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Understand whether a site needs planning permission, what constraints apply and what similar applications nearby have been approved or refused — all in one search.
Researching planning permission means answering three questions for a site: does the proposed work need permission at all, what constraints could affect whether it's granted, and what has been approved nearby before. Maplify answers all three from one search — checking permitted development rights against Article 4 directions and conservation area status, overlaying every relevant planning constraint, and surfacing live and historic planning applications for the same area.
Whether you're a homeowner checking an extension, a small developer assessing a plot, or a consultant preparing a formal application, this workflow replaces hours of navigating separate government portals with a single, structured search.
| Task | Traditional Method | With Maplify |
|---|---|---|
| Check Green Belt & conservation status | Search separate council and Historic England mapping portals, cross-reference boundaries manually | One map, layers switch on instantly with clear boundaries |
| Check flood risk | Visit the Environment Agency flood map service and manually locate the site | Flood zone overlays the same map, one click away |
| Find similar planning applications nearby | Search the local council's planning portal individually for each nearby address | Live planning applications shown as pins on the map around your site |
| Check local plan allocations | Download and search a lengthy PDF local plan document | Site allocations shown directly as a map layer |
| Total research time | 2-4 hours across multiple websites | 10-15 minutes on one platform |
A planning application prepared without understanding the site's constraints is far more likely to be refused, or to receive a request for further information that delays the decision by weeks. Researching thoroughly upfront — and citing the right designations in the supporting statement — gives an application the best chance of a straightforward, timely decision.
For homeowners and small developers without a planning consultant, this research is often the difference between confidently submitting an application and being caught off guard by an unexpected objection from the local planning authority.
A homeowner wants to build a rear extension on a Victorian terrace house. Before instructing an architect, they search the address on Maplify.
Search the site address or postcode on the map.
Check Green Belt, conservation area, Article 4 and listed building status.
Review flood risk and any other environmental constraints.
Use the Planning Application Finder to see nearby precedent decisions.
Check local plan site allocations if the proposal involves new development.
This is general guidance, not professional or legal advice — confirm specifics with the relevant authority or a qualified professional.
Homeowners
Check whether an extension or alteration needs planning permission before instructing an architect.
Planning Consultants
Build a fast, evidence-based constraints picture for a client instruction.
Small Developers
Screen a plot's planning viability before committing design fees.
Architects
Understand constraints before concept design begins.
Explore other ways professionals and homeowners use Maplify.
How do I check if a site needs planning permission?
Most new building work, changes of use and significant alterations require planning permission unless they fall under permitted development rights. Search the site on Maplify to check Article 4 directions, conservation area status and other designations that can remove permitted development rights.
What planning constraints should I research before applying?
Green Belt, conservation areas, listed buildings, flood zones, Article 4 directions, Tree Preservation Orders and local plan site allocations are the most common constraints that affect whether and how a planning application will succeed.
Can I see past planning applications for a site or area?
Yes. Maplify's Planning Application Finder shows live and historic planning applications from planit.org.uk, letting you check precedent decisions for similar development nearby.
How do I find out what a local plan allocates a site for?
Maplify overlays housing allocations and site references from adopted local plans directly onto the map, so you can see whether a site is already earmarked for a particular use.
Does Maplify tell me if my planning application will be approved?
No. Maplify surfaces the constraints and policy context relevant to a decision, but the outcome of a planning application depends on the local planning authority's judgement against national and local policy. Use Maplify to prepare a stronger, evidence-based case.
How long does planning permission research normally take?
Checking Green Belt, flood risk, heritage and local plan data across separate government websites can take several hours; the same research on Maplify typically takes 10-15 minutes.
Check planning constraints and precedent applications for any UK site in minutes.
