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Get startedFlat 1 is a one-bedroom semi-detached house in Wallington (SM6 0BB). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to before 1900 and council tax band C. At 41 m² this is the smallest unit on EPC record across the building (41–123 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 (74 versus a worst of 46). Other recorded features include a basement. The latest certificate (November 2022) shows a C (score 74). When first surveyed in August 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good and window efficiency went from Very Poor to Good.
Sale prices here have outpaced England HPI: 6.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£680/sq ft) was about 183.2% above the typical sold price in the postcode. At 41 m² it sits well below the postcode median (117 m² across 10 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. Last sale on file: £300,000 in August 2023.
Flat 1 ranks among the most efficient homes in the postcode for energy use.
Price for Flat 1 has grown more than fourfold since the 1997 starting point.
£270,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 26 years.
£300,000
Growth on file: 6.9% per year over 26 years.
Flat 1 outperforms the street on price per m² by a wide margin.
Price per m²
£7,317
Street avg £3,964
Floor Area
41 m²
Street avg 60 m²
Habitable Rooms
2 rooms
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Parkgate Road — bus stop.

Daytime· 07:00 – 23:00
53.2dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation improved
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
11 August 2023Most recent
£300,000
+28.8%over 3 years18 October 2019
£233,000
+19.5%over 4 years10 April 2015
£195,000
+25.8%over 3 years19 December 2011
£155,000
+14.0%over 6 years27 May 2005
£135,950
+74.3%over 4 years7 July 2000
£78,000
+44.4%over 2 years12 December 1997
£54,000
Median price across the last 5 sales in SM6 0BB: £340,000 (2025–2018).
Street avg 3 rooms
CO₂ Emissions
1.4 t/year
Street avg 3.3 t/year
SM6 0AG
Closest school
0.5 km
All Saints Carshalton Church of England Primary School. 37 schools nearby.
Night-time· 23:00 – 07:00
43.9dB
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