Flat 3, 316 Hanworth Road, Hounslow, TW3 3SH
About Flat 3
Flat 3 is a semi-detached house in Hounslow (TW3 3SH). It has a recorded floor area of 81 m² (around 872 sq ft) and construction records dating it to 2020. At 81 m² this is the largest unit on EPC record across the building (50–81 m²). On EPC score it ranks first in the building (85 versus a worst of 83). The latest certificate (November 2021) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in March 2020 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Average to Very Good.
At 81 m² the property is well over the postcode median (59 m² across 40 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and subdivision, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£763/sq ft) was about 356.5% above the typical sold price in the postcode. Most recent transfer: August 2020 at £665,000.
Know exactly what you're buying at Flat 3
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
Flat 3'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
High performance glazing installed
Cavity wall insulation installed
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Mar 2020SubdivisionFullIn report
Extension: Two storey · Side of property
Erection of two storey side extension and conversion of property to three one-bedroom flats and two two-bedroom flats with associated car parking, bin and bike store
Extension- Documents
- 27 docs on file
- Reference
- P/2019/2948
- Jun 2013SubdivisionFullIn report
Extension: Two storey · Side of property
Erection of two storey side extension and conversion of house to three x one bedroom flats and two x two bedroom flats with associated basement car parking
Extension- Reference
- P/2013/0923
We flagged 2 things worth checking at Flat 3
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
Flat 3's sale-price growth has lagged the wider UK trajectory across its history on file.
£637,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.1% per year over 13 years.
£665,000
Growth on file: -0.1% per year over 13 years.
Sales timeline
27 August 2020Most recent
£665,000
-1.5%over 12 years8 October 2007
£675,000
Median price across the last 5 sales in TW3 3SH: £547,500 (2024–2023).
Nearby sales in TW3 3SH
Everything we know about Flat 3, 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 Hanworth Road homes
Floor Area for Flat 3 runs comfortably ahead of the street norm.
Price per m²
£8,210
Street avg £7,514
Floor Area
81 m²
Street avg 45 m²
CO₂ Emissions
1.0 t/year
Street avg 1.9 t/year
Years Held
6 years
Street avg 17 years
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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
0.2 km
Hibernia Road — bus stop.
Closest school
0.5 km
Orchard Primary School. 44 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
53.6dB

Night-time· 23:00 – 07:00
44.1dB