Property market
The five-year median is £350,000 from 1 recorded sale in CO4 3AS. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Colchester is £298,003 in June 2026, down 0.3% year on year.
CO4 3AS
St Anne's and St John's · Colchester · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Colchester
- Local authority
- Colchester
- Constituency
- Colchester
- Postcode district
- CO4
- Postcode sector
- CO4 3
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- CO4 3AS
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- CO
- Postcode district
- CO4
- Postcode sector
- CO4 3
- Latitude
- 51.892260
- Longitude
- 0.924281
- British National Grid easting
- 601,315
- British National Grid northing
- 225,563
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- East of England · E12000006
- Local authority district
- Colchester · E07000071
- Electoral ward
- St Anne's and St John's · E05010839
- Parish or community
- E43000228
- Westminster constituency
- Colchester · E14001176
- Output area
- E00110258
- Lower layer super output area
- Colchester 022F · E01021704
- Middle layer super output area
- Colchester 022 · E02006922
Postcode source versions
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore CO4
Property
14 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 20, Arnstones Close, Colchester, CO4 3AS | 14 January 2022 | £350,000 |
| 19, Arnstones Close, Colchester, CO4 3AS | 27 April 2020 | £255,000 |
| 1, Arnstones Close, Colchester, CO4 3AS | 25 March 2019 | £315,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 56
- Primary
- 38
- Secondary
- 10
- 578 m
Willow Brook Primary School and Nursery
Academy sponsor led
- 798 m
Unity Primary Academy
Academy sponsor led
- 870 m
St James the Great Church of England Primary School
Academy sponsor led
Recorded crime
Within 1 mile of this postcode
- Published events
- 5,264
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 2,420
- Shoplifting 442
- Anti social behaviour 410
- Public order 353
- Criminal damage and arson 344
Census 2021
Population and age profile
- Postcode residents
- 47
- Postcode households
- 18
- Residents per household
- 2.6
- CO4 3 residents
- 16,753
18 female, 29 male
Age bands in CO4 3
Wider postcode sector- Age 0 to 14
- 14.8%
- Age 15 to 24
- 27.5%
- Age 25 to 44
- 21.7%
- Age 45 to 64
- 20.5%
- Age 65 and over
- 15.4%
2,466 residents
4,587 residents
3,618 residents
3,419 residents
2,566 residents
This postcode contained 0.3% of the sector's usual residents on Census Day. The age profile describes the wider CO4 3 sector, not people in this individual postcode.
Small counts are adjusted for privacy, so totals can differ slightly between Census tables.
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%
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
12
within 5 km
COLCHESTER MEDICAL PRACTICE
78 EAST HILL, COLCHESTER, CO1 2QS
ODS code F81042
1.1 km
EAST HILL SURGERY
78 EAST HILL, COLCHESTER, CO1 2RW
ODS code F81091
1.1 km
BEACON HOUSE MINISTRIES
24 CROUCH STREET, COLCHESTER, CO3 3ES
ODS code Y01297
2.1 km
HIGHWOODS SURGERY
HIGHWOODS SQUARE, HIGHWOODS, COLCHESTER, CO4 9SR
ODS code F81679
2.1 km
TURNER ROAD SURGERY
THE PRIMARY CARE CENTRE, TURNER ROAD, COLCHESTER, CO4 5JR
ODS code Y02646
2.2 km
ABBEY FIELD MEDICAL CENTRE
YPRES ROAD, COLCHESTER, CO2 7UW
ODS code F81095
2.4 km
CREFFIELD MEDICAL GROUP
CREFFIELD MEDICAL CENTRE, 15 CAVALRY ROAD, COLCHESTER, CO2 7GH
ODS code F81115
2.5 km
BLUEBELL SURGERY
BLUEBELL RESOURCE CENTRE, JACK ANDREWS DRIVE, HIGHWOODS, COLCHESTER, CO4 9YN
ODS code F81746
2.7 km
MILL ROAD SURGERY
47 MILL ROAD, MILE END, COLCHESTER, CO4 5LE
ODS code F81636
3.0 km
ROWHEDGE SURGERY
7 RECTORY ROAD, ROWHEDGE, COLCHESTER, CO5 7HP
ODS code F81141
4.1 km
AMBROSE AVENUE GROUP PRACTICE
76 AMBROSE AVENUE, COLCHESTER, CO3 4LN
ODS code F81067
4.4 km
WIVENHOE SURGERY
WIVENHOE MEDICAL CENTRE, PHILLIP ROAD, WIVENHOE, COLCHESTER, CO7 9BA
ODS code F81028
4.8 km
Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.
Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.
Nearby transport
- 0.1 miles
Longcroft Road
BCT · Colchester
- 0.1 miles
Fairfield Gardens
BCT · Colchester
- 0.1 miles
Dilbridge Road
BCT · Colchester
- 0.2 miles
St Andrews Gardens
BCT · Colchester
- 0.2 miles
St Andrews Gardens
BCT · Colchester
Relative deprivation
English Indices of Deprivation 2025 for Colchester 022F, 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
3 of 10
Overall England rank
9,911 of 33,755
- Income
- 4 of 10
- Employment
- 3 of 10
- Education and skills
- 3 of 10
- Health and disability
- 2 of 10
- Crime
- 2 of 10
- Housing and services
- 7 of 10
- Living environment
- 7 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
Schools
56 open schools are in scope, including 38 primary and 10 secondary schools. Willow Brook Primary School and Nursery is the nearest published school at 578 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
5,264 published events cover 12 months, averaging 438.667 events per published month. The largest recorded category is Violence and sexual offences with 2,420 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.