RICS Code of Measuring Practice Quiz: Net Internal Area GEA

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Questions and Answers

What is the Gross External Area (GEA) used for?

Valuation of new homes

Apportionment of service charges

Building cost estimations for residential property (correct)

Marketing and valuation of industrial buildings

What is the Gross Internal Area (GIA) used for?

Building cost estimation and valuation of new homes

Marketing and valuation of industrial buildings (correct)

Rating and council tax bands

Town planning applications and approvals

What is the Gross External Area (GEA) defined as?

The perimeter of a building

The area of a building measured internally at each floor level

The total floor area of a building

The area of a building measured externally at each floor level (correct)

Which edition of the RICS code of measuring practice is referenced in the text?

6th edition (2007) Signup and view all the answers

What is Gross Internal Area (GIA) not used for?

Apportionment of service charges Signup and view all the answers

What is the Gross Internal Area (GIA) of a building measured to?

The internal face of the perimeter walls at each floor level Signup and view all the answers

What is the purpose of measuring Net Internal Area (NIA) in property management?

To apportion service charges Signup and view all the answers

What is the definition of a usable area in the context of Net Internal Area (NIA)?

An area that can be used for any sensible purpose in connection with the purposes for which the premises are to be used Signup and view all the answers

What is the Standard Method of Measurement (SMM) based on?

The practice of the leading London quantity surveyors Signup and view all the answers

In which year did the Standard Method of Measurement first appear?

1922 Signup and view all the answers

What is the purpose of measuring Gross Internal Area (GIA) in marketing and valuation?

To determine the selling price of a property Signup and view all the answers

What is the primary purpose of 'taking off' in construction works?

To identify and quantify elements of construction works for measurement and pricing Signup and view all the answers

What is the traditional format for presenting a bill of quantities?

In the same order as SMM7 Signup and view all the answers

What is the term 'taking off' often used for in construction works?

Identifying and quantifying construction elements Signup and view all the answers

What is the purpose of a bill of quantities?

To provide contractors and subcontractors with quantities required for pricing Signup and view all the answers

What is the term for the process of managing the measurement process in construction projects?

Managing the measurement process Signup and view all the answers

What is the 'group approach' in construction measurement?

A way of organizing construction works into manageable sections Signup and view all the answers

How can the same item be multiplied multiple times in the taking-off construction works?

By setting down additional numbers in the timesing column Signup and view all the answers

What is the purpose of dotting on in the timesing column?

To add dimensions together Signup and view all the answers

Why are waste calculations important in taking-off construction works?

To ensure accuracy in the final figures Signup and view all the answers

What should be done with incorrect dimensions in the taking-off construction works?

They should be neatly crossed out with 'nil' written alongside Signup and view all the answers

What is the purpose of the squaring column in taking-off construction works?

To cancel incorrect dimensions Signup and view all the answers

What happens when a measurement is multiplied by multiple numbers in the taking-off construction works?

The numbers are multiplied together in the timesing column Signup and view all the answers

What is the primary purpose of preparing a specification before taking off?

To facilitate the taking-off process Signup and view all the answers

What type of measurements is '3 m x 3 m' an example of?

Square measurement Signup and view all the answers

Why is it important to maintain a consistent order when setting down dimensions?

To ensure consistency throughout the taking-off process Signup and view all the answers

What is the purpose of the timesing column in taking off?

To multiply measurements Signup and view all the answers

How are dimensions typically set down in taking off?

In order of horizontal length, horizontal width, and vertical depth Signup and view all the answers

What is the purpose of the description column in taking off?

To describe work items in relation to measurements Signup and view all the answers

Study Notes

Measurement Practice

The RICS Code of Measuring Practice, 6th edition (2007) provides three core definitions: Gross External Area (GEA), Gross Internal Area (GIA), and Net Internal Area (NIA).

Gross External Area (GEA)

Recommended for: building cost estimations, town planning applications, and rating and council tax bands.
Defined as the area of a building measured externally at each floor level.

Gross Internal Area (GIA)

Recommended for: building cost estimation, marketing and valuation of industrial buildings, and property management.
Defined as the area of a building measured to the internal face of the perimeter walls at each floor level.
Note: Internal face refers to the brick/block or plaster coat applied to the brick/block work, not the surface of internal linings installed by the occupier.

Net Internal Area (NIA)

Recommended for: marketing and valuation of shops, supermarkets, and offices, and rating shops.
Defined as the usable area within a building measured to the internal face of the perimeter walls at each floor level.
Note: An area is usable if it can be used for any sensible purpose in connection with the purposes for which the premises are to be used.

Standard Methods of Measurement of Building Works (SMM7)

First appeared in 1922 and aimed to bring uniformity to the measurement and pricing of building works.
Traditionally presented in trade format.

Key Principles of the RICS Code

The bill of quantities is traditionally presented in trade format, following the order of SMM7.
Managing the measurement process involves a group approach, including substructure, frame, upper floors, external walls, windows, staircases, roof, internal doors, doors, internal finishes, services, and drainage.

Taking-off Construction Works

Refers to the process of identifying and quantifying elements of construction works that can be measured and priced.
Used to produce bills of quantities for tenderers and to determine quantities required by contractors and subcontractors.
Involves the use of timesing, dotting on, and waste calculations.

Timesing

A method used to multiply measurements and calculate quantities.
Involves setting down additional numbers in the timesing column.

Dotting On

A method used to add dimensions together in the timesing column.
Involves positioning numbers diagonally in the column with a dot between them.

Waste Calculation

Important to write down calculations done to work out dimensions in the description column.
Allows reviewers to trace back the process by which final figures were calculated.

Alterations

Incorrect dimensions should be neatly crossed out with ‘nil’ written alongside in the squaring column.
Indicates that the dimensions are cancelled.

Dimensions for Taking Off

Can be in the form of cubic measurements, square measurements, linear measurements, or enumerated items.
Should be set down in order of horizontal length, horizontal width or breadth, and vertical depth or height.

Taking-off Columns

Timesing column: gives the factor of multiplication for the measurements in the dimension column.
Dimension column: where the measurements are set down.
Squaring column: where the calculated volumes, areas, and so on, are set out.
Description column: where the description of the work item in relation to the measurements is written.

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Test your knowledge of the RICS code of measuring practice, 6th edition, specifically Gross External Area (GEA) and its applications in building cost estimation, town planning, and rating and council tax bands.

RICS Code of Measuring Practice: GEA

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