- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 07 May 2018
The New Rules of Measurement (NRM) are published by the Royal Institute of Chartered Surveyors (RICS). They provide a standard set of measurement rules for estimating, cost planning, procurement and whole-life costing for construction projects.
According to NRM1: Order of cost estimating and cost planning for capital building work, an option cost is:
'...an estimate of the cost of alternative design solutions to achieve the employer’s objectives; so that they can be compared and appraised. Option costs will be incorporated in the overarching cost report.'
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
America's economic collapse produced scores of PWA Moderne projects.
The benefits of glowing aggregates and cement.
Urgent need for open communication to address mental health issues.
Guidance offered on COVID-19 green recovery, building safety and more.
Providing strength and support above the joists.
Enforcer will test and investigate product safety.
Underfloor air conditioning comes to 24 St James's Square.
Consultation on public right to buy unused public property.
IHBC resource offers improved consistency.
New laws to ‘retain and explain’ historic statues.
The principles and art of the possible. Book review.
From horse and cart to hypermarket.