Identify rooms or spaces with a three-digit number, provided
to identify each space.
This notation system is employed as a standard architectural
practice to designate rooms on architectural drawings and in
In addition, this method is helpful in managing data which
has been recorded through documentation of existing conditions,
budgeting and planning, and maintenance programs.
The highest digit refers to the floor level. The other two
digits refer to the specific space on that floor. For example,
the following designation may be provided for floors.
Employing a database, correlate this notation system with existing
notation systems or historic and contemporary names, with reference
to pertinent citations. If current architectural drawings with
space notation are part of the records of a structure, these
numbers should be referenced also.
The sequence of numbers on each floor begins with a primary entrance
and extends around the building in a clockwise manner, as the
plan of the structure permits.