Newton Aycliffe · DL5

EPC in DL5 (Newton Aycliffe)? We'll point you the right way.

Covering Newton Aycliffe, Heighington, including Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe. 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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DL5 (Newton Aycliffe) in a nutshell

DL5 covers Newton Aycliffe, Heighington, in County Durham and Darlington. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for DL5

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Two councils in one district

DL5 is split between County Durham and Darlington. 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

DL5 stretches across Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe and more, so give your full postcode, not just 'DL5', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Terrace and semi country

Most homes here are terraces or semis. Insulation and heating upgrades are the usual way to nudge a rating up, so have receipts ready.

Where's this from?ONS Census 2021, Newton Aycliffe: 43.4% terraced, 28.6% semi-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 DL5

DL4 · ShildonDL3 · Darlington WestDL17 · FerryhillDL2 · StaindropDL16 · SpennymoorDL1 · Darlington East

all areas

Frequently asked questions

Which areas does DL5 cover?

DL5 (Newton Aycliffe, Heighington) includes the wards of Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe, Sedgefield (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to DL5?

Neighbouring districts include DL4 (Shildon), DL3 (Darlington West), DL17 (Ferryhill), DL2 (Staindrop) (ONS Postcode Directory via Doogal). A pro covering DL5 may well cover these too, so it's worth asking.

How many homes are in DL5?

About 12,548 households and 29,224 residents at the 2011 Census, across 802 active postcodes (Doogal / ONS Postcode Directory).

Which council area is DL5 in?

DL5 sits in County Durham, Darlington (postcodes.io). Parliamentary constituency: Darlington, Newton Aycliffe and Spennymoor.

📊 The numbers behind this page
Postcode district
DL5 1
Areas covered
Newton Aycliffe, Heighington 2
Active postcodes
802 3
Households (2011 Census, via Doogal)
12,548 2
Population (2011 Census, via Doogal)
29,224 2
Electoral wards
Aycliffe North & Middridge, Aycliffe South, Heighington & Coniscliffe, Sedgefield 4
Parliamentary constituencies
Darlington, Newton Aycliffe and Spennymoor 4
Local authority
County Durham, Darlington 4
Households privately renting (Newton Aycliffe built-up area)
14.8% 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.