How to search Horsham planning applications on the council's Public Access portal, how long you get to comment, what counts, and the schemes to watch now.

Every one of the Horsham planning applications submitted in the district, from a rear extension in Southwater to a 3,000 home scheme on the Crawley border, goes on a public register you can search for free without an account. Most people only discover a proposal exists when the site notice appears on a lamp post, by which time a good chunk of the comment window has gone. This guide covers where the register lives, the trap that catches out anyone in the south of the district, how long you really have to comment, what the council can and cannot take into account, and the schemes worth watching right now.

Where to find Horsham planning applications

Horsham District Council runs an Idox Public Access portal. The address is not the one most councils use, so it is worth bookmarking rather than guessing:

Note the hyphen in the host name and the fact that the path ends in /public-access rather than the /online-applications used by neighbouring authorities. You do not need an account to look. Search by street name, postcode or reference number and you get the drawings, the officer reports, the consultation dates, the case officer and the comments already submitted.

A Horsham reference looks like DC/26/1234. The DC is the prefix used across the district, the two digits are the year, and the last block is the running number.

The council’s own view and comment on planning applications page also carries a documents-only search, where entering a reference gets you the paperwork without the ability to comment.

The South Downs trap

Here is the part that catches people out. If the site sits inside the South Downs National Park, the application is not on the Horsham portal at all. Those applications carry an SDNP reference and live on a separate register at planningpublicaccess.southdowns.gov.uk, because the National Park Authority, not the district council, is the planning authority there.

That covers a broad southern strip of the district, taking in Amberley, Storrington and Sullington, Washington, Upper Beeding, Bramber and the Steyning area. If you live down there, searching only the Horsham portal will show you a partial picture, and a scheme near you can be validated, consulted on and decided without ever appearing on it.

Weekly lists and email alerts

Running the same search by hand is easy to forget. Two better habits:

  • The weekly list. The portal’s weekly and monthly lists let you pick a week and filter by parish or ward. There are 122 parish options, from Amberley through Billingshurst and Horsham to West Grinstead, so you can narrow it to your own village in one click.
  • Saved searches with alerts. Register a free account and you can track individual applications, save a search for your street or ward, and have the council’s system email you whenever something new matches. Setting that up once is the single most useful thing you can do if you want to hear about a neighbour’s plans on day one rather than on day fifteen.

How long you get to comment

The standard window is 21 days. Horsham measures it from the date of the letter sent to nearby properties, or from the date of the site notice or the advertisement in the Sussex Times, whichever is later. Not every application gets a site notice or a press advert, so the date on your letter is not always the operative one.

For development accompanied by an Environmental Statement, so called EIA development, the period is 30 days from the site notice or press notice, whichever is later.

The exact deadline for any application is on the Important Dates tab of its page on the portal, which is the only place worth trusting.

Late comments are not automatically thrown away, and the council is unusually specific about this. It will keep considering representations after the deadline until either the application is decided, or, if it is going to planning committee, midday on the Friday before the committee meeting. After those points, representations are not taken into account at all.

What actually counts in a comment

A planning decision can only turn on planning merits. The council publishes both lists, and reading them before you write is the difference between an objection that carries weight and one that is politely filed.

Relevant material considerations include planning policy and government guidance, case law and previous decisions, highway safety, traffic and parking, noise, disturbance and smells, overshadowing and loss of privacy, effects on listed buildings and conservation areas, loss of trees, and design, appearance, materials and character.

Irrelevant considerations include the effect on property values, loss of a private view, private property rights, restrictive covenants, matters covered by other legislation, the personal or financial circumstances of anyone involved, moral or religious objections, and private disputes between neighbours.

That second list is where most objections quietly fail. “It will overshadow my kitchen and there is nowhere for the extra cars to go” is a planning objection. “It will devalue my house and I will lose my view” is not, however strongly you feel it.

What gets published about you

This is worth knowing before you press send. The council collects your name, address, email and telephone number. Since GDPR, comments are published with names and contact details redacted, but your address is still made public, so that comments can be referenced in the officer’s report.

Three further rules:

  • Anonymous comments carry little weight. If you do not give your name and address, the comment is treated as anonymous.
  • Confidential comments are a real option, with a real cost. You can ask for a comment not to be published, and the case officer will read and consider it, but it cannot be formally taken into account, will not be summarised in the officer report, will not be listed as an objection, cannot trigger a committee referral, and cannot be sent to the Planning Inspectorate on appeal.
  • Offensive, discriminatory or defamatory comments are rejected and returned to you, though you can resubmit in an acceptable form.

Comments must be in writing, submitted through the portal or in writing to the council at Albery House, Springfield Road, Horsham, RH12 2GB.

The schemes shaping the district right now

Land West of Ifield: up to 3,000 homes

The largest application in the district is Homes England’s hybrid scheme for Land West of Ifield, on the district’s border with Crawley, reference DC/25/1312. Submitted in August 2025, it proposes up to 3,000 homes in outline, along with hotel accommodation, community and education facilities, gypsy and traveller pitches, public open space with sports and recreation facilities, and pedestrian and cycle routes, plus full applications for Phase 1 highways including the Crawley Western Multi Modal Corridor with access from Charlwood Road, and infrastructure for a secondary school site with access to Rusper Road.

The council said when it received the application that a decision was expected in early 2026 (council announcement). Check DC/25/1312 on the portal for where it has actually got to.

The Local Plan: consultation open until 24 August 2026

Bigger than any single application is the Horsham District Local Plan 2023 to 2040, which decides where development can go in the first place. It was submitted for examination in July 2024, with hearings in December 2024 and April 2026. The Planning Inspector has now recommended a set of Main Modifications, the changes considered necessary to make the plan sound.

A six week public consultation on those modifications runs from Monday 13 July 2026 to 12 noon on Monday 24 August 2026. Only comments on the Main Modifications themselves will be processed, not on the rest of the plan, and anything arriving after the deadline will not be accepted (latest news from the Local Plan examination).

Beyond that, the council has already begun work on its successor, Horsham District 2045, with a scoping consultation and a Call for Sites in 2026.

Water neutrality: the constraint that has just lifted

For four years, development across the district was held up by water neutrality. Natural England’s September 2021 Position Statement meant new homes could not proceed unless they demonstrated no net increase in water abstraction from the Arun Valley.

On 31 October 2025 Natural England withdrew that Position Statement, after agreeing with Southern Water and the Environment Agency that a reduction in the abstraction licence cap would protect the Arun Valley habitats. For applicants that means no water neutrality statement, no payment into the Sussex North Water Certification Scheme, which will now never launch, and no bespoke conditions or section 106 obligations for water neutrality (water neutrality).

Two caveats survive. New housing still has to meet the Building Regulations Part G optional standard of 110 litres per person per day by condition, and because the licence change itself was not due until March 2026, officers continue to carry out an Appropriate Assessment under the Habitats Regulations. The council’s own budget assumes the effect will be sharp: over 1,100 new dwellings a year by the end of the decade.

Frequently asked questions

How do I find planning applications in Horsham?

Search the council’s Public Access portal at public-access.horsham.gov.uk/public-access by address, postcode or reference. No account is needed to view. The weekly list shows everything registered in a chosen week, filtered by parish or ward if you want.

What does a Horsham planning reference look like?

Applications decided by the district council use the form DC/26/1234. References beginning SDNP belong to the South Downs National Park Authority and are on a different portal.

How long do I have to comment on a Horsham planning application?

Normally 21 days, counted from the neighbour letter, the site notice or the advert in the Sussex Times, whichever is latest. For EIA development it is 30 days. The exact date is on the Important Dates tab of the application. Late comments are still considered until the decision is made, or until midday on the Friday before committee.

Will my name and address be published if I object?

Your name and contact details are redacted, but your address is published. Anonymous comments carry little weight. You can ask for a comment to be treated as confidential, but it then cannot be formally taken into account, cannot trigger a committee referral and cannot go to the Planning Inspectorate on appeal.

What objections does Horsham District Council actually take into account?

Planning matters only: highway safety, traffic and parking, noise and disturbance, overshadowing and loss of privacy, design and character, loss of trees, effects on listed buildings and conservation areas, and planning policy. Property values, loss of a view, covenants and neighbour disputes are all explicitly irrelevant.

Why can’t I find an application in Storrington or Amberley on the Horsham portal?

Because those villages sit in the South Downs National Park, where the National Park Authority is the planning authority. Those applications carry SDNP references and are on planningpublicaccess.southdowns.gov.uk instead.

Sources

Checked against the council’s planning pages and the live Public Access portal on 4 August 2026. Consultation deadlines and application statuses change, so confirm on the portal before relying on a date. Our guides to council tax bands, bin collection days and parking in Horsham cover the council’s other services.