# Is lobby part of net area?
**URL:** https://community.blackspectacles.com/t/is-lobby-part-of-net-area/3276
**Category:** Programming & Analysis
**Created:** [July 12, 2021, 2:24am UTC](https://community.blackspectacles.com/t/is-lobby-part-of-net-area/3276 "2021-07-12T02:24:20Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@xurubi](https://community.blackspectacles.com/u/xurubi)
#### Post date: [July 12, 2021, 2:24am UTC](https://community.blackspectacles.com/t/is-lobby-part-of-net-area/3276/1 "2021-07-12T02:24:20Z")
hi,
from problem seeking p97
“Primary Circulation: Lobbies, corridors, and vertical circulation between elevators, public toilets, and building entrances and exits required to satisfy the building code.”
I don’t remember counting the lobby in circulation in practice.
1. does anyone know in the exam do we count lobby into the net assigned area when calculation efficiency /net to gross?
2. if the lobby is shared among multiple tenants buildings, is it counted into the usable area?
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### Author:  [@coachdarionziegler](https://community.blackspectacles.com/u/coachdarionziegler)
#### Post date: [July 14, 2021, 3:38pm UTC](https://community.blackspectacles.com/t/is-lobby-part-of-net-area/3276/2 "2021-07-14T15:38:20Z")
Hi @xurubi ,
I think Problem Seeking is using the term ‘lobby’ in this instance to refer to a standing only space primarily used for circulation. For instance, the lobby of a commercial building where you may sign in but there is no seating or function.
If you are talking about the ‘lobby’ of a hotel with designated seating or any other lobby that is meant to be occupied by a function other than circulation you would treat that space differently.
1. If you are calculating efficiency, do not include the lobby in the area unless the lobby serves a function other than circulation.
2. For leasable areas with tenants, useable area is typically does not include common space or areas shared between the tenants. So whether the lobby is a function space or circulation space it will not be included.
Hope this helps!
-Darion
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### Author:  [@xurubi](https://community.blackspectacles.com/u/xurubi)
#### Post date: [July 15, 2021, 2:01am UTC](https://community.blackspectacles.com/t/is-lobby-part-of-net-area/3276/3 "2021-07-15T02:01:00Z")
@coachdarionziegler Thank you!