Planning permission in Hart isn't a simple yes or no — and most homeowners only discover that after they've already started making plans. With 39 conservation areas, 47 Article 4 directions, and 1,901 listed buildings spread across postcodes like RG27, GU51, GU52, RG29 and GU46, the rules that apply to your property could be completely different from those applying to your neighbour's. WhatCanIBuild cuts through the complexity by showing you what's actually been approved and refused for properties like yours — not just the general rules.
The short version
- Hart has 39 conservation areas covering many streets across the district
- 47 Article 4 directions strip back standard permitted development rights in specific locations
- Nearly 2,000 listed buildings recorded — and being near one can affect you too
- What applies to your property depends on its specific combination of constraints
Permitted development isn't a free pass
Most homeowners assume that if a project is "permitted development," they're fine to go ahead. In Hart, that assumption is risky. Article 4 directions exist precisely to remove those permitted development rights in certain areas — meaning works that would normally not need permission suddenly do. There are 47 of these directions active across the district. Do you know whether your street is covered by one? Most people don't, and there's no obvious way to tell from the outside.
Conservation areas change everything — but not the same way everywhere
Hart has 39 conservation areas. That's an unusually extensive heritage footprint for a district of its size. If your property sits within one, restrictions on external alterations can be significantly tighter — but the degree varies by area, by street, and sometimes by the specific works you're proposing. Even properties on the edge of a conservation area can be affected in ways that aren't immediately obvious.
And then there are the listed buildings. Nearly 2,000 are recorded in Hart. If your home is listed, or even close to a listed building, the planning implications shift again — in ways that a general guide simply can't tell you.
Don't assume distance protects you
Being outside a conservation area or not owning a listed building doesn't mean you're unaffected. Curtilage, setting, and proximity all create obligations that catch homeowners off guard.
The gap between knowing your constraints and knowing your chances
Even if you know you're in a conservation area, or that an Article 4 direction applies to your street, that's only half the picture. The more useful question is: for your specific project type, on your specific property, what actually gets approved in Hart?
That's where the detail matters. Similar-looking extensions on the same road can have completely different outcomes depending on past decisions, officer discretion, and how neighbouring applications were handled. WhatCanIBuild surfaces that local approval and refusal history — not just the rules on paper, but what they mean in practice for your address.
If you're planning any external works — an extension, a loft conversion, a porch, changes to windows or cladding — the combination of constraints in Hart means the stakes of guessing wrong are real. A householder application costs £548 and takes around 8 weeks. That's before you factor in architect fees, contractor delays, or the cost of undoing unauthorised work.
WhatCanIBuild shows you what your property's specific situation actually looks like — the constraints that apply, what's been approved nearby, and what your project's realistic chances are in Hart.
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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