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Trees play a vital role in day to day life - improving the air we breathe, providing valuable habitats for our wildlife, and conserving energy by naturally cooling nearby buildings. However, they also pose a risk to properties, networks and subterranean assets, by causing subsidence or pipeline fractures through root damage, and endangering overhead lines through trees falling and loose branches. It is therefore essential that those involved in tree and vegetation management have access to the most accurate and comprehensive data available.

Bluesky’s National Tree Map™ (NTM™) is the most detailed dataset of its kind ever produced. With coverage across the whole of the Republic of Ireland, NTM™ provides a unique, comprehensive database of location, height and canopy/crown extents for every single tree 3m and above in height.

Created from our high resolution national aerial photography, accurate terrain and surface data, and colour infrared imagery, using innovative processing techniques, NTM™ is already being used across a variety of  sectors including insurance, utilities, forestry, government, planning, and environmental management.

NTM™ is updated regularly as new aerial photography becomes available through our cyclic update program, ensuring that it remains the most detailed, comprehensive and up-to-date tree map ever.



  • Idealised circular shaped crowns


  • Polygons representing tree crowns


  • Height point



For every tree:


NTM ID | Max Height | Mean | STD

Perimeter | Area



National Tree Map can be combined with other Bluesky products to make stunning 3D visualisations.


  • Trees over 3m in height​

  • Measurements of location, height and canopy spread

  • Idealised crowns

  • Detailed crowns​

  • Height points

  • Created from stereo aerial photography

  • ITM Projection

  • Vector format – ESRI .shp as standard


  • Tree management (including TPOs)

  • Canopy coverage analysis

  • Insurance risk assessment

  • Utility asset management

  • Impact on utilities & overhead lines

  • Visualisation and Modelling

  • Flood and pollution modelling


  • Unique product – the only tree map in Ireland

  • Easy-to-use vector data

  • Compatible with Ordnance Survey products

  • Flexible licensing

  • Continually updated

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