Floor Area Ratio Chicago

As a formula far gross floor area area of the plot.

Floor area ratio chicago.

Lot area per unit density 400 sq ft dwelling unit 400 sq ft efficiency unit 200 sq ft sro unit. Story 1 floor area 50 ft. 10 000 ft2 story 2 floor area 50 ft. Calculate the floor area ratio.

36 000 x 34 40 1 238 400. It is often used as one of the regulations in city planning along with the building to land ratio. Floor area ratio zoning code section 17 17 0305. Floor area bonus refers to additional buildable square footage provided to developers as an.

10 000 ft2 step 3. Chicago 1957 floor area for determining floor area ratio. View the chicago zoning ordinance. G 10 000 ft 2 10 000 ft2 20 000 ft step 4.

Floor area ratio is the ratio of a building s total floor area to the size of the piece of land upon which it is built. None for schools and churches. The floor area of the building or buildings on a zoning lot divided by the area of that zoning lot. Far g b far 20 000 ft 2 20 000 ft 1 0 figure 1.

The terms can also refer to limits imposed on such a ratio through zoning. Determine the gross floor area of the building. A building s total floor area that is the square footage of every floor divided by the area of the parcel of land it s built on. Chicago s zoning code awards a floor area ratio far bonus for green roofs that cover more than 50 percent of the roof area.

Take the lot size and multiply it by the floor area ratio. Determine the floor area of each story of the building. This type of incentive does not cost the municipality any additional money beyond a small amount of staff time to assess the plans and grant the far bonus. 45 ft for residential buildings with lot frontage of less than 32 ft 47 ft when lot front is over that.

The far is available for buildings in downtown mixed use districts. Statistical area median income and 2 with respect to owner occupied housing at the time of the purchase of the unit a household earning up to 100 percent of the chicago primary metropolitan statistical area median income. The floor area ratio of a 1 000 square foot building with one story situated on a 4 000 square foot lot would be 0 25x. For a hypothetical buildable square foot cost of 43 the bonus contribution equation would be 36 000 square feet multiplied by 80 of 43 34 40.

A two story building on the same lot where each floor was 500 square feet.