Clark County Remodeling Research

Data studies on remodeling in Vancouver and Clark County, built by JDI Construction from public records: who is licensed to do the work, how old the homes are, and what has happened to building costs and home values. Every figure on these pages names its source and the period it covers, and each study links to a CSV of the data behind it.

We count and compare public data. We do not name or rate other contractors here, and we never publish anything that identifies a person.

How we build these pages

• Raw data comes straight from the public agency that publishes it, on a stated date.
• Every figure is computed by a script from that data, then checked a second time against the source through a different download or query.
• Each page lists its method, sources and limits, and the data is free to reuse under CC BY 4.0 with a link.
• Found an error? Email info@jdiconstruction.co with the source and we will correct it and note the date.