Measurement Flashcards
What is the GEA?
Gross External Area - Gross External Area is the area of a building measured externally at each floor level. Includes; All perimeter walls and projections, Areas occupied by internal walls, columns, piers, chimney breasts, stairwells e.c.t Excludes; open balconies, open fire escapes, open sided walkways, open vehicle parking e.c.t
What is GIA?
GIA is the total area of buildings owned, occupied or maintained by the HEP, measured to the internal face of the perimeter walls at each floor level; Includes; anything projecting inward from the internal walls including Areas occupied by internal walls, columns e.c.t Excludes; External walls, open balconies, open fire escapes, open sided walkways e.c.t
What is NIA?
The NIA RICS definitions are contained in the ‘Code of Measuring Practice: A Guide for Property Professionals’ (Sixth Edition), published by the RICS. This method involves the measurement of the internal room area part way into the width of internal non-structural walls and partitions. Net internal area is the usable area within a building measured to the internal face of the perimeter walls at each floor level. NIA covers all areas which are used for a specific purpose. Includes; teaching and research rooms, offices, kitchens, workshops, built-in units, cupboards etc. occupying the useable area,t Excludes; It does not include those parts of buildings which enable them to function, such as corridors. These are classified as balance areas. Enclosed areas of walls, Piers, columns, chimney breasts, ducts and other projections e.c.t
What are balance areas?
Balance area should be excluded from the NIA calculations. corridors and other circulation areas of a permanent nature (e.g. fire corridors, smoke lobbies etc.),
When is GEA used?
Used when; Town planning, Rating and council tax for houses and bungalows, Building cost estimation - residential insurance
When is GIA used?
Used when; Building cost estimation - non residential insurance, Estate agency and valuation, Rating, Property management of industrial buildings (including ancillary offices), warehouses, department stores, variety stores and food superstores, New homes valuation.
When is NIA used?
Used when; Estate agency and valuation, Rating (Business Use offices, shops),
What are the international property measurement standards (IMPS)?
IMPS were introduced to address current inconsistencies in the way property of all types is measured from one market to the next.
What’s the RICS definition of IPMS 1?
IPMS 1: The sum of the areas of each floor level of a building measured to the outer perimeter of external construction features, and reported on a floor-by-floor basis. inclusive of balcony but stated separately.
What is a theodolite?
A theodolite is a surveying instrument with a rotating telescope for measuring horizontal and vertical angles..
What does a theodolite measure?
Theodolites measure angles in degrees minutes and seconds. Each degree is split up into 60 parts, each part being 1/60 of a degree. These parts are called minutes. Each minute is split up into 60 parts, each part being 1/60 of a minute. These parts are called seconds.
How do you measure the height of a building with a theodolite?
Measuring the height of a building; 1. Set up the total station or theodolite ensuring that it is level 2. Measure the height of the total station or theodolite with a staff looking directly forward. 3. Aim the sight at the top corner of the building and record the angle 4. Record the horizontal distance from the total station to the building by EDM or tape 5. Multiple the horizontal distance by the tangent of the angle. Then the height of the station is added. This gives you the overall height.
What are the main RICS Document in relation to measurement?
RICS Property Measurement - PS - V2 - Jan 2018
Adoption of the IPMS standards for office and residential, others will be added as they are published and updated.
Internal dominant face, the surface comprising more than 50% of the floor to ceiling
RICS Code of measuring practice - GN - V6 - May 2015
Measurment for all other building that does not include office and residential.
What are the IPMS standards?
Residential
IPMS 1 - External - GEA
IPMS 2 - GIA
IPMS 3 - Differentiation of the inclusions with the net internal area
IPMS 3A - NIA
IPMS 3B
IPMS 3C
Offices
IPMS 1 - External - GEA
IPMS 2 - GIA
IPMS 3 - NIA
A client shows you 1:1250 scale plan. What would 1mm on a plan represent in real life?
1.25m
