19 Marbaix Gardens, Isleworth, TW7 4FD
About 19 Marbaix Gardens
19 Marbaix Gardens is a detached house in Isleworth (TW7 4FD). It has a recorded floor area of 153 m² (around 1644 sq ft) and council tax band G. The latest certificate (November 2011) returns a high B (score 85), putting the home a stone's throw from an A rating. The latest certificate is from November 2011, so improvements made since then won't be reflected.
One planning record on file: an extension approved in 2021. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Last sold in November 2012, so it's been off the market for around 14 years. Today's modelled estimate of £808,000 is 29.3% above the 2012 sale price.
Know exactly what you're buying at 19 Marbaix Gardens
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
19 Marbaix Gardens'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This certificate is over 10 years old and is no longer valid.Expired 09 Nov 2021
EPC Rating
Planning history
- Oct 2021ConservatoryFullIn report
Extension: Single storey · Rear of property
Conversion of garage into habitable room with a window to replace garage door to the front and additional window to the rear, erection of a single storey rear extension (conservatory) to the house
Extension- Documents
- 5 docs on file
- Reference
- P/2021/3290
We flagged 2 things worth checking at 19 Marbaix Gardens
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
19 Marbaix Gardens valuation sits well clear of the typical sold price in this postcode.
£808,000
Modelled from EPC, postcode comparables.
£625,000
Recorded with HM Land Registry.
Sales timeline
30 November 2012Most recent
£625,000
Median price across the last 5 sales in TW7 4FD: £840,000 (2025–2019).
Nearby sales in TW7 4FD
Everything we know about 19 Marbaix Gardens, 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 Marbaix Gardens homes
On years held, 19 Marbaix Gardens stands well clear of the street.
Price per m²
£4,092
Street avg £4,462
Floor Area
153 m²
Street avg 141 m²
CO₂ Emissions
2.0 t/year
Street avg 2.0 t/year
Years Held
14 years
Street avg 12 years
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
0.1 km
Thornbury Avenue/Great West Rd — bus stop.
Closest school
0.4 km
Isleworth and Syon School for Boys. 46 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
55.4dB

Night-time· 23:00 – 07:00
45.8dB