SY21 8DS

Trelystan and Trewern · Powys · Wales

Updated September 2026

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Location overview

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Post town: Welshpool
Ward: Trelystan and Trewern
Local authority: Powys
Constituency: Montgomeryshire and Glyndwr
Postcode district: SY21
Postcode sector: SY21 8

Nearby postcodes

Nearby postcode distances
Postcode	Distance
SY21 8DR	128 m
SY21 8SY	130 m
SY21 8TB	154 m
SY21 8FL	194 m
SY21 8TA	336 m

Complete postcode fields and official codes

Postcode: SY21 8DS
Status: Current
Introduced: 1 July 1990
Terminated: Not published
Postcode area: SY
Postcode district: SY21
Postcode sector: SY21 8
Latitude: 52.687300
Longitude: -3.077517
British National Grid easting: 327,262
British National Grid northing: 310,500

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: W00002656
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

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records

130 recorded sales at this postcode

Address	Date	Price
90, Parc Caradog, Trewern, Welshpool, SY21 8DS	12 December 2025	£182,500
45, Parc Caradog, Trewern, Welshpool, SY21 8DS	23 August 2024	£215,000
28, Parc Caradog, Trewern, Welshpool, SY21 8DS	23 August 2024	£242,500

Schools

Within 3.1 miles of this postcode

View all nearby schools

Open schools: 2
Primary: 0
Secondary: 0

Buttington Trewern C.P. School

Welsh establishment
152 m
Welshpool High School

Welsh establishment
4.7 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records

Published events: 65
Months covered: 12
Latest month: June 2026

Most recorded categories in this period

Violence and sexual offences 44
Public order 7
Burglary 4
Anti social behaviour 4
Criminal damage and arson 4

Census 2021

Population and age profile

Postcode residents: 155
Postcode households: 62
Residents per household: 2.5
SY21 8 residents: 4,734

Age bands in SY21 8

Wider postcode sector

Age 0 to 14: 13.4%
Age 15 to 24: 10.4%
Age 25 to 44: 18.7%
Age 45 to 64: 30%
Age 65 and over: 27.5%

This postcode contained 3.3% of the sector's usual residents on Census Day. The age profile describes the wider SY21 8 sector, not people in this individual postcode.

How to read these estimates

The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+: 0%
Ultrafast, 300 Mbit/s+: 0%
Gigabit-capable: 0%

Unable to receive decent fixed or FWA broadband: 0%
Next Generation Access: 100%
Decent broadband available from fixed wireless: 83.9%

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

Nearby transport

Little Chef

BCT · Cefn
0.1 miles
Trewern Bus Shelter

BCT · Trewern
0.6 miles
Criggion Lane

BCT · Trewern
0.6 miles
Heldre Turn

BCT · Buttington
0.9 miles
Heldre Turn

BCT · Buttington
0.9 miles

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £200,000 from 9 recorded sales in SY21 8DS. 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.

Schools

Published establishments

2 open schools are in scope, including 0 primary and 0 secondary schools. Buttington Trewern C.P. School is the nearest published school at 152 m.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

65 published events cover 12 months, averaging 5.417 events per published month. The largest recorded category is Violence and sexual offences with 44 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.