6 Byfield Road, Isleworth, TW7 7AF
About 6 Byfield Road
6 Byfield Road is a three-bedroom end-of-terrace house in Isleworth (TW7 7AF). It has a recorded floor area of 88 m² (around 952 sq ft), construction records dating it to 1900-1929 and council tax band E. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Our model identifies extension potential, subject to local planning policy. The latest certificate (May 2011) shows a D (score 58), a step below the typical UK home. The latest certificate is from May 2011, so improvements made since then won't be reflected.
Untraded for 23 years, with the last transfer in August 2003. Across 1997–2003, sale prices on this property compounded at 13.4% per year. Today's modelled estimate of £642,000 sits 127.3% above the 2003 sale of £282,500. 11 planning records sit against the property, 7 approved, 2 refused. Past consents include an extension and tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. At 88 m² it's 20.3% larger than the typical home in the postcode (74 m² median across 14 EPCs).
Know exactly what you're buying at 6 Byfield 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
- Bedrooms3
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
Building
- Listed buildingYes
- Extension potentialPossible
Energy performance
6 Byfield Road's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 08 May 2021
EPC Rating
Planning history
6 Byfield Road has been extended on multiple sides of the property across separate planning applications.
- Jun 2020ExtensionAmendmentIn report
Non material amendment to install Juliette balcony instead of window on rear roof extension at the second floor level following planning permission 00188/6/P6 dated 22/07/2019
- Documents
- 4 docs on file
- Reference
- P/2020/1614
- Mar 2020ExtensionFullIn report
Extension: Side of property
Erection of a part single part two storey side extension to the house
- Documents
- 14 docs on file
- Reference
- P/2020/0358
We flagged 1 thing worth checking at 6 Byfield 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
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Sales history & valuation
Sale price has at least doubled since 1997.
£642,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.4% per year over 6 years.
£282,500
Growth on file: 13.4% per year over 6 years.
Sales timeline
28 August 2003Most recent
£282,500
+104.7%over 5 years12 December 1997
£138,000
Median price across the last 5 sales in TW7 7AF: £699,950 (2024–2021).
Nearby sales in TW7 7AF
Everything we know about 6 Byfield 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
- Larger development activity nearby

Versus other Byfield Road homes
On epc rating, 6 Byfield Road runs well behind the street norm.
Price per m²
£3,194
Street avg £6,046
Floor Area
88 m²
Street avg 80 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.6 t/year
Street avg 3.5 t/year
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1 Eve Road
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Isleworth Library — bus stop.
Closest school
0.2 km
St Mary's Catholic Primary School, Isleworth. 43 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
52.4dB

Night-time· 23:00 – 07:00
43.5dB