What is the average house price in the SW18 postcode district?

The median sold price in SW18 is £642,500, based on 906 transactions recorded by HM Land Registry in the 12 months ending April 2026.

Is SW18 cheap or expensive compared with the UK average?

The Gera District Price Index (GDPI) for SW18 is 223 (UK outcode median = 100). SW18 is above-average: its median of £642,500 is 123% above the UK outcode median of £288,675 (HM Land Registry PPD, April 2026).

How much does a detached house cost in SW18?

The median price for a detached house in SW18 is £1,783,466, according to HM Land Registry Price Paid Data for the 12 months ending April 2026.

How much does a flat cost in SW18?

The median price for a flat or maisonette in SW18 is £530,000, based on HM Land Registry transaction data for the 12 months ending April 2026.

What is the typical price for a terraced house in SW18?

The median price for a terraced house in SW18 is £1,245,000 (HM Land Registry PPD, 12 months to April 2026).

How much does a semi-detached house cost in SW18?

The median price for a semi-detached house in SW18 is £1,450,000 (HM Land Registry PPD, 12 months to April 2026).

What is the Gera District Price Index for SW18?

The Gera District Price Index (GDPI) for SW18 is 223, where 100 equals the UK outcode median (£288,675). The GDPI allows direct comparison between postcode districts regardless of geography. Methodology: https://gerarent.com/methodology/gera-district-price-index.

House prices in the SW18 postcode district

Based on 906 Land Registry transactions · 12 months ending April 2026

What is the median house price in SW18?

As of April 2026, the median sold price in the SW18 postcode district is £642,500, based on 906 Land Registry transactions in the 12 months ending April 2026. The Gera District Price Index (GDPI) for SW18 is 223 — 123% above the UK outcode median of £288,675. Detached homes sold for a median of £1,783,466.

Source:HM Land Registry — Price Paid Data·As of April 2026 · updated monthly (last: 2026-06-19)

223GDPI

Gera District Price Index — SW18

223 / 100 where 100 = UK outcode median (£288,675). SW18 is 123% above the national outcode median.

How is the GDPI computed?

Median sold prices in SW18

Overall median: £642,500
vs UK outcode median: +123%
Transactions (12m): 906

By property type

Median sold price by property type in SW18 (HM Land Registry PPD, April 2026)
Property type	Median price	vs overall
Detached	£1,783,466	+178%
Semi-detached	£1,450,000	+126%
Terraced	£1,245,000	+94%
Flat / maisonette	£530,000	-18%

Property type medians are shown only where ≥3 transactions were recorded. All figures: HM Land Registry Price Paid Data, 12 months ending April 2026.

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Top 12 postcode districts with median ≤ £642,500, ordered by Gera District Price Index (highest = best value relative to national median):

Outcode	Median price	GDPI	Transactions
SW18	£642,500	223	906
CB3	£640,498	222	122
E20	£640,000	222	54
GU8	£640,000	222	193
SL5	£640,000	222	307
SW1V	£637,626	221	166
RG10	£635,000	220	217
WD3	£635,000	220	445
KT3	£631,000	219	350
N21	£632,500	219	234
SE11	£631,305	219	209
NW7	£630,000	218	278

Medians are from HM Land Registry Price Paid Data — rolling 12 months to June 2026. GDPI = Gera District Price Index (UK outcode median = 100). Your inputs are used only in your browser.

SW18 house prices — questions and answers

What is the average house price in the SW18 postcode district?: The median sold price in SW18 is £642,500, based on 906 transactions recorded by HM Land Registry in the 12 months ending April 2026.
Is SW18 cheap or expensive compared with the UK average?: The Gera District Price Index (GDPI) for SW18 is 223 (UK outcode median = 100). SW18 is above-average: its median of £642,500 is 123% above the UK outcode median of £288,675 (HM Land Registry PPD, April 2026).
How much does a detached house cost in SW18?: The median price for a detached house in SW18 is £1,783,466, according to HM Land Registry Price Paid Data for the 12 months ending April 2026.
How much does a flat cost in SW18?: The median price for a flat or maisonette in SW18 is £530,000, based on HM Land Registry transaction data for the 12 months ending April 2026.
What is the typical price for a terraced house in SW18?: The median price for a terraced house in SW18 is £1,245,000 (HM Land Registry PPD, 12 months to April 2026).
How much does a semi-detached house cost in SW18?: The median price for a semi-detached house in SW18 is £1,450,000 (HM Land Registry PPD, 12 months to April 2026).
What is the Gera District Price Index for SW18?: The Gera District Price Index (GDPI) for SW18 is 223, where 100 equals the UK outcode median (£288,675). The GDPI allows direct comparison between postcode districts regardless of geography. Methodology: https://gerarent.com/methodology/gera-district-price-index.

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All median prices are computed by GeraRent from the HM Land Registry — Price Paid Data — rolling 12 months ending April 2026. Minimum 5 transactions per outcode; type medians require ≥3. The Gera District Price Index (GDPI) is a Gera proprietary computation — methodology at https://gerarent.com/methodology/gera-district-price-index. Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.