CM4 postcode area guide — Basildon
House prices, crime, broadband speeds, mobile signal, schools and demographics for the CM4 postcode district in Basildon — every official dataset on one page.
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Where is CM4?
Broadband & internet speeds in CM4
Strong coverage
Superfast (30Mb+)
90.1%
Ultrafast (300Mb+)
45%
Gigabit-capable
45%
Below USO (10Mb)
0.1%
Broadband availability in the CM4 postcode district (Basildon) is Strong — superfast is near-universal and gigabit is rolling out. Across the 416 postcodes Ofcom measures in CM4, superfast broadband (30 Mbit/s or faster) reaches 90.1% of premises and gigabit-capable lines are available to 45%.
Around 0.1% of premises in CM4 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 CM4
| Postcode | Superfast | Gigabit |
|---|---|---|
| CM4 0AA | 100% | 100% |
| CM4 0AB | 100% | 59.3% |
| CM4 0AD | 100% | 89.2% |
| CM4 0AE | 95.2% | 95.2% |
| CM4 0AF | 100% | 88.5% |
| CM4 0AG | 100% | 100% |
| CM4 0AH | 100% | 87.8% |
| CM4 0AJ | 100% | 37.2% |
| CM4 0AL | 100% | 3.2% |
| CM4 0AN | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Basildon
Ofcom's coverage model for the wider Basildon district (85,060 premises):
4G indoors — all networks
94.7%
4G outdoors — all networks
100%
5G outdoors — all networks
82.4%
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 CM4
Police recorded 9 incidents within about a mile of the centre of CM4 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Vehicle crime | 4 | 44.4% |
| Drugs | 1 | 11.1% |
| Other theft | 1 | 11.1% |
| Shoplifting | 1 | 11.1% |
| Theft from the person | 1 | 11.1% |
| Other crime | 1 | 11.1% |
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 CM4
Based on 150 sales registered with HM Land Registry in the last 12 months, the median sold price in CM4 is £650,000, down 7.8% on the previous year (£705,000).
Detached
£910,000
69 sales
Semi-detached
£605,000
37 sales
Terraced
£545,000
19 sales
Flat / maisonette
£320,000
15 sales
Latest recorded sales in CM4
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 7 May 2026 | £825,000 | Detached | Barrington Place | CM4 9TL |
| 6 May 2026 | £749,500 | Other | Pine Drive | CM4 9EF |
| 6 May 2026 | £749,500 | Other | Pine Drive | CM4 9EF |
| 27 Apr 2026 | £530,000 | Detached | Austen Drive | CM4 9FB |
| 27 Apr 2026 | £1,740,000 | Detached | Whites Hill | CM4 9QB |
| 17 Apr 2026 | £995,000 | Detached | Swan Lane | CM4 9BQ |
| 16 Apr 2026 | £540,000 | Semi-detached | Maldon Road | CM4 9JG |
| 9 Apr 2026 | £830,000 | Detached | Little Ridings Lane | CM4 0FR |
| 31 Mar 2026 | £440,000 | Terraced | Hare Bridge Crescent | CM4 9DR |
| 27 Mar 2026 | £545,000 | Semi-detached | Heybridge Road | CM4 9AQ |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Basildon demographics
Census 2021 figures for the wider Basildon district (187,571 residents, 76,363 households):
| Age profile | |
|---|---|
| Under 15 | 20.7% |
| 15–29 | 23.4% |
| 30–44 | 19.8% |
| 45–64 | 19.1% |
| 65+ | 17% |
| Housing tenure | |
|---|---|
| Owner-occupied | 63.3% |
| Private rented | 14.4% |
| Social rented | 7.4% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around CM4
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Anglo European School | Secondary | 11–19 | 1,533 | CM4 0DJ |
| Stock Church of England Primary School | Primary | 4–11 | 202 | CM4 9BQ |
| Ingatestone and Fryerning Church of England Junior School | Primary | 7–11 | 189 | CM4 0AL |
| Blackmore Primary School | Primary | 4–11 | 166 | CM4 0QR |
| Ingatestone Infant School | Primary | 4–7 | 127 | CM4 0DF |
| Margaretting Church of England Voluntary Controlled Primary School | Primary | 4–11 | 70 | CM4 0HA |
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 CM4
89 rated food businesses operate in CM4. 71 hold the top rating of 5, 7 are rated 4, and 1 are rated 2 or below.
Among the 5-rated: :ROSEBANK NURSING HOMES LTD T/A Ardtully Retirement Residenc, AQ Cuisine, Ariana Gardens, Bakers Arms, Baptist Church.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in CM4
From a sample of 140 Energy Performance Certificates across 12 CM4 postcodes, the most common rating is band D (average band D). 26% of sampled homes are rated C or better.
Band B
9%
Band C
18%
Band D
51%
Band E
14%
Band F
9%
Band G
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 Basildon
Landlines around CM4 typically use:
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What's it like living in CM4?
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Moving to CM4? Sort your connectivity first
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Postcodes in CM4
Neighbouring districts
All Chelmsford (CM) postcode districts ›
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.