Postcode district report · August 2026

TN15, Sevenoaks

TN15 is the 8th Hapiest of Sevenoaks'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. TN15 also reaches into Tonbridge and Malling; these figures are for its homes in Sevenoaks.

Homes sold
127
in the 12 months to August 2026
Median price
£550,000
-1.8% on the year before
Price per m²
£5,726
median, homes with an EPC
Flats
6%
of homes sold

TN15 on the HPAI Swatch

Each tile ranks TN15 against the other postcode districts of Sevenoaks.

Price per m²£5,726/m² 2nd of 9
Price change-1.8% 7th of 9
Sales a year127 a year 5th of 9
Sales change-21.8% 8th of 9
Energy efficiency66 EPC score 8th of 9
Carbon8.5 t CO₂ a home 9th of 9
Station nearby1.6 km 6th of 9
Yellow the best in Sevenoaks Green above average Blue below average Purple weakest in Sevenoaks

Yellow is Hapi: the more yellow, the better TN15 compares with the rest of Sevenoaks. These colours compare postcode districts within Sevenoaks; Sevenoaks's own Swatch compares it with areas across England and Wales.

Sevenoaks's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 TN14 186£602,500 +2.3%
2 BR8 255£411,000 -0.7%
3 TN13 296£650,000 -10.3%
4 DA4 93£387,000 +4.6%
5 DA3 144£402,000 +10.7%
6 TN11 23£790,000 +26.0%
7 TN8 127£430,000 -3.4%
8 TN15 127£550,000 -1.8%
9 TN16 53£545,000 +16.0%

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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 Sevenoaks 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 Sevenoaks aren't ranked.