5B-2-6: DENSITY FORMULA:

The following table of population density is generally indicative of current and short range projected trends in family size for new construction and shall be used in calculating the amount of a required dedication of acres of land or the cash contribution in lieu of land unless a written objection thereto is filed by the subdivider or developer:

TABLE OF ESTIMATED ULTIMATE POPULATION PER DWELLING UNIT

Children Per Unit
Type Of Unit	Preschool 0–4 Years	Elementary Grades K–5 5–10 Years	Junior High Grades 6–8 11–13 Years	(Total) (Grades K–8) (5–13 Years)	High School Grades 9–12 14–17 Years	Adults 18 And Up	Total Per Unit
Detached single-family:
2 bedroom	0.125	0.120	0.026	(0.146)	0.018	1.700	1.989
3 bedroom	0.308	0.381	0.174	(0.555)	0.146	1.978	2.987
4 bedroom	0.472	0.513	0.314	(0.827)	0.313	2.195	3.807
5 bedroom	0.402	0.620	0.420	(1.040)	0.327	2.650	4.419
Attached single-family:
1 bedroom	---	---	---	(---)	---	1.050	1.050
2 bedroom	0.051	0.075	0.011	(0.086)	0.021	1.741	1.899
3 bedroom	0.217	0.212	0.022	(0.234)	0.051	1.775	2.277
4 bedroom	0.333	0.316	0.166	(0.482)	0.180	2.333	3.328
Apartments:
Efficiency	---	---	---	(---)	---	1.000	1.000
1 bedroom	---	---	---	(---)	---	1.190	1.190
2 bedroom	0.038	0.065	0.021	(0.085)	0.035	1.500	1.659
3 bedroom	0.208	0.157	0.037	(0.194)	0.082	2.330	2.814

 

Note:   There are only 3 significant categories provided in this chart. Because of the similarity of yields of all types of attached single-family, only 1 category is provided. The same is true with apartments, thus only 1 category. Because of the short history of some newer types of single units, both detached and attached individual evaluations may be necessary.

In the event a subdivider or developer files a written objection to the foregoing Table of Estimated Ultimate Population, he shall submit his own demographic study showing the estimated additional population to be generated from the subdivision or planned unit development. The final determination of the density formula to be used in such calculations shall be made by the City Council based upon such demographic information submitted by the subdivider or developer and by the park districts, school districts or others. It is recognized that population density, age distribution and local conditions change over the years, and the specific formula for the dedication of land or the payment of cash contributions in lieu of land, as stated herein, is subject to periodic review and amendment if necessary. (Ord. 0-30-88, 9-6-1988)