Download OS MasterMap® in 15 Seconds - from £14.24

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OS MasterMap® is the most detailed professional mapping of all built and natural features in Great Britain, with more than 500 million real world objects. We offer one of the easiest ways to freely preview the mapping and download in seconds, see our reviews for proof. We provide OS MasterMap® in CAD formats such as DWG & DXF and also PDF, PNG & GML.

Coverage: GB
Formats: CAD (DWG & DXF), GML, PDF, PNG, SHP (please call)
Options: Colour, black & white
Printable scales: 1:100 – 1:10,000
Stated accuracy: Urban +/- 1m, rural +/- 2.5m, moorland / mountain +/- 8m
(CAD only):
‘Standard’ option – up to 20 key layers
‘Pro’ option – up to 67 layers
Projection: OSGB36 geodetic datum using Transverse Mercator projection
Grid: British National Grid
Themes: Buildings, roads, paths, water & natural features
Optional layers (CAD only): 1m contours, building heights, National Tree Map™, freehold boundaries, listed buildings
Licence options: 12 months (other options available on request)
Updates: Every 6 weeks
Delivery: Within seconds of ordering

Can I preview MasterMap® before ordering?
Yes we offer a free full screen preview before ordering. Others may charge for this.

How much does MasterMap® cost?
We offer substantially discounted pricing see here.

How often is MasterMap® updated?
It is updated on our site once every 6 weeks.

What formats do you offer MasterMap® in?
CAD formats like DWG and DXF, GML and image formats like PDF and PNG.

What do the colours represent?
A full key for MasterMap® is here.

How accurate is MasterMap®?
Full accuracy information is shown here.

What software do I need to view MasterMap®?
DWG and DXF formats require CAD software (such as Autodesk Viewer or AutoCAD). PDF requires an Adobe Acrobat Reader and GML files require GIS software or similar.

Read all FAQs here

MasterMap® DWG and DXF (for CAD)
MasterMap® GML (for GIS)
MasterMap® PDF and PNG formats

Practical Tools to Enhance Your MasterMap®


Auto Outline

Outline a property’s boundary on MasterMap quickly and accurately.


Additional layers to add to your OS MasterMap including contours, freehold boundaries, building heights and aerial photography.


Automatically fit MasterMap to your desired paper size and scale.


The Rectangle tool selects the portion of MasterMap that you wish to purchase. You can also use the Polygon or Set Area tools for a different shape of mapping.

Save Area

You can save MasterMap search for a future purchase and easy access using the reference name of your choice.

Snap to Point

Snap to point helps to outline a piece of your property accurately on OS MasterMap.

MasterMap’s Different Uses

The Telecoms Surveyor

‘I use MapServe to download the Ordnance Survey Mastermap in CAD format based around the mast site. I also use the preview maps and aerial photography on the site to establish access points for on-site visits.’

The Architect

‘I was previously with Promap but I switched to MapServe which is simple, quick and clear compared to the rest of the providers.’ I mainly order OS MasterMap in DWG format.

The Town Planner

‘I use MapServe's mapping service to download the OS Mastermap in DWG format based around the mast site. I also use the preview maps and aerial photography on the site to establish access points for on-site visits.’

The Transport Planning Consultant

‘I mainly use Mastermap in coloured and black and white DWG formats. I need mapping that covers ± 300 m from the site that I then upload to AutoCAD in order to create the appropriate plans.’

The Arboricultural Consultant

‘I use my integrated tree software to plot the trees and its positions and then I create different layers using the Ordnance Survey MasterMap on AutoCAD to create the reports. The plans that I get from MapServe work in correspondence with the reports that I write to my clients.’

Supported Software

3D studio max logo Adobe Acrobat logo Graphisoft Archicad logo Autodesk Autocad LT logo Autodesk Autocad logo Catia logo Autodesk Civil 3D logo Solidworks logo Edge logo Planxpress logo Pro Landscape logo QGIS logo Autodesk Revit logo Rhinoceros logo Sketchup logo Tinkercad logo Vectorworks logo