SP4 postcode area guide — Test Valley

Where is SP4?

Broadband & internet speeds in SP4

Strong coverage

Broadband availability in the SP4 postcode district (Test Valley) is Strong — superfast is near-universal and gigabit is rolling out. Across the 1,087 postcodes Ofcom measures in SP4, superfast broadband (30 Mbit/s or faster) reaches 92.8% of premises and gigabit-capable lines are available to 65%.

Around 0.4% of premises in SP4 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 SP4

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Test Valley

Ofcom's coverage model for the wider Test Valley district (62,117 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in SP4

Police recorded 86 incidents within about a mile of the centre of SP4 in May 2026 (latest published street-level data). The breakdown:

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 SP4

Based on 294 sales registered with HM Land Registry in the last 12 months, the median sold price in SP4 is £330,000, up 2.5% on the previous year (£322,000).

Latest recorded sales in SP4

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Test Valley demographics

Census 2021 figures for the wider Test Valley district (130,492 residents, 54,706 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around SP4

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 SP4

191 rated food businesses operate in SP4. 148 hold the top rating of 5, 13 are rated 4, and 3 are rated 2 or below.

Among the 5-rated: A Date with Thyme, Acorn @ Avon Valley Academy, Acorn@Bulford C Of E Infant and Primary, Acorn@St Michaels C of E Primary, Aldi.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in SP4

From a sample of 183 Energy Performance Certificates across 11 SP4 postcodes, the most common rating is band C (average band C). 55% of sampled homes are rated C or better.

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 Test Valley

Landlines around SP4 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 SP4?

Postcodes in SP4

Neighbouring districts

All Salisbury (SP) postcode districts ›

Frequently asked questions

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.