Property market
The five-year median is £450,000 from 1 recorded sale in SY21 8JB. 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 8JB
Trelystan and Trewern · 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 8
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- SY21 8JB
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- SY
- Postcode district
- SY21
- Postcode sector
- SY21 8
- Latitude
- 52.659290
- Longitude
- -3.061155
- British National Grid easting
- 328,322
- British National Grid northing
- 307,368
Statistical and administrative geographies
- Country
- Wales · W92000004
- Region
- W99999999
- Local authority district
- Powys · W06000023
- Electoral ward
- Trelystan and Trewern · W05001171
- Parish or community
- W04000351
- Westminster constituency
- Montgomeryshire and Glyndwr · W07000102
- Output area
- W00002658
- Lower layer super output area
- Powys 005D · W01000497
- Middle layer super output area
- Powys 005 · W02000101
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
10 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| Pound House, Trelystan, Welshpool, SY21 8JB | 31 July 2025 | £450,000 |
| Rhos Farm, Lot 3, Trelystan, Welshpool, SY21 8JB | 20 May 2019 | £278,284 |
| Rhos Farm, Trelystan, Welshpool, SY21 8JB | 1 April 2019 | £160,000 |
Schools
Within 5 km of this postcode
- Open schools
- 3
- Primary
- 1
- Secondary
- 0
- 3.3 km
Buttington Trewern C.P. School
Welsh establishment
- 4.2 km
Leighton C.P. School
Welsh establishment
- 4.7 km
Long Mountain CofE Primary School
Voluntary controlled school
Census 2021
Population and age profile
- Postcode residents
- 32
- 19 female, 13 male
- Postcode households
- 15
- Residents per household
- 2.1
- SY21 8 residents
- 4,734
Age bands in SY21 8
Wider postcode sector- Age 0 to 14
- 13.4%
- 637 residents
- Age 15 to 24
- 10.4%
- 491 residents
- Age 25 to 44
- 18.7%
- 887 residents
- Age 45 to 64
- 30%
- 1,424 residents
- Age 65 and over
- 27.5%
- 1,303 residents
This postcode contained 0.7% of the sector's usual residents on Census Day. The age profile describes the wider SY21 8 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+
- 0%
- Ultrafast, 100 Mbit/s+
- 0%
- Ultrafast, 300 Mbit/s+
- 0%
- Gigabit-capable
- 0%
- Unable to receive decent fixed or FWA broadband
- 6.3%
- Next Generation Access
- 100%
- Decent broadband available from fixed wireless
- 62.5%
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.
Nearby transport
- 3.1 km
Heldre Turn
BCT · Buttington
- 3.1 km
Heldre Turn
BCT · Buttington
- 3.4 km
Little Chef
BCT · Cefn
- 3.6 km
Green Dragon Inn
BCT · Buttington
- 3.6 km
Green Dragon Inn
BCT · Buttington
Evidence in context
Schools
3 open schools are in scope, including 1 primary and 0 secondary schools. Buttington Trewern C.P. School is the nearest published school at 3.3 km.
Counts describe active establishment records. They do not assess admissions, catchments or quality.