SO53 postcode district: Chandler's Ford and around, Hampshire

SO53 is a postcode district in Hampshire, with 860 postcodes in use in 5 sectors. It has postcodes in Chandler's Ford and Eastleigh. It is split between 3 councils: Eastleigh (706 postcodes), Test Valley (152) and Winchester (2).

Postcodes in use: 860
Sectors: 5
Councils: 3 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 SO53, and which are new since 2020

New since 2020: 2
In use before 2020: 858

Of the 860 postcodes in SO53 that ONS places, 2 are new since 2020 and 858 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 50.9861, longitude -1.3837. 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; when each came into use: the same directory; 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

The 2 newest postcodes

SO53 2TBOctober 2023 SO53 1ANAugust 2020

What broadband can you get in SO53?

Ofcom reports on 850 of the 860 postcodes in SO53. At 710 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit710 of 850

Postcodes where every home can get superfast828 of 850

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 SO53 at risk of flooding?

105 of the 860 postcodes in SO53 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 356 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 105 of 860 postcodes High: 255Medium: 101Low: 433Very low: 4

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 SO53?

Homes in SO53 sold for a typical £397,500 in the 12 months to August 2026, across 412 sales, down 3.3% on the 12 months before, HM Land Registry's figures show.

£397,500 typical price, the 12 months to August 2026

£411,000 12 months to August 2025

▼ down 3.3% on the 12 months before

Detached £550,000 206 sales
Semi-detached £367,500 67 sales
Terraced £300,000 91 sales
Flat or maisonette £202,178 48 sales

Each bar is that kind's typical price, against the most expensive kind here.

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