Up to 300 homes approved at Rook Farm — with the detailed design still to come
The Hayling Island appeal decision is a useful example of what outline planning permission settles, and what developers still need to resolve.

Key takeaways
- Permission: Up to 300 homes
- Affordable housing: 30% secured by planning obligation
- Approval type: Outline; vehicular access determined
A permission issued after an appeal
An inspector granted outline planning permission for up to 300 homes at Rook Farm, off St Mary's Road on Hayling Island, on 14 August 2026. Havant Borough Council publishes the decision under appeal reference 6004299 and application APP/21/01434. The appeal concerned the council's failure to determine the application within the prescribed period.
The permitted proposal includes affordable housing, open space, children's play areas, landscaping, sustainable drainage and a new vehicular access. The appeal decision identifies Gladman Developments as the appellant. A planning obligation secures a 30% affordable housing requirement.
What the approval actually covers
The decision determines the principal vehicular access, while appearance, landscaping, layout and scale remain for later approval. It is therefore important to retain both words in the headline number: up to 300. The permission sets a maximum; the detailed scheme still needs to work within the approved parameters and conditions.
Government guidance explains that outline permission establishes the general principles of development, with specified details left as reserved matters. Those details can be submitted together or through separate applications. Illustrative drawings should not be presented to readers as an approved final design when the relevant matters remain reserved.
Conditions remain part of the project
The issued decision requires reserved-matters submissions within three years. It also sets requirements for matters including drainage, construction management and ecological mitigation. The public inquiry examined flood risk, access and road capacity, and effects on protected Solent habitats. The decision is the result of that specific assessment; it is not a general finding that every development on the island is acceptable.
Outline permission is a meaningful project milestone. It should sit in a development tracker alongside the subsequent reserved-matters and condition approvals, so a reader can see which stage has been reached without confusing permission with a construction start.
GoSiteHunt analysis: what to take from this case
First, put the approval stage beside the dwelling number in your research. A database entry saying only '300 homes approved' leaves out information that can change how the opportunity is understood. Record what has been decided, what remains open and the deadline for the next submission. That makes comparisons with fully detailed schemes more useful.
Second, work from the decision and its supporting evidence when reviewing a sensitive location. A map is a starting point for identifying questions about access, water or environmental constraints. It cannot explain on its own how a particular application addressed them. The reasoning in a real decision helps a project team identify the right investigations early.
Third, turn conditions into a delivery checklist. Give each outstanding item an owner, an evidence requirement and a place in the programme. That is our practical takeaway from this case, rather than a prediction about its commercial outcome. A well-organised site record should show the route from permission to implementation, and make the remaining work easy to understand.
Read the official sources
Planning decision: . Source check: . Follow the original records for conditions, supporting documents and subsequent changes.
About this story. The decision facts above come from the named official sources. Sections labelled GoSiteHunt analysis are our interpretation. A permission is specific to its site and conditions; it does not establish what another property can build or confirm that construction has begun.
Found a material update or correction? Contact GoSiteHunt with the article link and source.