Property market
The five-year median is £230,000 from 1,131 recorded sales in DL12. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for County Durham is £138,148 in June 2026, up 7.0% year on year.
DL12
UK postcode district
Updated September 2026
District overview
- Postcode units
- 871
- Current units
- 726
- Coordinate coverage
- 100%
- Electoral wards
- 5
Coverage context
- Countries represented
- England
- English regions represented
- North East, North West, Yorkshire and the Humber
- Local authority codes
- 3
- Terminated postcode units
- 145
Postcode sectors in DL12
Choose a sector to browse its complete postcode-unit directory.
Property
6,638 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 18, Queen Street, Barnard Castle, DL12 8JF | 22 July 2026 | £165,000 |
| 16, Grassholme Way, Startforth, Barnard Castle, DL12 9BU | 14 July 2026 | £249,950 |
| Plot 2, Eggleston, Barnard Castle, DL12 0AH | 14 July 2026 | £677,500 |
Schools
Across this district
- Open schools
- 8
- Primary
- 6
- Secondary
- 1
Recorded crime
Across this district
- Published events
- 894
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 349
- Criminal damage and arson 94
- Other crime 93
- Anti social behaviour 86
- Public order 58
Census 2021
Population and age profile
- DL12 usual residents
- 12,362
- Age-profile population
- 12,415
Age bands in DL12
Postcode district- Age 0 to 14
- 13.1%
- 1,624 residents
- Age 15 to 24
- 10.7%
- 1,331 residents
- Age 25 to 44
- 17.1%
- 2,123 residents
- Age 45 to 64
- 30.4%
- 3,772 residents
- Age 65 and over
- 28.7%
- 3,565 residents
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
The median Ofcom availability percentage across 717 current postcode units in this district. Each postcode is weighted equally, not by premises.
- 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%
In this district, 586 postcode units had 100% superfast coverage, 414 postcode units had 100% gigabit-capable coverage, 30 postcode units had at least some premises without decent fixed or fixed-wireless access.
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, coverage at January 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
2
in this district
BARNARD CASTLE SURGERY
VICTORIA ROAD, BARNARD CASTLE, DL12 8HT
ODS code A83046
OLD FORGE SURGERY
HILL TERRACE, MIDDLETON-IN-TEESDALE, FOREST IN TEESDALE, BARNARD CASTLE, DL12 0QE
ODS code A83043
Evidence in context
Schools
8 open schools are in scope, including 6 primary and 1 secondary schools.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
894 published events cover 12 months, averaging 75 events per published month. The largest recorded category is Violence and sexual offences with 349 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.