3D Laser Scanning Specialists, Experts in Topographical,
Measured Building, Area & Lease Surveys, Monitoring &
Deformation and much more

OS Background

N D Oliver & Co Ltd, Chartered Land Surveyors, are experts in the collection, organisation, presentation and delivery of spatial data. The quality of our survey data presentation is a key factor in explaining why over 80% of our work is repeat business. Our clients get what they need and they keep coming back for more.

Increasingly, clients are requesting that their survey is tied into OS background mapping.

You may need this for:

» National Grid coordinates
» flood risk assessment surveys
» planning applications
» lease and title plans
» visual impact surveys
» as-built records
» utility surveys and records
» topographic site surveys
» visualisation surveys, photo verification
» right to light surveys
» other specific requests

View samples of Surveys with OS backgrounds.

Tying in a survey to OS background mapping is not necessarily the same as providing National Grid coordinates for your survey. The deliverables have subtle differences that can and do cause problems for the ill informed. We always prefer to discuss with clients, which deliverable suits best their intended use of the survey. You may in fact need both, no problem.

» a Local Plane Grid based on a Best Fit of the survey to the OS background mapping
not reduced to sea-level scale factor removed» National Grid coordinates based on a Best Fit of the survey to the OS background mapping.
reduced to sea-level containing scale factor

We use real-time, networked and post-processed GPS as well as reflectorless Total Stations.

Contact us today to discuss your needs.