Helen Wiens is a research analyst with Powell Banz Valuation, LLC. She graduated from the University of Alaska Fairbanks with an MS in Statistics and a BS in Biology. Helen joined PBV as a research analyst in February 2022, where she has assisted with appraisal assignments involving offices, commercial land, agricultural land and special use properties.

Helen Wiens is a Professional Real Estate Research Analyst who has assisted with appraisal assignments involving offices, commercial land, agricultural land and special use properties.

Lauren Thalhofer is an appraiser assistant with Powell Banz Valuation, LLC. Lauren grew up in The Dalles, Oregon. She graduated from Oregon State University in 2018 with a B.S. in Rangeland Ecology and Management and was involved in a variety of agriculture and leadership-related clubs and organizations.

Lauren Thalhofer is an appraiser assistant with Powell Banz Valuation involved in a variety of agriculture and leadership-related clubs and organizations.

Jonathan B. Banz, MAI, AI-GRS is a Principal of the firm and Certified General Appraiser. Jon appraises a large variety of property types, both locally and regionally. He focuses on industrial properties, including single and multi-tenant, light, heavy, and flex.

Jonathan B. Banz, MAI, AI-GRS is a Principal of the firm and Certified General Appraiser focusing on industrial, single, multi-tenant and flex properties.

Powell Banz Valuation, LLC specializes in real estate consultation and valuation related services.
Real Estate Consultation & Valuation

Powell Banz Valuation, LLC specializes in real estate consultation and valuation related services.

Katherine Powell Banz, MAI is a Principal and Certified General Appraiser with Powell Banz Valuation, LLC. She is licensed in Oregon and Washington and has performed a diverse range of commercial valuation assignments throughout the Northwest since joining the firm in 2002.

Katherineā€™s experience includes valuation-related work including consultation, appraisal, expert testimony & feasibility analysis of income-producing properties

Monica Murray joined Powell Banz Valuation, LLC in 2016 in production support and handles a variety of tasks including research, report production, and reception.

Monica Murray is production support and handles a variety of tasks including research, report production, and reception.

Sarah joined PBV in 2013 as the Office Manager and handles the office accounts, billing and HR, she also was integral with the transition from Powell Valuation Inc to Powell Banz Valuation, LLC in 2014. Sarah maintains the company Facebook, LinkedIn, and Google+ pages as well as the PBV website.

Sarah handles the office accounts, billing and HR, maintains the company Facebook, LinkedIn, and Google+ pages as well as the PBV website.

Tyson Giza is an appraiser assistant with Powell Banz Valuation, LLC. He was born and raised in Salem and graduated from Willamette University in 2013 with a BA in Economics. He has been a member of the PBV team since May 2017 and assisted in a variety of commercial valuation assignments throughout the state of Oregon with experience across a broad spectrum of properties types including office, retail, industrial, multifamily, mixed use, special purpose (bowling alleys, aircraft hangars, cranberry bog, churches, schools, senior centers, etc.) and bare development land.

Tyson has assisted in a variety of commercial valuation assignments throughout the state of Oregon with experience across a broad spectrum of properties types.

Kathleen Hendersen is a Certified General Appraiser with Powell Banz Valuation, LLC. She graduated from Willamette University summa cum laude in 2015 with a BA in Economics and a minor in Music. While at Willamette University, she conducted research on the pricing and allocation of university parking systems and studied statistical techniques including econometrics.

Kathleen has assisted in commercial valuation assignments throughout Oregon, including office, hospitality, mixed use, industrial, and vacant land properties.

London is a Certified General Appraiser and has been with PBV since 2010 and has worked on a number of complex valuation assignments in that time including retail, office, industrial, agricultural, and special use property types.

London has worked on a number of complex valuation assignments including retail, office, industrial, agricultural, and special use property types.