Rockhood
$1,600,000List price
Active

13204 12th Avenue SW · Burien, WA 98146

Source: NWMLS · Kidder Mathews · Max Frame #NWM2584770

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.

Location

Basics

Property type
Multi Family
Style
5-9 Units
Stories
4 stories
Condition
Good
Year built
1988
Building area
6,260 sq ft
Lot size
13,350 sq ft (0.31 acres)
County
King
MLS #
NWM2584770

Interior

Heating
Forced Air
Cooling
None
Flooring
Vinyl Plank, Carpet

Exterior & lot

Exterior features
Wood Products
Roof
Composition
Foundation
Poured Concrete
View
Bay
Waterfront
No

Parking

Parking spaces
8

Utilities

Sewer
Sewer Connected
Power
Electric

Community & fees

Subdivision
Burien
Property tax
$17,385 (2026)

Transaction

Listed on
Sep 18, 2026
Days on market
2
Listing terms
Cash, Conventional
Possession
Closing

More homes nearby

Schools

School district: Highline

High
Highline High School
SchoolDigger 1 star · Top 85% in WA

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Listing provided courtesy of: Kidder Mathews

Listing agent: Max Frame.

Based on information submitted to the MLS GRID as of . All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information 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. Information is deemed reliable but not guaranteed.

Data last updated 2026-09-18.