Built for UK field surveyors

Map your jobs. Work offline. Stay organised on site.

Grid Marks is a free map tool for planning and marking sites across the UK. Import spreadsheets, colour pins by due date, plan the day, download council street maps for no-signal areas, and jump to land register search — with no account required.

Free forever for everyday use. No login. Data stays on your device. Install to the home screen for field storage protection on iPhone.

Everything you need for a survey day

Built around real field workflow — not a generic pin app.

Marks that stay useful

Due-date colours (today / tomorrow / week / later), categories you define, list search, relocate, share links, and Street View from the pin.

Spreadsheet import

Bring jobs from Excel or CSV — grid refs, easting/northing, lat/lng, or UK postcodes. Column mapper handles messy real-world files.

Offline street maps

Download whole council areas for street-level maps with no signal. Save a small aerial patch of today’s work area when you need it.

Plan the day

Order stops for the route, see times and distances, export or print. Built for getting around sites efficiently.

Land register links

Open free public search for Scotland (ScotLIS map), England & Wales (HMLR), and Northern Ireland guidance — right from the pin.

Completed-work archive

Import historical work and see nearby records when you open a mark — useful context before you knock on the door.

How it works

No account setup. Open the app and start mapping.

1

Add or import marks

Drop a pin from search, GPS, grid ref, or import your job list from a spreadsheet.

2

Organise the day

Filter by due date or category, plan the route, and download offline maps for areas with poor signal.

3

Work on site

Open Street View, share a mark with a colleague, check land register search, and save the project when you’re done.

Free to use. No login.

We’re focused on growing a tool surveyors actually use in the field. Paid plans may come later for heavy power features — everyday mapping stays free.

Pro / teams

Coming later Optional, when it earns its keep

  • Heavier offline & bulk workflows
  • Road-routing day plans at scale
  • Full work archive tooling
  • Shared groups & collaboration

Nothing locked behind a wall today. You’ll hear about paid options when they’re ready — not before.

Your marks are stored on your device (and in project files you export). Install to the home screen on iPhone so Safari doesn’t clear storage after a week of inactivity.

Get in touch

Two mailboxes so enquiries and product feedback stay organised.

Ready for the next site visit?

Open Grid Marks in your browser — desktop or phone — and start marking in seconds.

Launch Grid Marks