2026 Part L Compliant Builds · All London Boroughs

Garden Rooms
London

Bespoke garden offices, gyms, music studios, and annexes — designed and built by vetted London specialists to the 2026 performance standard. Free quotes, no obligation.

0.18 W/m²K

Wall U-value (Part L 2026)

5–15%

Property value uplift

10–15 days

Typical build time

£103

LDC fee (all London boroughs)

Why London Homeowners Choose Us

Vetted Installers Only

Every installer in our network is checked for public liability insurance (min £2m), Part P electrical certification, structural warranties, and verifiable London customer references before they appear on our platform.

2026 Spec as Standard

Our baseline specification exceeds Part L 2026 requirements — 0.18 W/m²K wall U-value, A-rated argon-filled glazing, and SIPs panel construction. Not an upgrade. The floor.

LDC Support Included

Every quote includes a planning position assessment. Where a Lawful Development Certificate is appropriate (£103 at all London boroughs in 2026), your installer will support the application.

Local Borough Knowledge

Conservation areas, Article 4 directions, party wall notices — our recommended installers know the planning quirks of every London borough. They check before they quote.

No Obligation Quotes

Submit your details once and receive up to three competitive quotes from local, vetted installers. No sales calls, no pressure, no hidden charges for the comparison service.

Full Documentation

Every completed project comes with a Part P electrical certificate, structural warranty, materials specification sheet, and signed Building Control sign-off where required.

Get Your Free Garden Room Quote

Matched to vetted, local London installers within 24 hours. Up to three competitive quotes, no obligation.

Free site assessment included
Planning position check at no charge
LDC application support
Part L 2026 spec guaranteed

Start Your Project

Free quotes · No obligation · All London boroughs