171 173, Flat 5, High Street, Hounslow, TW3 1QL
About 171 173
171 173 is an end-of-terrace house in Hounslow (TW3 1QL). It has a recorded floor area of 19 m² (around 205 sq ft) and construction records dating it to 1900-1929. At 19 m² this is the smallest unit on EPC record across 171 173 (19–92 m²). The building's EPC ratings span D to A, with this unit at the bottom. The latest certificate (July 2025) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (April 2015); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good, lighting went from Very Poor to Very Good and main heating went from Very Poor to Poor; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
At 19 m² it sits well below the postcode median (57 m² across 13 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 171 173
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
171 173'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
Roof insulation improved
More low energy lighting installed
Planning history
171 173 has no planning applications on record.
Notable planning nearby
23applications of note in the surrounding area
We flagged 2 things worth checking at 171 173
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
171 173 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£214,000
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 1QL: £1,000,001 (2024–2014).
Nearby sales in TW3 1QL
Everything we know about 171 173, 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 High Street homes
On floor area, 171 173 runs well behind the street norm.
EPC Rating
63 (D)
Street avg 67 (D)
Floor Area
19 m²
Street avg 61 m²
CO₂ Emissions
0.4 t/year
Street avg 2.0 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
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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
0.0 km
Fair Street — bus stop.
Closest school
0.2 km
Lift Kingsley. 53 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
53.9dB
Night-time· 23:00 – 07:00
43.9dB