24 Gisbey House, Union Lane, Isleworth, TW7 6GH
About 24 Gisbey House
24 Gisbey House is a mid-terrace house in Isleworth (TW7 6GH). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 2007-2011 and council tax band D. The latest certificate (August 2021) returns a B (score 83), comfortably above the UK average. The rating has held steady at B across 2 certificates since March 2010. Between certificates, hot-water efficiency went from Good to Very Good and main heating went from Good to Very Good; while wall efficiency dropped from Very Good to Good. At 67 m² this is the 24th smallest of 27 units on EPC record in the building, where floor areas span 48–68 m². The building's EPC ratings span D to B, with this unit at the top.
Held since June 2010 — that's 16 years off the open market, well above the local norm. At 67 m² it's 22.6% larger than the typical home in the postcode (55 m² median across 26 EPCs). Today's modelled estimate of £321,000 is 34.3% above the 2010 sale price.
Know exactly what you're buying at 24 Gisbey House
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
24 Gisbey House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
24 Gisbey House has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 2 things worth checking at 24 Gisbey House
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
24 Gisbey House valuation sits well clear of the typical sold price in this postcode.
£321,000
Modelled from EPC, postcode comparables.
£239,000
Recorded with HM Land Registry.
Sales timeline
14 June 2010Most recent
£239,000
Median price across the last 5 sales in TW7 6GH: £260,000 (2024–2021).
Nearby sales in TW7 6GH
14 Gisbey House, Union Lane, Isleworth, TW7 6GH
Sold Jun 2024
£255,00018 Gisbey House, Union Lane, Isleworth, TW7 6GH
Sold Feb 2024
£260,00011 Gisbey House, Union Lane, Isleworth, TW7 6GH
Sold Dec 2021
£250,0009 Gisbey House, Union Lane, Isleworth, TW7 6GH
Sold Apr 2021
£320,0006 Gisbey House, Union Lane, Isleworth, TW7 6GH
Sold Oct 2019
£265,000
Everything we know about 24 Gisbey House, 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 Union Lane homes
24 Gisbey House outperforms the street on years held by a wide margin.
Price per m²
£3,567
Street avg £4,697
Floor Area
67 m²
Street avg 57 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.3 t/year
Street avg 1.0 t/year
Similar properties nearby
1 Bourne Close
TW7 6HD
1 Bridge Wharf Road
TW7 6BS
1 Christabel Close
TW7 6EJ
1 Hawkfield Court, Woodlands Grove
TW7 6NU
1 Hardy House, Union Lane
TW7 6GU
1 Chase Court, Amhurst Gardens
TW7 6AH
1 Church Street
TW7 6BL
1 Gisbey House, Union Lane
TW7 6GH
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
0.0 km
Teesdale Gardens — bus stop.
Closest school
0.2 km
The Green School for Boys. 41 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
52.3dB

Night-time· 23:00 – 07:00
44.1dB