SN3 postcode area guide — Swindon
House prices, crime, broadband speeds, mobile signal, schools and demographics for the SN3 postcode district in Swindon — every official dataset on one page.
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Where is SN3?
Broadband & internet speeds in SN3
Excellent coverage
Superfast (30Mb+)
96.4%
Ultrafast (300Mb+)
94.6%
Gigabit-capable
94.6%
Below USO (10Mb)
0.2%
Broadband availability in the SN3 postcode district (Swindon) is Excellent — gigabit-capable full fibre is widely available. Across the 1,240 postcodes Ofcom measures in SN3, superfast broadband (30 Mbit/s or faster) reaches 96.4% of premises and gigabit-capable lines are available to 94.6%.
Around 0.2% of premises in SN3 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 SN3
| Postcode | Superfast | Gigabit |
|---|---|---|
| SN3 0AD | 100% | 100% |
| SN3 0AE | 100% | 100% |
| SN3 0AF | 100% | 100% |
| SN3 0AJ | 100% | 100% |
| SN3 0AL | 100% | 100% |
| SN3 0AN | 100% | 100% |
| SN3 0AP | 100% | 100% |
| SN3 0AQ | 100% | 100% |
| SN3 0AS | 100% | 100% |
| SN3 1AA | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Swindon
Ofcom's coverage model for the wider Swindon district (106,049 premises):
4G indoors — all networks
94.3%
4G outdoors — all networks
99.9%
5G outdoors — all networks
92.2%
Voice indoors — all networks
97.9%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in SN3
Police recorded 269 incidents within about a mile of the centre of SN3 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 121 | 45.0% |
| Anti-social behaviour | 57 | 21.2% |
| Public order | 22 | 8.2% |
| Criminal damage & arson | 17 | 6.3% |
| Other theft | 12 | 4.5% |
| Other crime | 10 | 3.7% |
| Shoplifting | 9 | 3.3% |
| Drugs | 6 | 2.2% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in SN3
Based on 567 sales registered with HM Land Registry in the last 12 months, the median sold price in SN3 is £290,000, down 1.7% on the previous year (£295,000).
Detached
£442,500
100 sales
Semi-detached
£306,800
221 sales
Terraced
£250,000
195 sales
Flat / maisonette
£144,000
47 sales
Latest recorded sales in SN3
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 21 May 2026 | £229,400 | Terraced | Wagtail Close | SN3 5BL |
| 18 May 2026 | £365,000 | Semi-detached | Martinfield | SN3 5BA |
| 15 May 2026 | £285,000 | Terraced | Garfield Close | SN3 6BZ |
| 15 May 2026 | £303,000 | Terraced | Cameron Close | SN3 4PF |
| 15 May 2026 | £312,500 | Semi-detached | Hill View Road | SN3 4HZ |
| 15 May 2026 | £270,000 | Semi-detached | Rowden Close | SN3 6DJ |
| 13 May 2026 | £235,000 | Terraced | Cranmore Avenue | SN3 2EW |
| 8 May 2026 | £325,000 | Semi-detached | Beddington Court | SN3 4UN |
| 8 May 2026 | £340,000 | Terraced | Walcot Road | SN3 1BH |
| 8 May 2026 | £275,000 | Semi-detached | White Edge Moor | SN3 6LZ |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Swindon demographics
Census 2021 figures for the wider Swindon district (233,411 residents, 95,861 households):
| Age profile | |
|---|---|
| Under 15 | 19.8% |
| 15–29 | 23.2% |
| 30–44 | 21.4% |
| 45–64 | 19.7% |
| 65+ | 15.9% |
| Housing tenure | |
|---|---|
| Owner-occupied | 63.7% |
| Private rented | 19.5% |
| Social rented | 5.4% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around SN3
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| St Joseph's Catholic College | Secondary | 11–16 | 1,425 | SN3 3LR |
| Lawn Manor Academy | Secondary | 11–16 | 969 | SN3 1ER |
| The Dorcan Academy | Secondary | 11–16 | 881 | SN3 5DA |
| Goddard Park Community Primary School | Primary | 3–11 | 518 | SN3 2QN |
| Lawn Primary and Nursery School | Primary | 2–11 | 468 | SN3 1LE |
| The Croft Primary School | Primary | 4–11 | 418 | SN3 1RA |
| Badbury Park Primary School | Primary | 3–11 | 397 | SN3 6ER |
| Liden Academy | Primary | 0–11 | 395 | SN3 6EX |
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 SN3
214 rated food businesses operate in SN3. 163 hold the top rating of 5, 22 are rated 4, and 4 are rated 2 or below.
Among the 5-rated: Accent Catering Services Ltd (c/o Honda Logistics), Aldi Stores Ltd, Ali's Kebab, Andy's Kebabs And Fish And Chips, Aramark (C/o New College Swindon).
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in SN3
From a sample of 246 Energy Performance Certificates across 12 SN3 postcodes, the most common rating is band C (average band C). 60% of sampled homes are rated C or better.
Band A
2%
Band B
22%
Band C
36%
Band D
32%
Band E
7%
Band F
1%
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 Swindon
Landlines around SN3 typically use:
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What's it like living in SN3?
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Postcodes in SN3
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Frequently asked questions
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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.