Transform your home with a Building Group loft conversion. We offer fixed-price quotes and a dedicated project manager for every job in Greencastle.
Get Your Free Greencastle QuoteTransform your Greencastle property without moving. Add space and value with our expert loft conversion service.
Add up to 20% to your Greencastle property value with a professional loft conversion.
No need to leave Greencastle. Get the space you need in your current home.
Most Greencastle loft conversions completed in 4-6 weeks with minimal disruption.
Create bedrooms, offices, or playrooms perfect for Greencastle family living.
Transform your Greencastle 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 Greencastle, we create bespoke solutions tailored to your lifestyle.
Our experienced Greencastle team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Greencastle conversion maximizes space, natural light, and property value.
Choose the perfect conversion type for your Greencastle property to maximize space and value
The most cost-effective option for Greencastle properties using roof windows for natural light. Perfect for Greencastle homes with adequate headroom.
Add valuable floor space and headroom to your Greencastle property with single or multiple dormers. Popular choice in Greencastle for space optimization.
Transform sloping hip roofs into vertical gable walls in your Greencastle home, significantly increasing usable floor space. Ideal for Greencastle semi-detached properties.
The premium option for Greencastle properties creating maximum space with near-vertical walls. Perfect for period properties in Greencastle.
Your Greencastle property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Greencastle specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Greencastle property and budget. Most Greencastle conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.
Most terraced and semi-detached homes in Greencastle 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 Greencastle housing stock.
Living in a terraced or semi-detached house in Greencastle? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.
Comprehensive evaluation of your Greencastle loft space, structural assessment, and advice on the best conversion type for your property.
Architectural drawings, 3D visualizations, and planning permission applications for Greencastle properties. We handle all regulatory approvals.
Steel beam installation, floor strengthening, and staircase construction by qualified Greencastle engineers.
Velux roof windows, dormer construction, and window installations to maximize natural light in Greencastle homes.
Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Greencastle loft.
Plastering, decorating, flooring, and interior design services to create beautiful Greencastle living spaces.
Professional space assessment
Architectural drawings and approvals
Professional loft specialists
Professional loft conversions throughout Greencastle city centre, including period properties, modern homes, and conservation areas requiring specialist Greencastle planning expertise.
Expert loft conversion services across all Greencastle suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Greencastle.
Specialist conversions for Greencastle's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.
Expert handling of Greencastle conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.
Greencastle Loft Conversions Completed
Average Greencastle Customer Rating
Years Serving Greencastle
Greencastle Building Control Approved
With over 15 years of experience in Greencastle, we understand local planning requirements, building regulations, and architectural styles. Our Greencastle team delivers exceptional loft conversions that enhance your property value.
Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Greencastle terrace. Added 30sqm of living space.
Project Value: £48,000
Dormer loft conversion in modern Greencastle semi-detached. Created two bedrooms and bathroom for growing family.
Project Value: £42,000
Mansard conversion in Greencastle conservation area. Luxury master suite with dressing room and ensuite.
Project Value: £65,000
"Building Group turned my scary spider attic into a 5-star hotel suite. My guests in Greencastle never want to leave!"
- Daniel Evans, Greencastle
"They finished ahead of schedule! In the building trade! Unheard of! Best crew in Greencastle by a mile."
- David Wilson, Greencastle
"The structural work was done quickly and safely. As a Greencastle local, I appreciated their knowledge of local planning rules."
- Sophie Taylor, Greencastle
Loft conversion costs in Greencastle vary based on type, size, and specifications. Typical Greencastle 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 Greencastle quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Greencastle survey and detailed quote.
A transparent guide to typical conversion costs in the Greencastle 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 Greencastle properties and subject to survey.
Senior Structural Specialist
"I oversee all loft conversions in the Greencastle 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."
Speak to our friendly team about your requirements and get a fixed-price quote for your Greencastle conversion.
Book Free Greencastle Loft Survey