Planning Tools
Planning application tools and property calculators
Start with the tools that help you choose the right planning map and scale, then use the wider property calculators for budgeting extensions, self-builds, and access works.
Planning Application Tools
Choose the right map before you buy
These decision tools are built for homeowners, architects, and planning consultants who need to work out the correct planning map route quickly.
Property Boundary Finder
Preview an HM Land Registry general-boundary polygon on satellite imagery for free, then carry the exact address and boundary into the full report.
Boundary Finder Report
Check a registered general boundary using HM Land Registry INSPIRE data and receive a PDF with coordinates, distances, and a fencing guide.
Party Wall Agreement Builder
Answer a few questions about your project and neighbours to get bespoke party wall notices and a consent agreement pack, ready to serve.
Red Line Boundary Tool
Draw a red-line boundary around your site, check the enclosed area, and make sure it covers the whole planning unit and access.
Boundary Drawing Service
Not confident drawing your site boundary? Ask our team to prepare the planning map for you and review it before payment.
Free Site Plan Preview
Generate a free, watermarked site plan preview from official OS mapping, then upgrade to a council-compliant plan.
Which Planning Map Do I Need?
Work out whether your project needs a site location plan, block plan, CAD mapping, or the full planning-map pack.
Planning Map Scale Chooser
Check whether 1:1250, 1:2500, 1:500, or a paired scale set is the right fit for your planning submission.
Property Cost Calculators
Budget the wider project once the map route is clear
Keep the existing calculators for extensions, self-builds, rebuilds, and access costs. They remain indexable but sit behind the planning-first tools.
House Extension Cost Calculator
Estimate the cost of your home extension based on size, common UK build rates, and specification choices.
Building Extension Calculator
Calculate the cost of your building extension setup, finish quality, and extra fit-out elements.
House Build Calculator
Find out the estimated cost to build a brand new house on your plot, tailored to sizes and materials.
Self Build Calculator
Planning a self-build project? Get an instant cost estimate based on modern UK self-build averages.
Cost to Rebuild a House
Estimate the demolition and complete rebuild cost for replacing an existing dwelling entirely.
Dropped Kerb Cost Calculator
Find out the typical costs for installing a dropped kerb (vehicle crossover) for a new driveway.