Chiswell Green

Chiswell Green is covered by postcode district AL2. It is in the St Albans council area, Hertfordshire.

Every postcode in Chiswell Green, and which are new since 2020

Map of every postcode in Chiswell Green, by new since 2020 Of the 216 postcodes in Chiswell Green that ONS places, 7 are new since 2020 and 209 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Chiswell Green. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A405A414M25A5183 AL2 2AB: before 2020AL2 2AD: before 2020AL2 2AE: before 2020AL2 2AF: before 2020AL2 2AH: before 2020AL2 2AJ: before 2020AL2 2AL: before 2020AL2 2AN: before 2020AL2 2AP: before 2020AL2 2AQ: before 2020AL2 2AR: before 2020AL2 2AS: before 2020AL2 2AT: before 2020AL2 2AU: before 2020AL2 2AW: before 2020AL2 2AX: before 2020AL2 2AY: before 2020AL2 2AZ: before 2020AL2 2BA: before 2020AL2 2BB: before 2020AL2 2BD: before 2020AL2 2BE: before 2020AL2 2BG: before 2020AL2 2BH: before 2020AL2 2BJ: before 2020AL2 2BL: before 2020AL2 2BN: before 2020AL2 2BQ: before 2020AL2 2DJ: before 2020AL2 2DP: before 2020AL2 2DS: before 2020AL2 2DW: before 2020AL2 2EA: before 2020AL2 2FJ: before 2020AL2 2FN: before 2020AL2 2GZ: before 2020AL2 2HD: before 2020AL2 2HE: before 2020AL2 2HF: before 2020AL2 2HG: before 2020AL2 2HH: before 2020AL2 2HJ: before 2020AL2 2HL: before 2020AL2 2HN: before 2020AL2 2HP: before 2020AL2 2HQ: before 2020AL2 2HR: before 2020AL2 2HS: before 2020AL2 2HT: before 2020AL2 2HU: before 2020AL2 2HW: before 2020AL2 2HX: before 2020AL2 2HY: before 2020AL2 2HZ: before 2020AL2 2JA: before 2020AL2 2JB: before 2020AL2 2JD: before 2020AL2 2JF: before 2020AL2 2JG: before 2020AL2 2JH: before 2020AL2 2JJ: before 2020AL2 2JL: before 2020AL2 2JN: before 2020AL2 2JQ: before 2020AL2 2LJ: before 2020AL2 2QE: before 2020AL2 2QF: before 2020AL2 2QG: before 2020AL2 2QH: before 2020AL2 2QJ: before 2020AL2 2QL: before 2020AL2 2QN: before 2020AL2 2QP: before 2020AL2 2QQ: before 2020AL2 2QR: before 2020AL2 2QS: before 2020AL2 2QT: before 2020AL2 2QU: before 2020AL2 2QW: before 2020AL2 2QX: before 2020AL2 2QY: before 2020AL2 2QZ: before 2020AL2 2RA: before 2020AL2 2RB: before 2020AL2 2RD: before 2020AL2 2RE: before 2020AL2 2RF: before 2020AL2 2RH: before 2020AL2 2RP: before 2020AL2 2RR: before 2020AL2 2RS: before 2020AL2 2RT: before 2020AL2 2RU: before 2020AL2 2RW: before 2020AL2 2RX: before 2020AL2 2RY: before 2020AL2 2RZ: before 2020AL2 2SA: before 2020AL2 2SB: before 2020AL2 2SD: before 2020AL2 2SE: before 2020AL2 2SF: before 2020AL2 2SG: before 2020AL2 2SH: before 2020AL2 2SJ: before 2020AL2 2SL: before 2020AL2 2SN: before 2020AL2 2SP: before 2020AL2 2SQ: before 2020AL2 2TB: before 2020AL2 2TS: before 2020AL2 2TT: before 2020AL2 2TU: before 2020AL2 2TX: before 2020AL2 2TY: before 2020AL2 2TZ: before 2020AL2 3AA: before 2020AL2 3AB: before 2020AL2 3AD: before 2020AL2 3AE: before 2020AL2 3AF: before 2020AL2 3AG: before 2020AL2 3AH: before 2020AL2 3AJ: before 2020AL2 3AL: before 2020AL2 3AN: before 2020AL2 3AP: before 2020AL2 3AQ: before 2020AL2 3AR: before 2020AL2 3AS: before 2020AL2 3AT: before 2020AL2 3AW: before 2020AL2 3AX: before 2020AL2 3AY: before 2020AL2 3AZ: before 2020AL2 3BA: before 2020AL2 3BB: before 2020AL2 3BD: before 2020AL2 3BE: before 2020AL2 3BG: before 2020AL2 3BH: before 2020AL2 3BJ: before 2020AL2 3BN: before 2020AL2 3BQ: before 2020AL2 3BY: before 2020AL2 3DA: before 2020AL2 3DB: before 2020AL2 3DD: before 2020AL2 3DE: before 2020AL2 3DF: before 2020AL2 3DG: before 2020AL2 3DH: before 2020AL2 3DJ: before 2020AL2 3DL: before 2020AL2 3DN: before 2020AL2 3DP: before 2020AL2 3DQ: before 2020AL2 3DR: before 2020AL2 3DS: before 2020AL2 3DT: before 2020AL2 3DU: before 2020AL2 3DW: before 2020AL2 3DY: before 2020AL2 3DZ: before 2020AL2 3EA: before 2020AL2 3EB: before 2020AL2 3ED: before 2020AL2 3EE: before 2020AL2 3EF: before 2020AL2 3EH: before 2020AL2 3EJ: before 2020AL2 3EN: before 2020AL2 3EQ: before 2020AL2 3EZ: before 2020AL2 3HA: before 2020AL2 3HB: before 2020AL2 3HD: before 2020AL2 3HE: before 2020AL2 3HF: before 2020AL2 3HG: before 2020AL2 3HH: before 2020AL2 3HJ: before 2020AL2 3HL: before 2020AL2 3HN: before 2020AL2 3HP: before 2020AL2 3HQ: before 2020AL2 3HR: before 2020AL2 3HS: before 2020AL2 3HT: before 2020AL2 3HU: before 2020AL2 3HW: before 2020AL2 3HX: before 2020AL2 3HY: before 2020AL2 3HZ: before 2020AL2 3JE: before 2020AL2 3JX: before 2020AL2 3JY: before 2020AL2 3JZ: before 2020AL2 3LA: before 2020AL2 3LB: before 2020AL2 3LD: before 2020AL2 3LF: before 2020AL2 3NP: before 2020AL2 3RR: before 2020AL2 3TB: before 2020AL2 3TD: before 2020AL2 3TE: before 2020AL2 3TF: before 2020AL2 3TN: before 2020AL2 2DT: new since 2020AL2 2DX: new since 2020AL2 2EE: new since 2020AL2 2EF: new since 2020AL2 2EH: new since 2020AL2 2FQ: new since 2020AL2 2FR: new since 2020 Chiswell Green 5 new postcodes since 2020, outlined: this goes to AL2 2DT, the newest of them5 new postcodes since 2020 Map of every postcode in Chiswell Green, by new since 2020 Of the 216 postcodes in Chiswell Green that ONS places, 7 are new since 2020 and 209 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Chiswell Green. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A405A414 Chiswell Green 5 new postcodes since 2020, outlined: this goes to AL2 2DT, the newest of them5 new postcodes since 2020
  • New since 2020: 7
  • In use before 2020: 209
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 216 postcodes in Chiswell Green that ONS places, 7 are new since 2020 and 209 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn.

The middle of its postcodes: latitude 51.7225, longitude -0.3546. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.

Where the new postcodes lie together

What is it like to live in Chiswell Green?

Homes sold for a typical £687,500 in the 12 months to September 2026. At 193 of the 211 postcodes Ofcom reports on, every home and business can get gigabit broadband. None of its 216 postcodes is on the Environment Agency's list of those with a home or business at risk of flooding from rivers or the sea. It has 2 primary schools at its postcodes. One GP practice is at its postcodes. The nearest railway station is How Wood (Herts), 850 metres from the middle of its postcodes in a straight line.

We don't rate places; here are the figures so you can judge.

Sources: HM Land Registry Price Paid Data; Ofcom Connected Nations; Environment Agency flood risk; Get Information about Schools; NHS GP practices; NaPTAN. Each figure is from a section of this page, which gives its date.

What do homes cost in Chiswell Green?

Homes in Chiswell Green sold for a typical £687,500 in the 12 months to September 2026, across 76 sales, HM Land Registry's figures show. The 12 months before gave £680,000 from 83 sales: not a change larger than chance would explain, given which homes happened to sell.

£687,500 typical price, the 12 months to September 2026
£680,000 12 months to September 2025
  • Detached £760,000 37 sales
  • Semi-detached £645,000 25 sales
  • Terraced £472,500 12 sales
  • Flat or maisonette 2 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Across the whole AL2 district, Chiswell Green's main postcode district: a typical £540,000.

Sales at the postcodes ONS places in Chiswell Green: standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 October 2026.

Are new homes being built in Chiswell Green?

7 of the 216 postcodes now in use in Chiswell Green came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 0 of the 83 homes sold in Chiswell Green were newly built (0%), HM Land Registry's records show; across the AL2 district, 4%.

The newest postcodes

A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.

New homes among the homes sold

PeriodIn Chiswell GreenAcross the AL2 district
The 12 months to September 2026 0 of 76 (0%) 2 of 255 (Under 1%)
The 12 months to September 2025 0 of 83 (0%) 13 of 347 (4%)

Standard sales of homes at market value that HM Land Registry marks as newly built. New homes take longer to be registered than other sales, so the latest 12 months count fewer of them than were sold. A share is given from 5 sales or more.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; HM Land Registry Price Paid Data, files dated 28 October 2026.

What broadband can you get in Chiswell Green?

Ofcom reports on 211 of the 216 postcodes in Chiswell Green. At 193 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit193 of 211
Postcodes where every home can get superfast208 of 211

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.

Is Chiswell Green at risk of flooding?

None of the 216 postcodes in Chiswell Green is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency flood risk, published 6 July 2026.

Which schools are in Chiswell Green?

The primary schools are at the postcodes in Chiswell Green. There is no secondary school at its postcodes; these are the nearest to its middle. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules. Special schools and alternative provision, which children join by referral, are not listed.

An orange bar: the school has as many pupils as places, or more (Department for Education's figures).

Find and compare schools in England, on GOV.UK

Source: Get Information about Schools, read 17 October 2026. Each school opens its own record there.

How far is the station from Chiswell Green?

The nearest railway station to the centre point of the postcodes in Chiswell Green is How Wood (Herts) Rail Station, 850 m away in a straight line.

  • How Wood (Herts) Rail Station Railway station 850 mWalk
  • Park Street Rail Station Railway station 1.0 kmWalk
  • Bricket Wood Rail Station Railway station 1.9 kmCycle

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

Straight-line distances from the middle of the postcodes, not routes. Each postcode page lists its own nearest stations and bus stops. The Department for Transport's register does not say how often services run.

Source: NaPTAN, read 17 October 2026.

Which GP surgeries are in Chiswell Green?

The GP practices at the postcodes in Chiswell Green. Each practice sets the area it takes patients from, so check with it before registering.

Find a GP on the NHS website

Sources: NHS GP practices, read 17 October 2026; Care Quality Commission, ratings of 1 October 2026.

Is Chiswell Green safe? Crime recorded around it

Police.uk records 646 crimes and reports of anti-social behaviour within a mile of the middle of the postcodes in Chiswell Green over the 12 months from September 2025 to August 2026. August 2026 is the latest month it has published. These are counts, not a rate: we hold no count of the people who live, work or pass through, so we do not say whether a place is safe.

Each month, September 2025 to August 2026

  1. 41 September 2025
  2. 34 October 2025
  3. 46 November 2025
  4. 57 December 2025
  5. 55 January 2026
  6. 38 February 2026
  7. 59 March 2026
  8. 57 April 2026
  9. 60 May 2026
  10. 64 June 2026
  11. 62 July 2026
  12. 73 August 2026

By kind, over the 12 months

Violence and sexual offences174 reports
Anti-social behaviour120 reports
Other theft118 reports
Vehicle crime56 reports
Shoplifting54 reports
Criminal damage and arson29 reports
Public order28 reports
Burglary28 reports

Also: other crime 13, drugs 11, robbery 7, theft from the person 4, possession of weapons 3, bicycle theft 1.

Police.uk says its locations "always represent the approximate location of a crime". Each crime is moved to the nearest of a fixed list of map points, each over a street centre, a public place or a commercial premises, chosen so that every point covers at least eight addresses or none. A mile is a wide circle: in a town it takes in the centre and its shops, where much crime is recorded.

Crime around one postcode

Source: police.uk, data to August 2026, from its download of 30 September 2026.

Who runs Chiswell Green?

District, borough or city council
St Albans
County council
Hertfordshire
Parliamentary constituencies
St Albans (214) and Harpenden and Berkhamsted (2)
Police force area
Hertfordshire
Region
East of England
Country
England

Where the place crosses a boundary, a row lists each side with its number of postcodes. Check a postcode for its own. What council am I in?

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Moving to Chiswell Green

Who to tell and what to sort out in your first week.

Chiswell Green postcodes

216 postcodes in use in Chiswell Green, by district:

That district is in the AL postcode area.

Check a Chiswell Green postcode

Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.

Do not know the postcode? What is my postcode?

Places near Chiswell Green

With the typical price of a home in each, to set beside Chiswell Green's £687,500. Distances are straight lines between the middles of each place's postcodes.

Quick answers about Chiswell Green

What is the postcode for Chiswell Green?
Postcode district AL2, with 216 postcodes in use. Source: ONS.
Which council is Chiswell Green in?
St Albans, with Hertfordshire as its county council. Source: ONS.
How much are houses in Chiswell Green?
A typical £687,500 in the 12 months to September 2026, from 76 sales. Source: HM Land Registry.
What schools are in Chiswell Green?
Primary schools at its postcodes include How Wood Primary and Nursery School and Killigrew Primary and Nursery School; the nearest secondary school to the middle of its postcodes is The Marlborough Science Academy, 1.8 km away. Source: Department for Education.
Does Chiswell Green have a railway station?
Yes: How Wood (Herts) station, 850 metres from the middle of its postcodes in a straight line. Source: Department for Transport.
What broadband can you get in Chiswell Green?
Ofcom reports on 211 of the 216 postcodes in Chiswell Green. At 193 of them every home and business can get gigabit broadband. Source: Ofcom.
Is Chiswell Green at risk of flooding?
None of the 216 postcodes in Chiswell Green is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea. River and sea risk for the land, not surface water. Source: Environment Agency.
Are new homes being built in Chiswell Green?
7 of the 216 postcodes now in use in Chiswell Green came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 0 of the 83 homes sold in Chiswell Green were newly built (0%), HM Land Registry's records show; across the AL2 district, 4%. Source: ONS and HM Land Registry.

Where the facts on this page come from

Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0. This uses Care Quality Commission information.

Licence: Open Government Licence v3.0.

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