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521 Building

ISSprOM 2019-2
521 Building (ISSprOM 2019-2)

Geometry: area


A building is a relatively permanent construction having a roof. Buildings within symbol Area that shall not be entered (520) may just be represented in a simplified manner. Areas totally contained within a building shall be mapped as being a part of the building.
The minimum gap between buildings and other impassable features shall be 0.40 mm. Boundaries in touching buildings shall not be represented.


Minimum width: 0.5 mm.

Minimum area: 0.25 mm² (footprint 4 m²).

Colour: black (outline), black 50%.


The definition of this map symbol was updated on 02.01.2022: Change of colour: 60% –> 50%.

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