Postcode district report · August 2026

CM11, Basildon

CM11 is the 7th Hapiest of Basildon's 8 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. CM11 also reaches into Chelmsford; these figures are for its homes in Basildon.

Homes sold
187
in the 12 months to August 2026
Median price
£460,000
-4.2% on the year before
Price per m²
£4,821
median, homes with an EPC
Flats
6%
of homes sold

CM11 on the HPAI Swatch

Each tile ranks CM11 against the other postcode districts of Basildon.

Price per m²£4,821/m² 2nd of 8
Price change-4.2% 7th of 8
Sales a year187 a year 7th of 8
Sales change-8.3% 5th of 8
Energy efficiency66 EPC score 7th of 8
Carbon3.9 t CO₂ a home 8th of 8
Station nearby1.6 km 7th of 8
Yellow the best in Basildon Green above average Blue below average Purple weakest in Basildon

Yellow is Hapi: the more yellow, the better CM11 compares with the rest of Basildon. These colours compare postcode districts within Basildon; Basildon's own Swatch compares it with areas across England and Wales.

Basildon's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 SS12 251£375,000 +1.1%
2 CM12 305£485,000 -2.0%
3 SS15 343£335,000 -1.1%
4 SS14 244£325,000 +1.6%
5 SS16 357£340,000 -5.6%
6 SS11 165£392,500 +4.0%
7 CM11 187£460,000 -4.2%
8 SS13 193£305,000 +0.0%

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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 Basildon 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 Basildon aren't ranked.