Architects in Hertfordshire
13 practices covering Hertfordshire. Listings are business information researched by Renovome; contact details and matching happen inside Workspace.
Appointing an architect in Hertfordshire
Hertfordshire architect appointments are mainly extensions and remodelling of commuter-belt housing, plus conservation work in the older market towns.
Property you'll be working with in Hertfordshire
Interwar and post-war semis and detached houses in St Albans, Watford, Hitchin and Hertford, timber-framed and listed property in the town centres, and good-sized rear gardens in the suburbs.
Planning in Hertfordshire
Green Belt covers a large part of the county, which limits extension volumes, and St Albans in particular has extensive conservation area and listed building coverage. Each district council publishes its own householder guidance.
What architects charge in Hertfordshire
£1,800 to £4,000 for planning drawings and 8% to 13% of build cost for a full service.
Indicative 2026 ranges and local context, not quotations or planning advice. Last reviewed: September 2026.
A•••• D••••• L••
UK architectural design practice providing residential design, home-extension, renovation, planning or building-regulations services in Hertfordshire.
A•••••• A••••••••
UK architecture or architectural design practice providing residential design, extensions, renovations, new homes or related services in Buckinghamshire / Hertfordshire.
C•••••• A••••••••
UK architecture or architectural design practice providing residential, renovation, extension, new-build or related architectural services in Berkhamsted / Hertfordshire.
D•••• A••••••••
UK architectural design practice supporting residential extensions, renovations, planning or technical design in Hertfordshire.
H•••••••• A••••••••
UK architecture or architectural design practice providing residential, renovation, extension, new-build or related architectural services in Berkhamsted / Hertfordshire.
L•• P••••••• &• D•••••
UK architecture or architectural design practice providing residential design, planning and related services in Bedfordshire / Hertfordshire.
M•••• S••••••• A•••••••• D•••••
UK architecture or architectural design practice providing residential design, planning and related services in Hertfordshire.
R• P•••••••
UK architecture or architectural design practice providing residential design, planning and related services in Hertfordshire.
S•• F•••
UK architecture or architectural design practice providing residential design, planning and related services in Bedfordshire / Hertfordshire.
S••• W•••• A••••••••
UK architecture or architectural design practice providing residential, renovation, extension, new-build or related architectural services in St Albans / Hertfordshire.
S•••••• P••••• S•••••
UK architectural design practice providing residential design, home-extension, renovation, planning or building-regulations services in St Albans, Hertfordshire.
T•• B•••• C••••••
UK architectural design practice providing residential design, home-extension, renovation, planning or building-regulations services in Hertfordshire.
T•• L•• D•••••
UK architecture or architectural design practice providing residential design, planning and related services in Hertfordshire.
How to choose an architect in Hertfordshire
Bring an architect or architectural designer in first, before you commit to a layout or a budget. They test what is possible on your house, produce the drawings a builder can price, and handle the planning application.
- Check whether they are ARB registered, and whether the practice is RIBA chartered.
- Ask to see two projects the same size and type as yours, in the same kind of property.
- Ask which stages the fee covers, and what is charged separately.
- Ask who does the building regulations drawings and who answers the builder's questions on site.
- Ask about their planning approval record with your local council.
What architects in Hertfordshire typically work on
- Rear, side return and wrap-around extensions
- Loft conversions and roof alterations
- Whole-house renovations and reconfigurations
- Planning applications, appeals and permitted development checks
- Building regulations packages and tender drawings
Typical 2026 fees for architects
| Item | Typical 2026 cost |
|---|---|
| Feasibility and concept design | £1,200 - £3,500 |
| Planning drawings and application | £1,800 - £5,000 |
| Building regulations package | £1,500 - £4,500 |
| Full service, percentage of build cost | 7% - 14% |
| Hourly rate for advice | £75 - £160 |
Indicative 2026 UK ranges, not quotations. London and the South East usually sit at the top of each range. Last reviewed: September 2026.
Common questions
- Do I need an architect for an extension?
- Not legally, but you do need drawings good enough for building control and for builders to price the same job. An architect or architectural designer produces those and usually saves more than their fee in avoided rework.
- What does an architect cost in 2026?
- Between £1,800 and £5,000 for planning drawings on a typical domestic extension, or 7 to 14 per cent of build cost for a full service.
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