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Three-Story Multi-Tenant Office Building
For Sale
$10,750,000

556 N Diamond Bar Blvd, Diamond Bar, CA 91765

Class B office building with on-site parking and a reciprocal agreement adding nearby stalls for tenants.

Property Size47,196 SF
Lot Size2.76 Acres
Price / SF$227.77
Days on Market33

Property Features for 556 N Diamond Bar Blvd

General Information

Standard status Active
Size 47,196 SF
Class B
Lot size 2.76 Acres
Property subtype Office
Occupancy 95%

Site & Location

Traffic Count 38,000 vehicles/day
Road Access Yes

Additional Details

Office Units 31

Building Details

Year Built 1987
Stories 3
Tenancy Multi
Listing Agency: Lee & Associates
Listed By: Jamie Harrison · License #CalDRE #01290266
Source: Lee-associates
Added: Jun 29 Changed: Jul 10 Last Checked: Jul 31 at 6:28AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Lee & Associates

Investment Insights

Based on property information with market context.

The Sunset Plaza Professional Building is a three-story, Class B multi-tenant office property built in 1988 and maintained by current ownership. The asset totals 47,196 square feet and sits on 2.76 acres, with an on-site parking ratio of 4.0 stalls per 1,000 square feet. A reciprocal parking agreement with Global Mission Church, located immediately adjacent, provides additional weekday and Saturday parking access through March 18, 2033, adding 49 stalls during 6:00 AM to 6:30 PM.

The building is positioned along highly traveled North Diamond Bar Boulevard frontage, reported at 38,000 vehicles per day. The property is currently 95.1% occupied, with 31 signed tenants across the building and no single tenant representing more than 21% of occupied space. Building systems and safety infrastructure have undergone recent capital upgrades.

For tenants and buyers seeking an established office platform, the multi-tenant configuration supports a range of professional uses within a maintained, upgraded building. The tenant roster is diversified by leasing concentration, and the parking setup combines on-site spaces with access to additional stalls under the in-place reciprocal agreement.

Key Highlights

  • 47,196 SF, three‑story Class B multi‑tenant office building built in 1987
  • 2.76‑acre site with parking ratio of 4.0 per 1,000 SF plus reciprocal parking agreement
  • Reciprocal parking with Global Mission Church adds 49 stalls weekdays & Saturdays 6:00 AM–6:30 PM through March 18, 2033

Property Analytics

Current Use

Office buildings

Suggested Use

Top Pick Gym & Fitness Center Nail Salon Storage Facility Parking Lot & Garage (Bike/Boat/Book/etc) Store Cafe & Coffee Shop

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

31
Office units
38,000 VPD
Traffic count
95.1%
Occupancy
Multi-tenant
Tenancy
Yes
Paved road access

Location Intelligence

Trade Area within ½ mile

982
Businesses Nearby

Demographics for 91765, CA

46,449
Population
16,056
Households
2.9
Avg Household Size
44
Median Age
53%
College-Educated
93%
High-School Grad
18.6 sq mi
ZIP Area
2,497
Density / Sq Mi
$104,737
Median Household Income
$55,141
Median Earnings
$2,395
Median Rent
$878,900
Median Home Value

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025
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Frequently Asked Questions

What type of property is this?
Office building - Class B office building with on-site parking and a reciprocal agreement adding nearby stalls for tenants.
Where is this office building located?
The property is located at 556 N Diamond Bar Blvd Diamond Bar, CA.
What is the asking price?
The asking price for this property is $10,750,000.
What are key features of this property?
This property features: 47,196 SF, three‑story Class B multi‑tenant office building built in 1987; 2.76‑acre site with parking ratio of 4.0 per 1,000 SF plus reciprocal parking agreement; Reciprocal parking with Global Mission Church adds 49 stalls weekdays & Saturdays 6:00 AM–6:30 PM through March 18, 2033
More about this property
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