11 Ashcombe Road, Carshalton, SM5 3ET
About 11 Ashcombe Road
11 Ashcombe Road is a four-bedroom detached house in Carshalton (SM5 3ET). It has a recorded floor area of 162 m² (around 1744 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (July 2024) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2019. Between certificates, window efficiency went from Poor to Good. The recommended improvements would lift it to B (score 81), a 2-band jump. Other recorded features include notable views, a self-contained annexe and outbuildings. Our model identifies extension potential, subject to local planning policy.
A recent sale: £1,100,000 in February 2025. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, a porch, an annexe and partial demolition, meaningful when judging how the property has evolved. Across 2007–2025, sale prices on this property compounded at 4.7% per year. On a £-per-square-foot basis, the last sale (£631/sq ft) was about 68.2% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- Private gardenSouth-facing
- OutbuildingsYes
- Notable viewsYes
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Mar 2011AnnexFullIn report
Extension: Single storey · Side and rear of property
Demolition of existing garage, rear extension and porch and erection of a single storey side and rear extension to provide non-self contained annexe accommodation and formation of a front entrance porch.
- Council
- C
ExtensionPorchDemolition- Documents
- 7 docs on file
- Reference
- C2011/63885
- Mar 2011AnnexHeritageIn report
Extension: Single storey · Side and rear of property
Demolition of existing garage, rear extension and porch and erection of a single storey side and rear extension to provide non-self contained annexe accommodation and formation of a front entrance porch.
- Council
- C
ExtensionPorchDemolition- Documents
- 3 docs on file
- Reference
- C2011/63898
We flagged 1 thing worth checking at 11 Ashcombe Road
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
Sale price has at least doubled since 2007.
£1,073,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 18 years.
£1,100,000
Growth on file: 4.7% per year over 18 years.
Sales timeline
28 February 2025Most recent
£1,100,000
+31.3%over 4 years14 July 2020
£837,500
+74.5%over 13 years12 March 2007
£480,000
Median price across the last 5 sales in SM5 3ET: £791,000 (2024–2015).
Nearby sales in SM5 3ET
Versus other Ashcombe Road homes
Years Held for 11 Ashcombe Road lags the street by a wide margin.
Price per m²
£6,790
Street avg £4,625
Floor Area
162 m²
Street avg 151 m²
Habitable Rooms
9 rooms
Street avg 7 rooms
CO₂ Emissions
5.5 t/year
Street avg 9.2 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
0.5 km
Boundary Road (SM5) — bus stop.
Closest school
0.5 km
Wood Field Primary School. 40 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
51.9dB

Night-time· 23:00 – 07:00
42.3dB







