21 Harvard Road, Isleworth, TW7 4PA
About 21 Harvard Road
21 Harvard Road is a four-bedroom detached house in Isleworth (TW7 4PA). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (June 2023) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 3 certificates since May 2010. Between certificates, wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Held since October 2003 — that's 23 years off the open market, well above the local norm. Today's modelled estimate of £810,000 sits 110.4% above the 2003 sale of £385,000. On a £-per-square-foot basis, the last sale (£311/sq ft) was about 20.9% below the postcode norm. One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved. At 115 m² it's 17.3% larger than the typical home in the postcode (98 m² median across 19 EPCs).
Know exactly what you're buying at 21 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
- Bathrooms1
- Dining roomYes
- EnsuiteYes
Outside
- GarageYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Hot water system upgraded
Planning history
- May 2010ExtensionFullIn report
Extension: Side and rear of property
Proposed double storey side extension and single storey rear extension, with rear dormer window and rooflights
- Reference
- P/2010/0717
We flagged 2 things worth checking at 21 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
30-day money-back guarantee
Sales history & valuation
21 Harvard Road valuation sits well clear of the typical sold price in this postcode.
£810,000
Modelled from EPC, postcode comparables.
£385,000
Recorded with HM Land Registry.
Sales timeline
1 October 2003Most recent
£385,000
Median price across the last 5 sales in TW7 4PA: £600,000 (2024–2014).
Nearby sales in TW7 4PA
Everything we know about 21 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
Price per m²
£3,348
Street avg £4,106
Floor Area
115 m²
Street avg 121 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.5 t/year
Street avg 6.2 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