Portsmouth · PO3

Gas safety certificate in PO3 (Portsmouth)? We'll point you the right way.

Covering Portsmouth, Hilsea, including Baffins, Charles Dickens, Copnor. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in PO3 (Portsmouth)

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Request a gas safety certificate in PO3 (Portsmouth)

How to check a gas safety engineer is registered: see the Portsmouth page.

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PO3 (Portsmouth) in a nutshell

PO3 covers Portsmouth, Hilsea, in Portsmouth. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for PO3

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Portsmouth council area

PO3 is in Portsmouth's area. Some councils run their own landlord licensing, so it's worth checking theirs.

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

PO3 stretches across Baffins, Charles Dickens, Copnor and more, so give your full postcode, not just 'PO3', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Mostly mains gas round here

Most homes in Portsmouth run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Portsmouth: 76.4% mains gas only
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New to gas safety certificates? 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

  • Every year: a check by a Gas Safe registered engineer.
  • Within 28 days: give your tenants a copy (new tenants get it before they move in).
  • Keep it: hang on to records for at least 2 years.

More detail on the Portsmouth page. Always double-check on GOV.UK.

Next door to PO3

PO2 · PortsmouthPO4 · SouthseaPO6 · CoshamPO1 · PortsmouthPO5 · SouthseaPO7 · Waterlooville

← Gas safety (CP12) across Portsmouth · all areas

Frequently asked questions

Which areas does PO3 cover?

PO3 (Portsmouth, Hilsea) includes the wards of Baffins, Charles Dickens, Copnor, Fratton, Hilsea, Milton (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to PO3?

Neighbouring districts include PO2 (Portsmouth), PO4 (Southsea), PO6 (Cosham), PO1 (Portsmouth), PO5 (Southsea) (ONS Postcode Directory via Doogal). A pro covering PO3 may well cover these too, so it's worth asking.

How many homes are in PO3?

About 8,051 households and 19,843 residents at the 2011 Census, across 441 active postcodes (Doogal / ONS Postcode Directory).

Which council area is PO3 in?

PO3 sits in Portsmouth (postcodes.io). Parliamentary constituency: Portsmouth North, Portsmouth South.

📊 The numbers behind this page
Postcode district
PO3 1
Areas covered
Portsmouth, Hilsea 2
Active postcodes
441 3
Households (2011 Census, via Doogal)
8,051 2
Population (2011 Census, via Doogal)
19,843 2
Electoral wards
Baffins, Charles Dickens, Copnor, Fratton, Hilsea, Milton 4
Parliamentary constituencies
Portsmouth North, Portsmouth South 4
Local authority
Portsmouth 4
Households heated by mains gas only (Portsmouth built-up area)
76.4% 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.