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Aparthotel

Onyx

3.5 star property
Aparthotel with a fitness center, near Rittenhouse Square

Choose dates to view prices

Photo gallery for Onyx

Property grounds
In the heart of Philadelphia, Sonder Onyx offers a cozy retreat with modern amenities. Stay connected with public WiFi, get active in the gym, and take advantage of laundry facilities for a stress-free stay.

Reviews

8.6 out of 10
Excellent

Popular amenities

  • Gym
  • Laundry
  • Kitchen
  • Air conditioning
  • Free WiFi

Room options

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About the neighborhood

Map
305 North 15th Street, Philadelphia, PA, 19102

What's nearby

  • Pennsylvania Convention Center - 6 min walk - 0.6 km
  • Reading Terminal Market - 9 min walk - 0.8 km
  • Rittenhouse Square - 16 min walk - 1.4 km
  • Philadelphia Museum of Art - 2 min drive - 1.8 km
  • Liberty Bell Center - 2 min drive - 1.8 km

Getting around

  • Philadelphia, PA (ZFV-30th Street Rail Station) - 3 min drive
  • Race Vine Station - 3 min walk
  • Philadelphia Intl. Airport (PHL) - 18 min drive

Restaurants

  • ‪local. - ‬5 min walk
  • ‪Fat Moon Restaurant & Bar - ‬1 min walk
  • ‪Rex Pizza - ‬5 min walk
  • ‪Retro Fitness - ‬4 min walk
  • ‪QQ Mini Mart - ‬8 min walk

About this property

Onyx

Aparthotel with a fitness center, near Rittenhouse Square
A fitness center, concierge services, and laundry facilities are available at this smoke-free aparthotel. WiFi in public areas is free. Each apartment features a kitchen with a refrigerator, plus a dining area and a flat-screen TV with cable channels. Housekeeping is available on request.
Onyx offers 21 air-conditioned accommodations with designer toiletries and hair dryers. Each accommodation is individually furnished and decorated. Accommodations at this 3.5-star aparthotel have kitchens with refrigerators, separate dining areas, and cookware/dishes/utensils.

Bathrooms include bathtubs or showers. 50-inch flat-screen televisions come with cable channels. Housekeeping is provided on request.

Recreational amenities at the aparthotel include a fitness center.

Property amenities

Internet

  • Available in some public areas: Free WiFi

Parking and transportation

  • No onsite parking available

Family friendly

  • Free crib

Kitchen

  • Cookware, dishware, and utensils
  • Refrigerator

Bedrooms

  • Bedroom

Bathroom

  • 1 private bathroom
  • Bathtub or shower
  • Designer toiletries
  • Hair dryer

Living spaces

  • Separate dining area

Entertainment

  • 50-inch flat-screen TV with cable channels

Laundry

  • Laundry facilities

Comfort

  • Air conditioning

Pets

  • Service animals only (pets not allowed)

Suitability/Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Elevator
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible registration desk
  • Smoking not allowed

Services and conveniences

  • Concierge services
  • Housekeeping (on request)

Location highlights

  • In the city center
  • Near a metro station

Things to do

  • Gym

Safety features

  • Carbon monoxide detector (host has indicated there is a carbon monoxide detector on the property)
  • Smoke detector (host has indicated there is a smoke detector on the property)
  • First aid kit
  • Fire extinguisher

General

  • 21 units
  • Housekeeping (on request)
  • Individual decor
  • Individual furnishings

Policies

Check-in

Check-in start time: 4:00 PM; Check-in end time: anytime
Contactless check-in available
Minimum check-in age: 18

Check-out

Check-out before 11:00 AM
Contactless check-out available

Special check-in instructions

There is no front desk at this property
Guests will receive an email within 72 hours before arrival with check-in instructions and an access code; your host will greet you
Prior to arrival, you must complete online registration via a secure link
You will be asked to provide the property with a copy of your government-issued photo ID after booking
Guests are recommended to download the property's Sonder mobile app before check-in
Guests can choose to either self-clean the property prior to check-out, or pay an additional cleaning fee of USD 89 at check-out

Access methods

Access code, host will greet you

Pets

Pets not allowed (service animals welcome)

Children and extra beds

Children are welcome
Rollaway/extra beds are not available
Free cribs are available on request at the property

Property payment types

Important information

Optional extras

  • Housekeeping fee: USD 89

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards; cash is not accepted
Noise-free guestrooms cannot be guaranteed
Host has indicated there is a carbon monoxide detector on the property
Host has indicated there is a smoke detector on the property
Safety features at this property include a fire extinguisher and a first aid kit
Property Registration Number 914916

We should mention

This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly)

Frequently asked questions

Is Onyx pet-friendly?

No, only service animals are welcome at the property.

How much is parking at Onyx?

This property doesn't offer parking.

What time is check-in at Onyx?

Check-in start time: 4:00 PM; Check-in end time: anytime.

What time is check-out at Onyx?

Check-out is at 11:00 AM.

Where is Onyx located?

Located in Center City, this aparthotel is within a 15-minute walk of Love Park, Pennsylvania Convention Center, and Reading Terminal Market. Rittenhouse Square and Philadelphia Museum of Art are also within 2 mi (3 km). Race Vine Station is only a 3-minute walk and Spring Garden Station (Broad St) is 7 minutes.

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Onyx Reviews

Reviews

8.6

Excellent

Rating 10 - Excellent. 73 out of 112 reviews
Rating 8 - Good. 12 out of 112 reviews
Rating 6 - Okay. 13 out of 112 reviews
Rating 4 - Poor. 7 out of 112 reviews
Rating 2 - Terrible. 7 out of 112 reviews

9.2/10

Cleanliness

9.0/10

Amenities

9.0/10

Property conditions & facilities

8.2/10

Eco-friendliness

Reviews

8/10 Good

Ben

Liked: Cleanliness, room comfort, communication
Nice place in a great location
Stayed 1 night in Feb 2025

10/10 Excellent

Efrain

Liked: Cleanliness, amenities, property conditions & facilities, communication
Quiet location, beautiful and modern decor. Windows floor to ceiling brings lots of light and a great view. The only bad thing I can say is that you can hear everything from next room…
Stayed 1 night in Apr 2025

10/10 Excellent

Rachael

Liked: Cleanliness, room comfort, communication
Everything was better than expected, we had everything we needed. We would definitely stay again.
Stayed 2 nights in Feb 2025

10/10 Excellent

Andre

Liked: Cleanliness, amenities, property conditions & facilities, communication
Perfectly situated, impeccably clean, and generously spacious. The convenience of having parking right next door makes it even better.
Stayed 2 nights in Nov 2024

10/10 Excellent

maria

Liked: Cleanliness, room comfort, communication
My first time staying at a Sonder. The location was close to Temple University. Parking lot access right next door. Room was spacious and had all the amenities. My husband is handicap and in a wheelchair so I live chatted and asked for assistance and even though there is no on site help they sent Jonathan to help and he was great. Like your own little apartment. Only con was could hear person above us walking. Sounded like jolly green giant.
Stayed 3 nights in May 2025

10/10 Excellent

Matthew

Liked: Cleanliness, room comfort, communication
I came to Philly for a conference. This is a perfect 10 minute walk away from the convention center and also very close to many attractions downtown.
Stayed 4 nights in Nov 2024

10/10 Excellent

Kathleen

Liked: Cleanliness, amenities, property conditions & facilities, communication
Great little apartment for our weekend getaway
Stayed 1 night in Apr 2023

8/10 Good

Lakeisha

Liked: Cleanliness, amenities, property conditions & facilities, communication
The only complaints I have is that my shower head was broken and it was a little noisy. They did however provide earplugs which was beet helpful.
Stayed 3 nights in Apr 2025

10/10 Excellent

Jan

Liked: Cleanliness, room comfort, communication
A prefect stay, I will definitely stay here again if I am coming back to Philadelphia. A very good location, fitness and rooftop made the stay extra good. Everything I needed and more. ❤️
Stayed 4 nights in Oct 2024

10/10 Excellent

Jenika

Liked: Cleanliness, amenities, property conditions & facilities, communication
Great stay! Thank you Sonder onyx
Stayed 2 nights in May 2023

10/10 Excellent

Steven

Liked: Cleanliness, amenities, property conditions & facilities, communication
The view of the city from our room was amazing. It's very close to the "Fashion District" which has a ton of great shops, restaurants, and much more. I would definitely stay here again.
Stayed 1 night in Jun 2023

10/10 Excellent

Sara

Liked: Cleanliness, room comfort, communication

Fantastic location

The apartment was beautiful and within easy walking distance of everything. The view was spectacular. The terrace would be lovely when the weather is warmer. I am already planning another trip. There are only 2 things to be aware of: 1) unloading luggage is challenging, there isn't really a good place to park 2) be aware that the main bed is a double and not a queen.
Stayed 3 nights in Dec 2024

8/10 Good

David

Liked: Cleanliness, amenities, property conditions & facilities, communication
It was nice. Big and spacious.
Stayed 2 nights in Jun 2024

10/10 Excellent

Malathi

Liked: Cleanliness, amenities, property conditions & facilities, communication
Very nice hotel with all amenities. Clean and maintained well
Stayed 1 night in Mar 2023

10/10 Excellent

Joan Marie

Liked: Cleanliness, amenities, property conditions & facilities, communication
This property offers a fabulous rooftop area for spectacular views of the city.
Stayed 2 nights in Apr 2023

10/10 Excellent

Susanna

Liked: Cleanliness, amenities, property conditions & facilities, communication
Very clean and spacious. Really nice view with large open windows.
Stayed 3 nights in Aug 2023

10/10 Excellent

Joel

Liked: Cleanliness, room comfort, communication

Great value for Philly city center.

Very happy with this aparthotel, just on the outskirts of the city center, good location for a lot of major attractions. Nearby parking was a breeze. Apartment was nicely furnished and in good condition. Very clean. Would be happy to return.
Stayed 2 nights in Jul 2024

10/10 Excellent

Sherry

Liked: Cleanliness, amenities, property conditions & facilities, communication
Excellent amenities - dishwasher, W/D, high end linens, big screen TV, rain shower head, full kitchen, gym. Loved my stay at Sonder Onyx!! Highly recommend.
Stayed 2 nights in May 2023

10/10 Excellent

Joseph Francis

Liked: Cleanliness, amenities
Wonderful location and amazingly decorated. Only concern is that on-site staff were not quick to fix issues with the unit's facilities, though support employees were great with addressing problems. Otherwise, definitely recommend if you're staying in Philly!
Stayed 2 nights in Jul 2024

10/10 Excellent

Cassandre

Liked: Cleanliness, amenities, property conditions & facilities, communication
There is no noise control. You can hear the cars, trucks, etc from the road. However, great spot. Clean building and clean apartment.
Stayed 1 night in Oct 2024

10/10 Excellent

International Mechanical Services nv

Liked: Cleanliness, amenities, property conditions & facilities, communication
the property was in well-maintained condition all was ass needed to be.
Stayed 2 nights in Apr 2023

10/10 Excellent

Laisha

Liked: Cleanliness, amenities, property conditions & facilities, communication
excellent
Stayed 1 night in Apr 2023

6/10 Okay

Justin

Liked: Cleanliness, communication
Very modern vibe. Which was confusing b/c there were no USB or USB-C ports to charge your phone(s). The dishwasher was broken and the coffee grounds were expired.
Stayed 1 night in Nov 2024

10/10 Excellent

Tyiese

Liked: Amenities, property conditions & facilities
I enjoyed my stay. My only complaint is the slow elevator and thin walls. I could hear everything my neighbors were talking about/ listening too.
Stayed 2 nights in Jul 2023

10/10 Excellent

David

Liked: Cleanliness, amenities, property conditions & facilities, communication
We stayed at a one bed room apartment for a week and totally enjoyed it. The apartment is new, well decorated and clean; there is a small but nice gym on the basement. The neighborhood is a little noisy from the street traffic at night (the windows could use a bit better insulation). Not too many restaurants or shops in the immediate surrounding but we had no problem using Uber to get around. Overall, we really liked it.
Stayed 7 nights in Jul 2024