12 Cowper Avenue, Sutton, SM1 3RD
About 12 Cowper Avenue
12 Cowper Avenue is a mid-terrace house in Sutton (SM1 3RD). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (October 2022) shows a G (score 17), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 90), a 5-band jump. Main heating runs on electricity.
Held since April 2005 — that's 21 years off the open market, well above the local norm. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £388,000 sits 142.5% above the 2005 sale of £160,000. On a £-per-square-foot basis, the last sale (£201/sq ft) was about 24% below the postcode norm.
Energy performance
12 Cowper Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
12 Cowper Avenue has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
We flagged 1 thing worth checking at 12 Cowper Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
12 Cowper Avenue valuation sits well clear of the typical sold price in this postcode.
£388,000
Modelled from EPC, postcode comparables.
£160,000
Recorded with HM Land Registry.
Sales timeline
24 April 2005Most recent
£160,000
Median price across the last 5 sales in SM1 3RD: £460,274 (2024–2020).
Versus other Cowper Avenue homes
On epc rating, 12 Cowper Avenue runs well behind the street norm.
Price per m²
£2,162
Street avg £3,972
Floor Area
74 m²
Street avg 82 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
6.4 t/year
Street avg 3.1 t/year
Similar properties nearby
1 Aylesbury Court, Benhill Wood Road
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1 Connaught Road
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1 Cowper Avenue
SM1 3RD
1 Byron Avenue
SM1 3RA
1 Calthorpe Gardens
SM1 3DF
1 Arlington Close
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1 Copthorne Court, Oakhill Road
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Byron Avenue (SM1) — bus stop.
Closest school
0.7 km
St Philomena's Catholic High School for Girls. 44 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
52.0dB

Night-time· 23:00 – 07:00
41.6dB







