What Is Your San Mateo County Home Worth?

If your home has an addition, converted space or a separate unit, tell me what changed and share any records you already have. We can identify what needs clarification before relying on that space in the comparison.

For property in unincorporated San Mateo County, the County's Planning and Building records page explains how to request records or more detailed research. For a property within a city, start with that city's building department.

The County also publishes Planning GIS instructions for checking unincorporated zoning and other parcel information. Its instructions recommend having the parcel number because an address search may not locate the property. These records can help clarify the property facts; they do not establish a sale price or certify an improvement's legal status.

Send the address and a short note about improvements, known repairs and your possible timing. You can request the review before deciding whether to sell.

Use the English form below, or choose Оценка дома на русском for the existing Russian-language process and video follow-up. This is a request for a personal review, not an instant price or a formal appraisal.