Land at Victoria Square East of Lerret Road, Chiswell Portland, DT5 1AL Data via plota.co.uk

P/FUL/2026/04002 - Full Planning Application Under Officer Consideration

Proposal

Installation of one 11kV switch room building at the existing Portland SSEN owned substation site and bring the land back into operational use. Planning permission is also sought for the perimeter fencing recently erected around the area proposed to be reinstated and incorporated into the existing operational extent of the Portland Electricity Substation Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 Aug 2026
Decision
Expected by 15 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 11 Oct 2026 and 19 Oct 2026, from Dorset's recent utility and infrastructure works.

The consultation period closed on 22 Sept 2026.

Site constraints 11

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Special area of conservation 151 m away: Chesil & The Fleet
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.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
SSSI 151 m away: Chesil & The Fleet 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.
Also on the record
Conservation area 35 m away: Underhill Conservation Area 1; 1 listed building within 150 m; Radon affected area, class 3; World heritage site 153 m away: Dorset and East Devon Coast; Inside the Fortuneswell built-up area; Flood defence 37 m away (wall, designed for a 1 in 200 year flood); Heritage coast 154 m away: West Dorset.
Not affected
Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, 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.

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Important details

Council
Dorset
Application type
Full Planning Application
Postcode
DT5 1AL
Received
20 Aug 2026
Validated
20 Aug 2026
Ward
Portland Ward
Parish
Portland
Case officer
Show
Decision level
Delegated
Applicant
Show
Agent
Environment and Planning Team Dalcour Maclaren

Decision outlook

Day 50 of the 56-day target. Dorset usually decides utility and infrastructure works by day 55.

Day 506 days to the 56-day target
57%decided within 8 weeks
93%approved
96decided in the last year

Plota live figures for utility and infrastructure works decided by Dorset in the last twelve months, from validation. Dorset decision record →

Consultation & key dates

Comments by
22 Sept 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