Building Group Twenty: Quality You Can Trust

Add a luxurious master suite or a quiet home office. Our Twenty team are experts in maximizing light and space in every loft conversion.

Get Your Free Twenty 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 Twenty?

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

Increase Twenty Property Value

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

Stay in Twenty

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

Quick Twenty Installation

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

Extra Twenty Living Space

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

Expert Twenty Loft Conversion Specialists

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

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

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

Twenty Loft Specialists

CITB Certified • Twenty Planning • Building Regulations

Types of Loft Conversions in Twenty

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

Velux Loft Conversion in Twenty

Velux Loft Conversion Twenty

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

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

Dormer Loft Conversion Twenty

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

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

Hip-to-Gable Conversion Twenty

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

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

Mansard Loft Conversion Twenty

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

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

Twenty Loft Conversion Requirements

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

Twenty Planning & Regulations Guide

Permitted Development in Twenty

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

Twenty 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 Twenty housing stock.

Party Wall Agreements

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

Complete Twenty Loft Conversion Services

Free Twenty Loft Assessment

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

Twenty Design & Planning

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

Twenty Structural Work

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

Twenty Windows & Dormers

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

Twenty En-Suite Bathrooms

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

Twenty Interior Finishing

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

Our Twenty Loft Conversion Process

Twenty Planning & Design Phase

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

Twenty Construction Phase

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

Free Twenty Survey

Professional space assessment

Twenty Design & Planning

Architectural drawings and approvals

Expert Twenty Construction

Professional loft specialists

Loft Conversions Across Twenty

Twenty City Centre

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

Twenty Suburbs

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

Twenty Period Properties

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

Twenty Conservation Areas

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

Twenty Loft Conversion Statistics

500+

Twenty Loft Conversions Completed

4.9/5

Average Twenty Customer Rating

15+

Years Serving Twenty

100%

Twenty Building Control Approved

Why Choose Building Group for Twenty Loft Conversions?

Local Twenty Expertise

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

Twenty Quality Guarantee

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

Twenty Service Areas

  • Twenty City Centre
  • North Twenty
  • South Twenty
  • East Twenty
  • West Twenty

Recent Twenty Loft Conversion Projects

Hip to Gable Loft Conversion in Twenty

Victorian Terrace - Twenty

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

Project Value: £48,000

Dormer Loft Conversion in Twenty

Modern Semi - Twenty

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

Project Value: £42,000

Mansard Loft Conversion in Twenty

Period Property - Twenty

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

Project Value: £65,000

What Twenty Homeowners Say

★★★★★

"Cannot recommend them enough for loft conversions in Twenty. They handled all the planning permission and the build was smooth."

- Rebecca Hill, Twenty

★★★★★

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

- Richard Harris, Twenty

★★★★★

"Finally, a builder who turns up when they say they will! Restored my faith in tradesmen. Top job in Twenty."

- Emily Lewis, Twenty

Twenty Loft Conversion Pricing Guide

Twenty Loft Conversion Costs

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

Estimated Investment for Twenty Lofts

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

Meet Your Twenty Project Lead

Senior Loft Consultant for Twenty

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the Twenty 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

Stop Dreaming, Start Building in Twenty

Your house is like a TARDIS... bigger on the inside (once we finish your Twenty loft conversion!).

Book Free Twenty Loft Survey