In recent years the regulations on property valuations have been tightened. Most major mortgage len- ders only accept reports from official, independent NWWI (Dutch Housing Evaluation Institute) appraisers. This means the report conforms to the conditions laid down by the NWWI, and being independent means not being involved with the sale of the property. Our NWWI appraiser is Rieks van den Berg, who is certified by VastgoedCert, TMI and the NRTV.