Postcode district report · August 2026

TW18, Spelthorne

TW18 is the 3rd Hapiest of Spelthorne's 5 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. TW18 also reaches into Runnymede; these figures are for its homes in Spelthorne.

Homes sold
237
in the 12 months to August 2026
Median price
£450,000
+0.0% on the year before
Price per m²
£5,208
median, homes with an EPC
Flats
29%
of homes sold

TW18 on the HPAI Swatch

Each tile ranks TW18 against the other postcode districts of Spelthorne.

Price per m²£5,208/m² 5th of 5
Price change+0.0% 3rd of 5
Sales a year237 a year 2nd of 5
Sales change-13.1% 3rd of 5
Energy efficiency66 EPC score 4th of 5
Carbon3.4 t CO₂ a home 2nd of 5
Station nearby1.0 km 3rd of 5
Yellow the best in Spelthorne Green above average Blue below average Purple weakest in Spelthorne

Yellow is Hapi: the more yellow, the better TW18 compares with the rest of Spelthorne. These colours compare postcode districts within Spelthorne; Spelthorne's own Swatch compares it with areas across England and Wales.

Spelthorne's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 TW16 224£491,000 +1.2%
2 TW19 106£417,500 +2.3%
3 TW18 237£450,000 +0.0%
4 TW17 165£505,000 -4.7%
5 TW15 252£461,000 -0.9%

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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 Spelthorne 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 Spelthorne aren't ranked.