Lidar Elevation data captured by aircraft is typically the most detailed elevation data available.

The Environment Agency captures Lidar Elevation data by aircraft on an ongoing basis for the purpose of creating up to date flood maps. The data is available with a resolution of up to 25cm depending on your study area (other Lidar resolutions include 2m, 1m and 50cm), and comes as both a DTM (Digital Terrain Model) - 'bare earth' - and a DSM (Digital Surface Model).

LIght Imaging Detection and Ranging (LIDAR) technology provides an extremely high vertical resolution for heights of buildings, vegetation and bare ground in open areas, as the surface detail within DSM has been left within the model. At such high resolutions it is possible to use this product for building heights modelling.

Open Government Licence: PDF

Technical Details

Supplier

Environment Agency

Update Cycle

Varies

Coverage

England and Wales (non-continuous coverage)

Scale

Resolutions from 0.25m to 2m

Formats Available

ASC, XYZ, TXT, DXF

Stated Accuracy

Stated Accuracy

Stated Accuracy

dependent on resolution

Licence Options

Open

Delivery Timescale

within minutes

Related Products

Aerial Photography, OS MasterMap Topography Layer

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Lidar Elevation data captured by aircraft is typically the most detailed elevation data available.

With a resolution of up to 25cm depending on your study area (other Lidar resolutions include 2m, 1m and 50cm) Lidar Elevation data captured by aircraft is typically the most detailed elevation data available.

emapsite supplies Lidar data from a range of commercial Lidar capture programmes from across Great Britain as both a DTM (Digital Terrain Model) - 'bald earth' - and a DSM (Digital Surface Model).

Technical Details

Supplier

Various

Update Cycle

Ad-hoc

Coverage

Scale

Resolutions from 0.5m

Formats Available

ASC, XYZ, TXT, DXF

Stated Accuracy

Stated Accuracy

Stated Accuracy

Dependent on resolution

Licence Options

Perpetual

Delivery Timescale

On request

Related Products

Aerial Photography, OS MasterMap Topography Layer

Download Samples

OS MasterMap is the most detailed, current and comprehensive map dataset of Great Britain, enabling you to make better decisions and manage your assets more effectively. Working with the other mapping layers in the suite, OS MasterMap Topography Layer gives you the visual context to help interpret addresses, routes and imagery. OS MasterMap is the approved dataset for planning applications and land registration.

Continually updated, OS MasterMap contains 450 million geographic features found in the real world, from detailed building and road outlines to water features, pathways, bus shelters and letter boxes.

OS MasterMap is ideal for:

• Use in CAD or GIS
• Planning
• Site location and evaluation
• Risk management
• Transport and infrastructure
• Asset management
• Environmental analysis

Technical Details

Supplier

Ordnance Survey

Update Cycle

6 weekly

Coverage

GB

Scale

1:1250

Formats Available

DWG, SHP, GML, TAB, DXF, GDB, KML, TIFF

Stated Accuracy

Urban +/- 1m

Stated Accuracy

Rural +/- 8m

Stated Accuracy

+/- 8m

Licence Options

12, 24 or 36 months

Delivery Timescale

Within minutes

Related Products

PDF Plans, Aerial Photography
Complementary Data
OS Mastermap Highways Network Layer, OS Mastermap Imagery Layer, Lidar, AddressBase Plus

Download Samples

OS Mastermap Highways Network is the Ordnance Survey's latest and most comprehensive dataset of Great Britain's road network and is the next generation of the well-known product OS ITN. It is comprised of a suite of products that brings together the best information from authoritative sources in to one central location.

In addition to road centre lines and classifications, Highways features richer content that is better structured to allow for analysis as well as visualisation. Highways has been designed with traffic analysis, asset management, planning and the emergency services in mind, allowing users to plan for tomorrow. It gives you accurate and precise asset management information on who maintains the road network and the type of surface reinstatement values. And it's a valuable reporting tool, for key facts and statistics about the road, against a consistent and authoritative base.

OS Highways - Roads can be extended using OS Highways - Routing, and OS Highways - Paths

OS Highways - Roads attribution includes:

• road classification, naming and numbering
• vehicle restrictions
• links to OS Addressbase and the USRN
• roads under construction
• public/private maintained roads
• special engineering difficulty
• special event information
• road hazards: overhead structures, level crossings, movable bollards, gates
• protected streets
• traffic sensitive roads

OS Highways - Routing additionally includes:

• turn restrictions

OS Highways - Paths additionally includes:

• links between roads/paths

Technical Details

Supplier

Ordnance Survey

Update Cycle

Coverage

GB

Scale

1:1250

Formats Available

Stated Accuracy

Stated Accuracy

Stated Accuracy

Licence Options

Delivery Timescale

Related Products

PDF Plans, Aerial Photography
Complementary Data
OS Mastermap ITN, OS Mastermap Imagery Layer, Lidar, AddressBase Plus

Download Samples

​​Combining National Land and Property Gazetteer (NLPG) and Royal Mail Postcode Address File (PAF), for the full lifecycle of an address.

AddressBase Premium provides the most detailed view of an address and its life cycle for England, Wales and Scotland. The product contains approximately 40 million addresses, each with UPRN unique identifier. Includes alternative addresses (e.g. where a property known as Rose Cottage is also 23 Acacia Avenue), provisional addresses (proposed planning developments), historic addresses (demolished properties) and objects without a postal address (e.g. places of worship, community centres and utilities).

The new Address products have been produced by GeoPlace, a joint venture between Ordnance Survey and the Local Government Group.

The AddressBase™ Premium product includes the best parts of local government’s National Land and Property Gazetteer (NLPG), Ordnance Survey’s OS MasterMap Address Layer 2 and the Royal Mail Postcode Address File (PAF), plus comprehensive address classification details.

AddressBase™ Premium is the most comprehensive product in the range and is an entirely new concept in the world of addressing for GB. AddressBase™ Premium is a relational database detailing the whole lifecycle of an address from pre-build through completion and successive name changes of businesses. Suitable for use in interrogating for bespoke services, Emapsite can provide access to this valuable dataset through our web services delivery solutions. Please call us for more details​.

Technical Details

Supplier

Ordnance Survey

Update Cycle

6-weekly

Coverage

GB

Scale

1:1250 to 1:10,000

Formats Available

CSV, GML

Stated Accuracy

Stated Accuracy

Stated Accuracy

Sub-metre

Licence Options

Delivery Timescale

Within minutes

Related Products

Complementary products
OS Mastermap Highways Layer, OS Mastermap Imagery Layer,

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The aerial images give added context to features which exist within other (vector) OS MasterMap layers and allow interpretation of other features not identified within the vector datasets. The data is rigorously checked for quality to maintain a consistent standard of both positional accuracy and image quality.

Additionally Ordnance Survey processing software produces true-orthorectified imagery, removing building lean from aerial imagery to give you a consistent top-down view.

Aerial imagery is ideal for checking road markings, tree canopies or site entrances, cutting down the need for site visits, so you can save money and manage time more efficiently.​

Purchasable as both a traditional raster cut-out of a user defined area or as web services.

OS MasterMap Imagery layer is ideal for:

• Planning
• Site location and evaluation
• Land use classification and analysis
• Transport and infrastructure
• Asset management
• Environmental analysis
• Flood mapping
• 3D visualisation

.

Technical Details

Supplier

Ordnance Survey

Update Cycle

Quarterly

Coverage

GB

Scale

25cm resolution

Formats Available

Stated Accuracy

Stated Accuracy

Stated Accuracy

Licence Options

Delivery Timescale

Related Products

PDF Plans, Aerial Photography
Complementary Data
OS Mastermap Highways Layer, OS Mastermap Imagery Layer, Lidar, AddressBase Plus

Aerial photography 25cm

Complementary Products

OS MasterMap Topography Layer, OS MasterMap Highways Network, AddressBase Plus, National Tree Map​

Download Samples

OS MasterMap is the most detailed, current and comprehensive map dataset of Great Britain, enabling you to make better decisions and manage your assets more effectively. Working with the other mapping layers in the suite, OS MasterMap Topography Layer gives you the visual context to help interpret addresses, routes and imagery. OS MasterMap is the approved dataset for planning applications and land registration.

Continually updated, OS MasterMap contains 450 million geographic features found in the real world, from detailed building and road outlines to water features, pathways, bus shelters and letter boxes.

OS MasterMap is ideal for:

• Use in CAD or GIS
• Planning
• Site location and evaluation
• Risk management
• Transport and infrastructure
• Asset management
• Environmental analysis

OS Terrain 5 is ideal for:

OS Terrain 5 is particularly valuable for large scale development projects, planning, impact assessment

OS Terrain 5 offers detailed modelling of significant features such as road, rail, quarries and lakes​ allowing you to asses the lie of the land on-screen and reduce the need for site visits. OS Terrain 5 has a root mean square error (RMSE) value of 1.5 metres in urban areas and major communication routes. 

OS Terrain 5 is maintained as part of the same revision process as the Ordnance Survey's large scale datasets and so adds a valuable third dimension to OS MasterMap Topography Layer.

Licence: PDF

Technical Details

Supplier

Ordnance Survey

Update Cycle

6 weekly

Coverage

GB

Scale

1:1250 (OS MasterMap) and 5m (Terrain 5)

Formats Available

DWG, SHP, PDF

Stated Accuracy

Urban +/- 1m (OS MasterMap)

Stated Accuracy

Rural +/- 8m (OS MasterMap)

Stated Accuracy

+/- 8m (OS MasterMap)

Licence Options

12, 24 or 36 months

Delivery Timescale

Within minutes

Related Products

PDF Plans, Aerial Photography, OS MasterMap Highways Layer, OS Mastermap Imagery Layer, Lidar, AddressBase Plus

Download Samples

The OS MasterMap Water Network​ is the only detailed, heighted water network of Great Britain showing the flow and precise course of rivers, streams, lakes and canals.​ 

It offers the most accurate view of all watercourses across the whole of Great Britain created, in collaboration with the Environment Agency and Scottish Environmental Protection Agency, to a consistent specification and update schedule – so it can help support flood risk management decisions and the sharing of information between national and local organisations.

Accurate physical properties of watercourses enable modelling in 2D and 3D like never before, thanks to the clear and detailed information about river flow, gradient and river widths, along with its precisely mapped course.

The data maps a wide range of features, from aqueducts to tunnels with full flow direction and for the first time the network of underground watercourses – inferred from the entry and exit points.

OS MasterMap Water layer is ideal for:

Planners, for surveyors, for engineers – this Layer offers the potential to model in 2D and 3D like never before, thanks to the clarity of river flow, gradient and river widths.

Technical Details

Supplier

Ordnance Survey

Update Cycle

Coverage

GB

Scale

1:1250

Formats Available

DWG, SHP, GML, TAB, DXF, GDB, KML, TIFF

Stated Accuracy

Urban +/- 1m

Stated Accuracy

Rural +/- 8m

Stated Accuracy

+/- 8m

Licence Options

12, 24 or 36 months

Delivery Timescale

Within minutes

Related Products

OS Mastermap, Aerial Photography, OS Mastermap Imagery Layer, Lidar

Download Samples

OS MasterMap NON-GEO provides an image of the most detailed and accurate view of Great Britain's landscape without geo-reference information. Shows man-made and natural features such as buildings, fields, fences, bodies of water and objects such as letter boxes (plus intangible objects, such as county boundaries and the lines of mean high or low water).

Suitable for map illustration in display and printing applications at map scales between 1:500 and 1:5 000.

Available for bespoke areas-of interest and with a maximum orderable area of 100 hectares (1km2). 

Ideal for use in:

• Word processing and graphic design applications.
• Map illustrations in brochures and guides, site location/evaluation reports and risk management reports.

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Technical Details

Supplier

Ordnance Survey

Update Cycle

Every 6 weeks

Coverage

GB

Scale

1:1250 to 1:10,000

Formats Available

JPG, TIF, PNG, BMP (Colour) and JPG, TIF, BMP (Black&White)

Stated Accuracy

Stated Accuracy

Stated Accuracy

Licence Options

Annual

Delivery Timescale

Within minutes

Related Products

OS MasterMap Topography Layer

Download Samples