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JRJeff ReynoldsCompass · Seattle
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Active

Listed by Max Frame, Kidder Mathews

6,260
Square feet
$256
Per sq ft
Multi Family
Type
1988
Year built
13,350 sq ft
Lot
0
Days on market

About this property

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 & commute

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Directions

Property details

Listing details

Listing number
#2584770
Listed
September 18, 2026
Days on market
0
Price per sq ft
$256

Unit & building

Stories in building
4
Units in building
8

Parking

Total spaces
8

Views

View
Bay

Construction

Year built
1988
Style
55 - 5-9 Units
Structure
Multi Family
Roof
Composition

Heating & cooling

Heating
Forced Air
Cooling
None
Energy source
Electric

Flooring

Flooring
Vinyl PlankCarpet

Lot

Lot size
13,350 sq ft

Terms

Terms offered
CashConventional

Utilities

Water
King County Water
Sewer
Southwest Suburban Sewer District
Power
Seattle City Light

Schools

District
Highline

What stands out to you?

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  • Bay
  • Multi Family
  • Composition
  • Forced Air
  • None
  • Electric
  • Vinyl Plank
  • Carpet
  • Cash
  • Conventional

Listing history

  1. Listed

    $1,600,000

    September 18, 2026

Derived from current MLS listing fields. Full multi-cycle status history is on the roadmap.

Payment estimate

An estimate to help you plan, not a loan offer or financial advice.

Est. monthly

$9,317

Principal & interest
$8,090
Property tax (est.)
$1,227

Assumes $320,000 down (20%), a $1,280,000 loan at 6.5% over 30 years. Property tax is an estimated figure, not MLS data (verify with the county assessor). Excludes insurance, PMI, and closing costs. Not a commitment to lend or financial advice.

Similar nearby listings

Based on information submitted to the MLS GRID as of September 18, 2026 at 8:00 PM PDT. 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.