# Size of buildings from maps

**URL:** <https://community.arkio.is/t/size-of-buildings-from-maps/196>\
**Category:** Help\
**Tags:** meta-quest\
**Created:** [July 19, 2024, 7:03pm UTC](https://community.arkio.is/t/size-of-buildings-from-maps/196 "2024-07-19T19:03:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vr-vagabond](https://avatars.discourse-cdn.com/v4/letter/v/edb3f5/32.png) [@vr-vagabond](https://community.arkio.is/u/vr-vagabond)\
**Post date:** [July 19, 2024, 7:03pm UTC](https://community.arkio.is/t/size-of-buildings-from-maps/196/1 "2024-07-19T19:03:39Z")

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Hi, I set up the map and activated the buildings. I tried to change the size of the buildings in passthrough to the real size. That does not work. why?

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**Author:** ![david](https://yyz2.discourse-cdn.com/flex028/user_avatar/community.arkio.is/david/32/17_2.png) [@david](https://community.arkio.is/u/david)\
**Post date:** [July 20, 2024, 11:37am UTC](https://community.arkio.is/t/size-of-buildings-from-maps/196/2 "2024-07-20T11:37:19Z")

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The buildings loaded with the map tool represent existing context of a site, so by default we only load them as static model. The loaded OSM buildings, that come from the map tool, also contain existing information that would become a big mess if you could start editing buildings. If you want to edit them, you’ll need to erase the building you want to edit and create one

[Here](https://support.arkio.is/hc/en-us/articles/360002018717-3D-maps) is a guide that talks more about the map tool, this part below would be what you need to start erasing and building

> When a site needs to be cleared of existing 3D buildings that are still in the OpenStreetMaps Database you can erase parts of the imported building by drawing a box around the buildings you like to erase. You can create as many boxes as you need and can reset your erased buildings using the reset button.

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<div class="post-metadata">

**Author:** ![vr-vagabond](https://avatars.discourse-cdn.com/v4/letter/v/edb3f5/32.png) [@vr-vagabond](https://community.arkio.is/u/vr-vagabond)\
**Post date:** [July 21, 2024, 12:47pm UTC](https://community.arkio.is/t/size-of-buildings-from-maps/196/3 "2024-07-21T12:47:39Z")

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Many thanks. I‘ll check that.  
It’s strange. I measured the building and it’s right. But in Passthrough it does not fit the real size.

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<div class="post-metadata">

**Author:** ![david](https://yyz2.discourse-cdn.com/flex028/user_avatar/community.arkio.is/david/32/17_2.png) [@david](https://community.arkio.is/u/david)\
**Post date:** [July 22, 2024, 11:27pm UTC](https://community.arkio.is/t/size-of-buildings-from-maps/196/4 "2024-07-22T23:27:58Z")

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Depending on the type of building and it’s location, the footprint could represent the total site lot or the overall footprint of a building. If you snag a screen shot I can poke a bit more at the setup.