Richmond upon Thames, London
Building regulations drawings in Richmond upon Thames
Building regulations drawings in Richmond upon Thames start at £845 including VAT. The borough has a very large number of conservation areas, so the technical details for windows, roofs and insulation often have to satisfy a conservation officer as well as building control.
From £845 (VAT included)
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- Fixed fees, VAT included
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Richmond upon Thames guidance and where it meets the technical set
The borough's development plan is the Richmond Local Plan 2024-2039, adopted in 2,025. Three supplementary documents shape most household projects: the House Extensions and External Alterations SPD, the Design Quality SPD and the Residential Development Standards SPD.
The first of those is the one a householder meets. It is a planning document about form and appearance, and it is where an application for a rear or side extension, a loft or a change to the outside of the house is judged. Building regulations drawings answer a separate question: will the building stand, keep warm, resist fire and drain properly?
The two meet in the detail. A planning officer may want a slim roof edge and a traditional window pattern, while the Building Regulations need enough insulation depth and a window that meets the energy rules. We settle the build-up on the drawing so that both answers hold, and the builder is not asked to choose on site.
A new local plan is a good moment to check older advice. We confirm which documents are current before we draw, so the technical set follows what the council now uses.

Local figures for Richmond upon Thames
| Measure | Value | Period | Source |
|---|---|---|---|
| Local plan | Richmond Local Plan 2024-2039 | — | richmond.gov.uk |
| Supplementary planning document | House Extensions and External Alterations SPD | 2015 | richmond.gov.uk |
| Conservation areas | 85 named conservation areas published by the council | — | planning.data.gov.uk |
| Listed building entries | 819 list entries (Historic England, within the LPA boundary) | — | planning.data.gov.uk |
| Registered parks and gardens | 16 registered parks and gardens intersecting the LPA boundary (Historic England) | — | planning.data.gov.uk |
| Owner-occupied households | 62.4 % of households owner-occupied (owned outright or with mortgage/loan) | Census 2021 | nomisweb.co.uk |
| Householder applications granted | 83.3 % | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications decided in time | 98.3 % decided within 8 weeks or an agreed extended period | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Larger home extension prior approvals granted | 78 decisions | 2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026) | assets.publishing.service.gov.uk |
| Building Regulations 2010 reg 14A(6) | Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing | — | legislation.gov.uk |
| Building Regulations 2010 reg 16(1) | Give notice of intention to start; work may start 2 days after the notice | — | legislation.gov.uk |
| Approved Document L Vol 1 2026, p.2 | AD L 2026 (Home Energy Model) takes effect 24 Mar 2027 for non-higher-risk work | — | gov.uk |
A blank value means the figure has not been published, not that there are none. Check your own address with the council.
Building regulations, layer by layer
The Approved Documents that shape most house projects, from structure to the application itself.
- A · Part A: structure
- Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments
- B · Part B: fire safety
- All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604
- C · Part L: insulation
- New elements in existing dwellings, limiting U-values W/(m²·K): roof 0.15, wall 0.18, floor 0.18, windows 1.4 (or WER Band B), doors 1.4
- D · Part K: stairs
- 2.0 m clear headroom over stairs
- E · Full plans application
- Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing
Heritage cover in Richmond upon Thames and what it means on site
Richmond upon Thames has 85 conservation areas and Historic England lists 819 entries. The borough also contains 16 registered parks and gardens, 6 scheduled monuments and 1 World Heritage Site.
None of this changes the Building Regulations, which apply on every street. It changes the way we meet them. Inside a conservation area, replacing windows for better thermal performance, adding internal wall insulation or recovering a roof are all judged for their effect on character, so we draw the thermal build-up inside the existing line instead of outside it where we can.
On a listed house the stakes are higher. Changes to the fabric, even invisible ones, can need listed building consent that is separate from both planning and building control. We flag early where a technical choice would trigger it, so you are not caught between consents.
Owner-occupied houses, large plots and ambitious projects
About 62.4 per cent of households own their home and 59.8 per cent live in a house or bungalow. Owners with houses to improve generate a steady flow of applications: the council decided 1,302 householder applications in its latest published year.
Larger schemes go beyond a simple rear extension. A big loft or a two-storey side addition raises structure and fire questions that the Approved Documents answer in detail. We coordinate with your engineer so the beam sizes and the foundation depth on our sheets match their calculations.
How quickly Richmond decides, and why it still pays to prepare early
The council granted 83.3 per cent of householder applications and decided 98.3 per cent on time. It also granted 78 larger home extension prior approvals and refused 30.
Those figures show a council that moves quickly, so the technical drawings can become the slower part. We start them once the design is settled, aiming to finish them as the planning decision lands.
Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing. We submit full plans, so the building control decision can be in hand before your builder starts.
Notices, energy rules and what the set contains
A house extended in earlier phases may have each phase built to a different standard. We record what exists before showing what is new, so the examiner sees how new work ties into old fabric and which parts are already compliant.
Give notice of intention to start; work may start 2 days after the notice. Our handover pack lists the notice dates for your builder, because a missed notice can delay the completion certificate.
Energy rules are moving: AD L 2026 (Home Energy Model) takes effect 24 Mar 2027 for non-higher-risk work. For a heritage house, where insulation is often the hardest thing to place, we say which edition the set follows.
A Richmond set normally includes foundation and floor plans, sections, wall, floor and roof build-ups, drainage and a materials specification, and a second chartered technologist checks every sheet. We ask for the planning decision or certificate and any survey you hold.
Related services and neighbouring boroughs
Start with planning drawings in Richmond upon Thames if the design is not yet agreed, and structural calculations in Richmond upon Thames for the engineer's figures. For the whole borough, see architectural drawings in Richmond upon Thames.
Over the boundary, building regulations drawings in Hounslow, in Kingston upon Thames and in Wandsworth each follow their own council's guidance.
What you receive


Related pages
Other services in Richmond upon Thames
Questions
How many conservation areas does Richmond upon Thames have?
The council publishes 85. They do not change the Building Regulations, but they affect which windows, insulation and roof details are acceptable.
Which Richmond guidance covers extensions?
The House Extensions and External Alterations SPD, under the Richmond Local Plan 2024-2039. The technical drawings follow the Approved Documents and are kept consistent with the planning set.
How much do building regulations drawings cost in Richmond upon Thames?
From £845 including VAT, fixed up front. Building control charges are separate.
Do I need both listed building consent and building regulations approval?
For a listed house, usually yes. They are separate approvals with separate drawings, and we tell you early which technical choices would need consent.
Sources and dates
- richmond.gov.uk, retrieved
- richmond.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- nomisweb.co.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- legislation.gov.uk, retrieved
- legislation.gov.uk, retrieved
- gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- nomisweb.co.uk, retrieved
- gov.uk, retrieved
- gov.uk, retrieved
- gov.uk, retrieved
- gov.uk, retrieved
- Contains public sector information licensed under the Open Government Licence v3.0.
- Contains OS data © Crown copyright and database right 2026.
- Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
- Contains Historic England data © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026.

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