Hastings looks straightforward enough — until you start digging into the detail. With 18 conservation areas, 570 listed buildings, and a coastline that brings its own complications, what applies to your neighbour's house could be completely different from what applies to yours. That's before you've even thought about whether your specific project triggers a planning application. Tools like WhatCanIBuild exist precisely because the answer is almost never as simple as a quick Google search suggests.
The short version
- Hastings has 18 conservation areas where normal rules don't apply
- 570 listed buildings are recorded across the borough — and their curtilages matter too
- What was approved on your street may have no bearing on your own project
- A householder application costs £548 and typically takes 8 weeks — getting it wrong is expensive
Why "permitted development" isn't as simple as it sounds
Most homeowners have heard the phrase "permitted development" and assume it means their project is probably fine. It might be. But permitted development rights can be removed, restricted, or never have existed for your property in the first place. Article 4 Directions can strip away rights that would otherwise apply. Conservation area designations change what you can do externally — and Hastings has eighteen of them covering large swathes of the borough, from the Old Town to parts of central Hastings and beyond.
Most homeowners don't realise that being just one street outside a conservation area and one street inside it can produce completely different answers to the same question.
Listed buildings and their hidden reach
Hastings has 570 recorded listed buildings. If you own one — or think you might — the rules extend far beyond the obvious. The listing often applies to the curtilage, outbuildings, and boundary structures, not just the main house. Works that would be unremarkable on an unlisted property can require listed building consent on top of any planning permission, and the consequences of getting this wrong are serious.
But even if your home isn't listed, being close to one can affect what Hastings Borough Council will approve. The relationship between neighbouring properties and heritage assets is exactly the kind of nuance that catches people out.
Don't assume the previous owners got it right
If works were carried out without the necessary permissions, that becomes your problem when you come to sell — or when you want to extend further. What looks like a clean history isn't always one.
The gap between "probably fine" and "definitely fine"
This is where most homeowners get into trouble. They read some general guidance, decide their project probably doesn't need permission, and proceed. Sometimes they're right. Sometimes they're not — and by the time they find out, the work is done.
The gap between general rules and what applies to your specific address in Hastings is significant. Flood zones, proximity to the coast, Article 4 Directions, conservation area boundaries, listed building curtilages — any one of these can change the answer entirely. And they combine in ways that aren't obvious until someone who knows what to look for actually checks.
WhatCanIBuild is the best way to understand not just whether your property has constraints, but what those constraints actually mean for your specific project — including what's been approved and refused for similar projects nearby, and what your realistic chances look like.
Knowing you're in a conservation area is one thing. Knowing what that means for a rear extension on a mid-terrace in TN34 versus a loft conversion on a detached house in TN38 is something else entirely.
Before you spend money on drawings or take a chance on permitted development, the best way to know where you actually stand is to check your specific address.
WhatCanIBuild gives you a clear picture of your property's planning history, local constraints, and approval patterns — the things this article deliberately can't tell you.
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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