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Click on map to recentre|Contains OS data © Crown copyright and database rights 2025

Ordnance Survey CAD Data in DXF or DWG — © Crown copyright and database rights 2025 OS AC0000848283

Ordnance Survey MasterMap Topography Layer® Vector Format in DWG / DXF / SHP / GML and GeoPackage for CAD and GIS systems

OS MasterMap Topography Layer® - CAD - Overview

OS MasterMap Topography Layer gives you access to the most detailed, current and comprehensive dataset of Great Britain in a CAD compatible format:

Designed for use with CAD or GIS software
OS MasterMap® Topography Layer in a layered vector format
Produced using Official Autodesk® Software so no more strange errors when opening in CAD
Georeferenced - meaning that the internal coordinate system of the data related to a geographic coordinate system (UK National Grid)
Optional height layers (contours and digital terrain model - OS Terrain 5)
Extended licence terms available: 1, 2 or 3 years
Unlimited outputting (eg PDFs) from CAD of any scale within the selected licence term

Alternative Products:

Works with:

AutoCAD by Autodesk
SolidWorks
Inventor
Revit
Civil 3D
MicroStation
CATIA
Creo
Adobe Illustrator
... all CAD and GIS Packages

OS DXF, DWG Samples

Product:	Ordnance Survey - DXF or DWG for CAD - OS MASTERMAP® Topography Layer with optional DTM & contours available
Base Mapping	OS MasterMap Topography Layer®
Scale	Any within CAD
Coverage	Full Great Britain coverage (sorry this excludes Northern Ireland - try OSNI)
Format	DXF or DWG for CAD
Software Required	CAD Autocad (or equivalent) or GIS
Product Price	From: £22.00 + vat
Delivery Method	Email
Turnaround Time	Email: Target time of 30 mins (7 days a week 7am to 11pm) - Larger files may take longer to generate
Currency	Current - Latest available direct from Ordnance Survey
Samples \| zips	Click here to download sample \| DWG Click here to download sample \| DXF Click here to download sample \| DWG Colour Click here to download sample - DTM Layer Only \| DWG Click here to download sample - DTM Layer Only \| DXF Click here to download sample - Contours Layer Only \| DWG Click here to download sample - Contours Layer Only \| DXF Click here to download sample - DTM Layer Only \| DWG Click here to download sample - DTM Layer Only \| DXF Click here to download sample - Mastermap with Contours & DTM \| DWG Click here to download sample - Mastermap with Contours & DTM \| DXF
Key Features	North arrow, Scale bar, Licence number, National grid coordinates
Uses	Designed for use with CAD software. OS MasterMap® Topography Layer in a layered vector format. Available as a DXF or DWG for CAD with an Optional height layer (contours and/or digital terrain model - utilising OS TerrainTM 5). This format is used by Architects and Planning Professionals who have the required software installed. Extended licence terms now available.
Number of Printouts	Unlimited outputs from CAD within the selected licence term (1, 2 or 3 years)
Options Info	Contours are generated from the OS Terrain® 5 using a third party application. They are not subject to Ordnance Surveys accuracy/specifications and are designed to provide a 2 dimensional guideline only. For 3D modeling it is best practice to use the DTM points rather as they have a Z(height) value attached to them
Licence Term	Please go to the Licence tab below
OS Terrain (Height)Accuracy	OS Statement: OS Terrain 5 has been measured against with GPS points in a range of sample areas to provide a root mean square error (RMSE) value for the height points in each geographic area; urban and major communication routes, rural, and mountain and moorland. Urban and major communication routes = 1.5 metres RMSE* Rural = 2.5 metres RMSE Mountain and moorland = 2.5 metres RMSE * Root mean square error. This is the average of the mean heights collected in a sample area. The contours are generated from the OS Terrain® 5 using a third party application. They are not subject to Ordnance Surveys accuracy / specifications and are designed to provide a 2 dimensional guideline only.
OS Terrain (Height Option): Further Reading	OS Terrain 5 User Guide \| OS Doc

Item	Permitted	Alternative Product / Notes
Digital submission to any online planning portal		Create as many outputs/scales as required - e.g. 1:500, 1:1250, 1:200 from the one purchased file
Add basic content to this Product -i.e. outline a property in red for purposes of planning permission.		Within a GIS setup or CAD package
GIS Use		Data already Georeferenced
Ready for CAD		Data already Georeferenced
Printing Extra Copies		Unlimited outputs/scales from your software within the licence term
Permit your Contractors to use the purchased Licensed Data		Contractor Form Below - Best Practice: Make sure you select the relevant number of users/terminals if using a contractor before purchase

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100 to 20000

Height

100 to 20000

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Select	Width (metres)	Height (metres)
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	250	250
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Ordnance Survey MasterMap Topography Layer® Vector Format in DWG / DXF / SHP / GML and GeoPackage for CAD and GIS systems

OS MasterMap Topography Layer® - CAD - Overview

Works with:

OS DXF, DWG Samples

Ordnance Survey Licensing

Select	Width (metres)	Height (metres)
	100	100
	125	125
	150	150
	170	170
	175	175
	185	185
	200	200
	225	225
	250	250
	275	275