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Aparthotel

Onyx

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

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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 area

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 International 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 centre, near Rittenhouse Square
A fitness centre, 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 fridge, 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 a hairdryer. Each accommodation is individually furnished and decorated. Accommodation at this 4-star aparthotel has kitchens with fridges, separate dining areas and kitchenware and utensils.

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

Recreational amenities at the aparthotel include a fitness centre.

Languages

English, French, Spanish

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Property amenities

Internet

  • Available in some public areas: Free WiFi

Parking and transport

  • No on-site parking available

Family friendly

  • Free cot

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.
  • Lift
  • 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 centre
  • 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 and check-out are available
Minimum check-in age - 18

Check-out

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

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 checkout, or pay an additional cleaning fee of USD 89 at checkout

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 cots are available on request at the property

Payment types at the property

Important information

Optional extras

  • Cleaning/housekeeping/linen 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 that there is a carbon monoxide detector on the property
Host has indicated that 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?

Checkout 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 miles (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

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

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

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

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

10/10

excellent
Stayed 1 night in Apr 2023