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Facility Rentals
Planning a celebration, gathering, or special event? Mt. Si Senior Center has a welcoming space to fit the occasion.
From birthdays, baby showers, and graduation parties to retirement celebrations, memorial services, and community gatherings, our flexible and affordable rental spaces make hosting easier.
Our spacious dining room accommodates up to 100 guests and can include access to a licensed commercial kitchen and coffee service—an ideal option for larger events. For smaller gatherings, our bright multi-purpose room offers a comfortable, adaptable setting.
Choose a space that feels inviting, practical, and right for your event. We would be glad to help you find the best fit.
Please note: Renters are responsible for setup and cleanup.
For more information or reservations, contact Demelza Riley at 425-888-3434, ext. 125.
Planning a celebration, gathering, or special event? Mt. Si Senior Center has a welcoming space to fit the occasion.
From birthdays, baby showers, and graduation parties to retirement celebrations, memorial services, and community gatherings, our flexible and affordable rental spaces make hosting easier.
Our spacious dining room accommodates up to 100 guests and can include access to a licensed commercial kitchen and coffee service—an ideal option for larger events. For smaller gatherings, our bright multi-purpose room offers a comfortable, adaptable setting.
Choose a space that feels inviting, practical, and right for your event. We would be glad to help you find the best fit.
Please note: Renters are responsible for setup and cleanup.
For more information or reservations, contact Demelza Riley at 425-888-3434, ext. 125.
for Rental Information
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for Rental FAQs
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for Non-profit Guidelines
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for Rental Policies
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for Rental Facilities Request Form
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Multi Purpose Room:
Hosting a public meeting, workshop, class, or community event? The Multipurpose Room is Mt. Si Senior Center’s largest and most flexible rental space, offering plenty of room, natural light, and options for a wide range of gatherings. Sliding glass doors overlook Gardiner Weeks Park, while the updated flooring and open layout create a bright, comfortable setting. A movable wall allows the room to be divided for breakout sessions or smaller groups, and the adjoining kitchenette adds convenience for refreshments and event preparation. Included with your rental: ✔️ Tables and chairs ✔️ Separate entrance ✔️ Adjacent restrooms ✔️ Park views and fresh air 
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Dining Room:
Our beautifully renovated dining room offers a warm, inviting setting for celebrations, fundraisers, weddings, and private gatherings. Floor-to-ceiling windows, striking stonework, new carpeting, and a spacious, flexible layout create an appealing backdrop for events of all kinds. The room includes eight-person round tables and chairs, a commercial coffee maker, convenient nearby restrooms, and access to a licensed commercial kitchen—making it easy to host guests comfortably and confidently. 
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Classroom:
Perfect for small groups, meetings, or classes, Mt. Si Senior Center’s classroom offers a comfortable and focused setting just off the north entrance. This cozy space features a conference table with chairs, a serene view of the courtyard, and adjacent restrooms for added convenience—making it an ideal spot for workshops, discussion groups, or planning sessions. Quiet, convenient, and just the right size for meaningful connection. 
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Commercial Kitchen:
Our licensed commercial kitchen is fully equipped and ready to support your next culinary event or large-scale meal prep. The space includes two ovens, a four-burner gas range, a serving pass-through window, and a sanitizing dishwasher, along with a full inventory of pots, pans, and trays—all meeting Washington State Health Department standards. A valid food handler's permit is required for anyone using the kitchen. This space can be rented on its own or paired with the dining room for full-service event hosting. Ideal for caterers, community meals, or cooking classes! 
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