Answers come from Meta's Muse Spark Open model calling tools over this site's database; every figure is quoted from a tool result and every home is cited. Example questions show answers we checked by hand.
How the true price is worked out
Cash, price cuts and closing credits count at face value (a closing credit up to typical closing costs). A temporary buydown counts as the payments it covers. An "up to" offer may pay nothing, so homes are ranked with it at $0, and shown in full beside that. The true price counts only the largest incentive unless the fine print says they combine. Every figure is at 20% down: ask the builder whether a financing offer applies to yours.
Earlier homes in a community show their county records as published: the assessed value (land + improvements) once it has been reset to the home's last sale. On a fully assessed new home that is usually the sale price, but it is the county's figure, not a recorded price. Nothing is estimated. Records exist for Alameda, Contra Costa and San Joaquin only: Santa Clara's open assessor data has no values, and we haven't pulled San Mateo, Solano, Sonoma or Napa.
Listings, plans and offers come from each builder's public website (each page links to its source and the date it was read). Muse Spark extracted the listings and read the floor-plan images. Not financial advice: confirm every offer with the builder and your lender.