Postcode district report · August 2026

HA4, Hillingdon

HA4 is the 4th Hapiest of Hillingdon'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.

Homes sold
460
in the 12 months to August 2026
Median price
£560,000
-3.4% on the year before
Price per m²
£6,354
median, homes with an EPC
Flats
25%
of homes sold

HA4 on the HPAI Swatch

Each tile ranks HA4 against the other postcode districts of Hillingdon.

Price per m²£6,354/m² 2nd of 9
Price change-3.4% 9th of 9
Sales a year460 a year 1st of 9
Sales change-26.7% 8th of 9
Energy efficiency66 EPC score 6th of 9
Carbon3.4 t CO₂ a home 5th of 9
Station nearby0.6 km 2nd of 8
Yellow the best in Hillingdon Green above average Blue below average Purple weakest in Hillingdon

Yellow is Hapi: the more yellow, the better HA4 compares with the rest of Hillingdon. These colours compare postcode districts within Hillingdon; Hillingdon's own Swatch compares it with areas across England and Wales.

Hillingdon's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 UB10 330£552,500 +0.5%
2 HA5 96£660,000 +6.9%
3 UB3 222£459,000 -0.2%
4 HA4 460£560,000 -3.4%
5 UB7 172£432,500 +1.8%
6 UB8 229£475,000 +4.7%
7 UB4 171£490,000 -0.2%
8 HA6 128£650,000 +0.0%
9 UB9 71£490,000 +13.3%

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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 Hillingdon 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 Hillingdon aren't ranked.