About The Fields at Constitution Square Kay Builders a trusted, family-owned builder for over 60 years is proud to present 'The Fields at Constitution Square'. Located in scenic, historic Perkasie Bucks County, The Fields at Constitution Square features Townhomes each with a distinct look. Perkasie is a borough in Bucks County, Pennsylvania; 35 miles north of Philadelphia. Establishments in the borough early in the twentieth century included silk mills, brickyards, lumber mills, tile works, a stone crusher, and manufactures of cigars, tags and labels and wire novelties. The town of Perkasie derive its name from the Lenape Unami phrase Pèhpahkàsink/Poekskossing which translates to 'One who goes to the place to crack nuts'.