Property market
The five-year median is £125,000 from 1 recorded sale in CO12 3JB. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Tendring is £261,717 in June 2026, up 2.6% year on year.
CO12 3JB
Harwich & Kingsway · Tendring · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Harwich
- Ward
- Harwich & Kingsway
- Local authority
- Tendring
- Constituency
- Harwich and North Essex
- Postcode district
- CO12
- Postcode sector
- CO12 3
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- CO12 3JB
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- CO
- Postcode district
- CO12
- Postcode sector
- CO12 3
- Latitude
- 51.942110
- Longitude
- 1.284350
- British National Grid easting
- 625,835
- British National Grid northing
- 232,162
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- East of England · E12000006
- Local authority district
- Tendring · E07000076
- Electoral ward
- Harwich & Kingsway · E05011945
- Parish or community
- E04004099
- Westminster constituency
- Harwich and North Essex · E14001273
- Output area
- E00111736
- Lower layer super output area
- Tendring 001B · E01021998
- Middle layer super output area
- Tendring 001 · E02004573
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 CO12
Property
37 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 3, Canning Street, Harwich, CO12 3JB | 20 August 2021 | £125,000 |
| 18, Canning Street, Harwich, CO12 3JB | 19 June 2020 | £110,000 |
| 11, Canning Street, Harwich, CO12 3JB | 23 March 2020 | £140,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 14
- Primary
- 12
- Secondary
- 2
- 427 m
Harwich Community Primary School and Nursery
Community school
- 1.1 km
The Mayflower Primary School
Community school
- 1.7 km
St Joseph's Catholic Primary School
Academy converter
Recorded crime
Within 1 mile of this postcode
- Published events
- 1,042
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 520
- Shoplifting 130
- Criminal damage and arson 93
- Anti social behaviour 82
- Other theft 56
Census 2021
Population and age profile
- Postcode residents
- 63
- Postcode households
- 21
- Residents per household
- 3.0
- CO12 3 residents
- 7,635
36 female, 27 male
Age bands in CO12 3
Wider postcode sector- Age 0 to 14
- 15.9%
- Age 15 to 24
- 11.3%
- Age 25 to 44
- 21.2%
- Age 45 to 64
- 27.3%
- Age 65 and over
- 24.4%
1,191 residents
842 residents
1,581 residents
2,038 residents
1,821 residents
This postcode contained 0.8% of the sector's usual residents on Census Day. The age profile describes the wider CO12 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
4
within 5 km
FRONKS RD FAMILY SURGERY
77 FRONKS ROAD, DOVERCOURT, HARWICH, CO12 3RS
ODS code F81221
1.3 km
MAYFLOWER MEDICAL CENTRE
419 MAIN ROAD, HARWICH, CO12 4EX
ODS code F81019
1.9 km
HAVEN HEALTH
GRANGE FARM AVENUE, FELIXSTOWE, IP11 2XD
ODS code D83081
3.9 km
HOWARD HOUSE SURGERY
31 ORWELL ROAD, FELIXSTOWE, IP11 7DD
ODS code D83015
5.0 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 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.
Nearby transport
- 0.1 miles
DaRT Harwich
BCT · Harwich
- 0.1 miles
Mayflower Avenue
BCT · Harwich
- 0.1 miles
Mayflower Avenue
BCT · Harwich
- 0.2 miles
Harwich Town Rail Station
RSE · Harwich
- 0.2 miles
Harwich Town Rail Station
RLY · Harwich
Relative deprivation
English Indices of Deprivation 2025 for Tendring 001B, 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
1 of 10
Overall England rank
2,966 of 33,755
- Income
- 2 of 10
- Employment
- 2 of 10
- Education and skills
- 1 of 10
- Health and disability
- 3 of 10
- Crime
- 2 of 10
- Housing and services
- 1 of 10
- Living environment
- 1 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
- 2
- Low risk addresses
- 19
- 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
14 open schools are in scope, including 12 primary and 2 secondary schools. Harwich Community Primary School and Nursery is the nearest published school at 427 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
1,042 published events cover 12 months, averaging 86.833 events per published month. The largest recorded category is Violence and sexual offences with 520 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.