Property profile

141 Seaforth Avenue

Map showing 141, Seaforth Avenue, New Malden

Estimated sale price

£920,000

Detached sold in West Barnes

The box shows the middle 50% of detached sale prices, the whiskers show the 5th to 95th percentile, and the marker shows this property's estimated price.

Half of similar homes sold within the box; most sold within the wider line.

An indicative model estimate, not a survey or formal valuation.

This property vs market

Last sold29 Jun 2021
£935,000Change since last sale: −£14,000 (−1.5%)
Annualised change
−0.3% per yearMerton annualised change (detached) since 2021: +1.8% per yearThis property underperformed the market
Price per sq ftLocal median £512 per sq ft
£516 per sq ftEstimate vs local median: +£4 per sq ft (+0.7%)
Local sold pricesMedian for detached in West Barnes
£1,093,750Estimate vs local median: −£173,000 (−16%)
How this estimate is calculated

We estimate what this property could sell for today using the information available. It is a guide, and the final sale price may be higher or lower.

Property facts

EPC ratingC / B
Floor area166 m² / 1,787 sq ft
Property typeHouse / Detached
Habitable rooms8
EPC inspection28 Jul 2020

Sales history

DatePriceChange
29 Jun 2021£935,000+70%
02 Dec 2016£550,000-

Local market

Property prices in West Barnes

Median price£640,000
Price per sq ft£606
Sales (last 12 months)106
Typical range (middle 50%)£481K – £799K

Based on 106 recent sales, the median property price is £640,000 (about £606 per square foot) in West Barnes area, with individual transactions ranging from £180,000 up to £1,577,500.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in West Barnes over the last year.
TypeSalesMedian£/sq ft
Detached2£1,093,751£512
Semi-Detached19£840,000£579
Terraced54£695,000£622
Flats31£390,000£606

10-year price trendmedian sale price in West Barnes

Sale price

Ten year median sale price trend for each property type in West Barnes.
YearDetachedFlatsSemi-DetachedTerraced
2016£900,000£247,500£750,000£581,000
2017£1,015,000£350,000£670,125£595,000
2018£832,500£362,500£705,000£577,500
2019£991,000£291,800£642,500£575,000
2020£720,000£343,063£685,000£610,000
2021£947,500£314,250£709,000£630,000
2022£797,500£385,000£815,500£682,500
2023£790,000£320,000£800,000£660,000
2024£738,000£330,000£725,000£718,250
2025£1,400,000£370,625£840,000£694,000
2026£610,001£390,000£715,000£752,500
Ten year median sale price trend for each property type in West Barnes.

Price per sq ft

Ten year median sale price per square foot trend for each property type in West Barnes.
YearDetachedFlatsSemi-DetachedTerraced
2016£486£704£527£538
2017£734£668£523£534
2018£654£563£539£528
2019£600£690£468£531
2020£625£542£520£527
2021£660£569£599£575
2022£629£610£649£606
2023£448£594£631£586
2024£668£609£632£619
2025£660£625£633£628
2026£644£590£531£626
Ten year median sale price per square foot trend for each property type in West Barnes.

Price distribution by property typelast 12 months

Price distribution by property type for West Barnes in the last year.

Recent sales

There were 50+ recent sold properties in the last 18 months near KT3 6JW.

Recent sold properties in the last 18 months near KT3 6JW
DateAddressTypeTenurePriceMap
15 Jan 2026222, Seaforth Avenue, New Malden, KT3 6JWTerracedFreehold£600,000
16 May 202592, Claremont Avenue, New Malden, KT3 6QWTerracedFreehold£595,000
26 Feb 2025118, Claremont Avenue, New Malden, KT3 6QWSemi-DetachedFreehold£640,000
20 Mar 2026157, Seaforth Avenue, New Malden, KT3 6JXTerracedFreehold£530,000
23 Jan 2026130, Seaforth Avenue, New Malden, KT3 6JNTerracedFreehold£775,000

Other properties at this postcode

AddressTenureFloor areaLast sale
131, Seaforth Avenue, New MaldenFreehold154 m²£347,500 (2009)
139, Seaforth Avenue, New MaldenFreehold95 m²£800,000 (2021)
143 Seaforth Avenue, New MaldenFreehold123 m²£730,000 (2024)
149, Seaforth Avenue, New MaldenFreehold93 m²£385,000 (2013)
151, Seaforth Avenue, New MaldenFreehold98 m²£685,000 (2020)
180, Seaforth Avenue, New Malden-97 m²-
188A, Seaforth Avenue, New MaldenLeasehold46 m²£305,000 (2017)
188B, Seaforth Avenue, New MaldenLeasehold42 m²£65,500 (1998)
192, Seaforth Avenue, New MaldenFreehold78 m²£490,000 (2018)
194, Seaforth Avenue, New MaldenFreehold122 m²£590,000 (2018)

Area insights for KT3 6JW

Full area profile →

Overview

Postcode KT3 6JW is located in a major urban area, within the West Barnes ward of Merton in the London region, and forms part of the West Barnes area. It has very low deprivation and very low crime levels, with around 25 crimes per 1,000 residents per year, about 81% below the London average of 130 per 1,000. The average income per household in West Barnes is £93,237 per year. The nearest station is Motspur Park, about 0.1 miles away. There are 8 primary and 2 secondary schools in the area. There is 1 park nearby, the closest large park is Sir Joseph Hood Memorial Playing Fields.

Crime rate
1/10
Crimes per 1k residents
25
Deprivation level
1/10
Income level
9/10
Social housing
5.6%
Connectivity
4/10
Flood Risk
Low
Noise Level
High

Deprivation level

1/10

West Barnes has a very low level of deprivation, ranked at position 31,001 out of 32,844 areas in the United Kingdom, placing it within the bottom 6% least deprived areas in England.

Crime level

1/10

West Barnes has a very low crime rate, with approximately 25 reported incidents per 1,000 population each year.

Social housing

5.6%

Approximately 5.6% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 5.3% of dwellings are socially rented.

Income level

9/10

The average income per household in West Barnes is £93,237 per year.

Noise Level

High

High noise level (70.0-74.9 dB) from rail, approximately 112 ft away from KT3 6JW.

Flood risk

Low

West Barnes near KT3 6JW has low flood risk (between 0.1% and 1% chance of a flood each year) from rivers and sea.

Transport

4/10

The nearest station is Motspur Park located about 0.1 miles away. There are 3 stations nearby.

Nearby public transport stations for KT3 6JW
DistanceZoneNameLinesDirections
0.1 mi

4

Motspur Park

South Western

Walking directions to Motspur Park
0.9 mi

4

New Malden

South Western

Walking directions to New Malden
1 mi

4

Raynes Park

South Western

Walking directions to Raynes Park

Parks

Nearby parks and green spaces for KT3 6JW
DistanceNameSizeDirections
0.3 miSir Joseph Hood Memorial Playing FieldsLargeWalking directions to Sir Joseph Hood Memorial Playing Fields

Area Profile

Population
326
Population density
7,482.8 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
10.79(-65%)
Anti-social behaviour
10.22(-62%)
Vehicle crime
4.54(-52%)
Burglary
2.84(-48%)
Other theft
1.7(-85%)
London average

Demographics

Ethnic groups

British
205
63.47%
Other White
37
11.46%
Indian
14
4.33%
Irish
14
4.33%
Other Asian
12
3.72%
Total population: 323

Economics

Education (age 16+)

Level 4+ (Degree)
136
52.92%
Level 2 (GCSEs 9-4)
34
13.23%
No qualifications
27
10.51%
Level 3 (A level)
27
10.51%
Level 1 (GCSEs 3-1)
21
8.17%
Total 16+ residents: 257

Housing

Housing tenure

Owns with a mortgage
60
47.62%
Owns outright
44
34.92%
Private landlord or letting agency
14
11.11%
Other social rented
7
5.56%
Shared ownership
1
0.79%
Total households: 126

Schools

In the KT3 6JW postcode area, located within West Barnes, there are 8 primary and 2 secondary schools in close proximity.

Nearby primary and secondary schools for KT3 6JW
DistancePhaseNameTypeRating
0.1 miNot applicableBlossom House SchoolOther independent special school

Outstanding

0.3 miPrimarySacred Heart Catholic Primary SchoolVoluntary aided school

Good

0.4 miSecondaryCoombe Boys' SchoolAcademy converter

Good

Local amenities

10 nearby supermarkets & convenience stores within mi of KT3 6JW

Nearby supermarkets & convenience stores for KT3 6JW
DistanceNameAddressDirections
0.1 miSooq - Arabic Market343-345 West Barnes Lane, New Malden, KT3 6JFWalking directions to Sooq - Arabic Market
0.1 miEcklee341-345 West Barnes Lane, New Malden, KT3 6JFWalking directions to Ecklee
0.1 miMillennium StoresMarina Avenue, Merton, KT3 6NBWalking directions to Millennium Stores
0.2 miJPS Food & WineMarina Avenue, Merton, KT3 6NQWalking directions to JPS Food & Wine
0.3 miBurlington Mini MarketMerton, KT3 4NWWalking directions to Burlington Mini Market

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 01/08/2026. Read more about how our statistics are calculated.