Bill B

Google search suggests this has been requested for years. Seems like a fairly basic layout tool that should be implemented.

If you are in the UK.... For decent terrain data, the best source is LiDAR from DEFRA: https://environment.data.gov.uk/DefraDataDownload/?Mode=survey Not too sure on the extent of it - basically you have to draw in an outline of the area you are interested in then click 'get available tiles' to see what the options are. There is also Scottish LiDAR data (which at present is more patchy) here: https://remotesensingdata.gov.scot/data#/map Both are free and as good as you can get in terms of terrain. DTM is a Terrain model. DSM is a 'surface' model which includes buildings (usually with 'sawtooth' edges due to the resolution of the data) and spiky pyramidal trees, for the same reason. You don't get any vector-based outlines of roads and buildings, but aerial photography may be enough. Otherwise you will have to purchase OS Mastermap vector data in DWG or SHP format, which is fairly expensive but not too bad for the kind of small areas you are describing. You can purchase this from a variety of OS mapping suppliers - just Google. Hope that helps.