CM5 postcode area guide — Brentwood
House prices, crime, broadband speeds, mobile signal, schools and demographics for the CM5 postcode district in Brentwood — every official dataset on one page.
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Where is CM5?
Broadband & internet speeds in CM5
Excellent coverage
Superfast (30Mb+)
91.6%
Ultrafast (300Mb+)
88.3%
Gigabit-capable
88.3%
Below USO (10Mb)
0.2%
Broadband availability in the CM5 postcode district (Brentwood) is Excellent — gigabit-capable full fibre is widely available. Across the 431 postcodes Ofcom measures in CM5, superfast broadband (30 Mbit/s or faster) reaches 91.6% of premises and gigabit-capable lines are available to 88.3%.
Around 0.2% of premises in CM5 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 CM5
| Postcode | Superfast | Gigabit |
|---|---|---|
| CM5 0AA | 100% | 100% |
| CM5 0AB | 100% | 100% |
| CM5 0AD | 100% | 100% |
| CM5 0AE | 66.7% | 66.7% |
| CM5 0AF | 100% | 100% |
| CM5 0AG | 100% | 100% |
| CM5 0AH | 88.9% | 88.9% |
| CM5 0AJ | 43.5% | 43.5% |
| CM5 0AL | 93.3% | 93.3% |
| CM5 0AN | 80% | 80% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Brentwood
Ofcom's coverage model for the wider Brentwood district (36,919 premises):
4G indoors — all networks
92.6%
4G outdoors — all networks
100%
5G outdoors — all networks
60.1%
Voice indoors — all networks
96.4%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in CM5
Police recorded 22 incidents within about a mile of the centre of CM5 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 9 | 40.9% |
| Anti-social behaviour | 3 | 13.6% |
| Burglary | 3 | 13.6% |
| Public order | 3 | 13.6% |
| Other theft | 2 | 9.1% |
| Criminal damage & arson | 1 | 4.5% |
| Vehicle crime | 1 | 4.5% |
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 CM5
Based on 111 sales registered with HM Land Registry in the last 12 months, the median sold price in CM5 is £488,000, down 7.0% on the previous year (£525,000).
Detached
£750,000
24 sales
Semi-detached
£486,000
49 sales
Terraced
£505,000
12 sales
Flat / maisonette
£240,000
22 sales
Latest recorded sales in CM5
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 15 May 2026 | £300,000 | Flat | High Street | CM5 9FD |
| 6 May 2026 | £480,000 | Detached | The Gables | CM5 0GA |
| 30 Apr 2026 | £505,000 | Detached | Mayflower Way | CM5 9BA |
| 30 Apr 2026 | £946,500 | Detached | Norwood End | CM5 0RW |
| 10 Apr 2026 | £705,000 | Semi-detached | Elmbridge Hall | CM5 0TN |
| 7 Apr 2026 | £615,000 | Semi-detached | Kimpton Close | CM5 0BQ |
| 2 Apr 2026 | £580,000 | Detached | Rodney Road | CM5 9HN |
| 31 Mar 2026 | £485,000 | Semi-detached | King Street | CM5 9NS |
| 30 Mar 2026 | £1,005,000 | Detached | Pedlars End | CM5 0LW |
| 26 Mar 2026 | £340,000 | Flat | Walter Mead Close | CM5 0BW |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
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Who lives here? Brentwood demographics
Census 2021 figures for the wider Brentwood district (77,046 residents, 32,343 households):
| Age profile | |
|---|---|
| Under 15 | 18.4% |
| 15–29 | 21.5% |
| 30–44 | 19.5% |
| 45–64 | 20.4% |
| 65+ | 20.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 71.9% |
| Private rented | 16.1% |
| Social rented | 3.1% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around CM5
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| The Ongar Academy | Secondary | 11–18 | 467 | CM5 0AN |
| Chipping Ongar Primary School | Primary | 4–11 | 208 | CM5 9LA |
| Moreton Church of England Voluntary Aided Primary School | Primary | 4–11 | 191 | CM5 0JD |
| Ongar Primary School | Primary | 4–11 | 158 | CM5 0FF |
| High Ongar Primary School | Primary | 4–11 | 111 | CM5 9NB |
| Dr Walker's CofE Primary School | Primary | 4–11 | 50 | CM5 0RG |
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 CM5
82 rated food businesses operate in CM5. 57 hold the top rating of 5, 9 are rated 4, and 1 are rated 2 or below.
Among the 5-rated: ABC Nursery & Pre-School Ltd, AGTs, Anchor Fish and Chips, Ashlyn's Organics Ltd, Ashlyns Organics Limited.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in CM5
From a sample of 71 Energy Performance Certificates across 10 CM5 postcodes, the most common rating is band D (average band D). 38% of sampled homes are rated C or better.
Band B
7%
Band C
31%
Band D
32%
Band E
21%
Band F
7%
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 Brentwood
Landlines around CM5 typically use:
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What's it like living in CM5?
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Moving to CM5? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Brentwood — free, no-obligation quote.
Postcodes in CM5
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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.