Experience the Building Group difference. Clean, tidy, and professional builders serving the Clerkenwell community with pride.
Get Your Free Clerkenwell QuoteTransform your Clerkenwell property without moving. Add space and value with our expert loft conversion service.
Add up to 20% to your Clerkenwell property value with a professional loft conversion.
No need to leave Clerkenwell. Get the space you need in your current home.
Most Clerkenwell loft conversions completed in 4-6 weeks with minimal disruption.
Create bedrooms, offices, or playrooms perfect for Clerkenwell family living.
Transform your Clerkenwell 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 Clerkenwell, we create bespoke solutions tailored to your lifestyle.
Our experienced Clerkenwell team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Clerkenwell conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Clerkenwell property to maximize space and value
The most cost-effective option for Clerkenwell properties using roof windows for natural light. Perfect for Clerkenwell homes with adequate headroom.
Add valuable floor space and headroom to your Clerkenwell property with single or multiple dormers. Popular choice in Clerkenwell for space optimization.
Transform sloping hip roofs into vertical gable walls in your Clerkenwell home, significantly increasing usable floor space. Ideal for Clerkenwell semi-detached properties.
The premium option for Clerkenwell properties creating maximum space with near-vertical walls. Perfect for period properties in Clerkenwell.
Your Clerkenwell property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Clerkenwell specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Clerkenwell property and budget. Most Clerkenwell conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Clerkenwell 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 Clerkenwell housing stock.
Living in a terraced or semi-detached house in Clerkenwell? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Clerkenwell loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Clerkenwell properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Clerkenwell engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Clerkenwell homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Clerkenwell loft.
Plastering, decorating, flooring, and interior design services to create beautiful Clerkenwell living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Clerkenwell city centre, including period properties, modern homes, and conservation areas requiring specialist Clerkenwell planning expertise.
Expert loft conversion services across all Clerkenwell suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Clerkenwell.
Specialist conversions for Clerkenwell's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Clerkenwell conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Clerkenwell Loft Conversions Completed
Average Clerkenwell Customer Rating
Years Serving Clerkenwell
Clerkenwell Building Control Approved
With over 15 years of experience in Clerkenwell, we understand local planning requirements, building regulations, and architectural styles. Our Clerkenwell team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Clerkenwell terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Clerkenwell semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Clerkenwell conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"We hired them for a shell conversion in Clerkenwell and were so impressed we asked them to complete the fit-out too. Five stars."
- Maria Garcia, Clerkenwell
"The 10-year guarantee gave us peace of mind. A trustworthy company serving the Clerkenwell area."
- James Walker, Clerkenwell
"Top quality dormer conversion. Added significant value to our Clerkenwell property. Friendly team and very clean working environment."
- Mark Thompson, Clerkenwell
Loft conversion costs in Clerkenwell vary based on type, size, and specifications. Typical Clerkenwell 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 Clerkenwell quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Clerkenwell survey and detailed quote.
A transparent guide to typical conversion costs in the Clerkenwell 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 Clerkenwell properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Clerkenwell 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."
We are working in Clerkenwell right now. Call us to arrange a viewing of our current projects near you.
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