Using post-tender estimates

This document is only available with a paid isurv subscription.

Post-tender estimates are always based on the tender return. Where possible, variations to the scope of the works are calculated using adjustments of measured works quantities where the rate remains constant. The basis of the estimate is determined by the extent of changes that have occurred either during or after the...

Explore the subscription options here to get full access to isurv, including downloads.

Try isurv for 1 month!

You can now get unlimited access to all isurv channels with our 1-month pass, available for only £39. To find out more, enquire with our team using our form.

Sign up for the isurv newsletter to receive a monthly round-up of the latest isurv updates.

For further support, please contact us by emailing isurv@rics.org or calling +44 (0) 247 686 8584