SW1H postcode district: City of Westminster and around

SW1H is a postcode district in England, with 91 postcodes in use in 2 sectors. It has postcodes in City of Westminster and Wandsworth. It is split between 2 councils: Westminster (88 postcodes) and Wandsworth (3).

Postcodes in use
91
Sectors
2
Councils
2 councils
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in SW1H, by flood risk

Map of every postcode in SW1H, by flood risk Of the 91 postcodes in SW1H that ONS places, 75 are at very low risk only and 16 are not on the Environment Agency's at-risk list. Places named: St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212A302A202A3203 SW1H 0BT: not on the flood risk listSW1H 0HN: not on the flood risk listSW1H 9AD: not on the flood risk listSW1H 9AG: not on the flood risk listSW1H 9AP: not on the flood risk listSW1H 9BU: not on the flood risk listSW1H 0AA: very low flood risk onlySW1H 0AB: very low flood risk onlySW1H 0AD: very low flood risk onlySW1H 0AE: very low flood risk onlySW1H 0AF: very low flood risk onlySW1H 0AJ: very low flood risk onlySW1H 0AQ: very low flood risk onlySW1H 0AR: very low flood risk onlySW1H 0AT: very low flood risk onlySW1H 0AX: very low flood risk onlySW1H 0AZ: very low flood risk onlySW1H 0BB: very low flood risk onlySW1H 0BD: very low flood risk onlySW1H 0BF: very low flood risk onlySW1H 0BH: very low flood risk onlySW1H 0DB: very low flood risk onlySW1H 0DJ: very low flood risk onlySW1H 0DX: very low flood risk onlySW1H 0ET: very low flood risk onlySW1H 0EX: very low flood risk onlySW1H 0HU: very low flood risk onlySW1H 0HW: very low flood risk onlySW1H 0NB: very low flood risk onlySW1H 0ND: very low flood risk onlySW1H 0NE: very low flood risk onlySW1H 0NN: very low flood risk onlySW1H 0NP: very low flood risk onlySW1H 0PH: very low flood risk onlySW1H 0PT: very low flood risk onlySW1H 0PX: very low flood risk onlySW1H 0PY: very low flood risk onlySW1H 0QS: very low flood risk onlySW1H 0QU: very low flood risk onlySW1H 0QW: very low flood risk onlySW1H 0RJ: very low flood risk onlySW1H 0TL: very low flood risk onlySW1H 9AA: very low flood risk onlySW1H 9AB: very low flood risk onlySW1H 9AH: very low flood risk onlySW1H 9BL: very low flood risk onlySW1H 9BP: very low flood risk onlySW1H 9NA: very low flood risk onlySW1H 9DJ: very low flood risk onlySW1H 9DP: very low flood risk onlySW1H 9EA: very low flood risk onlySW1H 9ET: very low flood risk onlySW1H 9EU: very low flood risk onlySW1H 9EX: very low flood risk onlySW1H 9HE: very low flood risk onlySW1H 9HP: very low flood risk onlySW1H 9NP: very low flood risk onlySW1H 9JA: very low flood risk onlySW1H 9JH: very low flood risk onlySW1H 9JY: very low flood risk onlySW1H 9LA: very low flood risk onlySW1H 9LH: very low flood risk onlySW1H 9LL: very low flood risk onlySW1H 9LQ: very low flood risk onlySW1H 9NB: very low flood risk onlySW1H 9NE: very low flood risk onlySW1H 9NH: very low flood risk onlySW1H 9NJ: very low flood risk onlySW1H 9NS: very low flood risk only St James's Map of every postcode in SW1H, by flood risk Of the 91 postcodes in SW1H that ONS places, 75 are at very low risk only and 16 are not on the Environment Agency's at-risk list. Places named: St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212 St James's
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 75
  • Not on the at-risk list: 16

Of the 91 postcodes in SW1H that ONS places, 75 are at very low risk only and 16 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.4986, longitude -0.1335. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

What broadband can you get in SW1H?

Ofcom reports on 81 of the 91 postcodes in SW1H. At 66 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit66 of 81
Postcodes where every home can get superfast66 of 81

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is SW1H at risk of flooding?

75 of the 91 postcodes in SW1H have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts none of the homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 75 of 91 postcodes Very low: 1,280

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in SW1H?

Homes in SW1H sold for a typical £837,500 in the 12 months to August 2026, across 20 sales, down 37.3% on the 12 months before, HM Land Registry's figures show.

£837,500 typical price, the 12 months to August 2026
£1,335,000 12 months to August 2025
▼ down 37.3% on the 12 months before
  • Flat or maisonette £837,500 20 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SW1H

Pick a sector, then a postcode. A sector is the district plus the next digit.

SW1H 050 postcodesSW1H 941 postcodes
UK postcode format explained

Places in SW1H

Towns and villages with postcodes in SW1H, and how many each has here.

City of Westminster postcodes,88Wandsworth postcodes,3

Who covers SW1H

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Cities of London and Westminster88
  • Battersea3

Police force areas

  • Metropolitan Police91

Next to SW1H

SW1E postcode district SW1P postcode district All SW districts City of Westminster postcodes

"Next to" is by number: the districts before and after SW1H in the SW area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.