What areas do you cover?

We're based in East Molesey (KT8) and typically cover Elmbridge, Surrey and SW London within roughly a 20-mile radius—including Kingston upon Thames, Esher, Hampton Court, Thames Ditton, Weybridge and surrounding areas.

What information should I include in my enquiry?

If you can, share your postcode, the type of project (extension, loft conversion, renovation or design & build), a rough budget range, ideal timeframe and any links/photos that show what you're aiming for.

Do you offer site visits and quotations?

Yes. Once we understand your goals, we can arrange a visit to discuss feasibility, constraints and next steps. Where appropriate, we provide a clear, fixed-price quotation with defined scope and specifications.

Can you help with planning permission and Building Regulations?

Yes. We can advise on whether planning may be required and support applications if needed. We also coordinate Building Regulations compliance and inspections as part of a well-managed project. Learn more: Planning Permission and Building Regulations.

Do you manage the full design & build process?

We can take care of the full journey—from early ideas and design coordination through to construction, finishes and handover—so you have a single point of accountability. See: Design & Build and Our Process.

How quickly will you respond?

We aim to reply as quickly as possible during working hours. If your enquiry is time-sensitive, please call us and we'll do our best to help.

Contact Us

Tell us about your project

30 years experience
10-year structural guarantee
Fixed fee quotation
5% Scheduling discount
500+ Successful projects

Call Now

020 3092 3961

Email Us

info@hwpdesignandbuild.co.uk

Address

36 Southfields, Molesey, East Molesey KT8 0BP

Let's talk about your project

Thinking about a house extension, loft conversion, renovation or a complete design & build service in Elmbridge, Surrey or SW London? Send us a few details and we'll come back to you with practical next steps.

Helpful to include:

Postcode and (optional) project address
Project type, rough budget range and ideal timeframe
Any links, photos or notes on layout/finish goals

Upload plans, photos or documents (optional)

Up to 5 files. JPG, PNG, GIF, WEBP, PDF, DOC or DOCX only. Maximum 10MB per file, 25MB total.

Prefer to explore first? View our recent work in Projects.

Why choose HWP Design & Build?

Fixed-price clarity, one-team accountability and trusted local experience

Choosing a builder is about trust, communication and certainty. Our process is designed to reduce surprises before construction begins, keep responsibility clear and give homeowners a smoother route from early ideas to finished build.

Fixed-price quotation clarity

We build quotations around an agreed scope and specification, helping you understand what is included before work starts.

Request a quotation

One accountable team

Design, structure, approvals, build, finishing and aftercare are coordinated through one managed route, reducing confusion and handover gaps.

Explore design & build

30+ years’ experience

Our team brings decades of hands-on experience across domestic construction, house extensions, loft conversions and refurbishments.

Read about us

Local Elmbridge knowledge

Based in East Molesey, we understand the property types, planning sensitivities, access constraints and homeowner priorities common across Elmbridge and Surrey.

View East Molesey services

Planning and compliance support

We help you understand planning permission, permitted development, structural requirements, Building Regulations, Building Control and party wall considerations.

View planning support