Listed by Max Frame of Kidder Mathews
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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Listing data courtesy of NWMLS as provided by MLS Grid as of September 30, 2026 11:32 PM UTC . All data is obtained from various sources and has not been, and will not be, verified by broker or NWMLS. All information should be independently reviewed and verified for accuracy.  Properties may or may not be listed by the office/agent presenting the information. Supplied Open House Information is subject to change without notice. Many homes contain recording devices, and buyers should be aware they may be recorded during a showing. Listing data shown with the three tree icon are provided courtesy of NWMLS. Some IDX listings have been excluded from this website. IDX information is provided exclusively for consumers’ personal non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.  The data is deemed reliable but is not guaranteed.

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