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Get started20 Cumnor Road is a three-bedroom semi-detached house in Sutton (SM2 5DW). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2021) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, lighting dropped from Good to Average. The recommended improvements would lift it to B (score 89), a 2-band jump.
Sale prices here have outpaced Sutton HPI: 6.6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£733/sq ft) was about 142.3% above the typical sold price in the postcode. One planning record on file: an extension approved in 2022. Past consents include an extension, meaningful when judging how the property has evolved. At 76 m² it's 26.2% smaller than the typical home in the postcode (103 m² median across 29 EPCs). Last sale on file: £600,000 in February 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
20 Cumnor Road has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Erection of a single storey rear extension.
20 Cumnor Road has more than quadrupled in price since its earliest registered sale in 2000.
£658,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 22 years.
£600,000
Growth on file: 6.6% per year over 22 years.
Price per m² for 20 Cumnor Road runs comfortably ahead of the street norm.
Price per m²
£7,895
Street avg £4,250
Floor Area
76 m²
Street avg 117 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Langley Park Road — bus stop.

Daytime· 07:00 – 23:00
53.4dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
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18 February 2022Most recent
£600,000
+305.4%over 21 years3 May 2000
£148,000
Median price across the last 5 sales in SM2 5DW: £720,000 (2025–2022).
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 5.3 t/year
SM2 5HQ
Closest school
0.5 km
Manor Park Primary Academy. 41 schools nearby.
Night-time· 23:00 – 07:00
43.4dB
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