Building Floor Coefficient (KLB), an Important Factor to Address Jakarta's Housing Emergency

The affordable housing emergency in Jakarta has been going on for several years. It is appropriate for the public, especially those directly affected, to find out the root of the problem. Let's explore the lack of availability of decent and affordable housing in the capital city, and the solutions that can be offered by the government.

Among the factors you may have heard about in relation to the shortage of affordable housing supply in Jakarta, the Building Floor Coefficient (KLB) may be one that comes up frequently.

So, what is the Building Floor Coefficient (KLB)? Why does KLB affect the provision of housing in Jakarta?

Building Floor Coefficient is a number that determines the height of a building set by the government. In other words, the Building Floor Coefficient is a guideline that limits the number of floors that are allowed to be built on a building in the respective area.

The Building Floor Coefficient can also be defined as the percentage ratio between the total floor area of a building and the available land area.

To know the limit of the number of floors that can be built on a building, you need to know the Basic Building Coefficient or KDB first. The Basic Building Coefficient is the percentage of land that is allowed to be built on, which varies in each region.

By knowing the Basic Building Coefficient (KDB) of the land location, you can calculate the buildable land area. Then, to calculate the buildable floor area, you simply multiply the land area by the Building Floor Coefficient (KLB) figure applicable in the area.

For example, if you have a land area of 1000^{m2 with a} Basic Building Coefficient (KDB) of 50% and a Building Floor Coefficient (KLB) of 4, then the buildable land area is 1000 m2 x 50% = 500 m2 ^. Meanwhile, the total floor area that can be built is 4 x 1000 m2 = 4000 m2.

By knowing the floor area and the buildable land area according to the Building Floor Coefficient and Building Floor Coefficient in the area, the number of floors allowed to be built is 4000 m2 : 500 m2 = 8 FLOORS.

As mentioned above, the Building Floor Coefficient figure for each area is not the same. This is of course related to the spatial plan of each area. Higher Building Floor Coefficients are found in areas that need to be developed such as office areas and transit oriented development areas, or TOD areas in Jakarta.

To find out the Basic Building Coefficient (KDB) and Building Floor Coefficient (KLB) in Jakarta, the public and construction actors can access information on the site jakartasatu.jakarta.go.id.

Returning to the issue of the housing emergency in Jakarta, an increase in the Building Floor Coefficient is a decisive factor in realizing vertical growth in Jakarta that can provide affordable flats for the community.

Apart from being able to utilize land more optimally in terms of space, increasing the intensity of land use by increasing the Building Floor Coefficient in central Jakarta also directly makes high land prices bearable by more flats. This makes it possible to provide affordable housing in strategic locations in Jakarta.

The strategic location in question does not mean that cheap flats can be built in the Sudirman-Thamrin area. This is because the Tax Object Sale Value in the most high profile area in Jakarta is already sky-high. Even so, there are still many other potential lands in Jakarta that can be the location for the construction of low-cost houses. Increasing the Building Floor Coefficient means more optimal space utilization and increased availability of decent and affordable flats.

That's why you often hear the term Building Floor Coefficient in connection with the housing shortage, land shortage, and slum problem in Jakarta.

Hopefully the Building Floor Coefficient will be increased soon for a better Jakarta!