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Get started11b is a semi-detached house in London (SE21 8JD). It has a recorded floor area of 91 m² (around 980 sq ft) and construction records dating it to 2012 onwards. At 91 m² this is the 17th smallest of 18 units on EPC record in the building, where floor areas span 38–99 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (80 versus a worst of 40). The latest certificate (January 2025) shows a C (score 80), near the top of the C band. When first surveyed in March 2012 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Very Good, window efficiency went from Poor to Good and lighting went from Very Poor to Very Good.
Sale prices here have outpaced London HPI: 8.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£485/sq ft) was about 36.9% above the typical sold price in the postcode. Most recent transfer was March 2025 at £475,000 — fresh data.
Price for 11b has grown more than fourfold since the 1996 starting point.
£487,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.1% per year over 29 years.
£475,000
Growth on file: 8.1% per year over 29 years.
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Years Held for 11b lags the street by a wide margin.
Price per m²
£5,220
Street avg £5,241
Floor Area
91 m²
Street avg 77 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Thurlow Park Road — bus stop.

Daytime· 07:00 – 23:00
54.0dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
High performance glazing installed
Cavity wall insulation installed
Heating controls changed
Hot water efficiency decreased
Cavity wall insulation installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
24 March 2025Most recent
£475,000
+3.3%over 6 years30 January 2019
£460,000
+85.1%over 6 years19 December 2012
£248,450
+85.4%over 12 years24 March 2000
£134,000
+91.4%over 7 months1 September 1999
£70,000
+40.0%over 3 years4 April 1996
£50,000
Median price across the last 5 sales in SE21 8JD: £500,000 (2025–2024).
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CO₂ Emissions
1.7 t/year
Street avg 2.6 t/year
Closest school
0.4 km
The Elmgreen School. 64 schools nearby.
Night-time· 23:00 – 07:00
45.1dB