Last edited 29 Sep 2020

Order of cost estimate

The purpose of an order of cost estimate is to establish affordability of a proposed development for a client.

Methods for preparing order of cost estimates are set out in the New Rules of Measurement:

NRM1 defines an order of cost estimate as; '...the determination of possible cost of a building(s) early in design stage in relation to the employer’s fundamental requirements. This takes place prior to preparation of a full set of working drawings or bills of quantities and forms the initial build-up to the cost planning process.'

A wide range of information may be required from the parties to the project to prepare an order of cost estimate:

From the employer:

From the architect:

Information can also be provided by the services engineer, structural engineer, and other consultants if these have been appointed.

The key constituents of an order of cost estimate are typically:

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