Sienna 75, Warsaw · 4.3 ★ (12 reviews)
CLUSTER Warsaw is a boutique coworking space located at Sienna 75 in the heart of Warsaw's business district, bridging the Wola and Srodmiescie neighborhoods. Housed inside the Sienna Center, this 1,800 sqm workspace offers 52 private offices, roughly 230 workstations, hot desks, dedicated desks, and fully equipped meeting rooms. The space is designed with a warm, personal touch that sets it apart from corporate office towers -- think stylish interiors, a rooftop terrace with views of Varso Tower, and a community kitchen where conversations happen naturally. CLUSTER is a Polish operator with over 10 years in the market and additional locations in Krakow and Katowice. The team prides itself on knowing members by name, not by ticket number. With a 4.8/5 member satisfaction rating and a 92% renewal rate, the space attracts freelancers, startups, and growing teams of 1 to 20 people who value atmosphere and flexibility over square footage. Flexible lease terms, no long-term commitments, and the ability to scale up or down make CLUSTER a practical choice for budget-conscious professionals.
Sienna 75, 00-833, Warsaw, Poland
CLUSTER Warsaw sits on Sienna street in the Wola district, steps from the Rondo Daszynskiego business hub. The area blends modern office towers with local character. Green Caffe Nero is next door for coffee, while BISTRO 75 and Miss Kimchi serve lunch within a two-minute walk. Fitness Klub ZDROFIT and Polka Pilates are under 500 meters away for a midday workout. The Norblin Factory complex with its restaurants, cinema, and shops is a short stroll south. Several tram and bus stops along Sienna connect the space to the rest of the city, and Rondo Daszynskiego metro station is roughly 10 minutes on foot.
A hot desk at CLUSTER Warsaw starts at 85 PLN net per day (approximately EUR 20). Monthly hot-desk access costs 850 PLN net (approximately EUR 196). A 10-entry pass is available for 550 PLN net. All prices are subject to 23% VAT.
Review summary
Members consistently praise CLUSTER Warsaw for its striking modern design, abundant natural light, and a terrace offering panoramic views of the Warsaw skyline — frequently described as a highlight of the space. The central location near Rondo ONZ is valued for easy access to clients and the city. Facilities include conference rooms, high-speed internet, and a fully equipped kitchen, with staff described as helpful and genuinely friendly. The atmosphere is noted as conducive to networking among like-minded professionals. Some reviewers raise concerns about the privacy offered by partition walls and consider the pricing steep for smaller offices.
Members most consistently praise Atmosphere, Light & space, and Location. The most-raised point to know about is Staff & service.
Consistently praised
Worth knowing
“Probably the best office I've ever been to”
See options & request a tourРуслан М
Dec 2025
Uber's verification process is terrible; you can't book a ride through the website. And the office staff simply refuses to talk. Book through the website. It's absolutely disgusting. And this whole office lives off the commission they get from taxi drivers.
Adama
Jul 2025
Vistited the place and their offices have no privacy and are made with plasterboard walls. For a small room they charge 600€ . When commented, staff turned unrespectfull like being in high school. Not a serious place.
Yurii
Jul 2025
The hotdesk area is a bit small, but the place overall is cozy, prices are affordable, and it has great views from terrace.
Wiktor Banaszak
Jun 2025
Location and service in the office 10/10 plus the view from the terrace is indescribable!
Robert Krajewski
Nov 2024
Cluster is ideal place for our company. The location is fantastic, making it easy to connect with clients and navigate the city. The space itself is beautifully designed, with a modern aesthetic that makes coming to work enjoyable. I appreciate the practical infrastructure on common areas. Cluster combines everything we need in one place.
Anna Suwalska
Nov 2024
As a small but growing agency, we couldn’t have found a better coworking space than Cluster. The atmosphere here is laid-back yet inspiring, and the people around are not only professional but also genuinely friendly and supportive. The interior design is modern and stylish, making it a pleasure to work here every day. We especially love the terrace, which is a perfect spot to take a break and refresh our minds. Plus, the location is unbeatable, offering easy access to everything we need. Cluster has truly been the perfect fit for us!
