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Floor area calculations:
Any printed or advertised reference to a unit's floor
area must be calculated in accordance with this:
The details of the approval method of floor area
calculations vary slightly depending on the type of home
to be constructed, and the attached detail sheets
describe the approved methods for each of the following:
" detached houses
" semi-detached houses
" row houses
" high-rise units
The requirements come into effect April 1, 1990 for
homes and condominium units and after that date.
Floor Area Calculations Detached Houses
Application of Calculation For any reference to area
measurement of a detached house, the measurement must be
calculated using the following approved method. This
includes references in:
- Agreement of Purchase and Sale
- Media advertising and
- Sales materials
That is to say, if in the course of selling detached
houses, reference is made to an area measurement, then
the following method must be used.
However, there is no requirement to specify an area
measurement, so if none is mentioned then this
definition need not be used.
Ether metric or imperial measurements may be used.
The following notation to purchasers must be included
in any materials which specify an area measurement:
"Note: Actual usable floor space may vary from the
stated floor area."
Calculation For detached houses, the floor area of
the house is the total area of each floor above grade
measured to the exterior face of the outside walls, less
openings to the floor below which
are not associated with stairs. Stairs may be
included (the area of treads and landings). However, if
the opening in the floor is oversized (larger than the
actual area of the stairs), that extra open area
(outside the limits of the treads and landings) must be
deducted from the floor area calculation.
A tolerance of 2.0% on the total area measurement is
acceptable.
The area of the garage is excluded from the floor
area calculation, but any finished year-round habitable
space above the garage is included. Finished are
enclosed atrium or sunroom areas meant for year-round
use may be included in the calculation. The area of any
open balconies or enclosed balconies (such as Florida
rooms) are not to be included in the calculation, unless
these areas are designed to be used as year-round
habitable space, and are heated and insulated to Code.
These areas may be shown separately. Example: 2,000
square foot house plus 150 square foot Florida room.
Finished area, where all or part of the area is below
the first storey (including walk-outs), may be included
in the total floor area figure, but must also be
specified separately. Example: 2,000 square foot house
which includes 800 square foot finished area below the
first story. Measurements for this space below the first
storey are to the exterior surfaces of foundation walls.
Floor Area Calculations Semi-Detached Houses
Application of Calculation For any reference to area
measurement of a semi-detached house, the measurement
must be calculated using the following approved method.
This includes references in:
- Agreement of Purchase and Sale
- Media advertising and
- Sales materials
That is to say, if in the course of selling
semi-detached houses, reference is made to an area
measurement, then the following method must be used.
However, there is no requirement to specify an area
measurement, so if none is mentioned then this
definition need not be used.
However, there is no requirement to specify an area
measurement, so if none is mentioned then this
definition need not be used.
Ether metric or imperial measurements may be used.
The following notation to purchasers must be included
in any materials which specify an area measurement:
"Note: Actual usable floor space may vary from the
stated floor area."
Calculation For semi-detached houses, the floor area
of the house is the total area of each floor above grade
measured from the centerline of the common wall to the
exterior face of the outside wall, less any openings to
the floor below which are not associated with stairs.
Stairs may be included (the area of treads and
landings). However, if the opening in the floor is
oversized (larger than the actual area of the stairs),
that extra open area (outside the limits of the treads
and landings) must be deducted from the floor area
calculation.
A tolerance of 2.0% on the total area measurement is
acceptable.
The area of the garage is excluded from the floor
area calculation, but any finished year-round habitable
space above the garage is included. Finished are
enclosed atrium or sunroom areas meant for year-round
use may be included in the calculation. The area of any
open balconies or
enclosed balconies (such as Florida rooms) are not to
be included in the calculation, unless these areas are
designed to be used as year-round habitable space, and
are heated and insulated to Code. These areas may be
shown separately. Example: 2,000 square foot house plus
150 square foot Florida room.
Finished area, where all or part of the area is below
the first storey (including walk-outs), may be included
in the total floor area figure, but must also be
specified separately. Example: 2,000 square foot house
which includes 800 square foot finished area below the
first story. Measurements for this space below the first
storey are to the exterior surfaces of foundation walls,
and to the center lines of demising walls.
Floor Area Calculations Row Houses
Application of Calculation For any reference to area
measurement of a row house, the measurement must be
calculated using the following approved method. This
includes references in:
- Agreement of Purchase and Sale
- Media advertising and
- Sales materials
That is to say, if in the course of selling row
houses, reference is made to an area measurement, then
the following method must be used. However, there is no
requirement to specify an area measurement, so if none
is mentioned then this definition need not be used.
However, there is no requirement to specify an area
measurement, so if none is mentioned then this
definition need not be used.
Ether metric or imperial measurements may be used.
The following notation to purchasers must be included
in any materials which specify an area measurement:
"Note: Actual usable floor space may vary from the
stated floor area."
Calculation For row houses, the floor area of the
house is the total area of each floor above grade
measured from the centerline of the common wall to the
centerline of the common wall or to the exterior face of
the outside wall, where appropriate, less any openings
to the floor below which are not associated with stairs.
Stairs may be included (the area of treads and
landings). However, if the opening in the floor is
oversized (larger than the actual area of the stairs),
that extra open area (outside the limits of the treads
and landings) must be deducted from the floor area
calculation.
A tolerance of 2.0% on the total area measurement is
acceptable.
The area of the garage is excluded from the floor
area calculation, but any finished year-round habitable
space above the garage is included. Finished and
enclosed atrium or sunroom areas meant for year-round
use may be included in the calculation. The area of any
open balconies or enclosed balconies (such as Florida
rooms) are not to be included in the calculation, unless
these areas are designed to be used as year-round
habitable space, and are heated and insulated to Code.
These areas may be shown separately. Example: 2,000
square foot house plus 150 square foot Florida room.
Finished area, where all or part of the area is below
the first storey (including walk-outs), may be included
in the total floor area figure, but must also be
specified separately. Example: 2,000 square foot house
which includes 800 square foot finished area below the
first storey.
Measurements for this space below the first storey
are to the exterior surfaces of foundation walls, and to
the center lines of demising walls.
Floor Area Calculations High-Rise Units
Application of Calculation For any reference to area
measurement of a high-rise house, the measurement must
be calculated using the following approved method. This
includes references in:
- Agreement of Purchase and Sale
- Media advertising and
- Sales materials
That is to say, if in the course of selling high-rise
units, reference is made to an area measurement, then
the following method must be used. However, there is no
requirement to specify an area measurement, so if none
is mentioned then this definition need not be used.
However, there is no requirement to specify an area
measurement, so if none is mentioned then this
definition need not be used.
Ether metric or imperial measurements may be used.
The following notation to purchasers must be included
in any materials which specify an area measurement:
"Note: Actual usable floor space may vary from the
stated floor area."
Calculation For high-rise units, the floor area of
the house is the total area of each floor measured as
the area bounded by the center lines of demising or
party walls separating one unit from another unit, the
exterior surface of all exterior walls, and the exterior
surface of the corridor wall enclosing and abutting the
unit, less any openings to the floor below which are not
associated with stairs. Stairs may be included (the area
of treads and landings). However, if the opening in the
floor is oversized (larger than the actual area of the
stairs), that extra open area (outside the limits of the
treads and landings) must be deducted from the floor
area calculation. Mechanical shafts or chases directly
servicing the unit will be included in the total area of
the unit.
A tolerance of 2.0% on the total area measurement is
acceptable.
Finished and enclosed atrium or sunroom areas meant
for year-round use may be included in the calculation.
The area of any open balconies or enclosed balconies
(such as Florida rooms) are not to be included in the
calculation, unless these areas are designed to be used
as year-round habitable space, and are heated and
insulated to Code. These areas may be shown separately.
Example: 2,000 square foot house plus 150 square foot
Florida room.
For high-rise units, measurements may be specified
for typical units for each model on the middle floor
(mid-way between ground and top floor). If this middle
floor method is used (rather than calculating
measurements of units on each floor) then the following
notation to purchasers must be included: "Note:
Floor area measurements were calculated on the middle
floor, such that units on lower floors may have less
floor space due to thicker structural members,
mechanical rooms, etc., while units on higher floors may
have more floor space."
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