Planning permission in Worthing isn't a simple yes or no — and most homeowners only discover that after they've already started making plans. The rules that apply to your property depend on a layered combination of national policy, local restrictions, and site-specific designations that vary street by street. WhatCanIBuild exists precisely because untangling that combination for your specific address is harder than it looks.
The short version
- Worthing has 26 conservation areas where external alterations face tighter controls
- 8 Article 4 directions affect specific streets, removing rights most homeowners assume they have
- Properties near or within the South Downs National Park boundary face additional restrictions
- 434 listed buildings in Worthing carry their own separate consent requirements
The rules you think you know probably don't apply the way you think
Most homeowners have heard of permitted development — the idea that certain smaller projects don't need planning permission. What they don't realise is how many layers of local restriction can quietly remove those rights without any obvious sign at street level. In Worthing, that includes 26 conservation areas covering large parts of the town, where even changes to windows, doors, or rooflines can require consent that wouldn't be needed elsewhere.
And if your property sits near — or inside — the South Downs National Park boundary, you may be on what's known as Article 1(5) land. That designation carries its own set of restrictions that apply on top of everything else. Most homeowners don't realise their property falls into this category until they've already assumed they're in the clear.
Article 4 directions are the rule most people have never heard of
Across Worthing, 8 Article 4 directions have been applied to specific streets. These are local decisions that remove permitted development rights in targeted areas — meaning projects that would be automatically allowed elsewhere require a full planning application here. The problem is that Article 4 directions aren't always obvious. They're not signposted outside your front door. Whether your street is affected, and what exactly it removes, depends entirely on your address.
If you live in one of these streets and carry out work assuming permitted development applies, you could be in breach of planning control — even if the same work was perfectly fine for your neighbour two streets away.
Listed Buildings
With 434 listed buildings in Worthing, listed building consent is a separate requirement from planning permission — and applies to internal as well as external works. If your property is listed, or shares a curtilage with a listed building, different rules apply entirely.
What's been approved nearby tells you more than general guidance ever will
Even when you understand which restrictions apply to your property in theory, that doesn't tell you how Worthing Borough Council has been treating similar applications in practice. What projects have been approved on your street? Which have been refused, and why? Are there conditions that tend to get attached to certain project types in your area?
That's the gap general planning guidance can't close — and it's where WhatCanIBuild goes further than anything else available. Rather than just flagging that you're in a conservation area, it shows you what that actually means for your specific project type, based on real decisions made on properties like yours.
If you're weighing up whether to extend, convert, or alter your Worthing home — and you want to know your actual odds before spending anything on architects or applications — WhatCanIBuild gives you a picture built around your address, not generic rules.
These rules vary by property
Conservation areas, Article 4 directions, and other constraints can change everything. Check what actually applies to your address.
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