9 Colston Avenue, Carshalton, SM5 2PH
About 9 Colston Avenue
9 Colston Avenue is a three-bedroom semi-detached house in Carshalton (SM5 2PH). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (August 2022) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 88), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£683/sq ft) was about 92.8% above the typical sold price in the postcode. At 85 m² it's 28% smaller than the typical home in the postcode (118 m² median across 11 EPCs). Most recent transfer: January 2023 at £625,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenRear
- ParkingOff street
Building
- Heating systemGas
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
A recent planning application at 9 Colston Avenue was refused — worth checking the council file.
- Nov 2025ExtensionAmendmentIn report
Extension: Side and rear of property
Non material amendment to approved application DM2025/00744 which allowed the 'Erection of a part one, part two storey side and rear extension and a single storey outbuilding in the rear garden,' to allow for increase in height of outbuilding.
- Agent
- NLA
- Documents
- 5 docs on file
- Reference
- DM2025/01325
- Aug 2025ExtensionFullIn report
Extension: Part single, part two storey · Side and rear of property
Erection of a part one, part two storey side and rear extension and a single storey outbuilding in the rear garden.
- Agent
- NLA
- Documents
- 20 docs on file
- Reference
- DM2025/00744
We flagged 1 thing worth checking at 9 Colston 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.
- A planning decision worth checking
30-day money-back guarantee
Sales history & valuation
9 Colston Avenue valuation sits well clear of the typical sold price in this postcode.
£668,000
Modelled from EPC, postcode comparables.
£625,000
Recorded with HM Land Registry.
Sales timeline
30 January 2023Most recent
£625,000
Median price across the last 5 sales in SM5 2PH: £655,500 (2023–2021).
Nearby sales in SM5 2PH
Versus other Colston Avenue homes
9 Colston Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£7,353
Street avg £4,332
Floor Area
85 m²
Street avg 124 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
3.4 t/year
Street avg 4.0 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
14/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Colston Avenue — bus stop.
Closest school
0.3 km
Carshalton High School for Girls. 42 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
53.3dB

Night-time· 23:00 – 07:00
44.3dB







