Postcode district report · August 2026

SE23, Southwark

SE23 is the 7th Hapiest of Southwark's 10 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. SE23 also reaches into Lewisham; these figures are for its homes in Southwark.

Homes sold
22
in the 12 months to August 2026
Median price
£445,250
+16.7% on the year before
Price per m²
£6,866
median, homes with an EPC
Flats
59%
of homes sold

SE23 on the HPAI Swatch

Each tile ranks SE23 against the other postcode districts of Southwark.

Price per m²£6,866/m² 9th of 10
Price change+16.7% 3rd of 10
Sales a year22 a year 10th of 10
Sales change+4.3% 1st of 10
Energy efficiency67 EPC score 6th of 10
Carbon3.5 t CO₂ a home 8th of 10
Station nearby0.7 km 8th of 10
Yellow the best in Southwark Green above average Blue below average Purple weakest in Southwark

Yellow is Hapi: the more yellow, the better SE23 compares with the rest of Southwark. These colours compare postcode districts within Southwark; Southwark's own Swatch compares it with areas across England and Wales.

Southwark's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 SE21 38£1,385,000 +24.8%
2 SE1 476£560,000 -4.3%
3 SE15 435£550,000 +3.8%
4 SE24 38£1,122,500 +21.4%
5 SE22 317£725,000 +10.3%
6 SE17 166£481,500 +3.5%
7 SE16 333£460,000 -8.0%
7 SE23 22£445,250 +16.7%
9 SE19 33£465,000 -2.1%
10 SE5 264£450,000 -6.2%

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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 Southwark 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 Southwark aren't ranked.