Harpenden · AL5

EPC in AL5 (Harpenden)? We'll point you the right way.

Covering Harpenden, including Caddington, Harpenden East, Harpenden North & Rural. Find accredited domestic energy assessors nearby.

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How to check an EPC assessor is registered: GOV.UK: get a new energy certificate · GOV.UK: find an energy certificate.

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AL5 (Harpenden) in a nutshell

AL5 covers Harpenden, in Central Bedfordshire and St Albans. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for AL5

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Two councils in one district

AL5 is split between Central Bedfordshire and St Albans. Some councils run their own landlord licensing, so check which one your home is in.

Where's this from?postcodes.io (ONSPD) local authority
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Give your full postcode

AL5 stretches across Caddington, Harpenden East, Harpenden North & Rural and more, so give your full postcode, not just 'AL5', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Lots of detached homes

Harpenden has plenty of detached houses. More outside walls means insulation counts for a lot on your rating, so dig out any loft or cavity paperwork.

Where's this from?ONS Census 2021, Harpenden: 39.4% detached
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New to EPCs? Here's what to expect, how to get ready and what it costs, in plain English. Read the quick guide →

England landlord rules: quick version

  • When you let: you need a valid EPC, usually good for 10 years.
  • Minimum E: most private lets need E or better, unless exempt.

Always double-check on GOV.UK.

Next door to AL5

AL3 · St AlbansAL1 · St AlbansAL4 · St AlbansAL2 · St AlbansLU2 · Luton – EastLU1 · Luton – South

all areas

Frequently asked questions

Which areas does AL5 cover?

AL5 (Harpenden) includes the wards of Caddington, Harpenden East, Harpenden North & Rural, Harpenden South, Harpenden West, Hill End, Redbourn, Sandridge & Wheathampstead (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to AL5?

Neighbouring districts include AL3 (St Albans), AL1 (St Albans), AL4 (St Albans), AL2 (St Albans), LU2 (Luton – East) (ONS Postcode Directory via Doogal). A pro covering AL5 may well cover these too, so it's worth asking.

How many homes are in AL5?

About 11,672 households and 30,486 residents at the 2011 Census, across 1,058 active postcodes (Doogal / ONS Postcode Directory).

Which council area is AL5 in?

AL5 sits in Central Bedfordshire, St Albans (postcodes.io). Parliamentary constituency: Harpenden and Berkhamsted, Luton South and South Bedfordshire, St Albans.

📊 The numbers behind this page
Postcode district
AL5 1
Areas covered
Harpenden 2
Active postcodes
1,058 3
Households (2011 Census, via Doogal)
11,672 2
Population (2011 Census, via Doogal)
30,486 2
Electoral wards
Caddington, Harpenden East, Harpenden North & Rural, Harpenden South, Harpenden West, Hill End, Redbourn, Sandridge & Wheathampstead 4
Parliamentary constituencies
Harpenden and Berkhamsted, Luton South and South Bedfordshire, St Albans 4
Local authority
Central Bedfordshire, St Albans 4
Households privately renting (Harpenden built-up area)
13.7% 5
  1. ONS Postcode Directory
  2. Doogal
  3. Doogal / ONSPD
  4. postcodes.io
  5. ONS Census 2021

Made with open data. See where it all comes from. Updated 26 October 2026.