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Review Summary


  • Ultra-modern decor with unique furnishings and abstract art
  • Apartment-style rooms with kitchenettes and modern bathrooms
  • Spacious two-floor rooms have have lofted ceilings and city views
  • Sexy lobby bar and lounge area
  • Freebies include breakfast buffet, Wi-Fi, and daily newspapers
  • Business-oriented location near government buildings


  • Kitchenettes are lightly stocked and missing some basics
  • Stairs to the sleeping area are rough and uncomfortable
  • Area is not ideal for leisure travelers, and can be dicey at night

Bottom Line

The Room Mate Carlos (part of the international Room Mate chain) is an upscale, 57-room hotel located among the skyscrapers and European-style buildings of the Buenos Aires Montserrat neighborhood. While the hotel's facade has a classic style, the inside transports guests to an ultra-modern, almost dreamy place: The lobby’s shades of green and quirky design create the feel of an underwater seaweed setting, and the breakfast area's decor is a bold abstract mix of patterns and sunburst light fixtures. Formerly apartments, the rooms are extremely spacious with high ceilings and two levels -- a lounge area, dining section, and small kitchenette on one floor, and sleeping quarters up a short staircase. The lofts are decorated in the same way as the rest of the hotel: clean, futuristic, and full of odd shapes and popping colors. Room Mate Carlos is located to the east of business-oriented Congreso, near government buildings.

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Located in the Montserrat neighborhood, about 15 minutes south of downtown

Map of Room Mate Carlos

The Montserrat neighborhood in Buenos Aires is situated on the east side of Congreso, an area featuring some of the more important government buildings including City Hall, Casa Rosada, and the Ministry of Defense. Because of this, the hotel does attract a lot of business travelers. Leisure travelers may appreciate the theaters, restaurants, and bars within walking distance to the hotel in the San Telmo neighborhood, however. But both Congreso and San Telmo can be gritty in spots, and particularly dicey at night; this might not be the best area for visitors unfamiliar with the city.

  • 34-minute drive to Buenos Aires Ministro Pistarini International Airport
  • 11-minute walk to Plaza de Mayo
  • 12-minute walk to El Obelisco
  • 15-minute walk to Casa Rosada
  • 5-minute drive to Teatro Colon
  • 7-minute drive to Microcentro
  • 8-minute drive to Calle Florida
  • 13-minute drive to Puerto Madero

Rooms and Rates

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Key Features
Hotel Services
Dry Cleaning
Free Breakfast
Rental Car Service Desk Onsite
Family Services
Kids Allowed
Things to Do
Business Center
Room Features
Air Conditioner
Full Kitchen
Mini Bar (with liquor)
Separate Bedroom / Living Room Space
Av. 9 de Julio esq. Alsina 1112, Buenos Aires 1088, Argentina
Phone 54 (115) 300-0800
Room Types
  • Loft Deluxe

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