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Map Layers

How can I view the Orbital Witness map layers & where does the data come from?

Updated over 2 years ago

Instantly overlay map layers on the map to better understand the considerations affecting your plot. These map layers are to be used for indicative purposes only.

Where does the data come from?:


Title Boundaries on the Map (which is used for the "draw on map" search feature) are from the National Polygon Service (aka Map Search) and are updated monthly. You can check when data was updated at the bottom-right of the map "Boundary data for indicative user only - updated MONTH". Boundaries should reflect what you see on Map Search and (like Map Search) are for indicative use only. Recent leaseholds title boundaries often reflect the extent of the freehold or parent leasehold, rather than the specific leasehold.

Road Adoption Status and Public Rights of Way information is taken from Ordnance Survey. They periodically collect digital data from Highways England and Local Authorities across England and. This information is for indicative use only and does not show the extent of an adopted road. You can check when data was updated at the bottom-right of the map.

Listed buildings information is taken from Historic England. When hovering over a listed building you will immediately receive the name, address, record number, grade and date of first listed. If you click on the listed building it will take you directly to the entry on Historic England where you will obtain more information such as county and district. This will be useful for knowing which local authority you need to obtain listed building consent from.

Scheduled Monuments include above and below-ground features, from burial mounds to medieval castles, hillforts, monasteries or abandoned villages to sites of more recent human activity such as collieries and Second World War defence fortifications. Any works affecting a scheduled monument will require Scheduled Monument Consent. For more information on Scheduled Monuments click here.
The data is sourced from Historic England. As you hover over a scheduled monument you will immediately receive the name of, entry number and date of first listed. If you click on the scheduled monument, you will go directly to the Historic England entry where you can obtain further information.


Conservation Areas exist to manage and protect the special architectural and historic interest of a place - essentially, what makes it unique. There are around 10,000 in England. This data is taken from Historic England. When hovering over a conservation area you will know the name, the local planning authority, designated date and last updated date.

Flood Risk is a risk of combination of the probability and the potential consequences of flooding. The data is sourced from the Department for Food, Environment and Affairs. When hovering over the flood zone 2 & 3 you will get the model of flood zone i.e. fluvial floods (when the water level in a river, lake or stream overflows onto neighbouring land), pluvial floods (heavy rain causes flooding independent of any body of water) and coastal floods (coastal areas by the sea) and with flood risk rivers and sea and surface water you will receive a risk rating ranging from low to high.
Flood zone 2 - Areas within Flood Zone 2 have a medium probability of flooding. The annual probability of flooding from rivers is between 1% and 0.1%, and an annual probability of sea flooding is between 0.5% and 0.1%.



Flood zone 3 Areas within Flood Zone 3 are held to have a 1% or greater annual probability of flooding from rivers and a 0.5% or greater probability of flooding from the sea.

Flood risk river and sea


Flood risk surface water

Flood Zones and Planning Permission Pursuant to the NPPF local planning authorities would prefer for houses not to be built on flood plains. If you plan on building in flood zones 2 or 3 you'll need to complete a flood risk assessment at first instance. Your plan will need to demonstrate the pass of the 'Exception Test' detailing the potential impacts on your development if flooding occurs, that the building won't increase the likelihood of flooding and whether there are any flood risk management measures installed to protect from any future flood events - to name a few!.

Common Land (sourced from Natural England) is owned, for example by a local council, privately, or by the National Trust. You usually have the right to roam on it. This means you can use it for certain activities like walking and climbing. Common Lands have differing rights, so you may be able to use if for other activities such as horse riding. You cannot:
- Camp on common land without the owner's permission
- Light a fire or have a barbecue
- Hold a festival or other event without permission
- Drive across it without permission unless you have the right to access your property


Ancient Woodland (sourced from Natural England) takes hundreds of years to establish and is defined as an irreplaceable habitat. It is a valuable natural asset important for wildlife (which include rare and threatened species), carbon capture and storage, contributing to seed bank and genetic diversity, recreation, health and wellbeing, and cultural, historical and landscape value. Ancient Woodland affects planning permissions, the following are considered:
- Conserving and enhancing biodiversity
- Avoiding and reducing the level of impact of the proposed development on ancient woodland and ancient and veteran trees.
Planning permission should be refused if the development will result in the loss or deterioration of ancient woodland, ancient trees and veteran trees.

Areas of Outstanding Natural Beauty (AONBs) Areas of outstanding natural beauty (AONBs) are areas of countryside in England and Wales outside national parks which are designated in recognition of their significant landscape value. The primary purpose of AONB designation is ‘to conserve and enhance the natural beauty of the landscape. Permitted development is allowed in an AONB; however, there are significant limits on the size of extensions and the size of outbuildings. Side extensions are not allowed under permitted development in an AONB. Rear extensions under permitted development are limited to 4 metres on detached dwellings and 3 metres on all other dwellings. You can build houses in an AONB; however, planning permission is rarely granted for new houses in the open countryside. New and replacement dwellings must not be unduly prominent, so architectural volumes need to be broken-up and reflective surfaces should be kept to a minimum. Large extents of glazing that may cause light pollution should also be avoided, as many AONB’s have been designated as Dark Sky Reserves.

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