SW1Y

UK postcode district

Updated September 2026

District overview

Postcode units: 682
Current units: 183
Coordinate coverage: 100%
Electoral wards: 3

Coverage context

Countries represented: England
English regions represented: London
Local authority codes: 2
Terminated postcode units: 499

Postcode sectors in SW1Y

Choose a sector to browse its complete postcode-unit directory.

3 sectors

Property

Across this district

View property report

717 recorded sales at this postcode

Address	Date	Price
Georgian House, 10, Flat 9, Bury Street, London, SW1Y 6AA	26 June 2026	£900,000
33, St James's Square, London, SW1Y 4JS	1 April 2026	£93,000,000
Bray House, Flat 6, Duke Of York Street, London, SW1Y 6JX	13 February 2026	£675,000

Recorded crime

Across this district

View crime report

Published events: 5,263
Months covered: 12
Latest month: June 2026

Most recorded categories in this period

Theft from the person 1,584
Other theft 1,149
Violence and sexual offences 845
Anti social behaviour 323
Public order 298

Census 2021

Population and age profile

SW1Y usual residents: 459
Age-profile population: 397

Age bands in SW1Y

Postcode district

Age 0 to 14: 4.5%
Age 15 to 24: 11.6%
Age 25 to 44: 41.8%
Age 45 to 64: 29.7%
Age 65 and over: 12.3%

How to read these estimates

The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

The median Ofcom availability percentage across 168 current postcode units in this district. Each postcode is weighted equally, not by premises.

Superfast, 30 Mbit/s+: 100%
Ultrafast, 100 Mbit/s+: 100%
Ultrafast, 300 Mbit/s+: 100%
Gigabit-capable: 100%

Unable to receive decent fixed or FWA broadband: 0%
Next Generation Access: 100%
Decent broadband available from fixed wireless: 0%

144 postcode units had 100% superfast coverage, 144 had 100% gigabit-capable coverage, and 0 had at least some premises without decent fixed or fixed-wireless access.

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £1,560,000 from 85 recorded sales in SW1Y. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for City of Westminster is £854,198 in June 2026, down 25.4% year on year.

Recorded crime

Published police records

5,263 published events cover 12 months, averaging 438.583 events per published month. The largest recorded category is Theft from the person with 1,584 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.