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Permitted25/01314/PLUSubmitted 9 months agoRear extension

20 Halnaby Avenue Darlington DL3 8UH

Certificate of Lawfulness for proposed development - Erection of a single storey rear extension including the addition of 5-no. roof lights (amended description)

Find on council portalDocuments (8)

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Progress

Submitted
28 Nov 2025
— completed
Validated
2 Dec 2025
— completed
Consultation
—
— completed
Target date
23 Jan 2026
— completed
Decided
12 Dec 2025
— completed

Application details

Reference
25/01314/PLU
Local authority
Darlington
Postcode
DL3 8UH
Ward
Hummersknott
Application type
Outline
Property type
House

Key dates

Submitted
28 Nov 2025
Validated
2 Dec 2025
Target decision
23 Jan 2026
Decided
12 Dec 2025

8 documents · 0 comments · 19 constraints

Estimated project value

£30k–£55k

Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

Recently sold nearby

Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.

Homes here go for about £307,000 — the median of the last 8 market sales in DL3 8UH, £249,950 to £350,000.

Contains HM Land Registry data © Crown copyright and database right 2024. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

Nearby applications