It said this was following market feedback and the change comes in from today. It will be applied to new applications submitted from 19 January.
This comes after Natwest reduced and simplified its valuation fees to standardise how much borrowers paid for valuation depending on property value.
For mortgages with a valuation fee, £177 will be payable for a purchase price or property value up to and including £3m while purchase price or property values above £3m will be subject to a fee of £1,455.
Fees are available on request for properties or purchase prices above £10m.