Massachusetts Appeals Court June 24, 2003, No. 01-P-1477 (Bertrand v. Board of Appeals)

Since 1971, Joseph Gibbons has owned two contiguous vacant lots (locus), each consisting of approximately 20,000 square feet. At the time of purchase, both lots were of buildable dimensions. Thereafter, in 1986, Bourne increased the minimum square footage required for constructing a single family house in the applicable zoning district to 40,000 square feet.