Hampstead
12 Lyndale Avenue NW2
This complete refurbishment in Hampstead reimagines a traditional family home for modern living.
Free Consultation & Itemised Quotes
READY TO BUILD IN 2027?
Ready to build packages
- Architectural measured survey
- Design and planning drawings
- Planning application preparation and submission
- Building Regulations drawings
- Structural calculations
- A detailed, no-obligation itemised quote for the build
Complete package from £3,240 including VAT.
Limited availability
Book a Free ConsultationOffer ends 30 November 2026
Plan now. Build in 2027.
Your design costs
For homeowners planning to build in 2027, we're offering just 20 complete Design & Planning Packages at the below exclusive rate.
Loft conversion
£3500£2700Save £800
All prices exclude VAT. Discount applies to projects booked before 30 November 2026.
Book a Free ConsultationOffer ends 30 November 2026
Project typeNormalNow
- Loft conversion£3500£2700
- Kitchen extension£3500£2700
- Loft + Kitchen extension£4500£3500
- Double storey extension£5900£4500
- Loft + Double storey extension£7500£5900
Ready to Build package
What's included
- 01
Planning drawings and submission
- 02
Building regulation drawings
- 03
Structural calculations
- 04
Unlimited revisions
- 05
Free no-obligation itemised quote for the build
Inside our projects
Real projects, real transformations and behind-the-scenes from our London builds.
Featured Projects
A look at recent Good Design & Build home extensions and refurbishments across London.
Wimbledon
Branksome Road SW19
A refined, light-filled living space where everyday life unfolds with ease.
Teddington
Stanley Gardens Road TW11
A narrow, challenging space transformed into a bright and functional open-plan layout.
Lambeth
Hetherington Road SW4
A stunning kitchen extension completed for our client Angus in Lambeth.
Hampstead
12 Lyndale Avenue NW2
This complete refurbishment in Hampstead reimagines a traditional family home for modern living.
Wimbledon
Branksome Road SW19
A refined, light-filled living space where everyday life unfolds with ease.
Teddington
Stanley Gardens Road TW11
A narrow, challenging space transformed into a bright and functional open-plan layout.
Lambeth
Hetherington Road SW4
A stunning kitchen extension completed for our client Angus in Lambeth.
Design and build under one roof
A full service design and build studio
At Good Design & Build, we offer a complete end-to-end service, bringing design, planning and construction together under one experienced team.
Bespoke Design & Planning
Over 16 Years of Experience
Free Consultation & Itemised Quotes
Full Cost Transparency & Project Management
Insurance Backed Warranty
What Our Clients Say
I would like to thank GDB…
"I would like to thank GDB for all of their hard work, ideas and inspiration and for being so approachable and easy to deal with during our rear extension. I would happily recommend them to anyone thinking of starting a building project."
Offer ends 30 November 2026
Book your free consultation
Tell us a little about your project and we'll arrange a no-obligation visit.
Good to know
Frequently asked questions
Many loft conversions and rear extensions fall under permitted development, but it depends on your property and any conservation or article 4 restrictions. We confirm this at your free consultation and handle either route.