Caernarfon.
Your Caernarfon property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Caernarfon specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Caernarfon property and budget. Most Caernarfon conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Caernarfon 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 Caernarfon housing stock.
Living in a terraced or semi-detached house in Caernarfon? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Caernarfon loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Caernarfon properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Caernarfon engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Caernarfon homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Caernarfon loft.
Plastering, decorating, flooring, and interior design services to create beautiful Caernarfon living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Caernarfon city centre, including period properties, modern homes, and conservation areas requiring specialist Caernarfon planning expertise.
Expert loft conversion services across all Caernarfon suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Caernarfon.
Specialist conversions for Caernarfon's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Caernarfon conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Caernarfon Loft Conversions Completed
Average Caernarfon Customer Rating
Years Serving Caernarfon
Caernarfon Building Control Approved
With over 15 years of experience in Caernarfon, we understand local planning requirements, building regulations, and architectural styles. Our Caernarfon team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Caernarfon terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Caernarfon semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Caernarfon conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"We are delighted with our Velux conversion in Caernarfon. The builders were respectful and the finish is high quality. Highly recommended."
- Robert Smith, Caernarfon
"Building Group were the only company to spot a potential issue with our chimney in Caernarfon and solved it before starting. True experts."
- Emily Lewis, Caernarfon
"I actually miss having the builders around! Friendly, funny, and polite team. They became part of the family during our Caernarfon project."
- Thomas Brown, Caernarfon
Loft conversion costs in Caernarfon vary based on type, size, and specifications. Typical Caernarfon 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 Caernarfon quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Caernarfon survey and detailed quote.
A transparent guide to typical conversion costs in the Caernarfon 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 Caernarfon properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Caernarfon 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."
Ready to add value to your home? Call Building Group now for a complimentary site visit in Caernarfon.
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