With a stay at Apto. de diseño Puerta del sol 3 in Madrid (Centro), you'll be minutes from Plaza del Carmen and Plaza Mayor.
There's a private balcony or patio. A kitchen is outfitted with a full-sized refrigerator/freezer, an oven, and a stovetop. Complimentary wireless Internet access keeps you connected, and a flat-screen television is provided for your entertainment. The bathroom has a shower and a hair dryer. Conveniences include a microwave and a coffee/tea maker, and housekeeping is provided daily.