14 , Sundown Close , New Mills , Derbyshire , SK22 3DH Data via plota.co.uk

HPK/2026/0345 - Certificate of Lawfulness - Proposed Invalid application
Extensions & alterations

Proposal

Application for a Lawful Development Certificate for a Proposed - Construction of new dormer roof to the rear elevation of the property and conversion of the existing loft space into new habitable bedroom. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
26 Aug 2026
Decision
Expected by 21 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision between 24 Oct 2026 and 4 Nov 2026, from High Peak's recent extensions.

Documents

View the documents on the council's website ↗

Site constraints 3

Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the New Mills built-up area; the 1970s provisional farmland map had this area as grade 4, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.

Work with planning data?

Every application in High Peak - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Nearby new applications

12 Aug 2026Pending

23 , Knightwake Road , New Mills , Derbyshire , SK22 3DQ

Conversion of existing attic space to form dormer bedroom

HPK/2026/0320
19 Jun 2026Pending

3 , Godward Road , New Mills , Derbyshire , SK22 3BU

Proposed garage conversion and front porch extension including new pitched roof,...

HPK/2026/0247

Important details

Council
High Peak
Application type
Certificate of Lawfulness - Proposed
Postcode
SK22 3DH
Received
26 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Arqi

Decision outlook

Day 20 of the 56-day target. High Peak usually decides extensions by day 64.

Day 2044 days to the predicted decision (day 64)
37%decided within 8 weeks
85%approved
69decided in the last year

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

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
6 , Combs Close , New Mills , Derbyshire , SK22 3ED
Single storey porch extension
HPK/2025/0257
2025 Approved
6 , Combs Close , New Mills , Derbyshire , SK22 3ED
Single storey porch extension
HPK/2025/0257
2021 Approved
9 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Extension of existing detached garage and partial conversion to home office room.
HPK/2021/0289
2021 Approved
9 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Extension of existing detached garage and partial conversion to home office room.
HPK/2021/0289
2020 Approved
4 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Proposed extension of existing dormer to the front elevation and changes to the front ele…
HPK/2020/0527
2020 Approved
4 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Proposed extension of existing dormer to the front elevation and changes to the front ele…
HPK/2020/0527
2020
4 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Construction of new front porch and rear dormer
HPK/2020/0074
2020
4 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Construction of new front porch and rear dormer
HPK/2020/0074
2019 Approved
10 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Proposed extension of existing dormer to the front elevation and changes to the front ele…
HPK/2019/0392
2019 Approved
10 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Proposed extension of existing dormer to the front elevation and changes to the front ele…
HPK/2019/0392
2019 Approved
18 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
2 storey side extension & rear dormer.
HPK/2019/0227
2019 Approved
18 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
2 storey side extension & rear dormer.
HPK/2019/0227
2019 Approved
18 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Side and front extension
HPK/2019/0070
2019 Approved
18 , Greenfield Close , New Mills , Derbyshire , SK22 3DG
Side and front extension
HPK/2019/0070
2018 Approved
8, Greenfield Close, New Mills, Derbyshire, SK22 3DG
Extension of existing dormer to the front elevation.
HPK/2018/0157
2018 Approved
8, Greenfield Close, New Mills, Derbyshire, SK22 3DG
Extension of existing dormer to the front elevation.
HPK/2018/0157
High Peak
Planning Authority Score
1.2/10
Poor
#287 of 296 councils
Relevant to this application:
Householder decisions

High Peak is one of the slowest councils in England for householder decisions, ranking #284 out of 296. The council extends the time limit on 73% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly less likely to be approved here (89%) than the national average (90%).

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
High Peak decision statistics
Based on MHCLG data, the year to March 2026
85%
Overall approval rate
Below avg (87%) #207 of 296
89%
Householder approved
Below avg (90%) #204 of 296
29%
Decided in 8 weeks
Below avg (63%) #284 of 296
73%
Extended time limit
Above avg (41%) #291 of 296
78%
Minor dwellings approved
32 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
89%
Change of use approved
18 decided
364
Total decisions
55 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings