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The Onyx

Property class: 2

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Photo gallery for The Onyx

A rooftop pool area with a hot tub, lounge chairs, and a city view at dusk.
A modern living room with a sofa, armchair, and coffee table.
A modern hotel room with a large bed, a dining area with a table and chairs, a sofa, and a large mirror.
A modern living room with a grey sofa, two armchairs, a coffee table, and a large window offering a city view.
A modern hotel with a curved facade, large glass windows, and a prominent 'ONYX' sign.

Reviews

10 out of 10
Exceptional

Popular amenities

  • Restaurant
  • Gym
  • Laundry

Explore the area

View in a map
57 Heerengracht St, Cape Town, WC, 8000
  • Place, Cape Town International Convention Centre
    ‪2 min walk‬
  • Place, Long Street
    ‪3 min walk‬
  • Place, Bree Street
    ‪5 min walk‬
  • Airport, Cape Town (CPT-Cape Town Intl.)
    ‪22 min drive‬

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Total with taxes and fees
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About the neighborhood

Cape Town

Located in Cape Town City Centre, The Onyx is within a 5-minute walk of Cape Town International Convention Centre and within 15 minutes of other popular attractions like Long Street. This hotel welcomes guests with conveniences like a restaurant, a gym, and concierge services.

What's nearby

  • Cape Town International Convention Centre - 2 min walk - 0.1 miles
  • Long Street - 3 min walk - 0.2 miles
  • Adderley Street - 3 min walk - 0.2 miles
  • Bree Street - 5 min walk - 0.3 miles
  • Greenmarket Square - 8 min walk - 0.4 miles

Getting around

  • Woodstock Station - 3 min drive
  • Cape Town Station - 9 min walk
  • Cape Town Intl. Airport (CPT) - 21 min drive

Restaurants

  • ‪Southern Sun Waterfront Cape Town - ‬7 min walk
  • ‪Col'Cacchio - ‬8 min walk
  • ‪The Coffee Shop on Long - ‬6 min walk
  • ‪Westin Executive Club Lounge - ‬5 min walk
  • ‪Starbucks Foreshore Cape Town - ‬8 min walk

About this property

The Onyx

The Onyx features a gym and laundry facilities. Friendly staff can provide concierge services, and also offer advice about sightseeing.
Recreational amenities at the hotel include a fitness center.

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AC Hotel by Marriott Cape Town Waterfront
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  • Free WiFi
  • Restaurant
  • Air conditioning
9.4 out of 10, 784, 784 reviews
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Sep 28 - Sep 29
Total with taxes and fees
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Property amenities

Food and drink

  • A restaurant

Things to do

  • Gym

Family friendly

  • Laundry facilities

Conveniences

  • Laundry facilities

Guest services

  • Concierge services

Accessibility

  • Elevator

Policies

Special check-in instructions

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

Important information

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

We should mention

Details about charges, deposits, or other important information:

  • 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.

Property is also known as

The Onyx Hotel

The Onyx Cape Town

The Onyx Hotel Cape Town

Frequently asked questions

What is there to do near The Onyx?

This hotel is situated in Cape Town City Centre, just steps from Adderley Street, and within a 10-minute walk of Long Street and Artscape Theatre Centre. You'll also find Castle of Good Hope and South Africa Library less than a mile away.

How much does it cost to stay at The Onyx?

As of Sep 15, 2026, prices found for a 1-night stay for 2 adults at The Onyx on Sep 19, 2026 start from $169, including taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Will I be able to park at The Onyx?

No, there isn't parking available at the hotel.

Does The Onyx include a casino?

No, The Onyx doesn't have a casino.

Is there an indoor pool at The Onyx?

No, there is no indoor pool at this hotel.

What will couples enjoy most about a stay at The Onyx?

Couples will appreciate amenities like a restaurant, concierge services, and a gym at this hotel.

Are there hot tubs at The Onyx?

No, this hotel doesn't have a spa tub.

Does The Onyx have a restaurant that serves breakfast?

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

Are there connecting rooms at The Onyx?

No, there aren't connecting guestrooms at this hotel.

Where is the closest airport to The Onyx?

The closest major airport to The Onyx is Cape Town Intl. Airport (CPT), which is 13.3 mi away (21 minutes by car).

Can I book a room with a balcony at The Onyx?

No, there aren't any guestrooms at The Onyx that offer a balcony.

The Onyx Reviews

Reviews

10

Exceptional

Rating 10 - Excellent. 1 out of 1 reviews
Rating 8 - Good. 0 out of 1 reviews
Rating 6 - Okay. 0 out of 1 reviews
Rating 4 - Poor. 0 out of 1 reviews
Rating 2 - Terrible. 0 out of 1 reviews

Reviews

Verified review

10/10 Excellent

Edward

Stayed 3 nights in May 2026