National Grid


Meet the team: Mark Greaves

Continuing our series to introduce you to the hard-working individuals within OS and showcase the wide variety of work we do, meet Mark Greaves. Mark has been with us for over 30 years and is definitely a fountain of knowledge here at OS! Here, he gives tells us more about how he keeps OS Net running…

How long have you worked for OS?

I have been at OS over 32 years and within this time held differing roles. I started as a Field Surveyor for 7 years, I then spent 1 year doing a HND in Surveying, 3 years as a Geodetic Surveyor, 1 year studying for an MSc in Engineering Surveying & Geodesy and 17 years as Geodetic Analyst. 

How long have you been in your current role?

I have been a Lead Consultant for Geodesy for almost 4 years. Read More


It’s a stitch up! OS has Great Britain all sewn up

Using a wide range of techniques, our talented Craft Club have created a fantastic Great British Craftography Mapand we’re putting it up for auction to raise money for Solent Mind, our corporate charity. The crafty individuals recreated the Ordnance Survey National Grid into a 2.2m by 1.2m wall hanging. And you can now bid for the unique, mappy piece of art in an online charity auction.

OS Craft Club with their creation

OS Craft Club with their creation

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New electricity pylons being added to the map

We often talk about the 10,000 changes a day being captured in our database containing all of the features of Great Britain. It can be hard to grasp how that much change is taking place – until you think about all of the new roads and buildings under construction and then burrow down into the level of detail we capture – right down to phone boxes and even electricity pylons.


When National Grid announced that the first new electricity pylon design in 90 years was going to be erected in Nottinghamshire, we knew our surveying team would need to swing into action. Pylons not only feature in our large scale products, such as OS MasterMap for our business and government customers, but also in smaller scale products, like the 1:25,000 scale mapping in our OS Explorer maps used for outdoor activities. Read More