# Mix Brussels — Full knowledge file > All-in-one hospitality concept in south Brussels, bringing hotel, gym & wellness, restaurants, coworking library and events together in the former Royale Belge building. Address: Boulevard du Souverain 25, 1170 Brussels, Belgium Phone: +32 2 300 02 00 Email: hello@mix.brussels · members@mix.brussels (Gym members) Transport: Tram Tenreuken (3 min walk) · Metro Herrmann-Debroux (10 min walk) · Bus STIB 17 & 95 Fauconerie (6 min walk) · 20 min by car from Brussels Zaventem Airport Setting: 8-hectare park at the edge of the Sonian Forest Architecture: Original building by René Stapels and Pierre Dufau, reimagined by DDS+, Lionel Jadot and Zaventem Ateliers --- ## 1. Home — https://mix.brussels/ Mix Brussels is a unique all-in-one hospitality concept in Belgium, where hotel, restaurant, library, gym, events and bar come together. Situated in the vibrant south Brussels district, Mix spans over six floors of the esteemed Royale Belge building, with curated architecture and 360° terrace views of the Sonian Forest. The venue brings together: - 4-star hotel with 180 rooms and suites; every stay includes access to the Gym & Wellness. - Long-stay studios fusing apartment living and hotel services. - A flex-desk coworking library with Gym & Wellness access included. - A 5000m²+ gym and wellness area, group classes, pools and recovery facilities. - Three restaurants under one iconic roof for breakfast, lunch, cocktails and late-night dining, with locally sourced ingredients. - 15 event spaces for corporate presentations, dinners, networking, parties and concerts, with capacity up to 300 guests. The Royale Belge building was designed by functionalists René Stapels and Pierre Dufau, and has been thoughtfully renovated by DDS+, Lionel Jadot and Zaventem Ateliers, playing with volume, materials and light. Mix is what you make of it — for swimmers-before-coffee and dancers-until-dawn, for locals, visitors and habitués, for those in suits and those in slippers and robes. --- ## 2. Hotel — https://mix.brussels/hotel/ Mix Hotel is a 4-star hotel with 180 bedrooms, nestled in a lush green landscape. Every stay grants access to the Gym & Wellness facilities (up to 5500m²), including the indoor and outdoor 25m pools, sauna, hammam, banya, ice cabin and salt cave. Group classes remain reserved for members of the club. **Accommodation types:** - Rooms — sleek and stylish retreats for contemporary travelers. - Studios — designed to accommodate one, two or up to four guests. - Apartments — extended comfort for a home away from home, with kitchenette and living room. **All under one roof:** - Romeo cocktail bar · Joule healthy eatery · Timber restaurant · Fox food market - Open gym, wellness and massages - Forest and green setting, covered parking, city and electric bikes **Packages include Pampering (from €144/pers):** overnight stay, Gym & Wellness access during the stay, and a 50-minute massage per guest in the Health & Performance center (duo massage possible upon availability). Terms: free cancellation until 24h before arrival; after that, full charge with no refund; 100% of the total charged the day before arrival; not combinable with other offers; prices per person based on double occupancy. --- ## 3. Hotel Rooms & Studios — https://mix.brussels/hotel-rooms-studio/ **Room Twenty** — simple and cozy double room, 19–22m², perfect for couples or solo travelers. Large single window, shower, small working desk, wardrobe, 43" TV. Up to 2 guests. **Room Thirty** — 26–28m², for couples, solo travelers, small families or friends. Bench along the large window, which also serves as a bed for a third person. Open marble bathroom with shower, working desk and wardrobe. 32" or 43" TV. Up to 3 guests. **Room Forty & Room Forty Panorama** — 40m² of floor area. Certain rooms feature both a shower and a bathtub. Larger window layout and panoramic views for Panorama units. **Studios (62m²)** — most spacious option in the building. Living area with kitchen, dining table, and a sitting area with sofa and two benches that double as additional beds. Four large windows, 43" TV in the bedroom and 32" TV in the living room. Separate bedroom for privacy. Enclosed bathroom with shower and bathtub. Up to 4 guests. --- ## 4. Long-Stay Apartments — https://mix.brussels/hotel-apartments/ Long-stay apartments combine the independence of a private space with the comfort of premium hotel-style services. Available for monthly rent, designed for stays of a month or more. **Included amenities:** equipped kitchen, separated bedroom, separated bathroom, air-conditioner, office space, living room, two flat-screen TVs, storage, housekeeping service, access to sport amenities. **Bedroom comfort:** two types of pillows (aerolatex and exclusive), large window with motorized blinds, King-size bed (180×200), parquet floor, 32" television. **Bathroom:** rain shower with thermostatic mixer, bath, hair dryer, shower gel and shampoo amenities. --- ## 5. Gym & Wellness — https://mix.brussels/gym-wellness/ 5500m² adult-only club across three floors. Unparalleled group classes, an open gym equipped with Technogym, wellness facilities and pools — all in a green, artist-curated environment at the former Royale Belge. **Workouts & classes:** - 7 dedicated studios with 350+ weekly classes - Immersive studios: Burn (HIIT), Movement (dance, LesMills), Cycling - Two 25m pools (indoor and outdoor), open all year, with daily swim classes, technique practice and aquagym sessions - Boutique fitness studios and open gym with Technogym equipment - Tatamis, Reformer, Boxing, CrossFit, Crosstraining and Bike Center **Wellness area:** banya, sauna, hammam, iced cabin, salt cave, indoor and outdoor pools, jacuzzi with movie screen, and a bar area serving morning lemonades and evening drinks. Towels, shower amenities and hair dryers are provided. **Community:** weekly events, DJ sets at the pool bar, outdoor social rides and poolside activities. Adult-only (18+), no children allowed in any Gym & Wellness facility. **Opening hours:** 6:30am–10:30pm on weekdays; 8am–10pm on weekends and public holidays. Last entry: 9:45pm weekdays, 9:15pm weekends. **Members perks:** free 3-hour access to parking, complimentary 1-hour intake session, complimentary towel per visit. --- ## 6. Timber (Restaurant) — https://mix.brussels/timber/ Timber is the *brasserie fine* of Mix, designed by artist Lionel Jadot. Daring menu reimagining Belgian classics, highlighting iconic Belgian flavours and supporting small producers. **Hours:** Lunch Tuesday–Friday, 12pm–2pm · Dinner Tuesday–Saturday, 7pm–9pm. **Group bookings:** semi-privatisation for 10–30 people; full privatisation for up to 90 people on closed days. **Special events:** occasional guest-chef takeovers (e.g. David-Alexandre Bruno, Young Chef of the Year 2026 and founder of Quartz). --- ## 7. Romeo (Cocktail Bar) — https://mix.brussels/romeo/ Romeo is a cocktail bar and social venue in 70s-inspired décor, with an 800m² south-facing rooftop terrace and loungers. **Hours:** Open every day from 5pm (no reservation). Breakfast daily 7am–10:30am (continental hot and cold buffet, €28). Sunday brunch from 11:30am (mix of sweet and savoury dishes; tea, coffee and juice included). **Music & events:** - Thursday, Friday, Saturday — vinyls, DJ sets, electronic music, resident DJ - Wednesday specials (details on Instagram) - Friday "Sip & Slice" 6–8pm — slice of pizza with every cocktail during DJ night --- ## 8. Joule (All-Day Eatery) — https://mix.brussels/joule/ Joule is the all-day eatery of Mix, adjacent to the Gym & Wellness, welcoming everyone including non-members. More than a café: breakfast, lunch, specialty coffee, shakes and sportive supplements in a creative atmosphere. **Hours:** Open every day 8am–6pm. Kitchen 11am–3pm. No reservation needed. **Private events:** After 6pm, once the restaurant is closed, Joule can be privatised for up to 80 guests — healthy walking dinners, BBQ experiences, retreats, afterworks, meetups or seated dinners. Located on the 2nd floor, Boulevard du Souverain 25, 1170 Brussels. --- ## 9. Events & Seminars — https://mix.brussels/events-seminars/ All-in-one meeting, seminars and events destination. 15 configurable spaces, up to 300 guests. **Formats:** - Residential seminars — up to 180 rooms, for training, seminars and multi-day offsite events - Events & meeting rooms — up to 300 people for meetings, cocktails, workshops, conferences - Teambuildings — up to 150 people, team cohesion sessions or sport challenges - Afterworks — up to 200 people, Italian food to share, music and cocktails - Walking dinners — up to 80 people, mobile dining experience **Signature package — 24h Offsite (from €299/pers):** overnight, meals, meeting room, and Gym & Wellness access included. Contact: booking a meeting room for up to 10 people is self-serve; larger events on quote. --- ## 10. FAQ (Gym & Wellness) — https://mix.brussels/en-faq/ Full FAQ dedicated to Gym & Wellness. Excerpt of key questions: **Location & access.** Gym & Wellness is located on the 2nd floor of Mix, Boulevard du Souverain 25, 1170 Watermael-Boitsfort. Members get free parking at Parking C (Tenreuken) subject to availability, max 3 hours, after registering their plate at the front desk. Non-members can use paid Indigo Parking B, or blue-disc streets nearby. **Ages.** Adult-only facility (18+). Kids are not allowed in the open gym, wellness, studios or pools. **Membership.** Registration online. Billing is monthly; quarterly invoicing is available. Members receive a badge that unlocks access to Mix and the lockers, plus the Mix Brussels mobile app. Cancellation requires 3 months' written notice to `members@mix.brussels`. First payment is prorated. **Memberships types.** Club (includes coworking library + 1 guest pass/month), Health, Young, Light. VAT 6% on Health/Young/Light; 21% on Club (because it includes coworking, beyond strict gym use). **Trials / day passes for non-members.** Not available. Alternatives: book a hotel stay (gym & wellness access included, no group classes), book a massage + day pass at €50 (weekdays 9am–5:30pm, no group classes), or be invited by a member (guest pass €60, member must accompany). **Guest passes.** Club: 1 free guest pass/month. Others: purchase at €60. Extra passes: loyalty after 1 and 4 months, birthday, referral. **Facilities.** 5500m² across three floors. 350+ weekly group classes in 8 studios. Open gym with Technogym. CrossFit and Stride boxing studios. Recovery and stretching area. Wellness: sauna, hammam, ice bath, salt cave. 25m indoor and outdoor pools. Uperform Health & Performance center. **Rules.** Adult-only. Mandatory to change in the locker rooms. No shoes in wellness area. Towel required in sauna and on loungers. Lockers limited to 5 hours. No pictures of others. No food, drinks or glass. No personal essential oils in wellness areas. **Opening hours.** 6:30am–10:30pm weekdays; 8am–10pm weekends and public holidays. Last entry 9:45pm / 9:15pm. **Group classes.** 50+ sessions/day. Members-only (no hotel guests except paid morning yoga at 8:10am, €5). Booking via app. Light/Young/Health: up to 5 days in advance; Club: 7 days. Cancellation required at least 3 hours in advance; 3 penalties/month = 2-week suspension (reset monthly). Waiting list available. **Health & Performance by Uperform.** Physiotherapy, osteopathy, nutrition coaching, psychology, massage, personal training, sleep coaching. Available to members and non-members via booking. Personal training sessions sold separately. --- ## Brands & concepts under Mix - **Timber** — brasserie fine (restaurant) · Lionel Jadot - **Romeo** — cocktail bar + rooftop terrace 800m² - **Joule** — all-day eatery + healthy food - **Fox food market** — food market on site - **Uperform** — Health & Performance center (physio, osteo, personal training) - **Library** — coworking flex-desk - **Gym & Wellness** — 5500m² adult-only club - **Mix Hotel** — 4-star, 180 rooms ## Key numbers - 6 floors · 8-hectare park setting - 180 hotel rooms · room sizes 19–62m² - 5500m² gym & wellness - 350+ weekly group classes · 8 studios - 2 pools (25m indoor + outdoor) - 15 event spaces · up to 300 guests - 24h offsite package from €299/pers - Phone +32 2 300 02 00