Planning decisions in Mid Sussex

How long Mid Sussex takes to decide a planning application and how many it approves, from the 1,055 decisions it made in the twelve months to August 2026. Days run from validation to decision, the clock the council reports against; the wait from receipt is shown beside it. How the figures are made.

50 daysmedian from validation to decision (UK 52); 53 from receipt
76%decided within eight weeks (UK 73%), 92% within thirteen
93%approved (UK 89%): 903 approved, 63 refused, 59 withdrawn
115 of 321UK rank for speed, down 28 places on last year; 113 of 321 for approvals
056 September 2025: 56 days, 138 decisionsSeptOctober 2025: 54 days, 214 decisionsOctNovember 2025: 51 days, 205 decisionsNovDecember 2025: 52 days, 191 decisionsDecJanuary 2026: 14 days, 8 decisionsJanFebruary 2026: 34 days, 67 decisionsFebMarch 2026: 48 days, 138 decisionsMarApril 2026: 53 days, 187 decisionsAprMay 2026: 58 days, 140 decisionsMayJune 2026: 55 days, 173 decisionsJunJuly 2026: 55 days, 171 decisionsJulAugust 2026: 53 days, 171 decisionsAug
Median days from validation to decision, by month of decision. Dashed line: UK median (52 days). Grid at 56 and 91 days, the eight and thirteen week targets.

By kind of application

KindMedian daysWithin 8 weeksApprovedDecisionsUK rank
Full applications (including householder)5567%92%418138 of 302
Tree works3693%98%251103 of 259
Discharge of conditions4263%99%12954 of 175
Lawful development certificates5181%84%97135 of 253
Amendments3681%92%80138 of 263
Listed building consent *5665%88%2097 of 200
Advertisement consent *5386%93%1465 of 190

Delegated or committee

RouteShareMedian daysApprovedDecisions
Delegated to officersover 99%5093%986
Planning committeeunder 1%157100%4

Where the register states how the decision was made. 65 decisions did not say.

Appeals

51 appeals against Mid Sussex decisions were decided by the Planning Inspectorate in the window, 81 for every 100 refusals; 31% were allowed. Every appeal in Mid Sussex.

By year

Year decidedMedian daysWithin 8 weeksApprovedDecisions
2016 *6335%98%71
2017 *5656%100%46
2018 *6234%95%105
2019 *2876%70%36
2020 *7133%98%67
2021 *3080%80%26
2022 *4583%95%233
2023 *4960%96%451
2024 *5559%96%27
2025 *2787%92%40
2026 so far5362%93%1,055

* Years from our archive, which carries no validation date: timed from receipt, so a few days longer than the live years above them.

Past their target date now

Decided in the last three weeks

Built nightly from Mid Sussex's planning register. Ranks are among the 321 published councils. See planning applications in Mid Sussex, appeals, or get alerts for Mid Sussex.

About these figures

How are decision times measured?
Days from the date the council validated the application to the date it decided it, for applications approved or refused in the window. That is the clock councils report against and the official statistics use. Each council’s page also shows the count from receipt, which is what the applicant actually waited. Withdrawn and undecided applications are not timed.
Why do these figures differ from the council’s own?
Councils count an agreed extension of time as decided on time; we treat the calendar as the calendar. Our figures are also live and rolling, where official statistics are quarterly and annual. So a council’s own within-eight-weeks figure will usually sit a little above ours.
What counts as approved?
Approval rate is approvals divided by approvals plus refusals. Withdrawals, and decisions whose outcome the register does not state, are counted in the totals but not in the rate.
Why is a council missing?
A council is published when it has at least 25 timed decisions in the window and its register’s decision data passes our consistency checks. Councils that fail are listed with the reason rather than shown with a number that would mislead.
How often is this updated?
Nightly, from the decisions we collect from every council register we monitor. The window is the twelve months to the last complete month.