Basement planning approval rate in Horsham
81% of 27 decided basement applications in Horsham were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
81%
Approval rate, all years, from 27 decided
27
decided basement applications in Horsham: 22 approved, 5 refused
88%
Recent rate, decided since 2022, from 8 decided
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded. The eight-record threshold is a display rule, not a guarantee that a sample is statistically reliable.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Coverage for this project type
Dated records in this archive span 2015 to 2025. 0 of 27 decided records have no year recorded. Coverage may have gaps within the date range.
8 decided records are dated 2022 or later. This is an archive count, not a measure of all current council activity.
Small archive sample: only 27 decided records support this figure. A small number of different outcomes can substantially change the percentage.
These project categories can include different application routes and proposals combining several kinds of work. Read the proposal and decision type before comparing it with your project.
Check planning requirements in Horsham, or read about permitted development in Horsham. An approval rate does not decide which route your property qualifies for.
Example basement decisions in Horsham
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
Visit Horsham's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| DC/25/0209 | 2025 | Approved | Erection of two-storey extensions to the north (front) elevation, alterations at basement level, alterations to windows on the eastern (side) elevation and a... Horton Hall Henfield Road Small Dole West Sussex BN5 9XJ |
| DC/25/1372 | 2025 | Approved | Non Material Amendment to previously approved application DC/23/2144 (Variation of condition 1 of previously approved application reference DC/21/0057 (A pha... Plot 4 Angel Sandpit Site RH20 4FL |
| DC/23/1603 | 2024 | Refused | Conversion of office building to five short term tenancy apartments with basement service room. Mill House 11 Nightingale Road Horsham West Sussex RH12 2NW |
| DC/23/1948 | 2024 | Approved | Demolition of existing lean-to and creation of new opening. Erection of a single storey side and rear extension including part basement and associated extern... 39 East Street Billingshurst West Sussex RH14 9QJ |
| DC/18/1593 | 2018 | Refused | Installation of damp proofing to the walls and floor of the basement (Listed Building Consent) The Old Presbytery Church Place Pulborough West Sussex RH20 1AF |
| DC/16/2754 | 2017 | Refused | Creation of new access to the cellar. (Listed Building Consent) 2 Warnham Court Warnham Horsham West Sussex RH12 3QF |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in Horsham
- Single-storey rear extension 95%, 1,102 decided
- Two-storey rear extension 91%, 444 decided
- Wraparound extension 97%, 231 decided
- Side extension 93%, 721 decided
- Loft conversion and dormer 89%, 258 decided
- Rooflight 94%, 258 decided
- Outbuilding and garden room 89%, 292 decided
- Porch 98%, 181 decided
- Garage conversion 94%, 160 decided
- Window and door 93%, 338 decided