23 Harvard Road, Isleworth, TW7 4PA
About 23 Harvard Road
23 Harvard Road is a four-bedroom detached house in Isleworth (TW7 4PA). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (May 2012) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 71), a 2-band jump. The latest certificate is from May 2012, so improvements made since then won't be reflected.
At 134 m² the property is well over the postcode median (98 m² across 19 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). On the market in November 2012 and unlisted since — roughly 14 years. 2 planning records sit against the property, 0 approved, 1 refused. Across 1998–2012, sale prices on this property compounded at 8.1% per year. Today's modelled estimate of £795,000 is 36.5% above the 2012 sale price.
Know exactly what you're buying at 23 Harvard 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
What this property has
Inside
- Bedrooms4
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
Energy performance
23 Harvard 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This certificate is over 10 years old and is no longer valid.Expired 11 May 2022
EPC Rating
Planning history
- Sept 2005
- Dec 2004ExtensionFullIn report
Extension: Single storey
Erection of a second floor extension to form additional floor and roof terrace to first floor level, replacement of existing single storey garage/utility room to form shower/wc/utility and reception room to existing dwellinghouse.
- Reference
- P/2004/3335
We flagged 2 things worth checking at 23 Harvard 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
23 Harvard Road has more than tripled in price since its earliest registered sale in 1998.
£795,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.1% per year over 15 years.
£582,500
Growth on file: 8.1% per year over 15 years.
Sales timeline
28 November 2012Most recent
£582,500
+43.8%over 9 years3 August 2003
£405,000
+119.5%over 5 years23 January 1998
£184,500
Median price across the last 5 sales in TW7 4PA: £600,000 (2024–2014).
Nearby sales in TW7 4PA
Everything we know about 23 Harvard 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 Harvard Road homes
23 Harvard Road is notably below the street on epc rating.
Price per m²
£4,347
Street avg £3,995
Floor Area
134 m²
Street avg 119 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
8.3 t/year
Street avg 5.9 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
West Thames College — bus stop.
Closest school
0.1 km
West Thames College. 45 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
54.4dB

Night-time· 23:00 – 07:00
44.2dB