South West · Postcode district TR21
Planning Constraints in TR21St Mary's
St Mary's sits in the TR21 postcode district, South West, home to around 1,723 people. Before you buy, extend, or apply for planning permission here, check what applies to the exact address — conservation status, flood risk, heritage protection and more — using official government data.
What we check in St Mary's
The free checker tests around 40 open datasets against your exact pin, not just the postcode district as a whole. Here’s what’s covered.
Heritage
- ·Conservation areas
- ·Listed buildings
- ·Scheduled monuments
- ·Article 4 directions
Flood risk
- ·Flood Zone 2 (medium probability)
- ·Flood Zone 3 (high probability)
Ecology & trees
- ·Sites of Special Scientific Interest (SSSIs)
- ·Ancient woodland
- ·Tree Preservation Orders
Land designations
- ·Green belt
- ·AONB / National Landscapes
- ·National Parks
And more
- ·Special Areas of Conservation
- ·Coal mining risk areas
- ·Air Quality Management Areas
- ·Nearest schools
Frequently asked
Is St Mary's in a conservation area?+
Conservation area boundaries in England are drawn street by street, so whether a specific address in St Mary's (postcode district TR21) falls inside one depends on the exact pin. The free checker plots the boundary on a map so you can see immediately whether your address is inside, and how close the nearest one is if not.
How do I check flood risk for a property in TR21?+
Enter or click the address in the free checker to see Environment Agency Flood Zone 2 and Flood Zone 3 mapping for that exact point in St Mary's. It shows whether the property sits inside a flood zone and, if it's clear, the distance and direction to the nearest one.
Are there listed buildings near St Mary's?+
South West has listed buildings ranging from Grade II to Grade I, and they can sit right next to unlisted properties. Search the address in the checker to see every listed building nearby, its grade, and its distance from your pin — sourced from Historic England's National Heritage List.
What does the Site Report Pass add for TR21?+
The free checker covers every designation above at no cost. The £9.99 Site Report Pass turns a single search into a downloadable PDF with plain-English notes on what each result means, recommended next checks, and the underlying data as CSV — handy for a mortgage application, planning pre-app, or due diligence file.
Nearby postcode districts
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