Indoor Play Atlas
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VerifiedFixed locationCaregiver + Child Studios

Play Union

Union Square, Somerville, MA

Warm Union Square play-and-craft studio with imaginative setups, weekday drop-in play, coffee, and Wi-Fi for caregivers.
Plan This Visit

Best for

Best for babies through preschoolers; limited appeal for most kids over about age 6 or 7.

Hours

Monday-Friday 9:00 AM-5:00 PM; closed Saturday and Sunday.

Parking

Two private lot spaces are reserved for Play Union visitors, with nearby metered and two-hour street parking.

Visit style

Weekday drop-in studio play with light structured programming.

Birthday parties

Available

Profile

Strong profile coverage

Atlas Perspective

Editor's Take

Best as a slower-paced weekday outing for toddlers and preschoolers with a caregiver who wants coffee, Wi-Fi, and imaginative play instead of big-energy climbing.

Atlas Perspective

Best Fit

Best For
  • Toddlers and preschoolers who love pretend play and crafts
  • Caregivers who want coffee, seating, and Wi-Fi during play
  • Weekday drop-in outings and small birthday celebrations
Less Ideal For
  • Families looking for weekend hours
  • Older kids wanting climbing structures or high-energy attractions
  • Drop-off care or unsupervised visits

At a Glance

Venue type

Kids activity center

Age groups

BabiesToddlersPreschoolers

Play features

Pretend play

Family amenities

Coffee availableWi-Fi

Birthday party options

Birthday partiesFull venue buyoutParty packages

Visit options

Open playMembership availableDrop-in visitsClasses or events

Price range

Mid-range

Toddler-friendly

Yes

Operator type

Commercial

Play model

Mixed open play + classes

Supervision model

Caregiver supervised

Max recommended age

Under 7

Structured classes or guided programming

Yes

Plan Your Visit

Hours

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
SaturdayClosed
SundayClosed
Notes
Check the calendar or social channels for special events and school-break updates.
ParkingTwo private lot spaces are reserved for Play Union visitors, with nearby metered and two-hour street parking.
TransitAbout a 5-minute walk from the Union Square Green Line stop.
Programming
Friday singalong around 11:30 AM
Hours SummaryMonday-Friday 9:00 AM-5:00 PM; closed Saturday and Sunday.
Caregiver Setup
Complimentary coffee and teaWi-Fi availableCaregiver-supervised play

Pricing Snapshot

Day Pass

Child

$20

Adults

Free

Ages 0 To 1

$10

Additional Child

$10
Memberships

One Month

$130

Six Months

$600

Four Months

$440
Multi Visit Passes

Ten Visits

$160

Five Visits

$90

About the Venue

Play Union is a bright Somerville studio designed for younger children and their grown-ups, with pretend-play scenes, craft tables, small-world activities, and a relaxed caregiver setup. Families come for weekday drop-in play, memberships, coffee and tea, Wi-Fi, singalongs, and small private parties that feel more intimate than a big indoor playground.

Atlas Perspective

Indoor Play Atlas Notes

Age FitBest for babies through preschoolers; limited appeal for most kids over about age 6 or 7.
Noise LevelUsually moderate, with louder moments during singalong and parties.
Visit StyleWeekday drop-in studio play with light structured programming.
Energy LevelLow To Medium
Parent ComfortStrong for caregivers who want seating, coffee, and Wi-Fi.
Booking FrictionLow for everyday visits; moderate for private parties.

Birthday Party Snapshot

Includes
Exclusive use of the spaceBasic paper goods and tableclothsBalloon bunches15 minutes each for setup and cleanup
Private Party

Deposit

$50

Duration

2 hours

Base Price

$450 for up to 15 children

Additional Children

$10 each
Member Discount10% off listed party pricing
Optional Add Ons
30 extra minutes for $60Party crafts for $5 per child

Accessibility & Comfort

Notes
Contact the venue directly for specific accessibility questions or space needs.
Entry And LayoutSingle indoor studio layout with caregiver-supervised play areas and tables for crafts.
Sensory ProfileUsually calmer and lower-stimulation than a trampoline or arcade venue, though singalongs and parties add noise.

External Links

WebsiteFacebookInstagramDirections

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Quick Summary

Best for

Best for babies through preschoolers; limited appeal for most kids over about age 6 or 7.

Hours

Monday-Friday 9:00 AM-5:00 PM; closed Saturday and Sunday.

Parking

Two private lot spaces are reserved for Play Union visitors, with nearby metered and two-hour street parking.

Visit style

Weekday drop-in studio play with light structured programming.

Contact Information

Address

378 Somerville Ave

Somerville, MA, 02143

Location
MassachusettsGreater BostonSomerville, MA
Source & Verification

Last updated

April 18, 2026

Verification summary

Last verified: April 7, 2026

Checked against 3 public sources.

Reviewed as

Business website and public-source review

What Changed

April 7, 2026

Verified official hours, address, pricing, amenities, and party details; refreshed editorial fields.

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