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33867992
33867943

556 N. Diamond Bar Blvd., Diamond Bar, CA 91765

JH
CA 1290266
Lee & Associates - Pasadena
Lee & Associates - Pasadena
Listed by Lee & Associates - Pasadena
$10,750,000
3 days on market
Updated 2 days ago

Sunset Plaza Professional Building

Details
Property Type Office
Sub Type Traditional Office
Square Footage 47,196
Net Rentable (SqFt) 47,196
Cap Rate 6.81%
Occupancy 95.1%
Tenancy Multi
Price per SqFt $228
Class B
Year Built 1988
Buildings 1
Stories 3
Acreage 2.760
Zoning OP
Parking Spaces 4 per 1,000 sq ft
Investment Type Stabilized

Sunset Plaza 3-Story Office Building | 6.81% CAP | 47,196 SqFt

Marketing description

PLEASE CLICK THE LINK TO THE LANDING PAGE: https://bit.ly/SunsetPlazaSale

Lee & Associates Pasadena is pleased to present the exclusive opportunity to acquire the Sunset Plaza Professional Building, a ±47,196-square-foot, three-story Class B multi-tenant office building located at 556 N. Diamond Bar Boulevard, Diamond Bar, California. Built in 1988 and consistently well-maintained throughout ownership, the asset is situated on 2.76 acres with a parking ratio of ±4.0 per 1,000 SF. In addition to the on-site count, a reciprocal parking agreement with Global Mission Church, located immediately adjacent to the property, is in-place through March 18, 2033. This agreement provides Sunset Plaza Professional Building occupants access to 49 additional stalls on weekdays and Saturdays from 6:00 AM to 6:30 PM, increasing the effective parking ratio.

The property benefits from prominent frontage along N. Diamond Bar Boulevard, the primary north-south commercial corridor through the City of Diamond Bar. The site is positioned approximately 0.5 miles from the SR-60 / SR-57 Freeway interchange, one of Southern California's highest-volume traffic junctions and a critical commuter route connecting the Inland Empire to Greater Los Angeles. Combined freeway traffic counts at the 60/57 interchange exceed 300,000 vehicles per day (Caltrans, 2024), providing exceptional visibility and accessibility for tenants and their clients.

Investment highlights

  • Stabilized Multi-Tenant Asset 95.1% Occupied
  • The property is currently 95.1% occupied by 31 signed tenants across ±47,196 SF, with no single tenant representing more than 21% of building.
  • Building systems and safety infrastructure have undergone recent capital upgrades.
  • Strong tenant retention supported by proactive maintenance and property improvements.
  • Below-Market In-Place Rents with Embedded Mark-to-Market Upside
  • Positioned within one of Southern California’s busiest commercial corridors.

Listing Contacts

JH
CA 1290266
Lee & Associates - Pasadena
Lee & Associates - Pasadena
Listed by Lee & Associates - Pasadena

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Zoning

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OP/H OverlayOffice Professional And Housing Element Site Overlay
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Last updated Feb 20, 2026 For deeper zoning details, reports are available at Zoneomics

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