Property profile

21 Lock Chase

Map showing 21 Lock Chase, London

Property Price
150k200k250k300k400k500k750k1.5M

Estimated sale price

£1,480,000

Detached sold in Blackheath

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 sold14 Apr 2026
£1,695,000Change since last sale: −£216,000 (−13%)
Annualised change
−32% per yearLewisham annualised change (detached) since 2026: 0.0% per yearThis property underperformed the market
Price per sq ftLocal median £864 per sq ft
£838 per sq ftEstimate vs local median: −£26 per sq ft (−3.0%)
Local sold pricesMedian for detached in Blackheath
£1,215,000Estimate vs local median: +£264,000 (+22%)
How this estimate is calculated

Area360's automated valuation uses available property details, recorded sales and local market data to estimate a sale price. This automated estimate is a guide, not a survey, mortgage valuation or formal valuation. See the valuation methodology and limitations.

Estimate calculated .

Property facts

Property typeHouse / Detached
TenureFreehold
Construction period1930-1949
Floor area164 m² / 1,765 sq ft
Rooms8 habitable / 8 heated
EPC ratingE
EPC inspection11 Nov 2025

Sales history

DatePriceChange
14 Apr 2026£1,695,000-

Local market

Property prices in Blackheath

Median price£478,000
Price per sq ft£648
Sales (last 12 months)143
Typical range (middle 50%)£355K – £795K

Based on 143 recent sales, the median property price is £478,000 (about £648 per square foot) in Blackheath area, with individual transactions ranging from £177,500 up to £3,450,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Blackheath over the last year.
TypeSalesMedian£/sq ft
Detached2£1,215,000£864
Semi-Detached10£947,500£725
Terraced30£943,500£760
Flats101£400,000£591

10-year price trendmedian sale price in Blackheath

Sale price

Ten year median sale price trend for each property type in Blackheath.
YearDetachedFlatsSemi-DetachedTerraced
2016£3,010,000£338,250£845,000£770,000
2017£685,000£400,000£875,000£732,500
2018£1,437,500£396,000£1,325,000£850,000
2019£1,650,000£455,000£718,000£689,500
2020£1,110,000£415,000£1,308,500£767,000
2021£1,500,000£405,500£980,000£805,000
2022£1,200,000£419,000£875,000£790,000
2023£1,635,000£430,000£1,276,667£695,000
2024£1,043,500£430,000£852,500£777,500
2025£1,650,000£445,000£1,212,500£890,000
2026£1,695,000£390,000£837,500£935,000
Ten year median sale price trend for each property type in Blackheath.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Blackheath.
YearDetachedFlatsSemi-DetachedTerraced
2016£891£590£596£630
2017£736£603£629£658
2018£654£579£603£701
2019£738£579£530£611
2020£843£600£667£663
2021£732£604£708£742
2022£735£619£759£750
2023£878£645£705£709
2024£876£649£725£706
2025£1,006£643£695£719
2026£960£572£707£762
Ten year median sale price per square foot trend for each property type in Blackheath.

Price distribution by property typelast 12 months

Price distribution by property type for Blackheath in the last year.

Recent sales

There were 50+ recent sold properties in the last 18 months near SE3 9HB.

Recent sold properties in the last 18 months near SE3 9HB
DateAddressTypeTenurePriceMap
14 Apr 202621, Lock Chase, London, SE3 9HBDetachedFreehold£1,695,000
30 May 202572, Lock Chase, London, SE3 9HAFlatsLeasehold£675,000
28 Mar 202530, Lock Chase, London, SE3 9HAFlatsLeasehold£540,350
12 May 2026103, Quentin Road, London, SE13 5DGTerracedFreehold£1,250,000
29 Jan 202679, Quentin Road, London, SE13 5DGTerracedFreehold£1,013,000

Other properties at this postcode

AddressTenureFloor areaLast sale
5, Lock Chase, LondonLeasehold99 m²£695,000 (2020)
7, Lock Chase, LondonLeasehold83 m²£675,000 (2020)
9 Lock Chase, LondonLeasehold98 m²£745,000 (2024)
13 Lock Chase, LondonLeasehold99 m²£800,000 (2024)
15, Lock Chase, LondonLeasehold95 m²£377,000 (2010)
23, Lock Chase, LondonLeasehold77 m²£730,000 (2016)
27, Lock Chase, LondonLeasehold89 m²£651,500 (2021)
31 Lock Chase, London-89 m²-
33 Lock Chase, London-86 m²-
35, Lock Chase, LondonLeasehold87 m²£10,000 (1997)

Area insights for SE3 9HB

Full area profile →

Overview

Postcode SE3 9HB is located in a major urban area, within the Blackheath ward of Lewisham in the London region, and forms part of the Blackheath Village area. It has low deprivation and low crime levels, with around 40.4 crimes per 1,000 residents per year, about 69% below the London average of 130 per 1,000. The average income per household in Blackheath Village is £85,038 per year. The nearest station is Blackheath, about 0.2 miles away. There are 12 primary and 4 secondary schools in the area. There is 1 park nearby, the closest medium park is Manor House Gardens.

Crime rate
3/10
Crimes per 1k residents
40
Deprivation level
3/10
Income level
8/10
Social housing
2.7%
Connectivity
7/10
Flood Risk
No risk
Noise Level
No noise

Deprivation level

3/10

Blackheath Village has a low level of deprivation, ranked at position 25,828 out of 32,844 areas in the United Kingdom, placing it within the bottom 21% least deprived areas in England.

Crime level

3/10

Blackheath Village has a low crime rate, with approximately 40.4 reported incidents per 1,000 population each year.

Social housing

2.7%

Approximately 2.7% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 22.1% of dwellings are socially rented.

Income level

8/10

The average income per household in Blackheath Village is £85,038 per year.

Noise Level

No noise

No significant noise sources from railways or roads near SE3 9HB.

Flood risk

No risk

Blackheath Village near SE3 9HB has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.

Transport

7/10

The nearest station is Blackheath located about 0.2 miles away. There are 5 stations nearby.

Nearby public transport stations for SE3 9HB
DistanceZoneNameLinesDirections
0.3 mi

3

Blackheath

Southeastern

Walking directions to Blackheath
0.8 mi

3

Hither Green

Southeastern

Walking directions to Hither Green
0.9 mi

3

Kidbrooke

Southeastern

Walking directions to Kidbrooke

Parks

Nearby parks and green spaces for SE3 9HB
DistanceNameSizeDirections
0.4 miManor House GardensMediumWalking directions to Manor House Gardens

Area Profile

Population
225
Population density
4,729.2 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
12.84(-59%)
Vehicle crime
8.34(-11%)
Anti-social behaviour
5.78(-78%)
Public order
3.21(-53%)
Robbery
2.57(-28%)
London average

Demographics

Ethnic groups

British
153
67.7%
Other White
36
15.93%
Chinese
11
4.87%
Pakistani
6
2.65%
White and Asian (mixed)
6
2.65%
Total population: 226

Economics

Education (age 16+)

Level 4+ (Degree)
137
72.11%
Level 3 (A level)
20
10.53%
No qualifications
12
6.32%
Level 2 (GCSEs 9-4)
9
4.74%
Level 1 (GCSEs 3-1)
7
3.68%
Total 16+ residents: 190

Housing

Housing tenure

Owns outright
56
50.45%
Owns with a mortgage
27
24.32%
Private landlord or letting agency
21
18.92%
Other forms of private rent
4
3.6%
Social rents from council
2
1.8%
Total households: 111

Schools

In the SE3 9HB postcode area, located within Blackheath Village, there are 12 primary and 4 secondary schools in close proximity.

Nearby primary and secondary schools for SE3 9HB
DistancePhaseNameTypeRating
0.2 miPrimarySt Margaret's Lee CofE Primary SchoolVoluntary aided school

Outstanding

0.3 miPrimaryJohn Ball Primary SchoolCommunity school

Outstanding

0.3 miAll-throughSt Matthew AcademyAcademy sponsor led

Good

Local amenities

15 nearby supermarkets & convenience stores within mi of SE3 9HB

Nearby supermarkets & convenience stores for SE3 9HB
DistanceNameAddressDirections
0.2 miM&S Simply FoodBoone Street, Lewisham, SE13 5PQWalking directions to M&S Simply Food
0.3 miCostcutter183-185 Lee High Road, London, SE13 5PQWalking directions to Costcutter
0.3 miBrandram Road Corner ShopBrandram Road, Lewisham, SE13 5RXWalking directions to Brandram Road Corner Shop
0.3 miShepherd Foods7-9 Blackheath Village, Blackheath, London, SE3 9LAWalking directions to Shepherd Foods
0.3 miPlatform NewsBlackheath Grove, Lewisham, SE3 9LEWalking directions to Platform News