SY21 postcode area guide — Powys
House prices, crime, broadband speeds, mobile signal, schools and demographics for the SY21 postcode district in Powys — every official dataset on one page.
Check any UK postcode
Where is SY21?
Broadband & internet speeds in SY21
Strong coverage
Superfast (30Mb+)
75.3%
Ultrafast (300Mb+)
50.4%
Gigabit-capable
50.4%
Below USO (10Mb)
6.3%
Broadband availability in the SY21 postcode district (Powys) is Strong — superfast is near-universal and gigabit is rolling out. Across the 864 postcodes Ofcom measures in SY21, superfast broadband (30 Mbit/s or faster) reaches 75.3% of premises and gigabit-capable lines are available to 50.4%.
Around 6.3% of premises in SY21 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in SY21
| Postcode | Superfast | Gigabit |
|---|---|---|
| SY21 0AA | 100% | 0% |
| SY21 0AB | 0% | 0% |
| SY21 0AD | 0% | 0% |
| SY21 0AE | 0% | 0% |
| SY21 0AF | 0% | 0% |
| SY21 0AG | 0% | 0% |
| SY21 0AH | 0% | 0% |
| SY21 0AJ | 0% | 0% |
| SY21 0AL | 0% | 0% |
| SY21 0AN | 0% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Powys
Ofcom's coverage model for the wider Powys district (71,508 premises):
4G indoors — all networks
75.4%
4G outdoors — all networks
92.7%
5G outdoors — all networks
—
Voice indoors — all networks
79.7%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
House prices in SY21
Based on 127 sales registered with HM Land Registry in the last 12 months, the median sold price in SY21 is £235,000, down 4.1% on the previous year (£245,000).
Detached
£330,000
49 sales
Semi-detached
£185,000
38 sales
Terraced
£175,100
22 sales
Latest recorded sales in SY21
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 18 May 2026 | £150,000 | Terraced | SY21 0NR | |
| 5 May 2026 | £275,000 | Semi-detached | Oldcastle Avenue | SY21 9PA |
| 16 Apr 2026 | £255,000 | Semi-detached | Oldcastle Avenue | SY21 9PA |
| 10 Apr 2026 | £400,000 | Other | SY21 8AY | |
| 10 Apr 2026 | £185,000 | Other | SY21 9HW | |
| 27 Mar 2026 | £162,000 | Semi-detached | Little Henfaes Drive | SY21 7BA |
| 27 Mar 2026 | £370,000 | Detached | SY21 0BH | |
| 25 Mar 2026 | £267,500 | Terraced | Park Terrace | SY21 7LL |
| 20 Mar 2026 | £85,000 | Detached | SY21 8LX | |
| 13 Mar 2026 | £340,000 | Detached | SY21 0BH |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Powys demographics
Census 2021 figures for the wider Powys district (133,170 residents, 60,182 households):
| Age profile | |
|---|---|
| Under 15 | 15.5% |
| 15–29 | 18% |
| 30–44 | 15.5% |
| 45–64 | 23.1% |
| 65+ | 27.9% |
| Housing tenure | |
|---|---|
| Owner-occupied | 67.6% |
| Private rented | 18.1% |
| Social rented | 5.3% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around SY21
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| The Henslow and Evolution School | Not applicable | 5–18 | 30 | SY21 8FF |
| Berriew C.P. School | Not applicable | — | — | SY21 8BA |
| Leighton C.P. School | Not applicable | — | — | SY21 8HH |
| Guilsfield C.P. School | Not applicable | — | — | SY21 9ND |
| Buttington Trewern C.P. School | Not applicable | — | — | SY21 8TB |
| Forden C.I.W. School | Not applicable | — | — | SY21 8NE |
| Welshpool High School | Not applicable | — | — | SY21 7RE |
| Amberleigh Residential Therapeutic School | Not applicable | — | — | SY21 9AF |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in SY21
226 rated food businesses operate in SY21. 143 hold the top rating of 5, 44 are rated 4, and 7 are rated 2 or below.
Among the 5-rated: 1st Clives Own Welshpool Scout, 7 Days, Alan Davies Butchers, Aldi Stores Ltd, Andrew Logan Museum of Sculpture.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in SY21
From a sample of 67 Energy Performance Certificates across 10 SY21 postcodes, the most common rating is band D (average band D). 19% of sampled homes are rated C or better.
Band B
3%
Band C
16%
Band D
55%
Band E
12%
Band F
7%
Band G
6%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Powys
Landlines around SY21 typically use:
Had a call from an unknown number? Use our free UK phone number checker to see who called.
What's it like living in SY21?
Be the first to rate SY21 (Powys).
How would you rate living in SY21 (Powys)?
Moving to SY21? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Powys — free, no-obligation quote.
Postcodes in SY21
Neighbouring districts
All Shrewsbury (SY) postcode districts ›
Frequently asked questions
Where is the SY21 postcode?
How much do houses cost in SY21?
What broadband can I get in SY21?
Who lives in SY21?
How energy efficient are homes in SY21?
Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.