Rare investment opportunity in South Lake Union with existing 4-Plex & mixed use zoning-ideal for owner/user! The property is one of the few remaining residential development parcels in the area, offering a myriad of investment options: retain rentals as residential/business/retail units & potentially add up to 3 townhomes on parking surface area; redevelop site w/ 6 townhome units or denser multifamily project & generate income from existing fourplex while awaiting permits. Vacant land next door also for sale separately: with the two parcels combined, offer even more development opportunities. Feasibility work completed! The area is transformed from a low-rise industrial district into one of Seattle's most dynamic tech, biotech & research hubs. The locality now hosts some of WA's largest employers, including Amazon, Google, Meta, University of Washington Medicine, Fred Hutchinson Cancer Research Center, Seattle Cancer Care Alliance. It is a major center for life sciences and biotech, with state-of-the-art lab campuses. The district also attracts tech startups, venture capital firms, and professional service tech-sector companies. The neighborhood offers desirable work/life balance with a 99 walk score; Market Hall-SLU's neighborhood marketplace-is just a block away with specialty boutique shops, local dining and outdoor common deck. Nearby Transit & I-5 Mercer Street Interchange just a few blocks away. Five on-site parking spaces!