Building Group: Hillingdon's Premier Loft Experts

We don't just build lofts; we build 'peace and quiet'. Get that home office or parents' retreat you desperately need in Hillingdon.

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10-Year Warranty On all Structure
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Why Choose Loft Conversion in Hillingdon?

Transform your Hillingdon property without moving. Add space and value with our expert loft conversion service.

Increase Hillingdon Property Value

Add up to 20% to your Hillingdon property value with a professional loft conversion.

Stay in Hillingdon

No need to leave Hillingdon. Get the space you need in your current home.

Quick Hillingdon Installation

Most Hillingdon loft conversions completed in 4-6 weeks with minimal disruption.

Extra Hillingdon Living Space

Create bedrooms, offices, or playrooms perfect for Hillingdon family living.

Expert Hillingdon Loft Conversion Specialists

Transform your Hillingdon 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 Hillingdon, we create bespoke solutions tailored to your lifestyle.

Our experienced Hillingdon team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Hillingdon conversion maximizes space, natural light, and property value.

  • Dormer loft conversions in Hillingdon
  • Hip-to-gable conversions for Hillingdon homes
  • Mansard loft conversions in Hillingdon
  • Velux window installations across Hillingdon
  • En-suite bathrooms for Hillingdon lofts
  • Hillingdon planning permission support
Hillingdon loft conversion specialist at work

Hillingdon Loft Specialists

CITB Certified • Hillingdon Planning • Building Regulations

Types of Loft Conversions in Hillingdon

Choose the perfect conversion type for your Hillingdon property to maximize space and value

Velux Loft Conversion in Hillingdon

Velux Loft Conversion Hillingdon

The most cost-effective option for Hillingdon properties using roof windows for natural light. Perfect for Hillingdon homes with adequate headroom.

  • Most affordable in Hillingdon
  • Minimal structural work
  • No Hillingdon planning permission usually
  • Natural light throughout
Dormer Loft Conversion in Hillingdon

Dormer Loft Conversion Hillingdon

Add valuable floor space and headroom to your Hillingdon property with single or multiple dormers. Popular choice in Hillingdon for space optimization.

  • Maximum Hillingdon space gain
  • Improved headroom
  • Additional windows
  • Cost-effective for Hillingdon
Hip-to-Gable Conversion in Hillingdon

Hip-to-Gable Conversion Hillingdon

Transform sloping hip roofs into vertical gable walls in your Hillingdon home, significantly increasing usable floor space. Ideal for Hillingdon semi-detached properties.

  • Substantial Hillingdon space increase
  • Improved room proportions
  • Better natural light
  • Enhanced Hillingdon property value
Mansard Loft Conversion in Hillingdon

Mansard Loft Conversion Hillingdon

The premium option for Hillingdon properties creating maximum space with near-vertical walls. Perfect for period properties in Hillingdon.

  • Maximum Hillingdon floor space
  • Multiple rooms possible
  • Period Hillingdon property suitable
  • Highest value addition

Hillingdon Loft Conversion Requirements

Your Hillingdon property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Hillingdon specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Hillingdon property and budget. Most Hillingdon conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.

Hillingdon Planning & Regulations Guide

Permitted Development in Hillingdon

Most terraced and semi-detached homes in Hillingdon have a 40-50 cubic meter allowance for roof extensions without full planning permission. We handle all Lawful Development Certificate applications for you.

Hillingdon Building Control

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 Hillingdon housing stock.

Party Wall Agreements

Living in a terraced or semi-detached house in Hillingdon? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.

Complete Hillingdon Loft Conversion Services

Free Hillingdon Loft Assessment

Comprehensive evaluation of your Hillingdon loft space, structural assessment, and advice on the best conversion type for your property.

Hillingdon Design & Planning

Architectural drawings, 3D visualizations, and planning permission applications for Hillingdon properties. We handle all regulatory approvals.

Hillingdon Structural Work

Steel beam installation, floor strengthening, and staircase construction by qualified Hillingdon engineers.

Hillingdon Windows & Dormers

Velux roof windows, dormer construction, and window installations to maximize natural light in Hillingdon homes.

Hillingdon En-Suite Bathrooms

Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Hillingdon loft.

Hillingdon Interior Finishing

Plastering, decorating, flooring, and interior design services to create beautiful Hillingdon living spaces.

Our Hillingdon Loft Conversion Process

Hillingdon Planning & Design Phase

  • Free Hillingdon Survey: Comprehensive assessment of your loft space
  • Design Development: Architectural drawings for Hillingdon properties
  • Hillingdon Planning Applications: Local authority submissions where required
  • Structural Calculations: Engineering assessments for Hillingdon building control
  • Fixed Price Quote: Detailed Hillingdon pricing with full breakdown

Hillingdon Construction Phase

  • Project Management: Dedicated Hillingdon project manager
  • Structural Work: Steel beams and strengthening in Hillingdon
  • Roofing & Windows: Dormer construction for Hillingdon homes
  • Services Installation: Hillingdon certified electrical and plumbing
  • Interior Finishing: Quality finishing to Hillingdon standards

Free Hillingdon Survey

Professional space assessment

Hillingdon Design & Planning

Architectural drawings and approvals

Expert Hillingdon Construction

Professional loft specialists

Loft Conversions Across Hillingdon

Hillingdon City Centre

Professional loft conversions throughout Hillingdon city centre, including period properties, modern homes, and conservation areas requiring specialist Hillingdon planning expertise.

Hillingdon Suburbs

Expert loft conversion services across all Hillingdon suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Hillingdon.

Hillingdon Period Properties

Specialist conversions for Hillingdon's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.

Hillingdon Conservation Areas

Expert handling of Hillingdon conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.

Hillingdon Loft Conversion Statistics

500+

Hillingdon Loft Conversions Completed

4.9/5

Average Hillingdon Customer Rating

15+

Years Serving Hillingdon

100%

Hillingdon Building Control Approved

Why Choose Building Group for Hillingdon Loft Conversions?

Local Hillingdon Expertise

With over 15 years of experience in Hillingdon, we understand local planning requirements, building regulations, and architectural styles. Our Hillingdon team delivers exceptional loft conversions that enhance your property value.

Hillingdon Quality Guarantee

  • Hillingdon Planning Experts: We handle all local authority requirements
  • Local Hillingdon Team: All work by trusted local professionals
  • 10-Year Guarantee: Full warranty on all Hillingdon conversions
  • Fixed Hillingdon Pricing: No hidden costs or surprises
  • Insurance: Fully insured for Hillingdon projects

Hillingdon Service Areas

  • Hillingdon City Centre
  • North Hillingdon
  • South Hillingdon
  • East Hillingdon
  • West Hillingdon

Recent Hillingdon Loft Conversion Projects

Hip to Gable Loft Conversion in Hillingdon

Victorian Terrace - Hillingdon

Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Hillingdon terrace. Added 30sqm of living space.

Project Value: £48,000

Dormer Loft Conversion in Hillingdon

Modern Semi - Hillingdon

Dormer loft conversion in modern Hillingdon semi-detached. Created two bedrooms and bathroom for growing family.

Project Value: £42,000

Mansard Loft Conversion in Hillingdon

Period Property - Hillingdon

Mansard conversion in Hillingdon conservation area. Luxury master suite with dressing room and ensuite.

Project Value: £65,000

What Hillingdon Homeowners Say

★★★★★

"Building Group turned my scary spider attic into a 5-star hotel suite. My guests in Hillingdon never want to leave!"

- Helen Baker, Hillingdon

★★★★★

"We hired them for a shell conversion in Hillingdon and were so impressed we asked them to complete the fit-out too. Five stars."

- Victoria King, Hillingdon

★★★★★

"The best decision we made for our Hillingdon house. The extra office space is perfect. Great attention to detail from the whole team."

- William Turner, Hillingdon

Hillingdon Loft Conversion Pricing Guide

Hillingdon Loft Conversion Costs

Loft conversion costs in Hillingdon vary based on type, size, and specifications. Typical Hillingdon 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 Hillingdon quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Hillingdon survey and detailed quote.

Estimated Investment for Hillingdon Lofts

A transparent guide to typical conversion costs in the Hillingdon 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 Hillingdon properties and subject to survey.

Meet Your Hillingdon Project Lead

Senior Loft Consultant for Hillingdon

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the Hillingdon 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."

  • 20+ Years Exp.
  • CIOB Member

Get Design Ideas for Your Hillingdon Home

Ready to add value to your home? Call Building Group now for a complimentary site visit in Hillingdon.

Book Free Hillingdon Loft Survey