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Get started12 Constable Walk is a three-bedroom end-of-terrace house in Southwark, London, London (SE21 7LX). It has a recorded floor area of 109 m² (around 1173 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (February 2026) shows a C (score 76), near the top of the C band. When first surveyed in March 2016 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and lighting went from Very Poor to Good; while window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have lagged London HPI: -3.1% per year against 0% for the wider region. Today's modelled estimate of £742,000 is 14.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£554/sq ft) was about 26.9% above the typical sold price in the postcode. Sold March 2021 for £650,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
The EPC has just been inspected, so the rating reflects current condition.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£742,000
Modelled from EPC, postcode comparables and a sale-price growth of -3.1% per year over 5 years.
£650,000
Growth on file: -3.1% per year over 5 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
On co₂ emissions, 12 Constable Walk stands well clear of the street.
Price per m²
£5,963
Street avg £6,184
Floor Area
109 m²
Street avg 106 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Sydenham Hill Rail Station — railway station.

Daytime· 07:00 – 23:00
49.4dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation upgraded
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
3 March 2021Most recent
£650,000
-13.3%over 4 years1 September 2016
£750,000
Median price across the last 5 sales in SE21 7LX: £725,000 (2024–2021).
14 Constable Walk College Road Southwark London
Sold Oct 2024
9 Constable Walk College Road Southwark London
Sold Jun 2022
1 Constable Walk College Road Southwark London
Sold Feb 2022
6 Constable Walk College Road Southwark London
Sold Dec 2021
5 Constable Walk College Road Southwark London
Sold Sept 2021
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CO₂ Emissions
2.4 t/year
Street avg 3.8 t/year
SE21 7EP
Closest school
0.3 km
Dulwich Wood Primary School. 62 schools nearby.
Night-time· 23:00 – 07:00
38.9dB