21 Cranborne Avenue, Surbiton, KT6 7JP
About 21 Cranborne Avenue
21 Cranborne Avenue is a semi-detached house in Surbiton (KT6 7JP). It has a recorded floor area of 158 m² (around 1701 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (April 2016) shows a C (score 70). The recommended improvements would push it to B (score 82). The latest certificate is from April 2016, so improvements made since then won't be reflected.
Held since June 2006 — that's 20 years off the open market, well above the local norm. At 158 m² the property is well over the postcode median (85 m² across 21 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £833,000 sits 119.2% above the 2006 sale of £380,000. On a £-per-square-foot basis, the last sale (£223/sq ft) was about 24.6% below the postcode norm. 9 planning records sit against the property, 2 approved, 6 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21 Cranborne Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 Apr 2026
EPC Rating
Planning history
A a single-storey side and rear extension application was refused at 21 Cranborne Avenue in 2022.
- Jul 2022ExtensionFullIn report
Extension: Single storey · Side and rear of property
Erection of first floor side and rear extension
- Documents
- 5 docs on file
- Reference
- 22/01491/HOU
- Sept 2020ExtensionFullIn report
Extension: Part single, part two storey · Rear of property
Erection of part single storey and part two storey rear extension
- Documents
- 4 docs on file
- Reference
- 20/01727/HOU
We flagged 3 things worth checking at 21 Cranborne 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.
- Signs of HMO activity in the area
- Larger development activity nearby
- A planning decision worth checking
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Sales history & valuation
21 Cranborne Avenue valuation sits well clear of the typical sold price in this postcode.
£833,000
Modelled from EPC, postcode comparables.
£380,000
Recorded with HM Land Registry.
Sales timeline
20 June 2006Most recent
£380,000
Median price across the last 5 sales in KT6 7JP: £590,000 (2025–2020).
Nearby sales in KT6 7JP
Everything we know about 21 Cranborne Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
- A planning decision worth checking
Versus other Cranborne Avenue homes
21 Cranborne Avenue outperforms the street on floor area by a wide margin.
Price per m²
£2,405
Street avg £4,779
Floor Area
158 m²
Street avg 97 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.7 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Tolworth Rail Station — railway station.
Closest school
0.7 km
Tolworth Girls' School and Sixth Form. 32 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
57.4dB
Night-time· 23:00 – 07:00
49.4dB