21 College Road, Isleworth, TW7 5DJ
About 21 College Road
21 College Road is a semi-detached house in Isleworth (TW7 5DJ). It has a recorded floor area of 190 m² (around 2049 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (March 2012) shows a C (score 69), just inside the C band. The latest certificate is from March 2012, so improvements made since then won't be reflected.
At 190 m² the property is well over the postcode median (115 m² across 13 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 77% of similar EPCs). 5 planning records sit against the property, 3 approved, 2 refused. Past consents include tree works and an extension, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. Across 2006–2012, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £1,040,000 is 31.7% above the 2012 sale price. On a £-per-square-foot basis, the last sale (£385/sq ft) was about 19.6% above the typical sold price in the postcode. Last changed hands 14 years ago, in November 2012.
Know exactly what you're buying at 21 College Road
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
21 College Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 30 Mar 2022
EPC Rating
Planning history
A tree works application was refused at 21 College Road in 2024.
- Jan 2024Tree WorksTreesIn report
Work to tree within a conservation area T2 Cherry (Prunus spp) - reduce any overhang back to the boundary, removing approx. 2-3m of growth.
Conservation Area- Documents
- 4 docs on file
- Reference
- P/2024/0039
- Jan 2024Tree WorksTreesIn report
Works to a tree within a conservation area - Cherry (Prunus spp) Tree to reduce any overhang back to the boundary, removing approx. 2-3m of growth
- Documents
- 2 docs on file
- Reference
- P/2023/3554
We flagged 2 things worth checking at 21 College 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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
21 College Road valuation sits well clear of the typical sold price in this postcode.
£1,040,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 6 years.
£789,500
Growth on file: 6.9% per year over 6 years.
Sales timeline
8 November 2012Most recent
£789,500
+50.4%over 6 years24 September 2006
£525,000
Median price across the last 5 sales in TW7 5DJ: £720,000 (2025–2018).
Nearby sales in TW7 5DJ
Everything we know about 21 College Road, 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

Versus other College Road homes
21 College Road outperforms the street on floor area by a wide margin.
Price per m²
£4,147
Street avg £4,747
Floor Area
190 m²
Street avg 140 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
6.4 t/year
Street avg 6.6 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Isleworth — railway station.
Closest school
0.4 km
West Thames College. 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
54.2dB

Night-time· 23:00 – 07:00
43.8dB