Flat area is usually classified as the carpet area, built-up area, super built-up area and finally the saleable area. Many are unaware of the fact that the chargeable area is not the one between their walls but there's more...
Carpet Area: Area between the walls. Carpet area
must have permanent roof (slab) over it, at normal height. Owner must
get exclusive rights to use and resell the carpet area. Carpet area is
calculated by multiplying dimension of room, i.e. length x width. Total
carpet area is calculated by adding carpet areas of all rooms.
Generally, in addition to all the rooms, varandas, passages, area inside
the main door (if not included in living room dimension), balconies are
included in carpet area. FSI is applicable to carpet area. Depending
upon builder practice, carpet area may be 50% to 70% of of saleable
area. It is always good to find ratio of carpet area to the saleable
area, higher the ratio, better it is. This is just to give you idea of
what you actually can use, in practice it is in interest of the buyers
to find out what is carpet area and then apply loading factor on it (and
not do the other way, i.e. should not arrive at carpet by applying
loading factor to saleable area.
The example below will illustrate the way of finding saleble area by applying loading factor on the carpet area.
Saleable Area: 1125 sq ft
Loading Factor: 25% (or 1.25)
Find carpet area first by measuring actual dimensions, and then apply loading factor
Saleable area = 900 sq ft + 900 x 25% = 1125 sq ft
Terrace: Open area without roof, attached to the
main unit that buyer gets exclusive rights to use and resell (with the
main unit). Open areas with slab at least double the height of the
floor are also considered terrace area. FSI is not applicable to terrace
areas.
Balcony: Open area with roof (slab at floor height),
attached to the main unit that buyer has exclusive rights to use and
resell (with the main unit). Generally balcony area is added to total
carpet area. FSI is applicable to balconies.
Dry terrace or dry balcony: Area meant to dry
clothes that buyer has exclusive rights to use and resell (with main
unit). If it has roof (slab) at normal height, it should be treated as
balcony. If it does not have roof (slab) at normal height, it should be
treated as terrace.
Builtup Area: Carpet Area + area occupied by walls,
doors of the unit. Generally builtup area is not calculated separately,
it is included into the loading factor.
Loading factor or loading or load: Loading factor is
a number used for purpose of arriving at saleable area. It is used to
add constructed space not exclusively allocated to the buyer. Such area
generally includes shared areas such as lift/elevator area, staircases,
clubhouse, gymnasium, amenities area, etc. Loading factor 1.25
indicates that developer/builder is applying 25% on the carpet area.
Some builders, in addition to carpet area, include terrace and balcony
areas while applying the loading factor. If the project does not have
lot of amenities, the loading factor should be small. In most cases
loading factor of 1.3 is more than sufficient. Loading factor also
includes parking space (irrespective of it is covered, open, stilt, sold
separately or not).
Superbuiltup Area: Carpet area + terrace +
balconies + areas occupied by walls + area occupied by
common/shared
construction (e.g. lift, stairs, club house, etc). Generally builders
use loading factor on carpet area to arrive at superbuiltup area. For
example, if carpet area is 500, and loading factor is 1.3, then
superbuiltup area is 500 x 1.5 = 750.
Usable Area: This is relatively new term.
Technically there is no difference between Usable Area and Superbuiltup
Area. Some builders use this term to justify higher loading factor,
typically in Mumbai where land cost is extremely high.
Saleable Area: Generally superbuiltup area is saleable area.
FSI: Floor Space Index. This is ratio of land to
carpet area. Generally it is 1 for residential plots (much less for
agricultural land) For example, if FSI is 1, and land area is 3000 sq
ft, then total carpet area on that land cannot exceed 3000 x 1 = 3000 sq
ft. It should be noted that FSI is not applicable to terraces. Also, this definition is provided for your information,
enforcement of FSI is taken care of by local authorities, and buyer
should not worry about it (unless there are allegations against the
builder of misusing FSI).
Summary
a) Bigger saleable area does not mean bigger carpet area
b) Lower rate does not mean good deal because it can result into higher
effective rate because of loading factor, and the way terraces are
charged (at 50% or 100% or at some other %), and if loading factor is
applied on top of terraces
c) Method used by builder can cause a big swing in the total price as demonstrated in the example above
d) Lower loading % does not necessarily mean it is better deal, one
needs to look into how it is applied on terraces, gardens and other
areas that are not included in FSI
e)
Per square foot rate is meaningless and misleading if not looked in light of the other factors that influence saleable area
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