05-10-2024 - Post-report Epithaaf Van Haren St. Annaparochie

02-10-2024 - Colour research and -design Jelsum

03-07-2024 - Additional research Chancellery Leeuwarden

18-06-2024 - Exploratory color research Lifeboat shed

02-04-2024 - Colour research in Oranjestein - Oranjewoud

08-03-2024 - Color historical research Chancellery Leeuwarden

01-03-2024 - Research water damage ceiling Kimswerd

21-12-2023 - In-depth color research at Villa Barmerhoek

19-07-2023 - Colour research in Harstastate

03-06-2022 - Post-report St. Joseph's Cathedral Groningen

19-01-2022 - Stiens Notarishuis - extensive report 160 pages

12-03-2020 - Colour research restoration conservation art Leeuwarden

12-10-2017 - Conservation and research mourning signs Oudkerk.

12-09-2017 - Church Hindeloopen - research, colour advice

12-08-2017 - Church in Schettens, Friesland - research and conservation

12-05-2017 - Color research for a church in Driesum (Friesland)

12-10-2016 - Research and preservation plan Hegebeintum

12-10-2015 - Church in Menaldum - colour research

01-09-2014 - Restoration/preservation memorials, epitaph church Oenkerk

12-10-2010 - Moarning signs in Ee (Friesland) conservation