SashMark resources
Property buyer guides and tools
Practical information for researching a home, checking the asking price and preparing to make an offer.
Buyer guide
Check a property before you buy
The main price, property and local checks to make before committing.
Buyer guide
Is this house overpriced?
Assess an asking price using previous sales, comparable homes, size and market evidence.
Free tool
House offer calculator
Build a cautious offer range from comparable evidence, works and negotiating context.
Buyer guide
Check planning before buying
Understand nearby planning activity and what it could mean in practice.
Buyer guide
Check flood risk before buying
Review river, sea, surface-water and available historic evidence.
Buyer guide
Check noise before buying
Combine road and rail mapping with useful checks during a visit.
Check a real address
Research the property before you commit
Start with a free property preview. Full findings from £5.99.