Hitchin · SG4
Gas safety certificate in SG4 (Breachwood Green)? We'll point you the right way.
Covering Breachwood Green, Kimpton, King's Walden, Graveley, Little Wymondley, Great Wymondley, including Codicote & Kimpton, Graveley, St Ippolyts & Wymondley, Hitchin Bearton. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in SG4 (Breachwood Green)
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Request a gas safety certificate in SG4 (Breachwood Green)
How to check a gas safety engineer is registered: see the Hitchin page.
SG4 (Breachwood Green) in a nutshell
SG4 covers Breachwood Green, Kimpton, King's Walden, Graveley, Little Wymondley, Great Wymondley, in North Hertfordshire and Stevenage and Welwyn Hatfield. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SG4
Two councils in one district
SG4 is split between North Hertfordshire and Stevenage and Welwyn Hatfield. Some councils run their own landlord licensing, so check which one your home is in.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SG4 stretches across Codicote & Kimpton, Graveley, St Ippolyts & Wymondley, Hitchin Bearton and more, so give your full postcode, not just 'SG4', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Hitchin run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Hitchin: 75.6% mains gas onlyEngland 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 Hitchin page. Always double-check on GOV.UK.
Next door to SG4
Frequently asked questions
Which areas does SG4 cover?
SG4 (Breachwood Green, Kimpton, King's Walden, Graveley, Little Wymondley, Great Wymondley) includes the wards of Codicote & Kimpton, Graveley, St Ippolyts & Wymondley, Hitchin Bearton, Hitchin Highbury, Hitchin Priory, Hitchin Walsworth, Hitchwood, Knebworth, Letchworth South West, Roebuck, Welwyn West, Weston & Sandon (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SG4?
Neighbouring districts include SG5 (Apsley End), SG1 (North Stevenage), SG15 (Arlesey), SG6 (Letchworth), SG2 (South Stevenage) (ONS Postcode Directory via Doogal). A pro covering SG4 may well cover these too, so it's worth asking.
How many homes are in SG4?
About 12,242 households and 28,916 residents at the 2011 Census, across 906 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SG4 in?
SG4 sits in North Hertfordshire, Stevenage, Welwyn Hatfield (postcodes.io). Parliamentary constituency: Hitchin, North East Hertfordshire, Stevenage, Welwyn Hatfield.
📊 The numbers behind this page
- Postcode district
- SG4 1
- Areas covered
- Breachwood Green, Kimpton, King's Walden, Graveley, Little Wymondley, Great Wymondley 2
- Active postcodes
- 906 3
- Households (2011 Census, via Doogal)
- 12,242 2
- Population (2011 Census, via Doogal)
- 28,916 2
- Electoral wards
- Codicote & Kimpton, Graveley, St Ippolyts & Wymondley, Hitchin Bearton, Hitchin Highbury, Hitchin Priory, Hitchin Walsworth, Hitchwood, Knebworth … 4
- Parliamentary constituencies
- Hitchin, North East Hertfordshire, Stevenage, Welwyn Hatfield 4
- Local authority
- North Hertfordshire, Stevenage, Welwyn Hatfield 4
- Households heated by mains gas only (Hitchin built-up area)
- 75.6% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- ONS Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.