Room 1, 11 Grosvenor Road, Hounslow, TW3 3ER
About Room 1
Room 1 is a mid-terrace house in Hounslow (TW3 3ER). It has a recorded floor area of 97 m² (around 1044 sq ft) and construction records dating it to 1900-1929. The latest certificate (September 2023) shows a C (score 69), just inside the C band. When first surveyed in September 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to B (score 86).
At 97 m² it's 18.4% larger than the typical home in the postcode (82 m² median across 27 EPCs). Its energy rating outperforms most of the postcode (better than 74% of similar EPCs).
Know exactly what you're buying at Room 1
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Wall insulation improved
More low energy lighting installed
Planning history
Room 1 has no planning applications on record.
Notable planning nearby
24applications of note in the surrounding area
We flagged 2 things worth checking at Room 1
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
Room 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£497,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in TW3 3ER: £435,000 (2024–2018).
Nearby sales in TW3 3ER
Everything we know about Room 1, 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 Grosvenor Road homes
EPC Rating for Room 1 runs comfortably ahead of the street norm.
EPC Rating
69 (C)
Street avg 57 (D)
Floor Area
97 m²
Street avg 90 m²
CO₂ Emissions
3.3 t/year
Street avg 4.6 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
16/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Bath Road — bus stop.
Closest school
0.2 km
St Mark's Catholic School. 39 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
45.8dB