Postcode district report · August 2026

W4, Hounslow

W4 is the 4th Hapiest of Hounslow's 9 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. W4 also reaches into Ealing; these figures are for its homes in Hounslow.

Homes sold
297
in the 12 months to August 2026
Median price
£817,000
-3.3% on the year before
Price per m²
£8,736
median, homes with an EPC
Flats
50%
of homes sold

W4 on the HPAI Swatch

Each tile ranks W4 against the other postcode districts of Hounslow.

Price per m²£8,736/m² 1st of 9
Price change-3.3% 8th of 9
Sales a year297 a year 1st of 9
Sales change-28.3% 8th of 9
Energy efficiency65 EPC score 9th of 9
Carbon4.4 t CO₂ a home 9th of 9
Station nearby0.4 km 1st of 9
Yellow the best in Hounslow Green above average Blue below average Purple weakest in Hounslow

Yellow is Hapi: the more yellow, the better W4 compares with the rest of Hounslow. These colours compare postcode districts within Hounslow; Hounslow's own Swatch compares it with areas across England and Wales.

Hounslow's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 TW8 192£453,750 +6.8%
2 TW7 275£490,000 +1.0%
3 TW14 164£445,000 +4.7%
4 W4 297£817,000 -3.3%
5 TW3 162£424,250 -0.5%
6 TW13 199£429,950 -0.0%
7 TW4 74£450,500 -0.1%
8 TW5 92£510,000 -2.9%
9 UB2 20£487,500 -8.0%

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About these figures

Price per m²
Median price per square metre of homes sold in the last 12 months (homes with an EPC).
Price change
Median price in the last 12 months against the 12 months before.
Sales a year
Open-market sales in the last 12 months. More sales means a deeper, easier market.
Sales change
Sales in the 12 months to three months ago against the year before. The newest months are left out: Land Registry registers sales late.
Energy efficiency
Average EPC energy efficiency score of homes sold (higher is more efficient).
Carbon
Average carbon emissions of homes sold, tonnes a year. Lower is better.
Station nearby
Median distance from homes sold to the nearest railway station. Closer is better.

Open-market sales from HM Land Registry Price Paid Data in the 12 months to August 2026 (homes in Hounslow only); price per m², energy and carbon from the homes sold that have an Energy Performance Certificate. Postcode districts with fewer than 20 sales a year in Hounslow aren't ranked.