Floor Area Ratio Chicago

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.

Floor area ratio chicago. 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. The far is available for buildings in downtown mixed use districts. Story 1 floor area 50 ft. 36 000 x 34 40 1 238 400.

Chicago 1957 floor area for determining floor area ratio. Take the lot size and multiply it by the floor area ratio. Lot area per unit density 400 sq ft dwelling unit 400 sq ft efficiency unit 200 sq ft sro unit. 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. 10 000 ft2 story 2 floor area 50 ft. Calculate the floor area ratio. As a formula far gross floor area area of the plot.

The floor area of the building or buildings on a zoning lot divided by the area of that zoning lot. For example on a 5 000 square foot lot with a 2 0 far you could construct a building with 10 000 square feet of total floor area the. Chicago s zoning code awards a floor area ratio far bonus for green roofs that cover more than 50 percent of the roof area. 10 000 ft2 step 3.

Controls a property s density. The terms can also refer to limits imposed on such a ratio through zoning. 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. View the chicago zoning ordinance.

45 ft for residential buildings with lot frontage of less than 32 ft 47 ft when lot front is over that. Determine the floor area of each story of the building. Far g b far 20 000 ft 2 20 000 ft 1 0 figure 1. Determine the gross floor area of the building.

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. Floor area bonus refers to additional buildable square footage provided to developers as an. Cost of 1 square foot of floor area 80 x median cost of land per buildable square foot. A two story building on the same lot where each floor was 500 square feet.

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.