Opportunity Knocks! Potential 7 Unit Development Project for Builders and Investors. THIS IS AN UNPRICED LISTING BEING SOLD WITH THE TWO FAMILY at 50 POND ST. Currently, 50 and 52 Pond St are home to a two family and a single family and their combined lots total 18,700 sqft of land. The properties are located in RESIDENCE C ZONING district. Residence C zoning is multi-family with potential for Special Permitting from the City Council to increase FAR to 0.6 which could potentially allow for 7 units with the 2 lots combined. Fantastic location in Waltham near public transportation, shopping, restaurants and everyday conveniences.