Measurement Flashcards
What is GIA?
Gross Internal Area is the area of a building measured to the internal face of the perimeter wall at each floor level.
What is NIA?
Net Internal Area is the usable area within a building measured to the internal face of the perimeter walls at each floor level.
What is GEA?
Gross External Area is the area of a building measured externally at each floor level.
What is IPMS 1?
The floor area measured to the external extent of the external walls.
What is IPMS 3 Office?
The floor area available on an exclusive basis to an occupier, measured and stated
separately, but excluding standard facilities and shared circulation areas.
What are some differences between IPMS 3 Office and NIA?
-Limited head height areas included in IPMS but stated separately.
-Area of window reveals where window is the internal dominant face included in IPMS.
-Half the area of the wall dividing occupiers included in IPMS.
-All internal walls and columns included in IPMS.
What is excluded from NIA measurements?
Toilets
Areas used in common
Stairwells
Areas under 1.5m tall.
Plant rooms/tank rooms
Car parking spaces
Columns and internal structural walls
Permanent circulation areas
What RICS document sets out NIA, GIA and GEA?
RICS Global Guidance Note - Code of Measuring Practice (6th Edn, Effective May 2015)
What RICS document sets out IPMS?
RICS Global Professional Standard - Property Measurement (2nd Edn, Effective April 2018)
What is the Internal Dominant Face?
The inside finished surface comprising more than 50% of the floor to ceiling height of each wall section.
What is IPMS 3B - Residential?
The area in exclusion occupation, including the floor area occupied by internal walls and columns.
How do you ensure your measuring equipment is accurate?
Distometer calibrated annually by appointed person in office.
Checked by measuring 2 set points in office. Acceptable tolerance is 20mm.
Distometer tagged with successful calibration and a log is kept for each device.
What are typical scales for floorplans?
1:50 or 1:100
Explain IPMS All Buildings?
Replaces all previous IPMS standards into one full standard. Applicable to all types of buildings, independent of their use or occupation.
What RICS guidance relates to the measurement of land?
Land measurement for planning and development purposes (1st edn, effective Aug 2021)
