Transforming Knowle Roofs into Living Spaces

Experience the Building Group difference. Clean, tidy, and professional builders serving the Knowle community with pride.

Get Your Free Knowle Quote
10-Year Warranty On all Structure
FMB Member Vetted Master Builders
Fully Insured £5m Public Liability
TrustMark Gov. Endorsed Quality

Why Choose Loft Conversion in Knowle?

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

Increase Knowle Property Value

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

Stay in Knowle

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

Quick Knowle Installation

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

Extra Knowle Living Space

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

Expert Knowle Loft Conversion Specialists

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

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

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

Knowle Loft Specialists

CITB Certified • Knowle Planning • Building Regulations

Types of Loft Conversions in Knowle

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

Velux Loft Conversion in Knowle

Velux Loft Conversion Knowle

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

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

Dormer Loft Conversion Knowle

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

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

Hip-to-Gable Conversion Knowle

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

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

Mansard Loft Conversion Knowle

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

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

Knowle Loft Conversion Requirements

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

Knowle Planning & Regulations Guide

Permitted Development in Knowle

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

Knowle 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 Knowle housing stock.

Party Wall Agreements

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

Complete Knowle Loft Conversion Services

Free Knowle Loft Assessment

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

Knowle Design & Planning

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

Knowle Structural Work

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

Knowle Windows & Dormers

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

Knowle En-Suite Bathrooms

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

Knowle Interior Finishing

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

Our Knowle Loft Conversion Process

Knowle Planning & Design Phase

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

Knowle Construction Phase

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

Free Knowle Survey

Professional space assessment

Knowle Design & Planning

Architectural drawings and approvals

Expert Knowle Construction

Professional loft specialists

Loft Conversions Across Knowle

Knowle City Centre

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

Knowle Suburbs

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

Knowle Period Properties

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

Knowle Conservation Areas

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

Knowle Loft Conversion Statistics

500+

Knowle Loft Conversions Completed

4.9/5

Average Knowle Customer Rating

15+

Years Serving Knowle

100%

Knowle Building Control Approved

Why Choose Building Group for Knowle Loft Conversions?

Local Knowle Expertise

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

Knowle Quality Guarantee

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

Knowle Service Areas

  • Knowle City Centre
  • North Knowle
  • South Knowle
  • East Knowle
  • West Knowle

Recent Knowle Loft Conversion Projects

Hip to Gable Loft Conversion in Knowle

Victorian Terrace - Knowle

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

Project Value: £48,000

Dormer Loft Conversion in Knowle

Modern Semi - Knowle

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

Project Value: £42,000

Mansard Loft Conversion in Knowle

Period Property - Knowle

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

Project Value: £65,000

What Knowle Homeowners Say

★★★★★

"The 10-year guarantee gave us peace of mind. A trustworthy company serving the Knowle area."

- William Turner, Knowle

★★★★★

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

- David Wilson, Knowle

★★★★★

"I used to hit my head on the rafters. Now I can do jumping jacks in my new Knowle bedroom. Incredible transformation."

- David Wilson, Knowle

Knowle Loft Conversion Pricing Guide

Knowle Loft Conversion Costs

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

Estimated Investment for Knowle Lofts

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

Meet Your Knowle Project Lead

Senior Loft Consultant for Knowle

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the Knowle 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

Join Our List of Happy Knowle Customers

Quality craftsmanship, guaranteed. Book your free structural survey in Knowle with Building Group.

Book Free Knowle Loft Survey