Skip to main content
Aparthotel

Onyx

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

Choose dates to view prices

Sonder Onyx offers a comfortable base in downtown Philadelphia with public WiFi throughout. The on-site gym helps maintain fitness routines, and convenient laundry facilities make longer stays practical in this centrally located urban retreat.

Reviews

8.6 out of 10
Excellent

Popular amenities

  • Kitchen
  • Free Wi-Fi
  • Air-conditioning
  • Laundry room
  • Gym

You may also like

Ad
Lobby sitting area

Alexander Inn

Center City
  • Breakfast included
  • Pet-friendly
  • Free Wi-Fi
  • Air-conditioning
8.8 out of 10, Excellent, 1,318 reviews
The price is ₹9,197
₹10,622 total
includes taxes & fees
25 Jan - 26 Jan
Alexander Inn
Mod logo
Sign in to view eligible discounts and perks. More rewards for more adventures!
Sign inSign up, it's free

About the area

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

What's nearby

  • Pennsylvania Convention Center - 6 min walk - 0.6 km
  • Benjamin Franklin Parkway - 8 min walk - 0.7 km
  • Fairmount Park - 8 min walk - 0.7 km
  • City Hall - 9 min walk - 0.8 km
  • Reading Terminal Market - 9 min walk - 0.8 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
  • ‪Shay’s Steaks - ‬5 min walk
  • ‪Fat Moon Restaurant & Bar - ‬1 min walk
  • ‪Retro Fitness - ‬4 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 3.5-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.

Similar properties

Front of property
ROOST Rittenhouse
  • Pet-friendly
  • Free Wi-Fi
  • Air-conditioning
  • Business services
9.4 out of 10, Exceptional, 255 reviews
ROOST Rittenhouse

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

  • 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.
  • Lift
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible registration desk
  • Smoke-free property

Services and conveniences

  • Concierge services
  • Housekeeping (on request) (for a fee)

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

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 Philadelphia Museum of Art 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.

Have a question?

AI iconBeta

Get instant answers with AI powered search of property information and reviews.

Reviews

Onyx Reviews

8.6

Excellent

9.2

Cleanliness

9.0

Amenities

8.2

Eco-friendliness

9.0

Property conditions & facilities
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

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

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

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

Michele

Liked: Cleanliness, room comfort, communication
Accommodations were outstanding! We will definitely stay again!
Stayed 2 nights in Dec 2023

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

Michael

Liked: Cleanliness, amenities, property conditions & facilities, communication
Easy, good location, great kitchen.
Stayed 1 night in May 2023

10/10 Excellent

Lakisha

Liked: Cleanliness, amenities, property conditions & facilities, communication
Beautiful view- clean and perfect for our stay
Stayed 1 night in May 2023

10/10 Excellent

Kathleen

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

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

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

2/10 Terrible

Gregory

Disliked: Communication
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

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

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

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

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

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

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

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

6/10 Okay

Melody

Liked: Cleanliness, communication
Disliked: Room comfort
Nice place to stay. Just super loud and noisy. Not sure we would stay again just because of the noise.
Stayed 3 nights in Apr 2024

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

6/10 Okay

DOUG

Liked: Cleanliness, communication

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

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

Maranda

Liked: Cleanliness, amenities, property conditions & facilities, communication
It was really nice, modern looking. nice shower and kitchen. comfortable bed and couch, great TV and sound. my boyfriend and i enjoyed the stay a lot, and we would definitely book again at Sonder.
Stayed 4 nights in May 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