12 Lansdowne Road, Hounslow, TW3 1LQ
About 12 Lansdowne Road
12 Lansdowne Road is a semi-detached house in Hounslow (TW3 1LQ). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (January 2026) shows a D (score 55), a step below the typical UK home. The rating has held steady at D across 3 certificates since January 2016. Between certificates, hot-water efficiency dropped from Good to Average and lighting dropped from Very Good to Very Poor. The recommended improvements would push it to C (score 73). This certificate was lodged in the last six months, so the rating reflects current condition. At 41 m² this is the 5th smallest of 24 units on EPC record in the building, where floor areas span 15–144 m². The building's EPC ratings span E to C across 24 units on file.
Untraded for 19 years, with the last transfer in June 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £511,000 sits 64.8% above the 2007 sale of £310,000. On a £-per-square-foot basis, the last sale (£702/sq ft) was about 243% above the typical sold price in the postcode. At 41 m² it sits well below the postcode median (93 m² across 23 EPCs), making it one of the more compact homes locally. One historical planning record sits against the property in 2017.
Know exactly what you're buying at 12 Lansdowne Road
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
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Hot water system changed
Planning history
- May 2017OutlineIn report
Certificate of Lawfulness Existing for the use as three self-contained flats.
Retrospective- Reference
- P/2017/0854
We flagged 2 things worth checking at 12 Lansdowne Road
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
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£511,000
Modelled from EPC, postcode comparables.
£310,000
Recorded with HM Land Registry.
Sales timeline
7 June 2007Most recent
£310,000
Median price across the last 5 sales in TW3 1LQ: £450,000 (2025–2012).
Nearby sales in TW3 1LQ
Everything we know about 12 Lansdowne Road, 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 Lansdowne Road homes
EPC Rating for 12 Lansdowne Road lags the street by a wide margin.
EPC Rating
55 (D)
Street avg 66 (D)
Floor Area
41 m²
Street avg 42 m²
CO₂ Emissions
2.6 t/year
Street avg 2.0 t/year
Habitable Rooms
2 rooms
Street avg 2 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
Hounslow Blenheim Centre — bus stop.
Closest school
0.4 km
Lift Kingsley. 50 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
54.3dB

Night-time· 23:00 – 07:00
45.3dB