What's new?

Spring/summer 2021

As part of RICS' response to the COVID-19 pandemic and its effect on the built environment, each isurv channel has moved to a rolling update cycle to ensure content is as up to date as possible. This page will be updated with new updates to reflect the changing situation as it develops.


Author Joshua Askew has updated Commercial property: investment valuations to significantly expand the section on the discounted cash-flow method and explain the different methodologies for determining discount rates.



Author David Harper has updated this section to include more information on the impact of COVID-19.

International property tax

This section has been updated with the latest changes in international property tax by author Steve Hile.


Author Kate Murphy has brought this section in line with current regulation and RICS standards and guidance, while offering advice on the impact of COVID-19 on the market.

Residential owner-occupier transactions

New material has been added to this section regarding RICS guidance on cladding and the Building Safety Bill 2021.


The section on spas has been updated to include further information on the impact of COVID-19 on the sector.

Valuing real estate developments

This section has been updated thoroughly throughout, with specific focus on the comparable methodgross development value, profit and risk and discounted cash flows.

RICS initiatives

As a response to structural shifts in the market that have been accelerated by COVID-19, RICS has commissioned an independent review of real estate investment valuation practices. Read more and get involved in the process here.


See iConsult for professional guidance drafts.