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Aparthotel

Onyx

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

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Photo gallery for Onyx

Property grounds

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 - 2.1 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
  • ‪Amuse - ‬6 min walk
  • ‪Sabrina's Cafe - ‬7 min walk
  • ‪Starbucks - ‬8 min walk
  • ‪Rex Pizza - ‬5 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 4-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.

Languages

English, French, Spanish

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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

  • Bathtub or shower
  • Designer toiletries
  • Hair dryer
  • Private bathroom

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
  • Smoke-free property

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 University of Pennsylvania 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. 72 out of 110 reviews
Rating 8 - Good. 12 out of 110 reviews
Rating 6 - Okay. 13 out of 110 reviews
Rating 4 - Poor. 6 out of 110 reviews
Rating 2 - Terrible. 7 out of 110 reviews

9.2/10

Cleanliness

9.0/10

Amenities

8.8/10

Property conditions & facilities

8.2/10

Eco-friendliness

Reviews

8/10

Nice place in a great location
Stayed 1 night in Feb 2025

10/10

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

Everything was better than expected, we had everything we needed. We would definitely stay again.
Stayed 2 nights in Feb 2025

10/10

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

8/10

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

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

Great little apartment for our weekend getaway
Stayed 1 night in Apr 2023

10/10

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

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

It was nice. Big and spacious.
Stayed 2 nights in Jun 2024

10/10

Great stay! Thank you Sonder onyx
Stayed 2 nights in May 2023

10/10

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

6/10

I loved how you can walk to many places that has so much culture like love park, museums, and many good bars and restaurants. The view at nice is also a plus from the room and rooftop amazing. Also loved the privacy. What I didn’t like was the looked nice but had so many damages and black smudges on the white walls. Try to get room change and never received a response until the 2nd day I was there, mind you I was there for 3 days. Also had stains on the comforter and the extra one was ripped. I requested a new one didn’t happened until the next day. The elevator also had went out and they never gave a notice even though they say they did. So would I come back to this Sonder no I would not and would not recommend.
The view from the room
The view from the room
Stayed 3 nights in Apr 2025

10/10

Very nice hotel with all amenities. Clean and maintained well
Stayed 1 night in Mar 2023

10/10

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

This property offers a fabulous rooftop area for spectacular views of the city.
Stayed 2 nights in Apr 2023

10/10

Very clean and spacious. Really nice view with large open windows.
Stayed 3 nights in Aug 2023

6/10

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

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 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

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

8/10

The room was very noisy due to the traffic. I understand now why noise canceling ear buds were visible in the room.
Stayed 2 nights in Sep 2024

10/10

the property was in well-maintained condition all was ass needed to be.
Stayed 2 nights in Apr 2023

10/10

excellent
Stayed 1 night in Apr 2023

10/10

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