Diamond Bar Community Center: Hours, Programs, Rentals & Map

Diamond Bar, California · 2026–27 Visitor Guide

Diamond Bar Community Centers: Find the Right Venue

Diamond Bar has two important City recreation facilities that visitors often mean when searching for a community center: Heritage Park Community Center and Diamond Bar Center. They serve different needs, from smaller celebrations and community programs to larger weddings, conferences and banquets.

Heritage Park Community Center2900 S. Brea Canyon RdDiamond Bar, CA 91765
Diamond Bar Center1600 Grand AvenueDiamond Bar, CA 91765
Rental office909-839-7065Rooms, availability and events
Recreation programs909-839-7070Classes, registration and activities
Which one should you choose? Heritage Park Community Center is a practical option for a family gathering or smaller event. Diamond Bar Center offers larger rooms, the Grand View Ballroom, senior activities and recreation registration assistance.

Information reviewed October 20, 2026. Rental prices use the City’s fiscal-year 2026–27 schedule effective July 1, 2026. This independent guide does not process City reservations or payments.

Which Diamond Bar Community Center Do You Need?

FeatureHeritage ParkDiamond Bar Center
Address2900 S. Brea Canyon Road1600 Grand Avenue
Primary useCommunity room, meetings, family gatheringsBallroom events, banquets, meetings, senior programs
Dining capacityUp to 110Grand View Ballroom up to 438
Theater capacityAbout 200Grand View Ballroom up to 822
KitchenIncluded with room rentalCatering kitchen subject to rental conditions and fees
ReservationsHandled through Diamond Bar CenterHandled by on-site rental coordinators
Contact909-839-7065909-839-7065

Both are City facilities rather than unrestricted drop-in gyms. Reservations, scheduled programs and event-specific rules determine which spaces visitors can enter.

Diamond Bar Community Center Hours

The City publishes regular hours for Diamond Bar Center and its rental office. Heritage Park Community Center does not have a separately confirmed daily public drop-in schedule; access depends on its bookings and activities.

ServicePublished Hours
Diamond Bar Center, Sunday–Thursday7:30 AM–11 PM
Diamond Bar Center, Friday–Saturday7:30 AM–midnight
Rental office, Monday–Thursday7:30 AM–5:30 PM
Rental office, Friday7:30 AM–4:30 PM
Evening/weekend rental assistanceBy appointment
Heritage Community CenterReservation or scheduled-program access; call to confirm
Building versus office hours: Diamond Bar Center may host events into the evening, but this does not mean its administrative office is staffed or every room is freely available during that time.

Heritage Park Community Center: Rooms, Capacity & Fees

Address: 2900 S. Brea Canyon Road, Diamond Bar, CA 91765.

The community room is designed for gatherings of approximately 25–110 dining guests or up to 200 people in theater-style seating. Rental includes tables, chairs and a kitchen. The exact arrangement must be approved according to capacity and event needs.

2026–27 Heritage Community Room Prices

Renter CategoryHourly Fee
Group C — qualifying local nonprofits, government and listed school districts$78.02
Group D — Diamond Bar residents and businesses$92.21
Group E — other nonresidents, businesses and organizations$127.69
Cleaning deposit$200
Alcohol deposit, where approved$500

Example: Three-Hour Family Gathering

For a qualifying Diamond Bar resident, a three-hour room rental at $92.21 per hour totals $276.63 in basic room charges. With the listed $200 cleaning deposit, the initial amount would be $476.63 before any additional insurance, fees or approved services. The deposit is subject to the City’s return and deduction rules.

Cancellation rule: For Heritage room reservations canceled 60 days or more ahead, the published policy retains 50% of the room rental fees paid at signing and returns other applicable fees. At 59 days or less, room rental fees are nonrefundable.

Diamond Bar Center: Ballroom, Meeting Rooms & Events

Address: 1600 Grand Avenue, Diamond Bar, CA 91765.

Diamond Bar Center is the City’s main banquet and meeting venue, offering views across the surrounding landscape and several flexible spaces for weddings, receptions, business meetings, seminars and community events.

Grand View Ballroom

Full ballroom accommodates up to 438 for dining or 822 in theater-style seating. Smaller configurations can also be reserved.

Oak Room

Hardwood flooring and capacity of approximately 100 for dining or 185 in theater format.

Pine Room

Designated senior room with published capacity of about 66 dining or 120 theater-style attendees.

Sycamore Room

Multipurpose room with outdoor patio access; listed capacity of 60 dining or 100 theater-style guests.

Maple Room

Smaller multipurpose space with capacity of approximately 32 dining or 60 theater-style guests.

Catering Kitchen & Outdoor Area

Optional catering kitchen and designated outdoor event areas, subject to room configuration, fees and City approval.

Kitchen limitation: The City’s facility application describes a catering or warming kitchen, not unrestricted full cooking access. Confirm equipment and caterer requirements before planning a menu.

Diamond Bar Center Rental Fees: 2026–27

These prices come from the City’s fiscal-year 2026–27 fee schedule, not the older 2025–26 fee PDF. Weekday rates apply Monday–Thursday; weekend room rates and ballroom minimums differ.

Monday–Thursday Hourly Rates

RoomResident (D)Nonresident (E)
Full Grand View Ballroom$262.45$354.66
Two-thirds Ballroom$177.33$241.16
One-third Ballroom$85.13$113.50
One-fifth Ballroom$56.75$78.02
Pine Room$85.13$113.50
Sycamore Room$85.13$113.50
Oak Room$102.30$113.50
Maple Room$49.65$63.83

Weekend & Special Rental Costs

Space or ServicePublished Charge
Full Ballroom, Friday/Saturday, six-hour minimum$5,617.87
Full Ballroom, Sunday resident, six-hour minimum$4,213.40
Two-thirds Ballroom, Friday/Saturday, six-hour minimum$4,298.51
Maple Room, weekend resident$99.31/hour
Pine, Oak or Sycamore, weekend resident$177.33/hour
Catering kitchen$141.88/event
Outdoor usage$496.52/event
Facility staff$40.04/hour per staff member
Cleaning staff$76.25/hour per staff member

Cleaning & Additional Deposits

Smaller rooms and one-third/one-fifth ballroom$200
Two-thirds ballroom$500
Entire ballroom$750
Alcohol-related deposit$500
Renter categories: Group C covers certain government organizations, listed school districts and qualified Diamond Bar nonprofits. Group D covers local residents and businesses. Group E includes other nonresident individuals and organizations. Additional proof is required for eligible discounts.

The qualifying Group C weekday rate is $177.33/hour for the entire Grand View Ballroom, $120.59/hour for two-thirds and $42.56/hour for the Maple Room. Other nonprofit room prices are available in the official schedule.

Recreation Classes, Senior Activities & Events

The City’s Parks & Recreation Department operates seasonal classes, camps, youth and adult recreation, special events and senior programs. Not every activity takes place at Diamond Bar Center or Heritage Park, so check the location shown on the registration listing.

Senior Activities

  • Bingo: Monday and Friday sessions listed by the City. Basic pricing is $6 for 10 games, with optional additional purchases.
  • Senior dinner dances: Monthly themed activities for ages 55+, generally $20 for residents and $25 for nonresidents.
  • Senior clubs: Evergreen, Sunshine Seniors, Diamond Bar Senior Citizens Club and other groups meet at Diamond Bar Center.
  • Heritage senior groups: Diamond Age Seniors and Super Diamond Age programs have included social dance, tai chi, karaoke and related activities.
  • Mt. SAC senior classes: Some instructors offer classes at Diamond Bar Center, with registration administered separately by Mt. San Antonio College.

Family, Youth & Adult Programs

The City’s Fall 2026 Recreation Guide includes instructional classes, sports, excursions, camps and special events. Registration and prices vary by session.

1. Find a program.

Open the City recreation guide and select the desired class or activity code.

2. Check the details.

Review age, dates, venue, availability, resident pricing and required materials.

3. Register officially.

Use the linked recreation registration system or visit the Diamond Bar Center office.

4. Complete the waiver and payment.

A signed waiver is required. Credit-card payments currently incur a 2.5% processing charge.

5. Save confirmation.

Keep the confirmation and follow instructions for your first session.

For City recreation cancellations, standard published guidance requests refunds before the second scheduled class, with a $15 administrative deduction; shorter workshops and camps can have earlier deadlines.

How to Reserve a Diamond Bar Community Center

The City’s rental coordinators handle reservations for Diamond Bar Center and Heritage Park Community Center. Booking priority depends on renter category and applications are subject to approval.

Step 1 — Identify the correct venue.

Use Heritage Park for a smaller gathering or choose a Diamond Bar Center room for larger events and specialized setups.

Step 2 — Establish renter eligibility.

Local residents, Diamond Bar businesses and qualified nonprofits may be eligible for different rates and booking windows.

Step 3 — Check availability.

Call 909-839-7065 or email rentals@diamondbarca.gov. Provide event date, room, guest count and preferred duration.

Step 4 — Review or tour the room.

Request an appointment with the Diamond Bar Center coordinator to inspect the space and review layouts, equipment and policies.

Step 5 — Complete the application.

Include setup, actual event and cleanup hours, expected attendance, catering, alcohol and any commercial use.

Step 6 — Check insurance and permits.

Review required liability insurance, alcohol approval, kitchen access, security and any specialized event permissions.

Step 7 — Sign and pay.

Return the rental agreement and required deposits and fees by the City deadline. A request alone is not a confirmed reservation.

Step 8 — Confirm final logistics.

Check room access, equipment availability, deliveries, seating and cleanup before sending invitations.

How Far in Advance Can You Book?

  • Qualified Diamond Bar residents, businesses and local nonprofit groups: up to 24 months ahead.
  • Nonresidents and other groups: up to 20 months ahead.
  • Requests are prioritized and subject to available dates, paperwork, deposits and approval.

Event Rules: Alcohol, Insurance, Decorations & Cancellation

  • Insurance: The published facility policy requires general liability insurance of at least $1 million per occurrence and $2 million aggregate. Additional coverage may apply.
  • Alcohol: Requires City authorization, appropriate California ABC permissions, a deposit and event security.
  • Alcohol sales: Private parties cannot sell alcohol without a suitably licensed caterer or other arrangement expressly permitted by law and policy.
  • Service duration: Alcohol service is limited to a maximum of five hours under the City’s posted policy.
  • Security: Required during alcohol service through the cleanup hour, and for certain high-school formal events.
  • Candles: Only tea lights in approved sturdy holders are permitted with the City’s candle permit.
  • Equipment: Tables and chairs are included. Linens, cutlery and decorations generally are not.
  • Room cancellation: Refunds depend on room type, days before the event and the terms in the current signed agreement.
Do not book vendors too early: Confirm the signed City agreement, current insurance requirements and any required catering or ABC permissions before making nonrefundable arrangements.

Official Event Rules & Policies →

Diamond Bar Community Center Maps & Directions

Heritage Park Community Center

2900 S. Brea Canyon Road, Diamond Bar, CA 91765.

Directions to Heritage Park →

Diamond Bar Center

1600 Grand Avenue, Diamond Bar, CA 91765.

Directions to Diamond Bar Center →

Important address distinction: 21810 Copley Drive is the City’s mailing and administrative address. It is not the visitor entrance for either community center.

Parking & Accessibility Checklist

  • Confirm the exact venue before driving; these are separate buildings.
  • Follow event-specific parking instructions for large celebrations.
  • Ask staff about accessible parking, loading areas and mobility accommodations.
  • Verify your assigned entrance and room before arriving with guests.

Which Diamond Bar Facility Fits Your Event?

Visitor NeedBest Starting Point
Family gathering of 25–110 dining guestsHeritage Park Community Center
Large banquet or wedding receptionGrand View Ballroom, Diamond Bar Center
Small meeting or workshopMaple or other Diamond Bar Center meeting room
Senior bingo or dinner danceDiamond Bar Center senior activities
Senior club gatheringConfirm which Heritage or Diamond Bar Center club meets on the chosen day
Register a child for an activityFall 2026 Recreation Guide and online registration
Reserve an outdoor picnic areaCity park and picnic reservation system

Frequently Asked Questions

Where is Diamond Bar Community Center located?

Diamond Bar has Heritage Park Community Center at 2900 S. Brea Canyon Road and Diamond Bar Center at 1600 Grand Avenue, both in Diamond Bar, California 91765.

What are Diamond Bar Center hours?

The City lists facility hours of Sunday–Thursday 7:30 AM–11 PM and Friday–Saturday 7:30 AM–midnight. Rental office hours are shorter.

What is the Diamond Bar community center phone number?

Call 909-839-7065 for Heritage Park or Diamond Bar Center facility rental questions. For recreation classes and programs, call 909-839-7070.

Can I rent Heritage Park Community Center?

Yes. The room accommodates up to 110 dining guests or about 200 in theater seating, with tables, chairs and kitchen use included under the published rental description.

How much is Heritage Park Community Center rental?

The 2026–27 hourly rental rate is $78.02 for Group C, $92.21 for Group D residents and local businesses, and $127.69 for Group E. A $200 cleaning deposit is listed.

How much does Diamond Bar Center Grand View Ballroom cost?

The 2026–27 Monday–Thursday full-ballroom rates are $177.33 per hour for Group C, $262.45 for Group D and $354.66 for Group E. Weekend minimums and additional fees differ.

How far ahead can I reserve Diamond Bar Center?

Qualifying Diamond Bar residents, businesses and nonprofits may reserve up to 24 months in advance. Nonresidents and other groups may reserve up to 20 months ahead, subject to availability and approval.

What programs are offered in Diamond Bar community centers?

The City offers seasonal recreation classes, youth activities, adult programs, senior bingo, dinner dances and community events. The location and registration requirements differ by activity.

Is alcohol allowed at Diamond Bar community center events?

Alcohol may be permitted for approved events at Diamond Bar Center and Heritage Park Community Center, subject to City authorization, permits, required security, deposits and insurance. Rules differ for other park facilities.

How do I register for Diamond Bar recreation classes?

Open the official City Recreation Guide or registration website, select the desired class, review its details, complete the participant waiver and pay through the City’s authorized registration process.

Official Sources & Contact

Rental office: 909-839-7065
Recreation office: 909-839-7070
Email: rentals@diamondbarca.gov

This independent visitor guide is not affiliated with the City of Diamond Bar. Final reservation approval, pricing, programs and facility access are controlled by City staff.