101 Belthorn Road Darwen BB1 2NY Data via plota.co.uk

10/26/0241 - Full Planning Application Approved

Proposal

Proposed front and rear dormer extensions Data via plota.co.uk

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View original council record ↗Last checked 1 Oct 2026, 03:29

Application progress

✓

Received

17 Mar 2026

✓

Validated

19 Mar 2026

✓

Approved

23 Apr 2026

Approved on 23 Apr 2026 · Delegated · Last checked 1 Oct 2026

Documents 6

Associated applications 2

Full23 Apr 202610/26/0241This application
Proposed front and rear dormer extensions
Conditions variation sought for 2, 3
- VariationVariation of Conditions No. 2 "drawings" and 3 "materials" - change of external materials…17 Jun 202610/26/0552

Site constraints 6

Green belt: Merseyside and Greater Manchester

Inappropriate development needs very special circumstances.

Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.

Read the government guidance ↗

Coal mining development high risk area

Recorded coal mining features at or near the surface. Most planning applications here need a coal mining risk assessment. Nearest recorded mine shaft: about 20 m from the postcode pin (reference 371424-018).

From the Mining Remediation Authority, formerly the Coal Authority. The development high risk area marks recorded coal mining features at or near the surface: mine shafts and adits, shallow workings, mine gas and former opencast sites. Most planning applications there need a coal mining risk assessment; householder applications, changes of use and some minor works are exempt. Mine entry positions come from old plans and can be out by several metres, and unrecorded workings can exist anywhere in the coalfield.

Coal mining risk assessments ↗

Agricultural land, grade 4

Poor quality farmland, not best and most versatile. Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s) agrees.

Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.

Habitat network: Network Expansion Zone

Where habitat is joined up enough to work as a network. Context, not a constraint on its own.

Radon affected area, class 5

An estimated 10 to 30% of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.

From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.

UKHSA radon ↗

Public footpath about 26 m away

Matters where it crosses or adjoins the site: obstructing a path without a diversion order is an offence, and work cannot start until the order is confirmed.

Compiled from highway authority data, not the legal definitive map. A few authorities have not published, so no path shown is not proof there is none.

Not affected

Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 1

Last sold for £250,000 in December 2025. Semi-detached house, freehold.

12 December 2025£250,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area93 m² (1,001 sq ft)

Energy ratingD (65 out of 100), could reach C

PropertySemi-detached bungalow, 3 habitable rooms

Built1900 to 1929

HeatingBoiler and radiators, mains gas

WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2025, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

17 Jun 2026Approved

101 Belthorn Road, Darwen, Blackburn With Darwen, BB1 2NY

Variation of Conditions No. 2 "drawings" and 3 "materials" pursuant to planning ...

10/26/0552

4 Aug 2026Approved

PULFORD FARM Belthorn Road, Darwen, Blackburn With Darwen, BB1 2NL

Variation of Condition No.2 "approved drawings" pursuant to planning application...

10/26/0702

Important details

Council: Blackburn
Application type: Full Planning Application
Postcode: BB1 2NY
Received: 17 Mar 2026
Validated: 19 Mar 2026
Ward: West Pennine
Parish: Blackburn
Case officer: Show
Target decision: 14 May 2026
Decision: PERMITS
Decision date: 23 Apr 2026
Decision level: Delegated
Applicant: Show
Agent: Aldrock Surveyors Ltd.

How this decision compares

Decided in 35 days from validation, 17 days faster than Blackburn's median of 52 for extensions. Approved, as 99% of extensions here are.

This one35d

Council52d

UK55d

74%decided within 8 weeks

99%approved

396decided in the last year

Plota live figures for extensions decided by Blackburn in the last twelve months, from validation. Blackburn decision record →

Consultation & key dates

Statutory expiry: 14 May 2026

Historical activity at this location

8 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved

79 Belthorn Road Belthorn BB1 2PA

Demolition of external store and erection of double storey side extension and first floor…

10/25/0560 30 Jul 2025

2025 Approved

77 Belthorn Road Darwen BB1 2NY

Demolition of conservatory, erection of single-storey rear extension with raised decking…

10/25/0258 6 May 2025

2021 Approved

Land to rear of 176 Belthorn Road Belthorn BB1 2NY

Erection of single storey double garage to the rear of BB1 2NY

11/21/0602 15 Dec 2021

2021 Approved

174 Belthorn Road Belthorn BB1 2NY

Householder: Erection of rear extension

11/21/0088 21 Apr 2021

2018 Approved

Belthorn Academy Primary School Belthorn Road Belthorn BB1 2NY

Full: Erection of single-storey extension to kitchen modification of school entrance repl…

11/18/0172 20 Jun 2018

2018 Approved

Belthorn Academy Primary School Belthorn Road Belthorn BB1 2NY

Full: Erection of single-storey extension to kitchen modification of school entrance repl…

11/18/0172 20 Jun 2018

2016 Approved

SPRING HILL FARM BELTHORN ROAD BELTHORN BLACKBURN LANCS BB1 2NY

Agricultural Prior Notification: Erection of Agricultural Building

11/16/0052 4 Mar 2016

2016 Approved

SPRING HILL FARM BELTHORN ROAD BELTHORN BLACKBURN LANCS BB1 2NY

Agricultural Prior Notification: Erection of Agricultural Building

11/16/0052 4 Mar 2016

Blackburn

Planning Authority Score

7.2/10

Good

#55 of 296 councils

Relevant to this application:

Householder decisions

Blackburn is faster than most councils at deciding householder applications, ranking #90 out of 296. Householder applications are more likely to be approved here than most councils, with a 98% approval rate vs 90% nationally.

More permissive than most councils

98% approved vs 90% nationally

These figures are council-wide context, not a prediction for this application. View full council performance

Blackburn decision statistics

Based on MHCLG data, the year to March 2026

96%

Overall approval rate

Above avg (87%) #7 of 296

98%

Householder approved

Above avg (90%) #10 of 296

73%

Decided in 8 weeks

Above avg (63%) #90 of 296

40%

Extended time limit

Below avg (41%) #147 of 296

88%

Minor dwellings approved

40 decided (1-9 homes)

100%

Major dwellings approved

7 decided (10+ homes)

86%

Change of use approved

56 decided

519

Total decisions

23 refused in the year to March 2026

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.