Design Economics

Question 1

What’s the difference between ROCE and OCE?

Answer 1

Rough Order Cost Estimate is based on Stage 0 information whereas an OCE is based on RIBA Stage 1 information.

Question 2

What is the degree of accuracy?

Answer 2

These are usually based on areas and £/sqm basis and give a rough indication of viability of a scheme for a Client.

Question 3

What is the purpose of NRM

Answer 3

Provide a standard form of measurement and guidance across the UK for construction projects

Question 4

What are the measurement rules for pricing internal walls for an OCE under elemental method?

Answer 4

OCE - £/sqm

Cost Plan - measure the centre line and £/sqm

Question 5

Thameside House - how did you evaluate the value of the space

Answer 5

Calculated the net:gross area on a floor by floor basis. It was efficient on every floor but it was poor in the basement with plant and a bin store taking up the space. These areas are not lettable spaces so therefore do not offer value for money as the Client could not profit from the space.

Question 6

Why might costs be different to a benchmark?

Answer 6

Factors such as location, design, materials