Rear extension drawings in Richmond upon Thames, £589
Richmond lists Article 4 directions street by street, and says extensions and additions are among the works they control. Before we draw, we check whether your road is on that list.
- £439 drawings + £150 survey (£589 total)
- Article 4 street check
- Heritage statement scoped
What do rear extension drawings cost in Richmond?
We charge £589: £439 for the drawings, forms and submission and £150 for the survey, with no VAT to add. The council’s application fee is paid to the council.
What the Richmond price covers
- A survey of the house, garden levels and the neighbours’ boundaries
- A block plan, floor plans and elevations at the scales the council lists
- Site sections and levels, and a roof plan where the roof changes
- The CIL additional information form and the fire safety statement
- A heritage statement brief when the house is in a conservation area, and submission
| Our drawings and submission paid to us | £439 |
|---|---|
| Measured survey paid to us | £150 |
| Council householder fee paid to the council | £548 |
| Total | £1,137 |
We charge £589 in total. The £548 is paid to the council when the application goes in, and the survey is charged once if you later order building regulations drawings for the same house.
Richmond’s street-by-street Article 4 directions
Richmond’s Article 4 page says homes under a direction need planning permission for changes that would otherwise be permitted, and lists the works as including extensions and additions, new doors and windows, painting and rendering brickwork and removing chimneys. It adds that any home in the borough can be subject to a direction (Richmond Article 4).
Directions are listed by street and conservation area, such as Archway Street, Beards Hill, Bellevue Road and Beresford Avenue. Outside a direction, a two-storey rear extension in any conservation area still falls outside Class A. For example, a single-storey rear extension in a street with no direction may need only a certificate.
What Richmond asks in the pack
Richmond’s local list asks for a block plan, site sections and levels, roof plans, and floor plans and elevations (both existing and proposed) at 1:50 or 1:100, with 1:20 detail for doors and windows in a conservation area (Richmond checklist). A heritage statement is required where an application affects a designated or non-designated heritage asset or its setting, and a CIL additional information form is on the householder list.
For householder cases where the external materials are not altered the council says a Reasonable Exception Statement is generally appropriate; an extension does alter them, so we confirm which fire statement fits.
Decisions and CIL
Richmond decided 923 of 935 householder applications inside 8 weeks in the year to June 2026.
Richmond’s CIL for 2026 is £418.41 per square metre in the higher band and £317.99 in the lower band (Richmond CIL 2026). An extension adding under 100 m² is exempt under regulation 42.
Richmond rear extensions in numbers
- 923 of 935
- Richmond upon Thames Council householder applications decided within 8 weeks in the year to June 2026, out of all it decided (prior approvals not counted). MHCLG live table PS2, planning application statistics by district, July 2025 to June 2026 (GOV.UK)
- Extensions
- Richmond lists extensions and additions among the works needing permission under its Article 4 directions. Article 4 Directions: conservation areas (London Borough of Richmond upon Thames)
- Any home
- Richmond says any home in the borough can be subject to an Article 4 direction. Article 4 Directions: conservation areas (London Borough of Richmond upon Thames)
- 1:50 or 1:100
- Scales for floor plans, elevations and site sections on Richmond’s local list. Local Validation Checklist (London Borough of Richmond upon Thames)
- 1:20
- Scale for new doors, windows and decorative detail in a conservation area on Richmond’s list. Local Validation Checklist (London Borough of Richmond upon Thames)
- £418.41 per m²
- Richmond residential CIL, higher band, for 2026 (£317.99 in the lower band). CIL annual rate summary 2026 (London Borough of Richmond upon Thames)
- £96.97 per m²
- The Mayor of London’s CIL in Richmond (band 1) for permissions granted in 2026, owed only when a scheme is liable for CIL in the first place. Mayoral CIL: annual rate summary for 2026, Table 1 (Greater London Authority)
- 100 m²
- New floor space under which an extension is exempt from CIL. Community Infrastructure Levy Regulations 2010, regulation 42 (legislation.gov.uk)
Richmond rear extension questions
How do I know if my Richmond street has an Article 4 direction?
Richmond lists them by street and conservation area. We check the list for your address before quoting.
Do I need a heritage statement?
Richmond asks for one where the application affects a designated or non-designated heritage asset or its setting, which includes houses in conservation areas.
What fire statement does a Richmond extension need?
Richmond wants a Fire Safety Strategy or a Reasonable Exception Statement. Which one fits depends on whether the external materials change.
Will I pay CIL?
An extension adding under 100 m² is exempt, though the form still goes in.
Other services people book with this one
- Prior approval for a larger home extension£349 drawings + £150 survey (£499 total)
- Lawful Development Certificate drawings£389 drawings + £150 survey (£539 total)
- Building regulations drawings£479 drawings + £150 survey (£629 total)
- Side return extension drawings£479 drawings + £150 survey (£629 total)
- Party wall notice£39
Price your Richmond extension
Send the address and a sketch. We check the street and reply with a fixed price.