CB21 4SA

Balsham · South Cambridgeshire · England

Updated September 2026

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Location overview

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Post town
Cambridge
Ward
Balsham
Local authority
South Cambridgeshire
Postcode district
CB21
Postcode sector
CB21 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
CB21 4SD 210 m
CB21 4SB 290 m
CB21 4SH 509 m
CB21 4RT 589 m
CB21 4RY 809 m
Complete postcode fields and official codes
Postcode
CB21 4SA
Status
Current
Introduced
1 September 2006
Terminated
Not published
Postcode area
CB
Postcode district
CB21
Postcode sector
CB21 4
Latitude
52.121194
Longitude
0.366898
British National Grid easting
562,138
British National Grid northing
249,627

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
South Cambridgeshire · E07000012
Electoral ward
Balsham · E05011282
Parish or community
E04001850
Westminster constituency
South Cambridgeshire · E14001481
Output area
E00091907
Lower layer super output area
South Cambridgeshire 016B · E01018219
Middle layer super output area
South Cambridgeshire 016 · E02003790

Postcode source versions

Explore CB21

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
14 recorded sales at this postcode
Address Date Price
12, Maypole Croft, West Wickham, Cambridge, CB21 4SA 15 September 2025 £415,000
12, Maypole Croft, West Wickham, Cambridge, CB21 4SA 15 September 2025 £415,000
11, Maypole Croft, West Wickham, Cambridge, CB21 4SA 14 June 2021 £480,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
1
Primary
1
Secondary
0
  1. Meadow Primary School

    Academy sponsor led

    3.5 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
8
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Anti social behaviour 3
  • Criminal damage and arson 3
  • Burglary 1
  • Vehicle crime 1

Census 2021

Population and age profile

Postcode residents
25

13 female, 12 male

Postcode households
14
Residents per household
1.8
CB21 4 residents
8,308

Age bands in CB21 4

Wider postcode sector
Age 0 to 14
15.5%

1,291 residents

Age 15 to 24
9.7%

811 residents

Age 25 to 44
19.2%

1,600 residents

Age 45 to 64
30.1%

2,504 residents

Age 65 and over
25.4%

2,116 residents

This postcode contained 0.3% of the sector's usual residents on Census Day. The age profile describes the wider CB21 4 sector, not people in this individual postcode.

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

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

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%
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.

Nearby transport

  • Church Street

    BCT · Withersfield

    2.3 miles
  • Church Street

    BCT · Withersfield

    2.3 miles
  • Burton Hill

    BCT · Withersfield

    2.4 miles
  • Burton Hill

    BCT · Withersfield

    2.4 miles
  • Research Park

    BCT · Haverhill

    2.6 miles

Relative deprivation

English Indices of Deprivation 2025 for South Cambridgeshire 016B, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.

Overall IMD decile

7 of 10

Overall England rank

21,519 of 33,755

Income
7 of 10
Employment
8 of 10
Education and skills
8 of 10
Health and disability
9 of 10
Crime
9 of 10
Housing and services
1 of 10
Living environment
5 of 10

These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.

Flood risk

Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.

High risk addresses
0
Medium risk addresses
0
Low risk addresses
0
Groundwater flood alert area
Unlikely

Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.

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 £415,000 from 2 recorded sales in CB21 4SA. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for South Cambridgeshire is £436,011 in June 2026, up 4.9% year on year.

Schools

Published establishments

1 open schools are in scope, including 1 primary and 0 secondary schools. Meadow Primary School is the nearest published school at 2.2 miles.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

8 published events cover 12 months, averaging 0.667 events per published month. The largest recorded category is Anti social behaviour with 3 events.

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