Non-regularly occupied spaces

Hello Hoda,  According to LEED v4 BD+C Reference guide, the non-regularly occupied spaces is defined as - " Occupied spaces that do not meet the definition of regularly occupied are nonregularly occupied; these are areas that people pass through or areas used an average of less than one hour per person per day.."  Examples of nonregularly occupied spaces include the following:
·· Break room
·· Circulation space
·· Copy room
·· Corridor
·· Fire station apparatus bay
·· Hospital linen area
·· Hospital medical record area
·· Hospital patient room bathroom
·· Hospital short-term
charting space
·· Hospital prep and cleanup area in
surgical suite
·· Interrogation room
·· Lobby (except hotel lobby)*
·· Locker room
·· Residential bathroom
·· Residential laundry area
·· Residential walk-in closet
·· Restroom
·· Retail fitting area
·· Retail stock room
·· Shooting range
·· Stairway Refer to page 596 and 597 within the Reference guide for more information. 

As a supplementary, we need to first classify spaces into occupied and unoccupied, for examples, mechanical and electrical rooms are unoccupied spaces as they are normally just to store equipment and technicians will only visit the area occasionally. Then, to determine whether occupied spaces are regularly occupied or non-regularly occupied, as mentioned by Bipin. 
With this two parameters defined, the space can then be categorised into the desired classification for LEED assessment.

Hello, We are trying to comply with this pilot credit but have a question on the underground parking. Should we include the parking areas in the calculation of the non regularly occupied space ?  Since we have 6floors underground parking, it would be difficult to provide quality views for those spaces. Thanks 

Parking is excluded from the floor area of the project, so it would be excluded from this credit calculation. If there is any occupied space like a parking attendant booth or security office, include that, but the open parking areas are not considered part of the building area.