We Raise the Roof (Literally) in King's Cross

From initial design to building control sign-off, we handle everything. Trust Building Group for stress-free loft conversions in King's Cross.

Get Your Free King's Cross Quote
10-Year Warranty On all Structure
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Fully Insured £5m Public Liability
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Why Choose Loft Conversion in King's Cross?

Transform your King's Cross property without moving. Add space and value with our expert loft conversion service.

Increase King's Cross Property Value

Add up to 20% to your King's Cross property value with a professional loft conversion.

Stay in King's Cross

No need to leave King's Cross. Get the space you need in your current home.

Quick King's Cross Installation

Most King's Cross loft conversions completed in 4-6 weeks with minimal disruption.

Extra King's Cross Living Space

Create bedrooms, offices, or playrooms perfect for King's Cross family living.

Expert King's Cross Loft Conversion Specialists

Transform your King's Cross 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 King's Cross, we create bespoke solutions tailored to your lifestyle.

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

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

King's Cross Loft Specialists

CITB Certified • King's Cross Planning • Building Regulations

Types of Loft Conversions in King's Cross

Choose the perfect conversion type for your King's Cross property to maximize space and value

Velux Loft Conversion in King's Cross

Velux Loft Conversion King's Cross

The most cost-effective option for King's Cross properties using roof windows for natural light. Perfect for King's Cross homes with adequate headroom.

  • Most affordable in King's Cross
  • Minimal structural work
  • No King's Cross planning permission usually
  • Natural light throughout
Dormer Loft Conversion in King's Cross

Dormer Loft Conversion King's Cross

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

  • Maximum King's Cross space gain
  • Improved headroom
  • Additional windows
  • Cost-effective for King's Cross
Hip-to-Gable Conversion in King's Cross

Hip-to-Gable Conversion King's Cross

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

  • Substantial King's Cross space increase
  • Improved room proportions
  • Better natural light
  • Enhanced King's Cross property value
Mansard Loft Conversion in King's Cross

Mansard Loft Conversion King's Cross

The premium option for King's Cross properties creating maximum space with near-vertical walls. Perfect for period properties in King's Cross.

  • Maximum King's Cross floor space
  • Multiple rooms possible
  • Period King's Cross property suitable
  • Highest value addition

King's Cross Loft Conversion Requirements

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

King's Cross Planning & Regulations Guide

Permitted Development in King's Cross

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

King's Cross 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 King's Cross housing stock.

Party Wall Agreements

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

Complete King's Cross Loft Conversion Services

Free King's Cross Loft Assessment

Comprehensive evaluation of your King's Cross loft space, structural assessment, and advice on the best conversion type for your property.

King's Cross Design & Planning

Architectural drawings, 3D visualizations, and planning permission applications for King's Cross properties. We handle all regulatory approvals.

King's Cross Structural Work

Steel beam installation, floor strengthening, and staircase construction by qualified King's Cross engineers.

King's Cross Windows & Dormers

Velux roof windows, dormer construction, and window installations to maximize natural light in King's Cross homes.

King's Cross En-Suite Bathrooms

Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your King's Cross loft.

King's Cross Interior Finishing

Plastering, decorating, flooring, and interior design services to create beautiful King's Cross living spaces.

Our King's Cross Loft Conversion Process

King's Cross Planning & Design Phase

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

King's Cross Construction Phase

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

Free King's Cross Survey

Professional space assessment

King's Cross Design & Planning

Architectural drawings and approvals

Expert King's Cross Construction

Professional loft specialists

Loft Conversions Across King's Cross

King's Cross City Centre

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

King's Cross Suburbs

Expert loft conversion services across all King's Cross suburban areas. Specializing in semi-detached, detached, and terraced properties throughout King's Cross.

King's Cross Period Properties

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

King's Cross Conservation Areas

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

King's Cross Loft Conversion Statistics

500+

King's Cross Loft Conversions Completed

4.9/5

Average King's Cross Customer Rating

15+

Years Serving King's Cross

100%

King's Cross Building Control Approved

Why Choose Building Group for King's Cross Loft Conversions?

Local King's Cross Expertise

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

King's Cross Quality Guarantee

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

King's Cross Service Areas

  • King's Cross City Centre
  • North King's Cross
  • South King's Cross
  • East King's Cross
  • West King's Cross

Recent King's Cross Loft Conversion Projects

Hip to Gable Loft Conversion in King's Cross

Victorian Terrace - King's Cross

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

Project Value: £48,000

Dormer Loft Conversion in King's Cross

Modern Semi - King's Cross

Dormer loft conversion in modern King's Cross semi-detached. Created two bedrooms and bathroom for growing family.

Project Value: £42,000

Mansard Loft Conversion in King's Cross

Period Property - King's Cross

Mansard conversion in King's Cross conservation area. Luxury master suite with dressing room and ensuite.

Project Value: £65,000

What King's Cross Homeowners Say

★★★★★

"Great experience from the quote to the final sign-off. The project manager kept us updated every week on our King's Cross build."

- George Adams, King's Cross

★★★★★

"Fantastic loft conversion in our King's Cross home. The team was professional, tidy, and finished on time. Our new master bedroom with ensuite is stunning."

- James Walker, King's Cross

★★★★★

"The 10-year guarantee gave us peace of mind. A trustworthy company serving the King's Cross area."

- Sarah Jenkins, King's Cross

King's Cross Loft Conversion Pricing Guide

King's Cross Loft Conversion Costs

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

Estimated Investment for King's Cross Lofts

A transparent guide to typical conversion costs in the King's Cross 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 King's Cross properties and subject to survey.

Meet Your King's Cross Project Lead

Senior Loft Consultant for King's Cross

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the King's Cross 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

Create a New Master Bedroom in King's Cross

Get the extra space you need without the stress of moving. Expert advice for King's Cross families.

Book Free King's Cross Loft Survey