22 St Leonards Avenue Blandford Forum DT11 7NY Data via plota.co.uk

P/HOU/2026/03140 - Householder Planning Permission Approved

Proposal

Erect rear extension, annex, convert loft, demolish & replace existing garage Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
22 Jun 2026
✓
Approved
2 Sept 2026

Approved on 2 Sept 2026 · Delegated · Last checked 4 Sept 2026

Documents 35

Plans & drawings 28

PDF Location and Site Plan rev. B 394kb · 2 Sept 2026 View ↗ PDF Annex Proposed Floor Plans and Elevations rev. B 20kb · 1 Sept 2026 View ↗ PDF House Proposed Elevations rev. C 434kb · 26 Aug 2026 View ↗ PDF Garage Existing Floor Plans & Elevations 205kb · 22 Jun 2026 View ↗ PDF Garage Existing Floor Plans & Elevations rev. B 205kb · 22 Jun 2026 View ↗ PDF House Proposed Elevations 345kb · 9 Jun 2026 View ↗ PDF Garage Proposed Plans & Elevations 212kb · 9 Jun 2026 View ↗ PDF Annex Proposed Floor Plans & Elevations 196kb · 9 Jun 2026 View ↗ PDF House Proposed Roof Plan 181kb · 9 Jun 2026 View ↗ PDF Proposed Loft Conversion Floor Plans 200kb · 9 Jun 2026 View ↗ PDF House Proposed First Floor Plan 182kb · 9 Jun 2026 View ↗ PDF House Proposed Ground Floor Plan 185kb · 9 Jun 2026 View ↗ PDF House Proposed Basement Floor Plan 188kb · 9 Jun 2026 View ↗ PDF House Existing Elevations 314kb · 9 Jun 2026 View ↗ PDF House Existing Roof Plan 184kb · 9 Jun 2026 View ↗ PDF House Existing First Floor Plan 185kb · 9 Jun 2026 View ↗ PDF House Existing Basement & Ground Floor Plan 192kb · 9 Jun 2026 View ↗ PDF Location & Site Plan 315kb · 9 Jun 2026 View ↗ PDF Garage Proposed Plans & Elevations rev. A 212kb · 9 Jun 2026 View ↗ PDF House Proposed Roof Plan rev. A 181kb · 9 Jun 2026 View ↗ PDF Proposed Loft Conversion Floor Plans rev. A 200kb · 9 Jun 2026 View ↗ PDF House Proposed First Floor Plan rev. A 182kb · 9 Jun 2026 View ↗ PDF House Proposed Ground Floor Plan rev. A 185kb · 9 Jun 2026 View ↗ PDF House Proposed Basement Floor Plan rev. A 188kb · 9 Jun 2026 View ↗ PDF House Existing Elevations rev. A 314kb · 9 Jun 2026 View ↗ PDF House Existing Roof Plan rev. A 184kb · 9 Jun 2026 View ↗ PDF House Existing First Floor Plan rev. A 185kb · 9 Jun 2026 View ↗ PDF House Existing Basement & Ground Floor Plan rev. A 192kb · 9 Jun 2026 View ↗

All documents on the council site ↗

Site constraints 5

Blandford St Mary and Bryanston Conservation Area 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.
Also on the record
National landscape 152 m away: Cranborne Chase & West Wiltshire Downs; Scheduled monument 231 m away: St Leonard's Chapel; Inside the Blandford Forum built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, 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 listed building at the site

Checked on 6 October 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.

Building

Floor area136 m² (1,464 sq ft)
Energy ratingD (59 out of 100)
PropertyDetached house, 6 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

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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Important details

Council
Dorset
Application type
Householder Planning Permission
Postcode
DT11 7NY
Received
22 Jun 2026
Validated
22 Jun 2026
Ward
Blandford Ward
Parish
Blandford Forum
Case officer
Show
Decision
Granted
Decision date
2 Sept 2026
Decision level
Delegated
Applicant
Show
Freehold owner
Show

How this decision compares

Decided in 72 days from validation, 17 days slower than Dorset's median of 55 for demolitions. Approved, as 92% of demolitions here are.

64%decided within 8 weeks
92%approved
308decided in the last year

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

Consultation & key dates

Comments by
24 Jul 2026
Dorset
Planning Authority Score
7.5/10
Good
#44 of 296 councils
Relevant to this application:
Householder decisions

Dorset is faster than most councils at deciding householder applications, ranking #51 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Dorset decision statistics
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #80 of 296
95%
Householder approved
Above avg (90%) #74 of 296
78%
Decided in 8 weeks
Above avg (63%) #51 of 296
35%
Extended time limit
Below avg (41%) #102 of 296
81%
Minor dwellings approved
344 decided (1-9 homes)
85%
Major dwellings approved
40 decided (10+ homes)
76%
Change of use approved
85 decided
2,781
Total decisions
233 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.

Freehold owner: 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.