Planning permission in Slough

In the last 12 months, 81.4% of home project applications were approved in Slough (269 decided): extensions, loft conversions and similar work. A typical home project decision takes about eight weeks (median 58 days).

Across all application types, 82.3% of 3,683 applications decided since January 2023 were approved. Based on Slough's public planning register. Data last updated: 5 July 2026.

4,732Total applications

3,683Decided

82.3%Approval rate (of decided)

3,030 Approved+653 Refused+258 Withdrawn+0 Pending+791 Outcome not determined=4,732 Total

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By Development Category

All applications on record, not only the last 12 months.

Category	Decided	Approved	Refused	Approval rate
Full planning applications	1,874	1,517	357	80.9%
Permitted Development with Consultation	539	409	130	75.9%
Certificate of lawfulness (confirming permitted development)	532	440	92	82.7%
Discharging planning conditions	358	338	20	94.4%
Minor amendment to an approved scheme (S96a)	77	69	8	89.6%
Certificate of lawfulness (existing use)	69	48	21	69.6%
Protected tree works (TPO)	66	63	3	95.5%
Advertisement Consent	62	58	4	93.5%
Prior approval (permitted development)	32	25	7	78.1%
Other*	74	63	11	mixed types

* Other combines smaller categories: Listed Building Consent (16), SMI Application (15), Phone masts and telecoms (11), Licensing Application (5), Demolition (5), Regulation 3 Full (5), Reserved matters (detail after outline approval) (4), Outline Planning (4), Environmental impact screening and scoping (4), Tree Application for Works (2), Tree Application for Conservations Area (1), Submission of Details (1).

Quarterly Trend

The most recent three years. Earlier decisions are included in the totals above but not in this chart.

Quarter	Decided	Approved	Approval rate
Q3 2023	123	104	84.6%
Q4 2023	293	253	86.3%
Q1 2024	285	246	86.3%
Q2 2024	328	267	81.4%
Q3 2024	352	299	84.9%
Q4 2024	304	235	77.3%
Q1 2025	286	230	80.4%
Q2 2025	314	238	75.8%
Q3 2025	288	237	82.3%
Q4 2025	249	187	75.1%
Q1 2026	277	239	86.3%
Q2 2026	97	79	81.4%

By Ward

The 12 wards with the most decided applications, across all years. 106 further decided applications fall in wards not shown.

Among wards with at least 20 decided applications, approval rates range from 62.5% in Northborough & Lynch Hill Valley to 88.4% in Colnbrook-and-Poyle, a gap of 25.9 percentage points.

Ward	Decided	Approved	Refused	Approval rate
Upton	82	69	13	84.1%
Cippenham Green	75	59	16	78.7%
Langley St. Marys	72	60	12	83.3%
Farnham	65	54	11	83.1%
Haymill	58	49	9	84.5%
Langley Meads	53	43	10	81.1%
Northborough & Lynch Hill Valley	48	30	18	62.5%
Langley Marish	47	35	12	74.5%
Baylis & Salt Hill	43	30	13	69.8%
Colnbrook-and-Poyle	43	38	5	88.4%
Wexham Court	41	35	6	85.4%
Britwell	38	31	7	81.6%

Frequently asked questions

What is the planning approval rate in Slough?

In the last 12 months, 81.4% of home project applications (extensions, loft conversions and similar work) were approved in Slough, based on 269 decided applications. Across all application types, 82.3% of 3,683 applications decided since January 2023 were approved.

How long does a planning decision take in Slough?

The median time from submission to decision for home project applications decided in Slough in the last 12 months was 58 days (about eight weeks). Times vary case by case.

Do I need planning permission in Slough?

It depends on the project and the property. Many home projects fall under permitted development rights, but constraints such as conservation areas, listed buildings and Article 4 directions change what needs permission at a specific address. See our guides to permitted development rights and Article 4 directions.

Do I need a planning consultant in Slough?

Many home projects do not need one. A straightforward extension on an unconstrained property is often handled directly with the council, or with an architect or agent preparing the drawings. A consultant is more likely to earn their fee where the site is constrained, the council has refused similar schemes, or an appeal is in prospect. Understanding your property's constraints and the council's recent decisions first makes any conversation with a professional a better-informed one.

Planning guides

Not sure what you can build without planning permission? See our guides to permitted development rights, Article 4 directions and planning costs.

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