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8.4

5,307 reviews

Mix Brussels --Gym & Wellness for adults only--

Mix Brussels --Gym & Wellness for adults only--

25 Boulevard du Souverain , Brussels, 1170, Belgium

Choose dates to view prices

Spa/Wellness packages

Restaurant

Indoor swimming pool

Outdoor swimming pool

Free wifi

Room service

Fitness center

Turkish/Steam Bath

Mix Brussels --Gym & Wellness for adults only--

Mix Brussels --Gym & Wellness for adults only-- is a four-star hotel in Brussels, Belgium. Located at 25 Boulevard du Souverain, this adults-only retreat sits about 4.7mi from the city center, offering easy access to the capital while maintaining a wellness-forward vibe.

Highlights include Spa/Wellness packages, an indoor swimming pool (free), an outdoor swimming pool (free), a restaurant, and free Wifi. Fitness enthusiasts will find a free fitness center and the option of a personal trainer. Additional conveniences include a 24-hour front desk, non-smoking rooms, wheelchair accessibility, air conditioning, soundproof rooms, a bathtub with free toiletries, plus a terrace, garden, elevator, and beach umbrellas and chairs for sunny days.

With 4,615 reviews, guests frequently praise the wellness facilities and the thoughtful details that make stays comfortable and easy.

Wellness stays front and center, inviting travelers to tailor a day of relaxation with Spa/Wellness packages. Both the indoor and outdoor pools are heated and open year-round, offering a refreshing dip in any season. Complimentary Wi-Fi keeps connections seamless between spa sessions and workouts, while a free fitness center and the option of a personal trainer help shape a personalized routine. A 24-hour front desk provides friendly, around-the-clock assistance, and rooms enjoy air conditioning and soundproofing for peaceful nights.

On-site dining adds a convenient flavor to every stay. Joule, a day eatery and coffee spot, serves local, international, and European cuisines in a modern setting. Timber is adults-only with a modern ambiance, offering Australian and French influences with grill and BBQ highlights. For outdoor moments, terrace and garden spaces provide relaxed spots to linger and soak in the atmosphere.

Practical touches round out the experience, including an elevator and beach umbrellas and chairs for sunlit days by the outdoor spaces. Non-smoking rooms contribute to a comfortable, smoke-free environment throughout the stay. With these thoughtful details and a four-star standard, this Brussels retreat offers a lively wellness-forward base for exploring the city while enjoying easy, enjoyable downtime.

Closest airports

Brussels Airport

7.3mi

Brussels South Charleroi Airport

23.8mi

Antwerp International Airport

26.8mi

Lille Airport

60mi

Eindhoven Airport

60.8mi

Most popular amenities

Spa/Wellness packages

Restaurant

Indoor swimming pool

Outdoor swimming pool

Free wifi

Room service

Fitness center

Turkish/Steam Bath

Steam room

Free spa

Sauna

Air conditioning

Bar

Sun deck

Terrace

Soundproof rooms

Personal trainer

24-hour front desk

Non-smoking rooms

Wheelchair accessible

Beach umbrellas

Beach chairs/Loungers

Kitchenware

Kitchenette

Elevator

Garden

Upper floors accessible by elevator

Free toiletries

View

Soundproof

Bathtub

Rooms

40 in Mix Brussels --Gym & Wellness for adults only--

Show 6 photos

Room - 2 Twin

2 Twin Beds

1 Queen Size Bed

430 sqft

Private Bathroom

View

Flat-screen TV

Refrigerator

x4

+

x3

More details

Suite 60 Panorama in Mix Brussels --Gym & Wellness for adults only--

Show 6 photos

Suite, Panoramic View, Single Use

1 Queen Size Bed

2 Sofa Beds

645 sqft

Private Bathroom

Kitchenette

Bathtub

View

x4

+

x3

More details

Suite 60 Panorama in Mix Brussels --Gym & Wellness for adults only--

Show 6 photos

Suite, Panoramic View

2 Sofa Beds

1 Queen Size Bed

645 sqft

Private Bathroom

Kitchenette

Bathtub

View

+

More details

30 in Mix Brussels --Gym & Wellness for adults only--

Show 5 photos

Room - 1 Twin

1 Twin Bed

1 Queen Size Bed

300 sqft

Private Bathroom

View

Flat-screen TV

Refrigerator

x3

+

More details

Suite 50 Grand Vista in Mix Brussels --Gym & Wellness for adults only--

Show 2 photos

Suite Grand Vista

1 Queen Size Bed

1 Sofa Bed

540 sqft

Private Bathroom

Kitchenette

Bathtub

View

x4

+

x3

More details

40 Panorama in Mix Brussels --Gym & Wellness for adults only--

Show 2 photos

Room - 2 Twin, Panoramic View

2 Twin Beds

1 Queen Size Bed

430 sqft

Private Bathroom

Bathtub

View

Flat-screen TV

x4

+

x3

More details

Suite 50 Grand Vista in Mix Brussels --Gym & Wellness for adults only--

Show 2 photos

Suite Grand Vista, Single Use

1 Sofa Bed

1 Queen Size Bed

540 sqft

Private Bathroom

Kitchenette

Bathtub

View

x4

+

x3

More details

20 in Mix Brussels --Gym & Wellness for adults only--

Room, Single Use

1 Queen Size Bed

215 sqft

Private Bathroom

View

Flat-screen TV

Refrigerator

+

More details

20 in Mix Brussels --Gym & Wellness for adults only--

Standard Room

1 Queen Size Bed

215 sqft

Private Bathroom

View

Flat-screen TV

Refrigerator

+

More details

Show 11 photos

Suite Grand

Kitchenette

Microwave

Flat-screen TV

Refrigerator

+

More details

Show 9 photos

Room With Panoramic View

Flat-screen TV

Refrigerator

+

More details

Show 8 photos

Superior

Kitchenette

Microwave

Flat-screen TV

Refrigerator

+

More details

Guest reviews

8.4

5,307 reviews

Categories of assessments

Cleanliness

Comfort

Location

Facilities

Staff

Value for money

WiFi quality

Featured reviews:

🇬🇧

Caroline

10

August 2024

Stylish, comfortable and close to the forest

None of the pools are open to children. They're very transparent about this when you book but it's still a shame when it's otherwise so well configured for families

🇬🇧

Naomi

9.1

October 2023

We had a really nice stay at MIX, the overall interior and facilities were fantastic and modern. The food hall downstairs was great, we really enjoyed the variety of that they had. The spa and pool was great and clean. The late checkout was a good option too. The hotel wasn't too far from the main city (25 mins drive).

As this is a wellness hotel, I would have loved if the room had robes and slippers. We did find the breakfast nice, however I do think it was a little overpriced. I understand the hotel is still quite new so there will probably be some additions as time goes on, but it would be nice if there were more activities for guests or even some light entertainment for the evening.

🇩🇪

Pierre

8.2

August 2024

This was our second stay the The Mix and we once again had a great time! Comfortable and spacious rooms (we asked for a room away from the busy street, and it was very quiet), tastefully decorated, access to a fantastic gym and spa. The Fox food court downstairs has a wide variety of delicious food (we had tasty poke bowls and amazing tacos) and drinks. Located in an upmarket and leafy suburb of Brussels, right opposite a tram line and next to a number of parks.

In general staff are not as helpful and friendly as they could be. And the arrangement at breakfast where you are given an empty coffee mug on arrival is just strange for a hotel (could perhaps have been sensible for a school canteen). Breakfast has potential, but the layout of the breakfast area leads to crowding and long waiting times. And you really should be able to get two eggs sunny side up when you have paid around €25 for breakfast (the “scrambled eggs” have a strange consistency and did not taste like eggs at all - getting eggs sunny side up was a mission).

🇿🇦

Piérre

9.1

February 2025

We are regular visitors by now. We always enjoy the quiet, leafy neighbourhood. And the cool architecture, as well as the tasteful decor. The spa is fantastic, with a variety of saunas. Check out the Joule cafe - delicious coffee, fresh cakes and delicious food.

We avoid the buffet breakfast and rather have a coffee at Joule. Staff could be better trained and friendlier, especially at the gym.

🇬🇧

Simranjeet

9.1

July 2025

It’s was AMAZING! It’s so pretty and stunning! I loved it!! Definitely worth it!

I really really REALLY hate how the kids are not allowed it the swimming pool!! Please improve that!! Well everything else was AMAZING!!

🇸🇮

Gal

10

February 2024

I loved this place! I almost didn’t book it because of the reviews - luckily I nevertheless did. The architecture is astonishing, every detail well thought of. If you like design, you need to see this place! You need to understand that it’s a big building, the hotel is just one small bit of their offer - so not everything is centred around hotel guests. Gym and wellness are primarily open to members, locals. Naturally this makes it more busy than other hotel gyms and spa - but also much more authentic and genuine. I had a great workout and swim afterwards (outside pool was empty). Particularly the spa should be perceived more as “after workout relax” than silent, mindful experience. Tourism is often criticised as a bubble, disconnected from real life, and here you have an opportunity to defy that. Location wise - the tram station is right in front of it, which makes it very convenient.

🇿🇦

Piérre

8.2

April 2025

Located in one of the most beautiful neighbourhoods in Brussels with numerous parks; situated in a gorgeous building dating back to the beginning of the 1970s; housing a fantastic spa and gym; the food court downstairs offers a wide variety of tasty food and drink; the Joule coffee shop has delicious fresh meals and awesome coffee (try the avocado toast and the carrot cake!); the rooms are spacious and tastefully decorated; the saunas, steam bath and salt room are magnificent!

More and more people are using the lobby of the hotel and the cafe as a remote work location - it becomes crowded and noisy; the entrance to the hotel is rather neglected.

🇧🇪

Agustina

8.2

August 2023

The room was very beautiful and comfortable. The spa facilities and gym were nice. The breakfast was super good, and the staf was friendly. The location was easy to access by public transport. The food court was a very nice thing to enjoy as well.

The wellness is still under construction, the outdoor pool was closed and the jacuzzi was not opened yet. Since they are still working, sometimes you could hear the drilling on the wall. After 4 pm the spa was very crouded because people living in brussels go for the gym and spa. In the mornings there was always a class in the pool with very loud and anoying music, not relaxing at all. It feels like this hotel is more for people that go for work and want to mix it with relaxation that just for people on holidays. Its also good if you live in Brussels and want to go to workout, but its not recommended as a wellness.

🇳🇱

Daniëlla

9.1

January 2025

I literally have nothing to complain about. I wanted to surprise my boyfriend and they told me they don’t have decoration services but they could allow early check so I can do it myself. From the moment I arrived until the moment I left everyone was very nice and helpful. Breakfast was good and the gym and spa area amazing!

The only thing I did not like was the parking facility. It was €22 per day, which is reasonable however this price only applies if you stay parked there the entire day. If you decide to park in the garage and go in and out, you will have to pay each time you decide to go out. So then the €22 doesn’t apply

🇬🇧

A

10

July 2025

had a wonderful stay at this spacious hotel with my family. Although our little one couldn't use the pool, they thoroughly enjoyed the food court and breakfast options. The hotel is a perfect destination for wellness, spa, and retreat sessions—truly relaxing and rejuvenating. Having traveled extensively across Europe, I can confidently say this is one of the best hotels I’ve stayed in. I will certainly be returning!

One downside, however, was that the toilet room didn’t have a hand-washing facility. You had to walk through the room to the main bathroom to wash your hands, which was a bit inconvenient.

Points of Interest Around Mix Brussels --Gym & Wellness for adults only--

Attractions

Coudenberg (Former Palace of Brussels)

4mi

MOOF Museum

4.3mi

Royal Galleries of Saint Hubert (Les Galeries St-Hubert)

4.4mi

Belgian Comic Strip Center

4.4mi

Brussels City Museum (Musée de la Ville de Bruxelles)

4.4mi

Brussels Beer Project

5.1mi

Train World

5.6mi

Stella Artois Brewery

13.7mi

Het Zuid

28.2mi

ModeMuseum (MoMu)

28.7mi

Rubens House (Rubenshuis)

28.7mi

Plantin-Moretus Museum

28.8mi

Grand Market Place (Grote Markt van Antwerpen)

29mi

Butcher's Hall (Vleeshuis)

29.1mi

Museum aan de Stroom (MAS)

29.5mi

Restaurants

Joule - Day eatery and coffee

Cuisines

  • Local
  • International
  • European

Ambiances

  • Modern

Timber - Adults only

Cuisines

  • Australian
  • French
  • GrillBbq

Ambiances

  • Modern

Pools

Location

  • Indoor

Features

  • Heated

Age restrictions

  • All ages

Availability

  • All season

Location

  • Outdoor

Features

  • Heated

Age restrictions

  • All ages

Availability

  • All season

Amenities of Mix Brussels --Gym & Wellness for adults only--

Spa/Wellness packages

Restaurant

Indoor swimming pool

Outdoor swimming pool

Free wifi

Room service

Fitness center

Turkish/Steam Bath

Steam room

Free spa

Sauna

Air conditioning

Bar

Sun deck

Terrace

Soundproof rooms

Personal trainer

24-hour front desk

Non-smoking rooms

Wheelchair accessible

Beach umbrellas

Beach chairs/Loungers

Kitchenware

Kitchenette

Elevator

Garden

Upper floors accessible by elevator

Free toiletries

View

Soundproof

Bathtub

Stay rules - Mix Brussels --Gym & Wellness for adults only--

  • Check-in / Check-out

  • Pets

  • Internet

  • Age restrictions

  • Curfew

  • Parking

  • Children and beds

  • Cards accepted at this property