Harriot House, Flat 5, 9 Clarke Avenue, Hounslow, TW3 4FE
About Harriot House
Harriot House is a detached house in Hounslow (TW3 4FE). It has a recorded floor area of 50 m² (around 538 sq ft). At 50 m² this is the smallest unit on EPC record across Harriot House (50–90 m²). The latest certificate (July 2018) returns a high B (score 85), putting the home a stone's throw from an A rating.
At 50 m² it sits well below the postcode median (72 m² across 40 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at Harriot 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
Harriot House's carbon output is low for the local stock.
EPC Rating
Planning history
Harriot House has no planning applications on record.
Notable planning nearby
18applications of note in the surrounding area
We flagged 1 thing worth checking at Harriot 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
30-day money-back guarantee
Sales history & valuation
Harriot House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£325,000
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 3 sales in TW3 4FE: £410,000 (2024–2019).
Everything we know about Harriot 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
Versus other Clarke Avenue homes
On floor area, Harriot House runs well behind the street norm.
EPC Rating
85 (B)
Street avg 86 (B)
Floor Area
50 m²
Street avg 71 m²
CO₂ Emissions
0.5 t/year
Street avg 0.6 t/year
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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
Civic Street — bus stop.
Closest school
0.4 km
Lampton Academy. 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
52.2dB
Night-time· 23:00 – 07:00
44.2dB