Property market
The five-year median is £247,000 from 6 recorded sales in SY21 9BF. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Powys is £231,004 in June 2026, up 2.9% year on year.
SY21 9BF
Berriew and Castle Caereinion · Powys · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Welshpool
- Local authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr
- Postcode district
- SY21
- Postcode sector
- SY21 9
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- SY21 9BF
- Status
- Current
- Introduced
- 1 June 2021
- Terminated
- Not published
- Postcode area
- SY
- Postcode district
- SY21
- Postcode sector
- SY21 9
- Latitude
- 52.641645
- Longitude
- -3.238731
- British National Grid easting
- 316,278
- British National Grid northing
- 305,597
Statistical and administrative geographies
- Country
- Wales · W92000004
- Region
- W99999999
- Local authority district
- Powys · W06000023
- Electoral ward
- Berriew and Castle Caereinion · W05001119
- Parish or community
- W04000262
- Westminster constituency
- Montgomeryshire and Glyndwr · W07000102
- Output area
- W00002366
- Lower layer super output area
- Powys 002A · W01000444
- Middle layer super output area
- Powys 002 · W02000098
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 SY21
Property
8 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 1, Swallows Field, Castle Caereinion, Welshpool, SY21 9BF | 4 July 2025 | £144,000 |
| 1, Swallows Field, Castle Caereinion, Welshpool, SY21 9BF | 16 December 2022 | £140,000 |
| 5, Swallows Field, Castle Caereinion, Welshpool, SY21 9BF | 18 October 2022 | £405,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 1
- Primary
- 0
- Secondary
- 0
- 3.5 km
Amberleigh Residential Therapeutic School
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 15
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 10
- Burglary 1
- Other crime 1
- Public order 1
- Vehicle crime 1
Census 2021
Population and age profile
- Postcode residents
- Not supplied
- Postcode households
- Not supplied
- Residents per household
- Not available
- SY21 9 residents
- 3,217
Age bands in SY21 9
Wider postcode sector- Age 0 to 14
- 13.4%
- Age 15 to 24
- 8.8%
- Age 25 to 44
- 17.5%
- Age 45 to 64
- 29.6%
- Age 65 and over
- 30.7%
410 residents
268 residents
535 residents
906 residents
937 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
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
- 16.7%
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.
Nearby transport
- 0.1 miles
Maesgarmon
BCT · Castle Caereinion
- 0.1 miles
Maesgarmon
BCT · Castle Caereinion
- 0.2 miles
Station
BCT · Castle Caereinion
- 0.2 miles
Castle Caereinion Station (W&LLR)
MET · Castle Caereinion
- 1.0 miles
Sylfaen Station (W&LLR)
MET · Sylfaen
Evidence in context
Schools
1 open schools are in scope, including 0 primary and 0 secondary schools. Amberleigh Residential Therapeutic 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
15 published events cover 12 months, averaging 1.25 events per published month. The largest recorded category is Violence and sexual offences with 10 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.