Hotel Residence in Atacama – Chile \ LAN Architecture

• January 28, 2012

LAN ALMA HOTEL DESERT EN26 600x848 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, render courtesy LAN Architecture

SITE

Extreme

Extreme is the word that keeps coming back on the table at the time of the study. Extreme but necessary is the choice to implement life and activity in the region.

LAN ALMA HOTEL DESERT EN03 600x848 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Location plan, drawing courtesy LAN Architecture

Extreme is the site, the climate, the drought, the light, the horizontal dimension of the territory. Extreme is also the way the place will be used: without schedule, without rules, without connection to the site, lost in the middle of the desert.

Extreme is the fact that once there, there is no alternative but to live in this very hotel. Extreme is also the time given to draw a project that embraces all the factors.

LAN ALMA HOTEL DESERT concept 3 600x242 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Site concept, drawing courtesy LAN Architecture

Facing the extreme.

This is the drive that leads us, from the desert, through civilizations, techniques and architectures to an idea. In this process, we quickly understood that for a form of life to develop, a certain number of conditions are essential, and the more favorable the conditions more the life form will evolve and civilize and head towards urbanity and culture.

LAN ALMA HOTEL DESERT v1 600x297 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, render courtesy LAN Architecture

How to transcribe these conditions in a site where for thousands of years the phenomenon hasn’t been generated by itself? How to import urbanity in an area where nature overwhelms man?

Our hotel project rapidly became a small city project, a human settlement in which is combined habitat, commerce, education, politics, culture. A city inhabited, thanks to ESO by Man from different origins where ethnic and cultural diversity meets.

LAN ALMA HOTEL DESERT v6 600x393 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, render courtesy LAN Architecture

Amazing isn’t it?

How to define a city but a gathering of individual, collective and public interconnected within a limit?

Our proposition has the ambition of unifying in a single gesture the conditions that will structure an ecosystem and allow human  activity in a human hostile environment.

STRATEGY

To achieve the announced objective we set a strategy where each component of the project plays an essential role in the definition of the whole:

Rooms becomes roof, roof is a plaza, the plaza a window, the window a façade, the façade a landscape, etc…

The hotel is clearly defined and identified easily, alike a city; it can be apprehended, to become a landmark.

Simultaneously, each part presents its own identity, and shows its complementarity to the other.

LAN ALMA HOTEL DESERT concept 600x592 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Strategy, drawing courtesy LAN Architecture

The following diagrams show the genesis of the composition, a system of relationships:

1- THE SITE

2- ALTIMETRIC INTEGRATION SYSTEM: COMMON SPACE – ROOM

In order to limit the impact of the operation on the site, the room system takes place on the higher plateau, taking advantage of the different levels on the site, protects and defines therefore spaces located on the lower level.

LAN ALMA HOTEL DESERT v2 600x396 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, render courtesy LAN Architecture

3- PLAN LAYOUT PRINCIPLE – VISUAL INTEGRATION ON SITE

Orientation and views were the principle factor that guided the layout of the room. 49% of the rooms are oriented towards west, 24% towards east, 17% towards north and 10% towards south.

This layout generates two spaces “piazza” East and West that can be used at different time in the day depending on the sun.

4- THE ROOMS-INTERIOR-EXTERIOR PRIVATE AND COLLECTIVE

Around the piazzas, two principles define the project functionality.

System 1:
The rooms are built in and juxtaposed on the terrace, to define different kind of exterior spaces.
A private sunken and protected terrace is accessible from the room that opens up on a wide belvedere, a place of conviviality to meet and watch the sunset.

System 2:
The rooms form an elevated platform that offers the best views on the surroundings while increasing the head height of the subjacent spaces.

LAN ALMA HOTEL DESERT v5 600x394 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, render courtesy LAN Architecture

5- THE COMMON SPACES:

The layout and the organization of the upper part of the project define the common spaces.

System 1:
The restaurant etc…with its 5m high ceiling ending with an open roof slit, the space is visually connected with the West piazza and the horizon becomes the protagonist of its identity, the latter participates by its light and colors to the identity of the space.

The space will be used around the clock and should be able to accommodate simultaneously big gatherings, small groups and individuals.

Therefore, leveled spaces following the natural slope of the site generate more intimate spaces, small lounges and larger spaces.

System 2:
The swimming pool part etc. …with its 12m high ceiling is a kind of programmed winter garden, an interior Landscaped area that offers a very different microclimate from the exterior environment.

The desert is still present but not in a hostile way anymore, it is softened and promotes a friendly atmosphere. The zenithal light, changeable, allows different atmosphere.

6- RELATIONSHIP OF DIFFERENT FUNCTIONS:

LAN ALMA HOTEL DESERT concept 2 600x848 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Strategy, drawing courtesy LAN Architecture

CLIMATE

The climate of the Atacama Desert is very particular, and although it is experienced as extreme and inhospitable, the temperatures are not that extreme, at least, not at the altitude of the site at 2900m. It is not the dry bulb temperatures measured in normal conditions – in the shade and sheltered from the wind – that make the climate inhospitable, but rather other elements such as solar radiation and wind.

Here solar radiation is all the more important as it is paired with practically non cloud cover. As a result, people and buildings are exposed to a high degree of insolation and during the day, almost all the year round, and at night, a «negative radiation» or heat loss through the sky that increases when there is no cloud cover.

So if one is protected from the sun and the wind whilst enjoying the outside heat, we can experience one of the most enjoyable climates. Once we know how install protection and create openings, direct needs are relatively low.

This could be the principle theme of the project: to generate transitional spaces between outside and inside that reduce energy needs and offer a variety of different situations.

Insertion

The insertion of the project in the site is dictated primarily by the plot and the desire to limit excavation work, and to offer interesting views to all rooms and living areas.

The project appears to float above the contour lines and is orientated to the west, parallel to the slope with views towards the Salar of Atacama.

All rooms, whatever their orientation, have unobstructed and interesting views. The play of levels means that no room has a vis-à-vis effect (as indicated in the below diagram).

LAN ALMA HOTEL DESERT diagram 600x352 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, drawing courtesy LAN Architecture

The climate is, as we have seen, in terms of dry temperature, relatively pleasant. The bioclimatic design is based on the solar protection and limiting heat loss at night.

LAN ALMA HOTEL DESERT diagram 2 600x684 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama, drawing courtesy LAN Architecture

Thus, the strategy is based on a structure of staggered floors offering sun protection and allows the creation of buffer zones that limit convection. These spaces are also an exterior extension of the dwelling. This morphology is backed against the ground to take advantage of its inertia.

The aim is to limit the buildings gross requirements in terms of heating, cooling and lighting. The effect is to smooth out the outside temperature curve while limiting the effects of wind and radiation.

To reduce thermal loss, all the walls are insulated. In subsequent design phases, studies will allow us to refine the performance of the insulation to avoid the risk of increasing needs for cooling by an overheating phenomenon.

The systems we anticipate incorporating at this stage of the project, combine performance and realistic goals and can be classified under four themes: environment, design, economics and technology.

The project’s context – an isolated site in Chile and unconnected to the usual networks – orientates working towards a balance of the four themes.

The goal is to combine the highest environmental efficiency (energy, raw materials, transportation, etc…) with the less complex technology (low maintenance, easy implementation, etc..) and the lowest cost possible.

These three themes go towards of detailed and responsive design.

PROGRAM DISTRIBUTION

The strong directional design drives the initial decision to split the residence program in two distinctive horizontal sections: the upper zone dedicated to the guest’s rooms and the below zone which address the common areas.

The main entrance to the residence is at the ground floor, at level -8.00 m, where all the reception services are gathered.

LAN ALMA HOTEL DESERT program 600x301 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Program, drawing courtesy LAN Architecture

At this floor, the overall organization of the program divides the space in a wet area, where to find all the sport activities as well as the gardens, versus the dry zone, where to find the restaurants lounges and the multipurpose room. The two zone have been customized and accurately designed in order to fit the specificity of the building’ s section: Where the water reflects the slot of light coming from the last level, the restaurant expands towards the above west plaza.

The entrance area is centered between the dining lounges to the north and the recreational rooms to the south. Split levels and double height sections animate the floor, which benefits of extraordinary panoramic exposure on three sides. As thematic sequence, the program has been structured in order to provide adequate alternation of more intimate and private domain, such as reading lounges, and more open and dynamic areas, i.e. buffet zone or game rooms.

LAN ALMA HOTEL DESERT axo 600x1155 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Axonometric, drawing courtesy LAN Architecture

The Residence’s rooms define the content of the concrete box, and are distributed on three levels: the majority of the suites are allocated at level 2, with direct access and security-control entrances from and to the campus. This floor is internally connected to the lower common areas as well as to the other two floors of rooms. Each of the three floors offer to the guests unique rooms condition: within a rational and modular design in fact, the scheme achieves diversity of interiors through the multiplicity of hybrid spaces which surrounds the rooms. All the rooms benefit of exterior views as well as connections towards the east and west plaza, whose geometry generates semi-private terraces and more open collective zone where to socialize.

LAN ALMA HOTEL DESERT hotel room 600x417 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Room layout and section, drawing courtesy LAN Architecture

The efficient use of the floor plate creates intelligent distribution of rooms served by minimum circulation. Nevertheless surprising and pleasant moment of social gatherings are offered and evenly disposed along the rings. The strong relationship with the exterior and the special topographical plates that the design features provide many degrees of interactions between the users. Due to the scale and variety of lounge’s sizes the common space at the rooms floors in fact range from small and intimate spaces to the extreme of the plaza’s openness.

LAN ALMA HOTEL DESERT ele sec 600x462 Hotel Residence in Atacama   Chile \ LAN Architecture

Hotel Residence in Atacama - Elevation and section, drawing courtesy LAN Architecture

+ All images and drawings courtesy LAN Architecture
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  1. [...] The room system takes place on the higher plateau, thereby protecting and defining the spaces on the lower level. The layout of the room is guided by the orientation and views of the room. 49% of the rooms are oriented towards the west, 24% towards east, 17% toward north and 10% towards south. The rooms are built in and juxtaposed on the terrace, to define different kind of exterior spaces. The rooms form an elevated platform that provides nice wholesome views on the surroundings. The restaurant has a 5m high ceiling with an open roof slit and the horizon brings in its identity through the natural light and colors. The swimming pool is a kind of programmed winter garden, which acts as a refreshing area with a climate totally different from the exterior environment. [Found on PlusMood] [...]