Where in Worcester Park does a house extensions actually get determined?
Every Worcester Park postcode district we draw in, the stock that dominates
it and the authority that validates a house extensions there. Worcester Park fees below are the
statutory England rates for 2026, not house extensions estimates.
| Postcode | Area | Dominant stock | What it means for a house extensions |
|---|
| KT4 | Worcester Park | 1930s semi-detached | An extension at a KT4 address is determined by whichever of three councils the plot actually stands in. Sutton covers most of Worcester Park and applies its own local plan; Kingston upon Thames takes the Old Malden side; and Epsom and Ewell Borough Council covers the Surrey fringe to the south. Their householder policies on depth, height and boundary treatment are written independently of one another, so the same rear extension can be read two ways a few streets apart. |
| SM1 | Sutton | Edwardian terraces, 1930s semi-detached | Neighbouring Sutton, where house extensions work is handled by the same Sutton Council case officers. |
| SM5 | Carshalton | Victorian terraces, Georgian villas | Neighbouring Carshalton, where house extensions work is handled by the same Sutton Council case officers. |
| SM2 | Cheam | Georgian villas, 1930s semi-detached | Neighbouring Cheam, where house extensions work is handled by the same Sutton Council case officers. |
| SM6 | Wallington | Edwardian villas, 1930s semi-detached | Neighbouring Wallington, where house extensions work is handled by the same Sutton Council case officers. |
| SM2 | Belmont | 1930s semi-detached | Neighbouring Belmont, where house extensions work is handled by the same Sutton Council case officers. |
| SM6 | Hackbridge | Edwardian terraces, post-war | Neighbouring Hackbridge, where house extensions work is handled by the same Sutton Council case officers. |
Which Worcester Park neighbourhoods suit a house extensions best?
Roof pitch, wall build-up and plot depth change every few Worcester Park
streets, and each one changes what a house extensions can achieve at that address.
- Worcester Park (KT4) — house extensions work in Worcester Park means 1930s semi-detached. Worcester Park is 1930s semi-detached. 1930s semis here have the deepest rear gardens in the area throughout KT4. Sutton Council decides the Worcester Park application, and Worcester Park station anchors the Worcester Park location plan.
- Near Worcester Park: Sutton (SM1) — house extensions work in Sutton means edwardian terraces, 1930s semi-detached. Sutton is Edwardian centre, 1930s residential. Edwardian plots here are wider throughout SM1. Sutton Council decides the Sutton application, and Sutton High Street anchors the Sutton location plan.
- Near Worcester Park: Carshalton (SM5) — house extensions work in Carshalton means victorian terraces, georgian villas. Carshalton is Victorian and Georgian village. Georgian rear elevations here are usually the listed or locally listed face of the building throughout SM5. Sutton Council decides the Carshalton application, and Carshalton Ponds anchors the Carshalton location plan.
- Near Worcester Park: Cheam (SM2, SM3) — house extensions work in Cheam means georgian villas, 1930s semi-detached. Cheam is Georgian village, 1930s semi-detached. Georgian rear elevations here are usually the listed or locally listed face of the building throughout SM2. Sutton Council decides the Cheam application, and Cheam Village anchors the Cheam location plan.
- Near Worcester Park: Wallington (SM6) — house extensions work in Wallington means edwardian villas, 1930s semi-detached. Wallington is Edwardian villas, 1930s semi-detached. Edwardian plots here are wider throughout SM6. Sutton Council decides the Wallington application, and Wallington station anchors the Wallington location plan.
- Near Worcester Park: Belmont (SM2) — 1930s semi-detached defines Belmont, where 1930s semi-detached set what a house extensions can do. 1930s semis here have the deepest rear gardens in the area across SM2. Any Belmont house extensions is validated by Sutton Council, with Belmont station the usual Belmont reference point on the site plan.
- Near Worcester Park: Hackbridge (SM6) — a house extensions in Hackbridge starts from edwardian terraces, post-war, and Hackbridge reads as Edwardian terraces, post-war. Edwardian plots here are wider in SM6. Sutton Council assesses Hackbridge house extensions against its own Hackbridge character guidance, and the location plan we draw for Hackbridge references Hackbridge station.
Does Worcester Park planning policy restrict a house extensions?
Conservation areas covering Worcester Park: Sutton Council runs 17, and Sutton Central, Carshalton Village, Beddington Park are the ones Worcester Park owners meet most. A house extensions inside a Worcester Park conservation area loses permitted development, so the Worcester Park submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Carshalton Village a house extensions is judged on the street elevation first.
No blanket Article 4 over Worcester Park: Sutton Council has not withdrawn permitted development across Worcester Park, so a house extensions outside a Worcester Park conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a KT4 owner wants on file.
The building fabric around Worcester Park: 1930s semi-detached dominates; Edwardian terraces and villas in Sutton central; Victorian cottages in Carshalton; post-war in Hackbridge. Outer south London suburban; generally permissive; Carshalton and Cheam conservation areas add heritage in pockets. A house extensions in Worcester Park is scoped against that stock first.
Which neighbouring authorities border Worcester Park?
- Merton — adjoining Worcester Park, with 28 conservation areas centred on SW16. A house extensions on the far side of the Worcester Park line is determined by Merton Council, so the Worcester Park quote for house extensions is checked against Merton guidance before it is issued.
- Croydon — adjoining Worcester Park, with 24 conservation areas centred on CR0. A house extensions on the far side of the Worcester Park line is determined by Croydon Council, so the Worcester Park quote for house extensions is checked against Croydon guidance before it is issued.
- Kingston upon Thames — the Kingston upon Thames boundary runs against Sutton, so a house extensions a street from Worcester Park is decided by Kingston Council instead. Kingston upon Thames runs 22 conservation areas across KT1 and its neighbours, which is why house extensions priced for Worcester Park are re-checked against Kingston upon Thames policy whenever the Worcester Park address sits on that edge.
Sources for this Worcester Park house extensions 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.
