PRINCIPLES OF ARCHITECTURE
A building is an assemblage that is firmly attached to the ground and that provides
total or nearly total shelter for machines, processing equipment, performance of
human activities, storage of human possessions, or any combination of these.

• Building design is the process of providing all information necessary for construction

of a building that will meet its owner’s requirements and also satisfy public
health, welfare, and safety requirements. Architecture is the art and science of
building design. Building construction is the process of assembling materials to
form a building.
Building design may be legally executed only by persons deemed competent to
do so by the state in which the building is to be constructed. Competency is determined
on the basis of education, experience, and ability to pass a written test of
design skills.

• Architects are persons legally permitted to practice architecture. Engineers are

experts in specific scientific disciplines and are legally permitted to design parts of
buildings; in some cases, complete buildings. In some states, persons licensed as
building designers are permitted to design certain types of buildings.
Building construction is generally performed by laborers and craftspeople engaged
for the purpose by an individual or organization, called a contractor. The
contractor signs an agreement, or contract, with the building owner under which
the contractor agrees to construct a specific building on a specified site and the
owner agrees to pay for the materials and services provided.
In the design of a building, architects should be guided by the following principles:
1. The building should be constructed to serve purposes specified by the client.
2. The design should be constructable by known techniques and with available
labor and equipment, within an acceptable time.
3. The building should be capable of withstanding the elements and normal usage
for a period of time specified by the client.
4. Both inside and outside, the building should be visually pleasing.
5. No part of the building should pose a hazard to the safety or health of its
occupants under normal usage, and the building should provide for safe evacuation
or refuge in emergencies.
6. The building should provide the degree of shelter from the elements and of
control of the interior environment—air, temperature, humidity, light, and acoustics—
specified by the client and not less than the minimums required for safety
and health of the occupants.
7. The building should be constructed to minimize adverse impact on the environment.
8. Operation of the building should consume a minimum of energy while permitting
the structure to serve its purposes.
9. The sum of costs of construction, operation, maintenance, repair, and anticipated
future alterations should be kept within the limit specified by the client.
The ultimate objective of design is to provide all the information necessary for the
construction of a building. This objective is achieved by the production of drawings,
or plans, showing what is to be constructed, specifications stating what materials
and equipment are to be incorporated in the building, and a construction
contract between the client and a contractor. Designers also should observe construction
of the building while it is in process. This should be done not only to
assist the client in ensuring that the building is being constructed in accordance
with plans and specifications but also to obtain information that will be useful in design of future buildings.