The proposal for one of the two sites in Tehran, Iran owned by
Benetton was defined by the guidelines derived through a
comprehensive investigation and interpretation of both the
competition program and the context without having any initial
formalistic assumption whatsoever regarding the design. The
architectural design process can be characterized as an “inside
out” development that evolved step by step with a continuous search
for innovative solutions to the various requirements of the program
with the aim of achieving a sustainable and modernist building.
The specific design challenges and the respective solutions shaping
the architecture can be summarized as:
The mixed-use building program requiring the incorporation of
commercial, office and residential spaces in a single building:
Separate entrances and vertical circulations to offices and
residences planned on the eastern side facing the neighboring
building
Separate technical rooms for commercial units, offices and
residences that demand different type of electrical and mechanical
infrastructure and usage
Decreasing size of upper floor plates due to the local building
code:
Reduce of floor area turned into advantage by designing common and
private recreation areas on top of larger floors
Creation of an atrium void to comply with the floor area
restrictions that also serves for natural lighting and ventilation
as described below
Maximum display area for the commercial units
Ground and 1st
floors skewed to increase display areas and visibility from Vali
Asr Avenue
Air pollution
Mechanical units on the façades that filter the outside air and
circulate it to the interior of the building
Interior garden underneath the atrium filtering the interior air
Traffic noise from Vali Asr Avenue and Hemmat Highway
Double layered building skin enclosing office spaces
Sliding façade panels and triple glazing with sound insulation
enclosing residences
Location of all residences on the northern part of the building,
instead of south facing the ever busy Hemmat highway
Privacy for residences in a country ruled by a regime restricting
certain freedoms
Planning of total 675m² residences as 5 apartments on three floors
instead of on a single floor as indicated in the competition
program, in order to allow more separation and privacy
Sliding opaque façade panels that block the visibility of the
interior from neighboring buildings
Open recreation area for residences secluded from the rest of the
building and encircled with glazed balustrades high enough to
ensure privacy
The scenery of Alburz Mountains north of Tehran that characterize
the city’s skyline
Maximizing the visibility of the mountains by skewing the office
floors towards north
Planning of residences on three adjacent floors facing the north,
in order to provide mountain view for all residences
Cost effective application of green design guidelines
Double layer building skin allowing the circulation of heated /
cooled fresh air and reducing the need for artificial HVAC
Preference for precast concrete slabs with activation of concrete
core that reduce the energy use for heating / cooling
Sunbreakers mounted to the outer layer of the façade, denser on
the south and southwest according to the intensity of sunlight
Adjustable sunblinds behind the inner layer of the façade
providing further protection from heating and glare
Depth of offices kept below 10m to allow maximum use of natural
lighting
Centrally located atrium allowing natural ventilation and sunlight
throughout the building interior
Automatically adjustable mirror over the skylight directing
sunlight down into the atrium
Energy generation with PV panels facing south on the roof and PV
glass of the atrium skylight that also serve for filtering the
sunlight
Energy efficient exterior and interior artificial lighting
Terraces and part of the flat roof covered with greenery that
absorb the rain water and reduce the heat island effect in summer
Rain water and grey water usage systems for flushes, car wash and
landscaping
Preference for a composite structure with steel columns and beams
on top of concrete basements allowing the use of recycled material
and the dismantling and reuse of steel components at the end of the
building’s life cycle
Preference for local granites for façade, floor and interior wall
cladding
Open and closed recreation areas with extensive use of plants and
trees to address the need for greenery in an ever growing city
where green areas are diminishing
Going through several phases of design studies visually described in
the summary sheet, an optimum solution to the various requirements of
the program and the context is embodied in the proposed structure
that will stand out in the urban fabric of Teheran with its unique
building mass and skin dynamically changing its pattern according to
the different angle of sunlight or user preferences. The ultimate aim
of the design is to erect a contemporary modernist building that
promotes green design and construction principles in the bustling
city of Teheran that is the most urbanized area in the region
spanning between Istanbul and Karachi.