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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

KT64HH

St Mark's & Seething Wells

KT64AX

Exeter Court

KT64BW

Crescent Court

KT64DB

Grove Road

KT64EN

St Andrews Square

KT58AE

Cranes Park

KT64BA

Maple Road

KT58DP

Hill Crescent

KT64DE

St Leonards Road

KT13BW

Lower Marsh Lane

KT64BU

Grove Road

KT64JG

St Marys Road

KT65PN

Balaclava Road

KT64PS

St Marks Hill

KT64AT

Maple Road

KT64DR

Maple Road

KT64BP

Falconhurst

KT65PJ

Portsmouth Road

KT58AA

Lamberts Road

KT64HJ

St Mark's & Seething Wells

KT65JL

Endsleigh Gardens

KT64EY

Portsmouth Road

KT64TB

Adelaide Road

KT58BE

Villiers Avenue

KT64EU

Grove Road

KT64PX

St Marks Hill

KT64HD

Catherine Road

KT64BX

Grove Road

KT64QD

St Mark's & Seething Wells

KT64QU

Claremont Road

KT58AN

Cranes Park Crescent

KT64BF

St Leonard's Road

KT64EX

Grove Road

KT64JY

St Mark's & Seething Wells

KT65DG

Siden Mews

KT64DW

Grove Road

KT64EJ

Westfield Road

KT64SU

Adelaide Road

KT64LL

Adelaide Road

KT64TL

Claremont Gardens

KT64BS

Grove Road

KT64PU

St Marks Hill

KT65NE

Copper Gate Mews

KT58BG

Eversley Road

KT64TR

Surbiton Hill Road

KT64ST

Adelaide Road

KT64LS

Church Hill Road

KT13FG

Harlow Gardens

KT64QR

Claremont Road

KT64DL

Cadogan Road

KT64SF

Avenue Elmers

KT64DZ

Dolphin Close

KT64TS

Surbiton Hill Road

KT64RQ

Claremont Road

KT12LR

Rivermead

KT64QS

St Mark's & Seething Wells

KT64AE

Maple Road

KT64SQ

Avenue Elmers

KT58DL

Villiers Close

KT64HS

Portsmouth Road

KT64PW

St Marks Hill

KT64EB

St Andrews Square

KT64BD

Grove Road

KT58BZ

Cranes Park Avenue

KT64AF

Maple Road

KT64PE

Glenbuck Road

KT64AL

Maple Road

KT64JB

Catherine Road

KT64HE

Catherine Road

KT58DH

Minniedale

KT64RB

Station Approach

KT64QW

St James Road

KT65AW

Brighton Road

KT64RT

St Mark's & Seething Wells

KT64DF

Spring Cottages

KT58AG

Cranes Park

KT64RG

Claremont Road

KT64FD

Portsmouth Road

KT65NR

Seething Wells Lane

KT64LP

St Marks Hill

KT64QL

St James Road

KT65BG

Indigo Square

KT64QG

Ravens Close

KT65PP

Brighton Road

KT64AJ

Cleaveland Road

KT64EH

The Mall

KT64LT

Avenue Elmers

KT58DN

Villiers Close

KT58DW

Addison Gardens

KT64EA

St Andrews Square

KT65NS

Akerman Road

KT64HU

Portsmouth Road

KT65PT

Portsmouth Road

KT58BB

Villiers Avenue

KT64HB

Catherine Road

KT12TN

Lingfield Avenue

KT58AU

Cranes Drive

KT64PJ

St Marks Hill

KT64NS

Victoria Road

KT64RN

Claremont Road

Data Sources

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