OS MasterMap CAD and GIS
Plan professional OS MasterMap CAD and GIS data cuts across DWG, DXF, GeoPackage, Shapefile, GML, GeoTIFF and vector PDF formats.
View CAD and GIS formats
OS CAD Planning Maps
Download OS CAD Maps
in DWG & DXF
Acceptance Guarantee
Choose licensed Ordnance Survey CAD mapping at scales from 1:200 to 1:10000. Receive georeferenced DWG and DXF linework for architectural, planning and consultant workflows.
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| Planning ready
Council Ready
For all UK councilsInstant Download
PDF & CAD FormatsSite & Block
All Standard ScalesExtensionsNew BuildsDropped KerbsLand RegistryLease PlansGarage ConversionsBoundary DisputesChange of UseGarden Rooms
Location Plan
Scale 1:1250 @ A4
OS-2025-8X92
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Meets UK Planning Requirements
Official Partner • Licensed Ordnance Survey Map
Preview & Download in 60 Seconds
UK Planning Ready
OS Licensed
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- Select the right size coverage, to cover the WHOLE land
- Draw a clean red boundary or use our auto select tool
- If possible, ensure 2x road names are visible
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Search an address to begin
CAD 1:1250 · 3 haFree email delivery
By clicking "Buy & download now", you agree to our terms, refund and corrections policy.
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Search an address to begin
CAD 1:1250 · 3 haFree email delivery
By clicking "Buy & download now", you agree to our terms, refund and corrections policy.
OS CAD maps UK
Editable OS mapping for CAD and planning workflows
PlanningMapsUK generates licensed Ordnance Survey CAD map extracts as georeferenced DWG and DXF linework. They are designed for architects, planning consultants, surveyors and development teams that need an editable mapping base instead of a fixed PDF.
Choose the site, scale and coverage online, preview the area and order the files without waiting for a manual quotation. The map is positioned in OSGB36 British National Grid coordinates and supplied in metres.
DWG vs DXF vs PDF maps
The right format depends on what happens after the map is delivered.
| Format | Best for | Editable | Georeferenced | Typical next step |
|---|---|---|---|---|
| DWG | AutoCAD-led architecture and engineering workflows | Yes | Yes | Add design, dimensions and drawing sheets |
| DXF | Exchanging drawing data between CAD applications | Yes | Yes | Import into the receiving software and check units |
| Fixed-scale review and planning-submission sheets | Limited | No | Upload or print at the stated paper size |
What is included in an OS CAD map?
Standard linework is generated from OS MasterMap Topography data. It can include mapped building footprints, roads, paths, structures, land-form features, walls, fences, vegetation features and cartographic text for the selected area.
- Buildings and structures: detailed mapped footprints for the site and surrounding context.
- Roads and paths: carriageway, footway and route linework relevant to access and layout work.
- Physical features: mapped walls, fences, vegetation and other topographic detail where present in the source.
- Optional contours: OS Terrain 5 contour linework can be added when terrain context is needed.
OS topographic linework is not a legal property-boundary record and does not replace a measured topographical survey. Check the map against current site conditions and use the appropriate specialist data for title, level or construction decisions.
Common CAD map scales and prices
These current options show how scale and coverage affect the order.
| Scale | Coverage | From | Typical use |
|---|---|---|---|
| 1:200 | 0.1ha | £14.95 | Detailed compact site |
| 1:500 | 0.81ha | £29.95 | Block plan or site layout |
| 1:1250 | 3ha | £59.95 | Wider planning context |
| 1:2500 | 20ha | £235.95 | Large or rural sites |
Larger coverage tiers are available. Prices shown are for the stated entry option and may change when extra layers are selected.
Four-step workflow
How to download an OS CAD map
- 01
Find the site
Search the address or postcode and confirm the correct map position.
- 02
Choose coverage
Select the scale and area that includes every feature needed by the design team.
- 03
Check options
Review DWG and DXF delivery and add contours or other available data only when required.
- 04
Download the files
Complete checkout, follow the order status and open the delivered CAD files in your chosen software.
OS CAD map FAQs
What is an OS CAD map?
An OS CAD map is editable linework generated from licensed Ordnance Survey mapping and supplied for use in computer-aided design software. PlanningMapsUK delivers DWG and DXF files positioned in OSGB36 British National Grid coordinates.
What is the difference between DWG and DXF?
DWG is AutoCAD's native drawing format. DXF is a drawing interchange format used to transfer drawing information between CAD applications. PlanningMapsUK supplies both formats with the same mapped area.
Can I use an OS CAD map as a topographical survey?
No. OS MasterMap provides detailed topographic mapping, but it is not a site-specific measured survey. Use a professional topographical survey when design or construction depends on precise levels, drainage, structures or setting-out dimensions.
Do CAD maps show legal property boundaries?
No. Mapped walls, fences and other physical features are topographic detail and should not be treated as legal ownership boundaries. Use the appropriate Land Registry documents or boundary data when title extent matters.
Are the DWG and DXF files georeferenced?
Yes. The CAD linework is positioned in OSGB36 British National Grid coordinates and supplied in metres. Check the receiving drawing units and coordinate settings when importing it into another project.
Can I add contours to my CAD map?
Yes. OS Terrain 5 contours are available as an optional separate layer for projects that need terrain context. They are not included automatically in the standard MasterMap linework.
Internal Linking Hub
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