Tucked away on 18th and Bluff Street, in the Whittier neighborhood, is an exciting opportunity to design and build a dream home. This 7,001 square foot vacant lot is nestled upon Sunset Hill, a cul-de-sac location with no through traffic, with a street entrance on Bluff Street at the bottom of the hillside. This unique setting ensures the utmost privacy, and offers the new owners a rare opportunity in downtown Boulder. Zoned RL-1, the allowable Floor Area Ratio is 3,550 above ground square feet, and the Maximum Building Coverage is 2,500 square feet. Potential for a 4,000-5,000 square foot home including basement square footage. Buyer to verify. Steps to Pearl Street, Community Plaza, 29th Street Mall, Whittier Elementary, Casey Middle, Boulder High, parks, trails, shopping, coffee, yoga, art, breweries, cafes, farmers market, and Michelin star dining in downtown Boulder! Please note: This sale includes the option to purchase the adjacent luxury estate situated on 1710 Sunset Blvd. Built by Chanin Development in 2010. Together, these properties form a rarity in Boulder living, providing an opportunity to expand your fenced backyard into a private oasis, or build a custom compound with guest house, adjoining courtyard, and pool. 1710 Sunset Blvd sits on a 8,363 sqft lot. Total lot square footage is 15,364 sqft combined. The adjacent property, 1710 Sunset Blvd, is being sold separately for $8,500,000, MLS# 992129.