See all properties
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

Reviews

8.6 out of 10
Excellent

Popular amenities

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

Explore the area

View in a map
305 North 15th Street, Philadelphia, PA, 19102
  • Place, Pennsylvania Convention Center
    ‪6 min walk‬
  • Place, Benjamin Franklin Parkway
    ‪8 min walk‬
  • Place, Reading Terminal Market
    ‪9 min walk‬
  • Airport, Philadelphia, PA (PHL-Philadelphia Intl.)
    ‪15 min drive‬

Room options

You may also like

Ad
Front of property

Valley Forge Casino Resort

King of Prussia
  • Pool
  • Parking included
  • Free WiFi
  • Restaurant
8.4 out of 10, Very Good, 1,017 reviews
$103 nightly
The price is $114
Jan 11 - Jan 12, 2026
Total with taxes and fees
Valley Forge Casino Resort

About the neighborhood

Philadelphia

Located in Center City, Onyx is a leisurely stroll from popular sights such as Pennsylvania Convention Center and Reading Terminal Market. This 21-room, 3.5-star aparthotel has in-room conveniences like kitchens, dining areas, and refrigerators.
View more Aparthotels in PhiladelphiaOpens in a new window

What's nearby

  • Pennsylvania Convention Center - 6 min walk - 0.4 miles
  • Benjamin Franklin Parkway - 8 min walk - 0.5 miles
  • Fairmount Park - 8 min walk - 0.5 miles
  • City Hall - 9 min walk - 0.5 miles
  • Reading Terminal Market - 9 min walk - 0.5 miles

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
  • ‪Shay’s Steaks - ‬5 min walk
  • ‪Fat Moon Restaurant & Bar - ‬1 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
Guests of Onyx enjoy features like a gym, free WiFi in public areas, and laundry facilities. Helpful staff is there to provide concierge services, as well as offer insight about the area.
Each apartment is individually decorated and features a kitchen and space to spread out with a separate bedroom and a dining area. Guests can expect to find a 50-inch flat-screen TV with cable channels. The bathroom offers hair dryers and designer toiletries. Housekeeping is available on request.
Recreational amenities at the aparthotel include a fitness center.

Similar properties

Standard Apartment, 1 Queen Bed | 1 bedroom, iron/ironing board, free WiFi
24 Stay Rittenhouse
  • Washer
  • Dryer
  • Free WiFi
  • Outdoor Space
24 Stay Rittenhouse

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) (for a fee)

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
Information provided by the property may be translated using automated translation tools

Access methods

Access code, host will greet you

Pets

  • This property doesn't allow pets (service animals welcome)

Children and extra beds

  • Free cribs/infant beds are available

Property payment types

Important information

Optional extras

These fees and deposits will be charged at check-in, check-out, or the time of service.

  • Housekeeping fee: USD 89

This list may not be comprehensive. Fees and deposits might 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
  • Check-in: 4:00 PM—-anytime
  • Check-out: 11:00 AM
  • Minimum check-in age: 18
Property Registration Number 914916

We should mention

Details about charges, deposits, or other important information:

  • This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession.
  • Charges for extra guests may apply and vary depending on the property's policy.
  • A cash deposit, credit card, or debit card for incidental charges, as well as a government-issued photo ID, may be required at check-in.
  • Special requests are subject to availability at the time of check-in and can't be guaranteed. Certain requests may come with additional charges.
  • No parking is available onsite.
  • This property accepts credit cards. Cash is not accepted. 
  • Onsite safety features include a carbon monoxide detector, a fire extinguisher, a smoke detector, and a first aid kit.

Additional information about polices, regulations, and more:

  • No rollaway or extra beds are available.
  • Noise-free rooms can't be guaranteed.
  • This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly).

Frequently asked questions

Is a free cancellation option available at Onyx?

Onyx provides free cancellation on some room rates. If you'd like to learn more, take a look at the cancellation policy on our site.

What's there to do around Onyx?

This aparthotel is situated in Center City within a short 18-minute walk of Rittenhouse Square and also 12 minutes on foot from Reading Terminal Market. You'll also find Lincoln Financial Field and Liberty Bell Center within a short drive.

Is parking available on site at this aparthotel?

No, there isn't parking at this aparthotel.

Does Onyx feature a casino at the property?

No, Onyx doesn't have a casino.

Is there an indoor pool at Onyx?

No, there is no indoor pool at this aparthotel.

What will couples enjoy most about a stay at Onyx?

Couples staying at this aparthotel will value amenities like a kitchen, kitchens in some apartments, as well as concierge services.

Are there hot tubs at Onyx?

No, there isn't a spa tub at this aparthotel.

Does Onyx have a restaurant that serves breakfast?

No, Onyx doesn't have a restaurant that serves breakfast.

Will Onyx allow pets to stay free of charge?

No, pets aren't allowed at Onyx though service animals are welcome.

Are there connecting rooms at this aparthotel?

No, there aren't connecting rooms at this aparthotel.

Where is the closest airport to Onyx?

The closest major airport to Onyx is Philadelphia Intl. Airport (PHL), which is 11 mi away (18 minutes by car). Another top airport is Philadelphia, PA (PNE-Northeast Philadelphia), which is located 14 mi away (31-minute drive).

Can I book a room with a balcony at Onyx?

No, at Onyx, there aren't any apartments that list a balcony.

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

10/10 Excellent

Mohamed

Traveled with family
Liked: Cleanliness, room comfort
Stayed 2 nights in Jun 2025

4/10 Poor

norma

Stayed 3 nights in Jun 2025

2/10 Terrible

Gregory

Im on hold for 15 minutes trying to get into the damn hotel after a long trip to get here. This is the worst ever experience at a hotel in my whole life. Never again
Stayed 1 night in Jun 2025

10/10 Excellent

Efrain

Liked: Cleanliness, amenities, property conditions & facilities
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

maria

Traveled with family
Liked: Cleanliness, room comfort
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

6/10 Okay

Jasmine

Traveled with partner
Liked: Cleanliness, amenities
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

8/10 Good

Lakeisha

Liked: Cleanliness, amenities, property conditions & facilities
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

Travis

Liked: Cleanliness, amenities, property conditions & facilities
Stayed 3 nights in Mar 2025

6/10 Okay

DOUG

Traveled with family
Liked: Cleanliness

Nice but loud and unsecure entry to main hallway

It would be ideal hotel for a solo trip with no kids. No front counter or drive up area to unload luggage Door to the lobby is very unsecure, questionable People in the hallway at times. Rooms are very loud due to outside traffic. Rooms were nice, probably would not stay there again.
Stayed 1 night in Mar 2025

10/10 Excellent

Rachael

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

8/10 Good

Ben

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

8/10 Good

Verified traveler

Liked: Cleanliness, room comfort
Stayed 3 nights in Jan 2025

10/10 Excellent

Sara

Traveled with family
Liked: Cleanliness, room comfort

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

6/10 Okay

Candacy, Springfield Gardens

Disliked: Cleanliness, amenities
The walls were dirty in spots, dryer kept clothes damp after it was on for three hours, dish sponge was in plastic wrapper but when I opened it, the sponge was damp which I didn’t expect. Garbage disposal was not cleaned upon arrival. When I turned it on, it spit food back into the sink. Hotel is on a desolate street and the entrance is down an alley. There are homeless people sleeping on the corner - since the hotel has no staff there is no way to avoid this. The luggage lockers are supposed to only be occupied by guests for 24 hours max at a time. The lockers were occupied more than 24 hours and I checked very, very often. This hotel functions on the fact that they have no staff so please do not expect anyone from the chat function/call center to help you. I was ghosted multiple times (I took snapshots to prove it) and told on the phone there was nothing they could do. Save your money and stay somewhere with real people that care.
Stayed 2 nights in Nov 2024

10/10 Excellent

Andre

Traveled with partner
Liked: Cleanliness, amenities, property conditions & facilities
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

6/10 Okay

Justin

Liked: Cleanliness
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

2/10 Terrible

T

Business traveler
Liked: Cleanliness, amenities, property conditions & facilities
noise the wall is so thin - cannot sleep.
Stayed 4 nights in Oct 2024

10/10 Excellent

Matthew

Business traveler
Liked: Cleanliness, room comfort
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

Cassandre

Liked: Cleanliness, amenities, property conditions & facilities
It was close to all the historical sites, Chinatown, and restaurants.
Stayed 3 nights in Oct 2024

10/10 Excellent

Cassandre

Liked: Cleanliness, amenities, property conditions & facilities
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

Jan

Traveled with family
Liked: Cleanliness, room comfort
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

8/10 Good

Aaron, Warren

Business traveler
Liked: Cleanliness, amenities, property conditions & facilities
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

6/10 Okay

CHANCHAL

Business traveler, Traveled with partner
Liked: Cleanliness, property conditions & facilities
I was expecting a more equipped kitchen. The knives are partially damaged. The microwave is awkwardly positioned; hard to reach. The dishwasher was inoperable; had stagnant water in it. Chairs and the kitchen table did not look clean. Shower stall in the bathroom is too narrow. Position of the soap bottles on the side wall make the shower stall effectively narrower. It is inconvenient to reach the handle and open the water tap without cold water falling on you as the showerhead is vertically positioned right above. All in all, I was expecting somewhat better for the price tag.
Stayed 4 nights in Jul 2024

10/10 Excellent

Lakisha

Liked: Cleanliness, room comfort
Stayed 1 night in Jul 2024

10/10 Excellent

Jesse

Stayed 1 night in Jul 2024