Indoor Play Atlas
Source-checked Apr 9, 2026

Imagination City

Hillsdale, San Mateo, CA

Hillsdale Mall indoor play space for younger kids with timed weekday sessions, pretend play, and private parties.

Indoor pretend-play and soft-play area at Imagination City in San Mateo.

Editorial notes

What stands out

A strong fit for younger kids and parents who value cleaner timed sessions over all-day free-for-all play.

Good fit

  • Toddlers and preschoolers.
  • Families who prefer scheduled sessions with cleaning resets.
  • Parents planning private parties or weekday indoor play.

Consider another option if

  • Older kids who want a big-kid challenge course.
  • Families expecting weekend drop-in open play.

Know Before You Go

Supervision model
Caregiver supervised

What to Expect

For kids

  • Babies
  • Toddlers
  • Preschoolers
  • Big kids
  • Soft play
  • Climbing structure

For caregivers

  • Caregiver supervised
Visit type
Timed session indoor playground
Read more about this location

Imagination City is a San Mateo indoor play space at Hillsdale Mall focused on younger children and cleaner, timed-session play. The format works well for families who prefer a more structured visit with reset periods between groups, and it also offers private birthday parties and full-venue buyouts.

Hours & Admission

Posted hours

Check posted weekly hours

View full weekly hours
Weekly posted opening hours
Monday10:00 AM – 12:00 PM; 12:30 PM – 2:30 PM; 3:00 PM – 5:00 PM; 5:30 PM – 7:00 PM
Tuesday10:00 AM – 12:00 PM; 12:30 PM – 2:30 PM; 3:00 PM – 5:00 PM; 5:30 PM – 7:00 PM
Wednesday10:00 AM – 12:00 PM; 12:30 PM – 2:30 PM; 3:00 PM – 5:00 PM; 5:30 PM – 7:00 PM
Thursday10:00 AM – 12:00 PM; 12:30 PM – 2:30 PM; 3:00 PM – 5:00 PM; 5:30 PM – 7:00 PM
Friday10:00 AM – 12:00 PM; 12:30 PM – 2:30 PM; 3:00 PM – 5:00 PM
SaturdayPrivate parties and special bookings
SundayPrivate parties and special bookings

Based on posted weekly hours. Holidays, private events, seasonal schedules, and special closures may differ.

Birthday Parties

Party or event options reported

Private birthday parties and venue buyouts are a core part of the business.

Location

Hillsdale Mall, 60 31st Avenue

San Mateo, CA, 94403

Get directions

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Sources & Updates

Source-checked Apr 9, 2026 against 2 public sources

View source and update details
Last check on record
Apr 9, 2026
Sources reviewed
2 public sources

Public sources

Details checked

  • location
  • session format
  • hours pattern
  • sock rule
  • party focus

What changed

  • April 9, 2026

    Added Hillsdale Mall location details, filled timed-session logistics, and clarified that weekends may be party focused.