What Your Contra Costa County Home Is Worth

Contra Costa contains a wider internal price range than any of the other four counties I work. The Lamorinda side, the 680 corridor, the Delta side and the western shoreline are genuinely different markets.

Which means a number derived from county-level data is derived from four markets your house is not in.

A written comparative market analysis naming the specific properties it is built on, with the adjustments explained.

Three pricing strategies with honest trade-offs: aggressive, market-matching, or below market to manufacture competition.

A ranked prep list separating the work that pays from the work that does not.

It is free, it commits you to nothing, and no pitch is attached. Two years out is a better time to ask than two months out.

A useful comparable sale is a property the same buyer would have considered. In Contra Costa, that boundary often follows a transportation pattern or submarket rather than a neat circle on a map. A buyer focused on BART access may not treat a larger home farther away as an alternative. A buyer committed to the 680 corridor may not cross-shop the western shoreline at all.

I do not widen the search simply to collect more sales. I start with the likely buyer for your home and ask what else that person could have purchased. Then I adjust for the features that do real work here, including usable outdoor space, the home's relationship to its route, and the cooling system in warmer inland areas.

Parcel obligations need their own review. Mello-Roos or another special assessment changes the ownership picture a buyer sees, even when the houses look similar. The actual tax record matters more than an assumption based on the street or development.

The final value range should explain why each comparable belongs and why an attractive nearby sale may not. Contra Costa's wide internal range makes that discipline essential. A valuation built from the wrong side of the county can look detailed and still answer the wrong question.