3-5, Mackenzie Street, Slough, SL1 1XQ Data via plota.co.uk

F/00042/010 - Prior Approval Registered application

Proposal

Prior approval for the proposed change of use from office (Class E) to Dwellingh Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
24 Sept 2026
✓
Validated
25 Sept 2026
✓
Consultation
25 Sept 2026
Decision
Expected by 18 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 19 Nov 2026, from Slough's recent changes of use.

Site constraints 4

National infrastructure project about 777 m away: M4 Junctions 3 to 12 Smart Motorway
The site is about 777 m from the project boundary. Highway, decided. The project page says whether consent was granted.
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
2 listed buildings within 150 m of the postcode pin; Inside the Slough built-up area; Air quality management area about 55 m away: Slough AQMA No. 4.
Not affected
Outside flood zones 2 and 3 · Not green belt · 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 Planning Inspectorate 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 Slough - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Important details

Council
Slough
Application type
Prior Approval
Postcode
SL1 1XQ
Received
24 Sept 2026
Validated
25 Sept 2026
Ward
Slough Central
Case officer
Show
Target decision
18 Nov 2026
Decision level
Delegated
Applicant
Show
Agent
Brocklehurst Architects Ltd
Freehold owner
Show

Decision outlook

Day 14 of the 56-day target. Slough usually decides changes of use by day 55.

Day 1442 days to the 56-day target
65%decided within 8 weeks
77%approved
50decided in the last year

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

Consultation & key dates

Alt. reference
PP-15246823
Site or press notice
25 Sept 2026
Statutory expiry
20 Oct 2026
Slough
Planning Authority Score
2.4/10
Poor
#260 of 296 councils
Relevant to this application:
Change of use

Slough is slower than most councils at deciding householder applications, ranking #263 out of 296. Slough is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Slough decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #275 of 296
82%
Householder approved
Below avg (90%) #269 of 296
42%
Decided in 8 weeks
Below avg (63%) #263 of 296
39%
Extended time limit
Below avg (41%) #142 of 296
60%
Minor dwellings approved
48 decided (1-9 homes)
50%
Major dwellings approved
4 decided (10+ homes)
40%
Change of use approved
47 decided
617
Total decisions
137 refused in the year to March 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.