Boreham Mill, Bishopstrow Road, Warminster, Wiltshire, BA12 9HQ Data via plota.co.uk

PL/2026/02177 - Prior Approval Part 3, Class MA Approved

Proposal

Prior Approval Part 3, Class MA: Commercial, business and service uses to dwellinghouses: Conversion of building into 6 flats comprising 3 x 3 beds and 3 x two beds - No external changes to the external facades is anticipated Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
31 Mar 2026
✓
Approved
27 Aug 2026

Approved on 27 Aug 2026 · Last checked 2 Sept 2026

Documents 42

Plans & drawings 21

PDF Emergency Evacuation Plan Statements · 16 Jul 2026 View ↗ PDF 2500_P102 V1 Proposed Second Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_P103 V1 Proposed Third Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_P100 V1 Proposed Ground Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_P101 V1 Proposed First Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_EX010 Location and Site Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_EX102 Existing Second Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_EX103 Existing Third Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_EX100 Existing Ground Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF 2500_EX101 Existing First Floor Plan.pdf Document · 1 Apr 2026 View ↗ PDF Boreham Mill - Existing Drawings Dec 2025.pdf Plan · 1 Apr 2026 View ↗ PDF 2500_P102 V1 Proposed Second Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_P103 V1 Proposed Third Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_P100 V1 Proposed Ground Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_P101 V1 Proposed First Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_EX010 Location and Site Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_EX102 Existing Second Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_EX103 Existing Third Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_EX100 Existing Ground Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF 2500_EX101 Existing First Floor Plan.pdf PDF · 1 Apr 2026 View ↗ PDF Boreham Mill - Existing Drawings Dec 2025.pdf Plan · 1 Apr 2026 View ↗

All documents on the council site ↗

Site constraints 9

Nutrient neutrality catchment: River Avon SAC
New homes and overnight accommodation must show nutrient neutrality before approval.
Natural England advice: extra wastewater in these catchments harms protected habitats, so schemes must offset their nutrient load, usually through credits.
Bishopstrow conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Local nature reserve about 56 m away: River Avon
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Scheduled monument about 98 m away: A pair of bowl barrows 225m south east of Boreham Mill
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
SSSI about 56 m away: Britford Water Meadows SSSI
Natural England may need consulting, depending on what is proposed.
Sites of special scientific interest are the best wildlife and geological sites in the country. Development likely to harm one is rarely permitted.
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
2 listed buildings within 150 m of the postcode pin; Inside the Warminster built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) 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

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 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.

Building

Floor area765 m² (8,234 sq ft)
Energy ratingC (asset rating 72)
UseB1 Offices and Workshop businesses
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in October 2020, 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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Important details

Council
Wiltshire
Application type
Prior Approval Part 3, Class MA
Postcode
BA12 9HQ
Received
31 Mar 2026
Validated
31 Mar 2026
Ward
Warminster East ED
Parish
Warminster CP
Case officer
Show
Target decision
27 Aug 2026
Decision
Prior Approval Granted
Decision date
27 Aug 2026
Leaseholder
Show

How this decision compares

Decided in 149 days from validation, 83 days slower than Wiltshire's median of 66 for changes of use. Approved, as 85% of changes of use here are.

40%decided within 8 weeks
85%approved
212decided in the last year

Plota live figures for changes of use decided by Wiltshire in the last twelve months, from validation. Wiltshire decision record →

Public comments

8comments received
1 objecting7 neutral

13% object · below the UK average of 74%

Last counted 2 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
12 Aug 2026
Wiltshire
Planning Authority Score
3.9/10
Below average
#203 of 296 councils
Relevant to this application:
Householder decisions

Wiltshire is slower than most councils at deciding householder applications, ranking #225 out of 296. The council extends the time limit on 55% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly more likely to be approved here (96%) than the national average (90%).

Frequently extends decision deadlines
expect longer than the statutory limit
These figures are council-wide context, not a prediction for this application. View full council performance
Wiltshire decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #71 of 296
96%
Householder approved
Above avg (90%) #65 of 296
53%
Decided in 8 weeks
Below avg (63%) #225 of 296
55%
Extended time limit
Above avg (41%) #252 of 296
78%
Minor dwellings approved
339 decided (1-9 homes)
90%
Major dwellings approved
48 decided (10+ homes)
92%
Change of use approved
160 decided
3,659
Total decisions
256 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.

Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.