About this home
Discover Castlemonte Apartments, an 8-unit investment opportunity located at 13204 12th Ave SW in Burien. Built in 1988, the property features 6,260 rentable square feet across two structures on a 13,350 SF lot zoned MU-1. The unit mix includes a studio, six spacious two-bedroom apartments, and a detached 2-bedroom single-family rental with a private yard. One unit is non-conforming. Property amenities include private balconies and patios, 14 off-street parking stalls, common laundry, and select units with territorial views. Recent improvements include a composition roof installed in 2021. Offered at a 6.75% in-place cap rate, Castlemonte presents an opportunity to increase NOI through rental upside and operational improvements. The two-structure configuration also offers potential to explore subdividing and selling the single-family home separately, subject to buyer verification and municipal approval. Conveniently located near Downtown Burien, Sea-Tac Airport, and major employment centers throughout the Puget Sound region.
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Courtesy of Kidder Mathews. The data relating to real estate for sale on this site comes in part from the Northwest Multiple Listing Service (NWMLS). Listings held by brokerage firms other than this brokerage are marked by the three-tree symbol; detailed information about such listings includes the name of the listing brokerage. This information is provided for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. All information is deemed reliable but not guaranteed and should be independently verified.
Based on information from the Northwest Multiple Listing Service as of September 18, 2026.