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Loft Conversions & Extensions in London

Dormer, hip-to-gable, mansard, and Velux loft conversions, attic room renovations, and turnkey structural alterations.

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72 Greater London Districts
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Official Municipal Planning & Building Control Guidance

Planning Permission & Building Regs in London

Statutory local guidelines for Loft Conversions & Extensions under London City Council
London City Council Planning Portal Building Control
Permitted Development & Statutory Standards

Rear dormer loft additions permitted up to 40m³ (terraced) or 50m³ (semi-detached) under Class B. Materials must match existing finishes.

Article 4 Directions & Conservation Zones

Designated conservation areas across London require adherence to statutory Article 4 directions. Property owners must preserve original architectural profiles and consult the local planning register before altering highway-facing elevations.

Key Protected Zones: London Historic Core, Cathedral Quarter, Heritage Suburbs (20 designated areas).
Verified by Editorial Desk (Sep 2026) Request Council-Compliant Quote →
Dormer Loft Conversion Architectural Cross-Section Technical CAD Blueprint

Dormer Loft Conversion Architectural Cross-Section

Permitted development cubic volume allowance: 40m³ (terraced) / 50m³ (semi/detached) with RSJ structural steel placement.

Reference: Approved Document B (Fire Safety) & Class B Permitted Development
Showing 76–100 of 124 verified loft conversions & extensions in Greater London
Space Builders-London

Space Builders-London

Verified Local Listing
★ 5.00 (0 reviews)
• Base: N16 • Quotes on Request
Loft Conversions & Extensions
07969 345420 View Profile & Reviews
Plus Rooms

Plus Rooms

Verified Local Listing
★ 4.90 (382 reviews)
• Base: NW6 • Quotes on Request
Loft Conversions & Extensions
0800 917 7127 View Profile & Reviews
i Loft Conversions Ltd

i Loft Conversions Ltd

Verified Local Listing
★ 4.90 (151 reviews)
• Base: E15 • Quotes on Request
Loft Conversions & Extensions
020 3759 5578 View Profile & Reviews
Blue Engineering "We Make Things Stand Up"

Blue Engineering "We Make Things Stand Up"

Verified Local Listing
★ 4.90 (116 reviews)
• Base: E1 • Quotes on Request
Loft Conversions & Extensions
020 7247 3811 View Profile & Reviews
London Lofts

London Lofts

Verified Local Listing
★ 4.90 (72 reviews)
• Base: W1 • Quotes on Request
Loft Conversions & Extensions
020 3929 2634 View Profile & Reviews
Design Team

Design Team

Verified Local Listing
★ 4.90 (71 reviews)
• Base: SW9 • Quotes on Request
Loft Conversions & Extensions Architects & Surveyors
020 7242 5353 View Profile & Reviews
Prestigeconstruction4u limited

Prestigeconstruction4u limited

Verified Local Listing
★ 4.90 (48 reviews)
• Base: E5 • Quotes on Request
Loft Conversions & Extensions
07840 060501 View Profile & Reviews
NGC Build

NGC Build

Verified Local Listing
★ 4.90 (19 reviews)
• Base: N5 • Quotes on Request
Loft Conversions & Extensions
020 3843 8323 View Profile & Reviews
Trovix Group

Trovix Group

Verified Local Listing
★ 4.90 (18 reviews)
• Base: NW10 • Quotes on Request
Loft Conversions & Extensions
0333 049 2922 View Profile & Reviews
MoreSpace

MoreSpace

Verified Local Listing
★ 4.80 (344 reviews)
• Base: W5 • Quotes on Request
Loft Conversions & Extensions
020 8896 0777 View Profile & Reviews
Touchstone Lofts

Touchstone Lofts

Verified Local Listing
★ 4.80 (76 reviews)
• Base: W4 • Quotes on Request
Loft Conversions & Extensions
020 7870 1117 View Profile & Reviews
30 Day Extensions Ltd

30 Day Extensions Ltd

Verified Local Listing
★ 4.80 (58 reviews)
• Base: SW19 • Quotes on Request
Loft Conversions & Extensions
07999 914552 View Profile & Reviews
Era Construction Solutions Ltd.

Era Construction Solutions Ltd.

Verified Local Listing
★ 4.80 (45 reviews)
• Base: N7 • Quotes on Request
Groundworks & Excavations Loft Conversions & Extensions
07385 655282 View Profile & Reviews
Proficiency Design and Build

Proficiency Design and Build

Verified Local Listing
★ 4.80 (43 reviews)
• Base: NW6 • Quotes on Request
Loft Conversions & Extensions
020 7435 6231 View Profile & Reviews
LLAC construction

LLAC construction

Verified Local Listing
★ 4.80 (35 reviews)
• Base: N10 • Quotes on Request
Loft Conversions & Extensions
020 3797 6454 View Profile & Reviews
AE4 Build Ltd

AE4 Build Ltd

Verified Local Listing
★ 4.80 (29 reviews)
• Base: E17 • Quotes on Request
Loft Conversions & Extensions Builders & Bricklayers
07891 231056 View Profile & Reviews
JD Fulham Loft Conversion

JD Fulham Loft Conversion

Verified Local Listing
★ 4.80 (23 reviews)
• Base: SW6 • Quotes on Request
Loft Conversions & Extensions
07520 637577 View Profile & Reviews
Pioneer Concepts Ltd

Pioneer Concepts Ltd

Verified Local Listing
★ 4.80 (23 reviews)
• Base: E17 • Quotes on Request
Groundworks & Excavations Loft Conversions & Extensions
07912 577581 View Profile & Reviews
S & M Solutions Ltd | Design and Build Contractor

S & M Solutions Ltd | Design and Build Contractor

Verified Local Listing
★ 4.80 (22 reviews)
• Base: SE3 • Quotes on Request
Loft Conversions & Extensions Builders & Bricklayers
020 3092 3791 View Profile & Reviews
ANQ DESIGN & BUILD LTD

ANQ DESIGN & BUILD LTD

Verified Local Listing
★ 4.80 (21 reviews)
• Base: NW2 • Quotes on Request
Loft Conversions & Extensions
020 3355 1366 View Profile & Reviews
Canyon Design and Build Ltd

Canyon Design and Build Ltd

Verified Local Listing
★ 4.80 (17 reviews)
• Base: E3 • Quotes on Request
Loft Conversions & Extensions
07712 100753 View Profile & Reviews
Zero Point One Construction

Zero Point One Construction

Verified Local Listing
★ 4.80 (4 reviews)
• Base: NW1 • Quotes on Request
Loft Conversions & Extensions
07833 333308 View Profile & Reviews
Portico Design & Build

Portico Design & Build

Verified Local Listing
★ 4.70 (36 reviews)
• Base: N8 • Quotes on Request
Loft Conversions & Extensions
020 8342 8289 View Profile & Reviews
Lindum Lofts & Extensions

Lindum Lofts & Extensions

Verified Local Listing
★ 4.70 (22 reviews)
• Base: W5 • Quotes on Request
Loft Conversions & Extensions
020 8998 2843 View Profile & Reviews
Smart Conversion Ltd

Smart Conversion Ltd

Verified Local Listing
★ 4.70 (15 reviews)
• Base: W3 • Quotes on Request
Loft Conversions & Extensions
020 8740 0728 View Profile & Reviews

Local Housing & Property Considerations in London

Georgian squares, London stock yellow-brick Victorian terraces, and modern high-rise developments; ultra-low emission zone (ULEZ) and parking logistics. When commissioning work in London, always ensure your tradesperson has direct experience with local building styles, planning regulations, and regional conservation guidelines.

Common Questions & Answers

Frequently Asked Questions About Loft Conversions & Extensions in London

How much does a Loft-conversions cost per hour in London?
In London, a qualified Loft-conversions typically charges between £45 – £75 per hour, or £280 – £450 for a full working day. Rates vary depending on emergency callouts, required materials, and project complexity.
What credentials or certifications should I check for a Loft-conversions in London?
Always verify that your Loft-conversions is accredited by competent person schemes. For gas or heating work, registration with the Gas Safe Register is a legal requirement. Additionally, check for active Public Liability Insurance (minimum £2 million recommended).
How many verified Loft-conversions are available in London on HireLondon?
We currently index 124 screened Loft-conversions operating across London and surrounding postal districts, maintaining an average customer satisfaction rating of 4.8★ based on 3,540 authentic customer reviews via Google.
Are quotes free, and do Loft-conversions in London charge a call-out fee?
Most reputable Loft-conversions in London provide free, no-obligation written quotes for scheduled home improvement projects. For emergency out-of-hours callouts (evenings/weekends), a minimum call-out charge of 1 hour is standard.