Armstrong Simmonds Architects is a South West London architectural studio founded in 2010. Its published residential work includes individual homes, apartments, refurbishment, basements, extensions and loft conversions across London and the South East. The official RIBA listing describes services from surveying and briefing through design, visualisation, planning, building control, technical detailing, tendering and contract administration, with interior design also available. Published examples include extensions in Twickenham, Battersea and Clapham. Confirm the relevant team, consultant responsibilities and stages of service before agreeing a written appointment.
Get to know the architect firm
Architect firm overview
- Architect firm address
- 23 Battersea Business Centre, 99-109 Lavender Hill, London SW11 5QLFrom the supplied business directory; confirm current arrangements.
- Location
- London · SW11 5QL
- Residential work
- Included in the supplied residential directory. Current project suitability is confirmed during your enquiry.
Find your fit
Services & project interests
Topics drawn from published firm information and official directory sources. These are research signals, not independently verified specialisms or a guarantee of current availability.
Selected published projects
- Side & Rear Extension — Twickenham
- Extension & Refurbishment — Battersea
- Side Infill Extension — Clapham
Project names are taken from official firm or RIBA sources, checked 2026-10-28. Ask the practice about the work and its current relevance to your brief.
Before planning
Ask about relevant experience, feasibility, survey needs and the planning route.
From design to build
Confirm technical drawings, consultant coordination, tender support and any site involvement.
Ask for examples of similar completed projects, the named team and the services included in their proposal. Project photographs will appear here when the practice supplies or approves them.
Independent feedback
Reviews from Houzz
5.0 / 5 · 19 reviews on Houzz
Snapshot checked 29 October 2026. These reviews were published on Houzz, rather than collected or independently verified by Compare Architects. The summaries below are our own wording.
Praised careful detailing and effective communication.
Matt Gentry · Jul 2026Valued alternative designs and introductions to specialist consultants.
Laura Smith · Apr 2026Appreciated listening and creative ideas for terraced-house refurbishment.
Chris Walters · Mar 2026
Read 7 more review summaries
Praised design and support through a loft conversion and extension.
Matt Wood · Feb 2026Valued guidance through conservation-area planning for renovation and extension.
HU-678671140 · May 2024Appreciated design work for Victorian-house refurbishment.
HU-889414139 · Dec 2023A design collaborator praised technical competence and coordination on residential work.
Teodor Perfanov KPT Design · Dec 2022Valued a personable approach and attention to the drawing brief.
HU-506170263 · Nov 2022Reported satisfaction with design that reflected their requirements.
HU-988735279 · May 2022Praised planning support for a basement and side-return scheme.
HU-581613823 · May 2021
Official RIBA listing checked
The architect firm’s name and address were matched to its official RIBA practice listing on 29 October 2026. Individual ARB registration, insurance, availability and the proposed appointment need separate confirmation.
View the official RIBA practice listing · What this check means
Evidence matters
Credentials, fees & availability
- Named architect
- Not yet independently checked for this directory entry. Check the named professional on the ARB register .
- RIBA status & insurance
- The official RIBA practice listing was matched on 29 October 2026. Individual ARB registration, insurance and availability need separate confirmation.
- Fees & earliest start
- Request a written proposal for your scope, including VAT, revisions, site visits and exclusions.
Information & corrections
Directory source: supplied RIBA Residential Directory. Published website checked 28 October 2026. Website topics are collected from public pages and may be incomplete. Firm-confirmed information will be labelled separately.
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