A land sales agreement is a legal contract between a seller and a buyer that is used to purchase real estate and outline the terms of the transaction. Seller agrees to sell to Buyer, and Buyer agrees to purchase from Seller, subject to the terms, covenants and conditions set forth herein.Also, contracts may also be entered into when accepting new employment, completing a real estate transaction, and other lawful activities. Real Estate File No: 4026-57.3. This Master Purchase Agreement is made as of February 14, 2006 ("Effective Date") between SUN MICROSYSTEMS, INC. Verify Zoning of the property using MapSantaClara. Find Zoning standards for your zoning district in the Zoning Code (PDF). The language to be used in the arbitral proceedings shall be English.