Edificio del Seguro Médico, Havana
The Edificio del Seguro Médico is a commercial building in El Vedado, Havana. Built between 1955 and 1958, it was designed as a mixed use building for apartments and offices for the headquarters of the National Medical Insurance Company by Antonio Quintana Simonetti. In regards to Edificio del Seguro Médico an architect from the Universidad de Oriente, Santiago de Cuba, Carlos Alberto Odio Soto made the following observation: Today the building houses the Cuban Ministry of Public Health and the Prensa Latina Agency. The only complete package of information about the building is the slides  that were presented for the architectural contest, collected in the magazine 'Arquitectura', nº 269, of 1955 published by the College of Architects of Havana. History. The project arose as a result of a public architectural competition held in 1955 for the new headquarters of the Cuban Colegio de Médicos (National Medical Association) and the offices of the Medical Insurance Company. Given the high cost of the site, the complexity of the initial project was increased by the need to add rental income from apartments that would help to make the building profitable. Antonio Quintana's proposal was the winner since  it managed to solve the complexity of the program with two volumes: a five-story box containing administrative offices, an auditorium, and lobbies, and an eighteen-story modernist slab with its own separate entrance lobby. Quintana established a visual dialogue between the two geometries and generated new guidelines for the new emerging modernist, mixed-use typologies in the city. The Seguro Medico was a private company, they were the landlord and owner of the residential tower and thus subject to the new property redistribution instituted by the Castro government. Early in the new revolutionary government, guided by the principles that : 1. housing is a right, not a commodity, 2. housing should be equitable, and 3. the government is the primary decision-maker, "Fidel Castro sought to release the grip landlords held on Cuban properties with a 1960 urban-reform law that eliminated multiple ownership, gave renters a chance to buy their homes at low cost and made the state responsible for providing housing." Thus, all private property was abolished and the government forcefully became the new owner of the Seguro Medico building. Program. The first mixed-use building in Havana was the Radiocentro CMQ Building, also on La Rampa (Calle  23). The modernist Edificio del Seguro Médico is one of the earliest mixed-use buildings (commercial/residential) in Havana. Similar to the Lever House in Manhattan, Antonio Quintana Simonetti (1919–1943) sets up a relationship of two volumes of dissimilar proportion: a box at the lower level containing the Seguro Médico offices, and an eighteen-story residential block. Similar to the FOCSA Building's podium used only for recreation, the residences are located over the roof of the Seguro Medico offices; a large plane made into a children's playground (garden) as shown in the Quintana sketch-drawing for that area . Because the building must accommodate a dual program, there is a total separation by way of two scales, two structural modules, and two entrances on two different streets. Architecture. Residential module. The residential block has an architectural module of by . Three modules are expressed on the north elevation of the office block by the 9.40-meter dimension of the bearing walls. The outboard balconies are each of a different color and alternate position on every floor. The lower volume occupied today by the Ministry of Public Health. The width of the rooms is further subdivided into three sections of and  this module determines the width of doors, windows, and passages between rooms within the apartment. The wooden windows have two sets of nine movable slats that can be independently controlled to modulate the natural light in the room, they can be completely closed to make the room totally dark, even in bright days. The pattern of the windows and door and the bearing walls (9.40 meters apart) are expressed on the Calle N elevation. Balconies, walls and floors. The balconies have a six-inch terrazzo baseboard and two incandescent lights located in the ceiling of the balcony above. The front  railing of the outboard balconies are the upturned concrete floor slab, the two pre-fab side railings are metal. Originally the floors in the residential tower were of black terrazzo. There are four structural walls of poured in place reinforced concrete. The two center walls are the shear panels of the tower. The height of the apartment ceiling is eleven concrete blocks high plus a terrazzo base (). They divide the apartments and rooms and are unpainted, set in common, gray mortar, the wall sits on top of a black terrazzo baseboard that matches the floors. Several of the doors in  the apartment as the bathroom doors, for instance, have fixed louvers between the space from the top of the door to the ceiling, some of the doors have a fixed panel of glass over them. In some of the bathrooms, the terrazzo floor is raised by a step. In both sides of the rear elevation on each floor, there is a 12.65-meter long wall that is subdivided down the center it is divided horizontally into three parts: 1-Two prefab concrete panels of 6.32 m or 9.48 m in length depending on the layout of the floor. 2- Located  under the kitchen cabinets, a strip window of equal length and in the middle of the two concrete panels. The window has wooden "persianas" (venetian blinds) that were widely used in modern and traditional residential buildings in Havana such as the FOCSA Building and the López Serrano Building. The other wall is the exterior wall of the public corridor, made of floor to ceiling concrete blocks and set in such a way that allows for 8" X 8" openings throughout so that the exterior wall of the semi-public corridor is partially open to the elements. The concrete block wall  is either 6.32 or 3.17 meters long and alternates with the plank wall in an abstract pattern. The wall enclosing the vestibule in front of the elevators is made of an aluminum frame for glass panel inserts with operable windows. Ventilation and light. The north wall is designed to regulate the view, breezes from the north and the natural light. The entire wall is subdivided according to the module and it is composed of louvered doors and windows that can be made to open completely so that the wall is de-materialized, or, its opposite, be made to change its  character to the point where no air or light can enter the rooms. On the rear elevation, two different wall surface designs form an abstract pattern. One, accommodates a horizontal operable window in the middle of the wall, (similar to the FOCSA Building), which is made up of two prefab concrete slabs. The other design makes the wall partially porous by the placement of the cmu to allow for views, natural light and ventilation. Murals. The building has two murals, one a black and white tesserae mural by Wifredo Lam entitled "Abstracción" which is located on the main entrance-commercial  vestibule on Calle La Rampa; the other is in the residential lobby on Calle N and titled "Boomerang," by Mariano Rodriguez. Prize. The Edificio del Seguro Médico was awarded First Prize at the Architecture Competition in 1954 and a Gold Medal by the School of Architects in Havana in 1959. Structure. The residential block is supported by four bearing walls 9.40 meters apart, expressed on the office block by vertical glass mullions (4 red lines). These bearing walls allow for curtain wall construction: a non-loadbearing facade. The structural module of 9.40 meters by 10.30 meters. The 9.40-meter dimension  between walls is further subdivided into three modules of 3.13 meters ( 10'-3"), and this is the architectural dimension seen previously of all the bedrooms and living rooms. There are eleven 3.15 meter subdivisions in total which make up the one-bedroom (6.30 meters) and two bedrooms (9.40 meters) apartments. The outermost 3.13 meters of slab at either end and on each floor, shown hatched on the structural plan diagram, is cantilevered and that is how Quintana achieves the thin walls at the ends of the apartment block (on the NE elevation), these walls only carry their own weight similar to  the South and North walls of the United Nations Secretariat Building. They are the same thickness as the floor slabs. All outboard balconies are 5.34 meters long, all non-service rooms have access to balconies. The two basic floor plans of apartments alternate between the eighth floor and the twenty-third floor. The apartments on the seventh floor (the 1,449 sq m roof of the office block) had private gardens; the end wall of the residential block is missing and the residential block appears to float. (N.E. elevation). Unfortunately, the tenants of this apartment have added rooms so this subtle  modernist detail has been lost. These three units and their private gardens, overlooking Calle 23, were confiscated early in 1960 and the roof was turned into a children's playground; the playground was eventually closed. Office module. The 34.50 × 42 meters open structure floor plan (1,449 sq m) of the offices below the residential block (ground, second-floor plans) has a module of columns that is 9.4 m × 8.4 m on center and accommodates stairs of various dimensions, elevators, ramps, toilets, and an auditorium. It has a modernist reading as these appear as 'objects in space'. The 9.40 -meter distance of the bearing walls of the residential slab above is positioned over the office block in such a way that the two innermost structural walls are carried down to the foundation of the building while the two outermost walls are supported by two columns each (below the sixth floor) as can be seen on the ground-floor and second-floor plans. Parti pris. The parti of the site's area distribution of the Edificio del Seguro Médico is similar to that of the FOCSA Building and the 1952 Lever House on Manhattan's Park Avenue. A concrete slab  acts as a podium which in the three cases is the connection to the street. The function of the podium, in the FOCSA building and the Edificio del Seguro Médico, are of different use (commercial vs residential), in the Lever House, the ground floor contains commercial tenants as the rest of the building. In the Lever House, there is an open plaza and a garden with pedestrian walkways. Only a small portion of the ground floor is enclosed. The second and largest floor contained the employees' lounge, medical suite, and general office facilities. The third floor contains the employees' cafeteria  and terrace. The offices of Lever Brothers and its subsidiaries occupied the remaining floors with the executive penthouse on the 21st floor. The top three stories contained most of the property's mechanical space. The site distribution and parti is also similar to the proposed project that was to replace the Plaza del Vapor, and designed in 1959 by the architect Carlos Alfonso for the National Institute of Savings and Housing under Pastorita Núñez.