Basement Conversion Drawings in Richmond upon Thames

Which postcode districts around Richmond upon Thames do we cover for basement conversion work?

Every Richmond upon Thames postcode district we draw in, the stock that dominates it and the authority that validates a basement conversion there. Richmond upon Thames fees below are the statutory England rates for 2026, not basement conversion estimates.

Which Richmond upon Thames neighbourhoods suit a basement conversion best?

Roof pitch, wall build-up and plot depth change every few Richmond upon Thames streets, and each one changes what a basement conversion can achieve at that address.

• Kew (TW9) — a basement conversion in Kew starts from georgian and edwardian villas, and Kew reads as Georgian and Edwardian villas around the green. Georgian houses here already have a vault and a lower-ground floor in TW9. Richmond Council assesses Kew basement conversions against its own Kew character guidance, and the location plan we draw for Kew references Kew Gardens.
• Barnes (SW13) — a basement conversion in Barnes starts from georgian villas, edwardian terraces, and Barnes reads as Georgian and Edwardian village. Georgian houses here already have a vault and a lower-ground floor in SW13. Richmond Council assesses Barnes basement conversions against its own Barnes character guidance, and the location plan we draw for Barnes references Barnes Common.
• East Sheen (SW14) — a basement conversion in East Sheen starts from edwardian villas, 1930s semi-detached, and East Sheen reads as Edwardian villas, 1930s semi-detached. Edwardian houses rarely have a usable cellar in SW14. Richmond Council assesses East Sheen basement conversions against its own East Sheen character guidance, and the location plan we draw for East Sheen references Sheen Lane.
• Teddington (TW11) — a basement conversion in Teddington starts from edwardian villas, victorian terraces, and Teddington reads as Edwardian villas, Victorian terraces. Victorian cellars here convert without planning permission when the footprint and external appearance are unchanged in TW11. Richmond Council assesses Teddington basement conversions against its own Teddington character guidance, and the location plan we draw for Teddington references Teddington Lock.
• Hampton (TW12) — a basement conversion in Hampton starts from georgian villas, edwardian terraces, 1930s semi-detached, and Hampton reads as Georgian and Edwardian villages. Georgian houses here already have a vault and a lower-ground floor in TW12. Richmond Council assesses Hampton basement conversions against its own Hampton character guidance, and the location plan we draw for Hampton references Hampton Court Palace.
• Whitton (TW2) — basement conversion work in Whitton means 1930s semi-detached. Whitton is 1930s semi-detached. 1930s houses were built without cellars throughout TW2. Richmond Council decides the Whitton application, and Whitton station anchors the Whitton location plan.
• Ham (TW10) — a basement conversion in Ham starts from georgian villas, post-war estates, and Ham reads as Georgian common, post-war estate. Georgian houses here already have a vault and a lower-ground floor in TW10. Richmond Council assesses Ham basement conversions against its own Ham character guidance, and the location plan we draw for Ham references Ham Common.

What local planning policy applies to a basement conversion in Richmond upon Thames?

How designation changes a Richmond upon Thames basement conversion: Richmond Council maintains 72 conservation areas, including Hampton Wick, Twickenham Riverside, Barnes Village. Inside any of them a Richmond upon Thames basement conversion cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Twickenham Riverside sets the tone for Richmond upon Thames casework.

Richmond upon Thames permitted development status: there is no borough-wide direction from Richmond Council, so a basement conversion at a SW13 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a Richmond upon Thames sale to argue it later.

What Richmond upon Thames is built from: Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames. Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised. That mix decides the basement conversion route in Richmond upon Thames more than the postcode does, and it is what a Richmond Council case officer reads first. A householder application costs £548 paid to Richmond Council direct, with 8 weeks to a decision once validated.

What happens if a Richmond upon Thames property sits on a boundary?

• Hounslow — the Hounslow boundary runs against Richmond upon Thames, so a basement conversion a street from Richmond upon Thames is decided by Hounslow Council instead. Hounslow runs 30 conservation areas across W3 and its neighbours, which is why basement conversions priced for Richmond upon Thames are re-checked against Hounslow policy whenever the Richmond upon Thames address sits on that edge.
• Kingston upon Thames — cross the Richmond upon Thames boundary and Kingston Council takes the basement conversion instead, applying 22 conservation areas of its own around KT1. We re-price basement conversions at the Richmond upon Thames edge because Kingston upon Thames policy and Richmond upon Thames policy rarely align on basement conversion depth.
• Wandsworth — adjoining Richmond upon Thames, with 45 conservation areas centred on SW8. A basement conversion on the far side of the Richmond upon Thames line is determined by Wandsworth Council, so the Richmond upon Thames quote for basement conversions is checked against Wandsworth guidance before it is issued.
• Hammersmith and Fulham — cross the Richmond upon Thames boundary and Hammersmith & Fulham Council takes the basement conversion instead, applying 45 conservation areas of its own around W6. We re-price basement conversions at the Richmond upon Thames edge because Hammersmith and Fulham policy and Richmond upon Thames policy rarely align on basement conversion depth.

Sources for this Richmond upon Thames basement conversion page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.