Postcode district report · August 2026

TW18, Runnymede

TW18 is the 5th Hapiest of Runnymede'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 Spelthorne; these figures are for its homes in Runnymede.

Homes sold
54
in the 12 months to August 2026
Median price
£425,000
+1.8% on the year before
Price per m²
£5,208
median, homes with an EPC
Flats
18%
of homes sold

TW18 on the HPAI Swatch

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

Price per m²£5,208/m² 3rd of 5
Price change+1.8% 2nd of 5
Sales a year54 a year 5th of 5
Sales change-13.7% 4th of 5
Energy efficiency66 EPC score 5th of 5
Carbon3.7 t CO₂ a home 4th of 5
Station nearby1.4 km 5th of 5
Yellow the best in Runnymede Green above average Blue below average Purple weakest in Runnymede

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

Runnymede's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 KT15 349£450,000 +2.3%
2 GU25 56£853,750 -2.7%
3 KT16 244£450,000 +1.1%
4 TW20 220£460,000 +0.0%
5 TW18 54£425,000 +1.8%

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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 Runnymede 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 Runnymede aren't ranked.