AL9 postcode area guide — East Hertfordshire
House prices, crime, broadband speeds, mobile signal, schools and demographics for the AL9 postcode district in East Hertfordshire — every official dataset on one page.
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Where is AL9?
Broadband & internet speeds in AL9
Strong coverage
Superfast (30Mb+)
87.5%
Ultrafast (300Mb+)
61.2%
Gigabit-capable
59.6%
Below USO (10Mb)
0.1%
Broadband availability in the AL9 postcode district (East Hertfordshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 428 postcodes Ofcom measures in AL9, superfast broadband (30 Mbit/s or faster) reaches 87.5% of premises and gigabit-capable lines are available to 59.6%.
Around 0.1% of premises in AL9 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 AL9
| Postcode | Superfast | Gigabit |
|---|---|---|
| AL9 5AB | 100% | 0% |
| AL9 5AD | 100% | 100% |
| AL9 5AE | 100% | 25% |
| AL9 5AF | 100% | 100% |
| AL9 5AH | 100% | 0% |
| AL9 5AJ | 100% | 0% |
| AL9 5AL | 100% | 0% |
| AL9 5AN | 100% | 0% |
| AL9 5AP | 100% | 0% |
| AL9 5AR | 100% | 44.4% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around East Hertfordshire
Ofcom's coverage model for the wider East Hertfordshire district (71,670 premises):
4G indoors — all networks
87.2%
4G outdoors — all networks
98.8%
5G outdoors — all networks
27.7%
Voice indoors — all networks
90.2%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in AL9
Police recorded 6 incidents within about a mile of the centre of AL9 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 2 | 33.3% |
| Anti-social behaviour | 1 | 16.7% |
| Criminal damage & arson | 1 | 16.7% |
| Vehicle crime | 1 | 16.7% |
| Other crime | 1 | 16.7% |
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 AL9
Based on 99 sales registered with HM Land Registry in the last 12 months, the median sold price in AL9 is £580,000, up 0.9% on the previous year (£575,000).
Detached
£955,000
25 sales
Semi-detached
£665,950
28 sales
Terraced
£472,500
23 sales
Flat / maisonette
£255,000
18 sales
Latest recorded sales in AL9
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 15 May 2026 | £525,000 | Semi-detached | Pooleys Lane | AL9 7LF |
| 14 May 2026 | £468,000 | Semi-detached | Puttocks Drive | AL9 7LW |
| 12 May 2026 | £1,175,000 | Semi-detached | Home Farm Road | AL9 7TP |
| 29 Apr 2026 | £650,000 | Terraced | Bluebridge Road | AL9 7UN |
| 24 Apr 2026 | £745,000 | Semi-detached | Oaklands Avenue | AL9 7UJ |
| 24 Apr 2026 | £937,500 | Semi-detached | Westland Drive | AL9 7UQ |
| 24 Apr 2026 | £88,000 | Flat | Northcotts | AL9 5ES |
| 17 Apr 2026 | £540,000 | Terraced | Meadow Close | AL9 7NZ |
| 17 Apr 2026 | £750,000 | Semi-detached | Bluebridge Road | AL9 7UW |
| 17 Apr 2026 | £220,000 | Flat | North Drive | AL9 5EG |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? East Hertfordshire demographics
Census 2021 figures for the wider East Hertfordshire district (150,155 residents, 62,023 households):
| Age profile | |
|---|---|
| Under 15 | 19.3% |
| 15–29 | 21.1% |
| 30–44 | 20.5% |
| 45–64 | 20.9% |
| 65+ | 18.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 69.4% |
| Private rented | 16.1% |
| Social rented | 11.4% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around AL9
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Chancellor's School | Secondary | 11–18 | 1,241 | AL9 7BN |
| Queenswood School | Not applicable | 11–18 | 426 | AL9 6NS |
| Brookmans Park Primary School | Primary | 4–11 | 345 | AL9 7QY |
| The Ryde School | Primary | 4–11 | 191 | AL9 5DR |
| St Mary's Church of England VA Primary School, Welham Green | Primary | 4–11 | 137 | AL9 7NE |
| Essendon CofE (VC) Primary School | Primary | 3–11 | 77 | AL9 6HD |
| Rhodes Wood Hospital School | Not applicable | 7–19 | 35 | AL9 6NN |
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 AL9
82 rated food businesses operate in AL9. 54 hold the top rating of 5, 13 are rated 4, and 1 are rated 2 or below.
Among the 5-rated: Aroma Lounge, B&M Retail Ltd, BaxterStory Royal Vet College Hawkshead, Bengal Paradise, Bon Appetit.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in AL9
From a sample of 116 Energy Performance Certificates across 11 AL9 postcodes, the most common rating is band D (average band D). 47% of sampled homes are rated C or better.
Band B
7%
Band C
40%
Band D
41%
Band E
7%
Band F
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 East Hertfordshire
Landlines around AL9 typically use:
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What's it like living in AL9?
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Moving to AL9? Sort your connectivity first
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Postcodes in AL9
Neighbouring districts
All St Albans (AL) 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.
