Here is a snapshot of sales of lots that are 10.000 to 20.000 sqft sold in the last 3 months: https://www.redfin.com/city/19457/CA/Sunnyvale/filter/min-lot-siz

Here is a snapshot of sales of lots that are 10.000 to 20.000 sqft sold in the last 3 months: https://www.redfin.com/city/19457/CA/Sunnyvale/filter/min-lot-size=0.25-acre,max-lot-size=0.5-acre,include=sold-3mo https://www.redfin.com/city/19457/CA/Sunnyvale/filter/min-lo... 2,5M, with respect to the existing market, doesn't appear to be out of the norm.