Nick (last name not specified), manager of the residential appraisal program in the Clark County assessor's office, and Andy (last name not specified), lead residential appraiser, told an information session that the office values roughly 180,000 properties using a mass appraisal model and a standardized annual workflow.

The presentation explained why the office uses mass appraisal to meet constitutional and statutory duties, how the county is divided for revaluation work, the schedule for inspections and new-construction pickups, and the resources available to property owners who want to check or appeal their assessed value.

Nick, manager of the residential appraisal program, said the assessor's work is grounded in Article VII of the Washington State Constitution and the Revised Code of Washington, and described three core principles the office follows: uniformity across the county, equity across property classes, and market-based fair valuation. “We take a mass appraisal approach,” he said, and added that the office avoids “sale chasing,” meaning it does not change values based on single sales.

Andy, lead residential appraiser, described how the county is divided into six revaluation sections. About one-sixth of the county receives a physical revaluation each cycle, while the remaining five-sixths undergo annual adjustments. He said the office inspects roughly 40,000 accounts this year in a revaluation area using about 15 residential appraisers, and that the overall workload results in valuing about 180,000 properties annually.

Key timeline details given during the session:
- The statutory assessment date for most property is January 1 of the assessment year. Appraisal work through the year is a snapshot tied back to that date.
- Revaluation field inspections typically begin in October and run through February. Appraisers then perform analysis and model calibration in spring.
- New-construction inspections and additions are handled May through August and must be completed by statute by August 31. The presenter noted that for new construction the operative snapshot date is July 31.

Andy summarized the office's technical approach: a computer-aided mass appraisal (CAMA) system, statistical modeling, sales analysis and land studies to develop valuation models. He explained the assessment ratio (assessed value divided by market value) as a principal quality metric the office uses to measure and calibrate models toward the statutory 100% market-value target.

The presenters also described the public-facing tools and appeal process. The assessor's public Property Information Center breaks out account identifiers, prior and current assessed values, and available electronic notices of value. Notices of value include a 60-day appeal deadline. The Clark County Board of Equalization is an independent office that receives petitions and holds hearings; assessor staff research petitions and provide evidence but the BOE makes independent decisions.

Quotes and attributions in this article come from meeting speakers Nick (manager, residential appraisal program) and Andy (lead residential appraiser). The presentation included Q&A from residents on topics such as how outbuildings are valued (cost-based inputs including square footage, construction quality and depreciation) and how multifamily/commercial property valuation differs (some commercial and multifamily valuation is income-based and performed by a separate department).

Less critical details: presenters pointed attendees to an appraiser-on-duty service available Monday–Friday and to online resources for retrieving electronic notices of value. The session closed with a reminder that the office certifies its assessment roll in the fall and that certification enables taxing districts to finalize budgets and levy calculations.