Waltham House With In Law Apartment For Rent . Compare rentals, see map views and save your favorite houses. Properties to rent in waltham | rightmove. House For Rent In Waltham Ma House For Rent from houseforrentus.blogspot.com The average apartment rent in this city costs you $3,766. An apartment unit for rent in waltham costs renters from $500 to $6,368. This building is located in waltham in middlesex county zip code 02451.