Postcode district report · August 2026

SE21, Lambeth

SE21 is the 9th Hapiest of Lambeth's 13 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. SE21 also reaches into Southwark; these figures are for its homes in Lambeth.

Homes sold

in the 12 months to August 2026

Median price

£603,475

-0.3% on the year before

Price per m²

£7,738

median, homes with an EPC

Flats

55%

of homes sold

SE21 on the HPAI Swatch

Each tile ranks SE21 against the other postcode districts of Lambeth.

Price per m²£7,738/m² 7th of 13

Price change-0.3% 4th of 13

Sales a year94 a year 10th of 13

Sales change-14.8% 3rd of 13

Energy efficiency63 EPC score 13th of 13

Carbon3.9 t CO₂ a home 12th of 13

Station nearby0.6 km 11th of 13

Yellow the best in Lambeth Green above average Blue below average Purple weakest in Lambeth

Yellow is Hapi: the more yellow, the better SE21 compares with the rest of Lambeth. These colours compare postcode districts within Lambeth; Lambeth's own Swatch compares it with areas across England and Wales.

Lambeth's postcode districts, Hapiest first

#	Postcode district	Homes sold	Median price	Price change
1	SW4	366	£600,000	-0.8%
2	SW12	97	£725,000	+1.4%
3	SE1	75	£585,000	-13.3%
4	SW8	195	£500,000	-11.8%
5	SE24	118	£575,000	-8.0%
6	SW9	285	£495,000	-2.9%
7	SW16	499	£450,000	-2.3%
8	SE11	114	£475,000	-10.4%
9	SE21	94	£603,475	-0.3%
9	SE5	74	£550,000	+8.9%
11	SW2	497	£510,000	-4.9%
12	SE27	183	£565,000	+0.9%
13	SE19	46	£432,500	-1.7%

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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 Lambeth 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 Lambeth aren't ranked.