Planning permission in Solihull is one of those things that seems simple until you start asking the right questions. Most homeowners assume their project is fine — and most of the time, they're wrong to assume. WhatCanIBuild exists precisely because the gap between "I think I'm fine" and "I actually know I'm fine" is wider than people realise.
The short version
- Whether you need permission depends on your specific property, not just the type of project
- Solihull has 387 listed buildings and significant Green Belt land — both carry restrictions most homeowners don't fully understand
- A £548 application fee and an 8-week decision window make getting it wrong expensive
"Permitted development" isn't a free pass
You've probably heard that some home improvements don't need planning permission — they're covered by "permitted development rights." That's true, in theory. But what most homeowners in Solihull don't realise is that those rights can be removed, restricted, or modified for individual properties, streets, or entire areas. Article 4 Directions can strip permitted development rights from your home without you ever being told. Conservation area designations change what counts as acceptable. And if your property has been extended before, previous work may already count against limits you didn't know existed.
The uncomfortable truth: there is no universal answer for Solihull. What your neighbour was allowed to do tells you almost nothing about what you can do.
Green Belt and listed buildings — do you know which applies to you?
Parts of Solihull fall within Green Belt land. Other areas sit near or within conservation zones. The borough has 387 listed buildings on record. If your property is listed — or even close to a listed building — the rules that apply to you are categorically different from those applying to an unlisted property two streets away.
Most homeowners have a rough sense of whether they live somewhere "historic," but rough senses aren't enough. The question isn't whether you're in a sensitive area — it's what that actually means for your specific project and your specific property. Those are very different things.
Don't assume your postcode tells the whole story
Solihull's postcodes span B36, B37, B90–B94, CV5, CV7, and CV8. Constraints like Green Belt boundaries and conservation areas don't follow postcode lines — they follow property boundaries. Two houses on the same street can face completely different rules.
The history of your property matters more than you think
Planning decisions aren't made in a vacuum. What's been approved or refused on your street — and why — shapes how any new application for your property is likely to be received. A loft conversion that sailed through for a neighbour might face objections on your plot because of how your house sits, how it was originally built, or what's already been changed.
This is where most DIY planning research falls apart. You can look up conservation area maps. You can find Article 4 directions on the council's website. What you can't easily piece together is how your property's specific combination of constraints has played out for real projects, on real homes nearby — and what that means for your approval odds.
The best way to get that picture is WhatCanIBuild, which surfaces what's actually been approved and refused near you, and why — not just what the rules say in the abstract.
What happens if you get it wrong?
Building without permission when you needed it isn't just an administrative headache. It can affect your ability to sell the property, require costly retrospective applications, and in some cases mean enforcement action to undo the work. At £548 per householder application and an 8-week decision window, the stakes of guessing wrong are real.
If you're at the stage of wondering whether you need permission at all, that uncertainty is itself a signal. The best way to move from uncertainty to confidence is to check what applies to your actual address — not a general guide about Solihull, but your property, your project, your street.
WhatCanIBuild shows you what similar projects nearby have looked like in practice — approvals, refusals, and the reasons behind them — so you're not navigating blind.
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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