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St Mark's & Seething Wells

Interactive map displaying St Mark's & Seething Wells

About

St Mark's & Seething Wells is a residential ward located along the Thames in southwest London. The area is characterised by its mix of Edwardian and Victorian terraced housing, alongside modern apartment developments. Its western boundary is defined by the Hogsmill River, which flows into the Thames. The ward includes the largely industrial area of Thames Side, containing waste transfer stations and a water treatment works.

A distinctive feature is the historic Seething Wells waterworks, with its preserved filter beds now forming a secluded, biodiverse sanctuary for wildlife. The Thames Path national trail runs through the ward, providing public access to the riverfront. Surbiton Lagoon, a popular open-air swimming pool, is a key local leisure facility situated near the waterfront.

Area overview

On average St Mark's & Seething Wells has moderate deprivation and moderate crime levels, with around 86 crimes per 1,000 residents per year. Approximately 6.4% of homes in this area are social housing provided by a local council or housing association. The average income per household in St Mark's & Seething Wells is £86,564 per year. There are 3 schools in St Mark's & Seething Wells: 2 primary (1 Outstanding and 1 Good) and 1 secondary (0 Outstanding and 1 Good). On average most houses in area has average public transport connectivity. St Mark's & Seething Wells is home to around 11,809 people, with a population density of about 6,506.3 per km2.

Crime rate
4/10
Crimes per 1k residents
86
Deprivation level
3/10
Income level
8/10
Social housing
6.4%
Connectivity
6/10

Area Profile

St Mark's & Seething Wells Population
11,809
Population density
6,506.3 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
32.52(+5%)
Anti-social behaviour
28.37(+6%)
Shoplifting
11.09(+11%)
Vehicle crime
10.33(+10%)
Other theft
9.74(-15%)
London average

Demographics

Ethnic groups

British
6,780
57.41%
Other White
1,933
16.37%
Other Asian
463
3.92%
Indian
435
3.68%
Other
320
2.71%
Total population: 11,810

Economics

Education (age 16+)

Level 4 qualifications or above
6,323
62.11%
Level 3 (A level)
1,696
16.66%
No qualifications
700
6.88%
Level 2 (GCSEs 9-4)
693
6.81%
Level 1 (GCSEs 3-1)
378
3.71%
Total 16+ residents: 10,181

Housing

Housing tenure

Private landlord or letting agency
2,157
40.39%
Owns with a mortgage
1,546
28.95%
Owns outright
1,153
21.59%
Other social rented
233
4.36%
Other forms of private rent
122
2.28%
Total households: 5,341

Property prices in St Mark's & Seething Wells

Based on 166 recent sales, the median property price is £445,500 in St Mark's & Seething Wells area, with individual transactions ranging from £138,000 up to £2,150,000.

Price distribution per property type (last year)

Price distribution by property type for St Mark's & Seething Wells in the last year.

Median sale price and percentiles per property type (last year)

Median sale price, median price per square metre, sales count, and percentile information for each property type in St Mark's & Seething Wells over the last year.
TypeSalesMedianMedian £/m²
Detached2£1,722,500£6,632
Flats126£407,900£6,704
Semi-Detached22£842,601£8,014
Terraced16£710,000£8,289

10 years median price trend in St Mark's & Seething Wells

Ten year median sale price trend for each property type in St Mark's & Seething Wells.

All postcodes in St Mark's & Seething Wells

KT64NR

Victoria Road

KT13FE

Lower Marsh Lane

KT64SG

Avenue Elmers

KT65NY

Calendar Mews

KT65RY

Balaclava Road

KT64NG

Victoria Road

KT64QN

St James Road

KT64HP

Portsmouth Road

KT64UD

Church Hill Road

KT65PQ

Brighton Road

KT64TP

Surbiton Hill Road

KT64LW

St Marks Hill

KT58BY

Cranes Park Avenue

KT58AS

Cranes Park

KT64AG

Maple Road

KT64RL

St Mark's & Seething Wells

KT64BZ

Grove Road

KT64LD

Victoria Road

KT64BY

Grove Road

KT64EZ

St Andrews Square

KT65PL

Brighton Road

KT58BS

Cranes Park Avenue

KT12LH

Uxbridge Road

KT64AS

Maple Road

KT64SY

Adelaide Road

KT64QP

St James Road

KT13BJ

Lower Marsh Lane

KT64JZ

Victoria Road

KT64AQ

St Mark's & Seething Wells

KT64FB

St Mark's & Seething Wells

KT64NX

St Mark's & Seething Wells

KT64AY

Maple Road

KT12LJ

Uxbridge Road

KT64AA

Maple Road

KT64DA

Grove Road

KT64TU

Surbiton Hill Road

KT64TN

Claremont Gardens

KT65NF

Brighton Road

KT58AZ

Lamberts Road

KT64TH

Avenue Elmers

KT64SH

Avenue Elmers

KT64RS

Avenue Elmers

KT64AU

Maple Road

KT64TE

Adelaide Road

KT64HR

Portsmouth Road

KT64LH

St Mark's & Seething Wells

KT64RX

Claremont Road

KT64HG

Portsmouth Road

KT64DQ

Cadogan Road

KT64HT

Portsmouth Road

KT64UE

Winston House

KT64NW

St Mark's & Seething Wells

KT64TG

Adelaide Road

KT65PS

Brighton Road

KT64PL

St Marks Hill

KT64AP

Maple Road

KT58BL

Cheyne Hill

KT64RP

Maple Road

KT64BQ

St Mark's & Seething Wells

KT58AF

Cranes Park

KT64BN

The Crescent

KT13FS

Harlow Gardens

KT65NA

Seething Wells Lane

KT65DN

Victoria Avenue

KT64AR

Maple Road

KT58DJ

Addison Gardens

KT64EP

St Marys Road

KT64SP

Avenue Elmers

KT64JT

Victoria Road

KT64HY

Portsmouth Road

KT64DU

St Philips Road

KT12LL

Uxbridge Road

KT64SJ

Avenue Elmers

KT58DS

Ferguson Avenue

KT64DD

Grove Road

KT58BN

Cheyne Hill

KT65DW

Victoria Avenue

KT58AB

Cranes Park

KT64BE

Grove Road

KT58BX

Cranes Park Avenue

KT58AD

Cranes Park

KT64TD

Adelaide Road

KT58BH

Villiers Avenue

KT64HZ

Portsmouth Road

KT58BD

Villiers Avenue

KT64EF

St Andrews Square

KT65PW

Balaclava Road

KT12TJ

Beaufort Road

KT64TW

Surbiton Hill Road

KT64RH

Claremont Road

KT64HQ

Portsmouth Road

KT64JL

Victoria Road

KT64LN

Adelaide Road

KT64RW

Claremont Road

KT64DH

Cadogan Road

KT58AJ

Cranes Drive

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 01/07/2026.