2019.01.07 RH Consulting Memo - School Age ChildrenRH Consulting
297 Knollwood Road, White Plains, NY 10607 (914)997-7200 Fax: (914)997-7201
e-mail: pwmrhyman@verizon.net
Richard Hyman, AICP
January 7, 2019
TO: Loulazz@apl.com
FROM: Richard Hyman
On March 16, 2016, I submitted a memo estimating the number of public school students(pss)
that would be generated by the development proposed for 250 Ridge Street, Rye Brook. The
estimate ranged from 3 to 7 pss. Subsequently the proposed development has been revised
several times from eight two-bedroom affordable condos to the current proposal of four three-
bedroom affordable attached condos. Both the original and revised proposal include two market
rate single family detached houses.
Applying the Rutgers University Center for Urban Policy Research multipliers for all school age
children adjusted for the private school rate(92%) for the Blind Brook School District yields 1.44
pss(0.39x0.92x4) from the four affordable three-bedroom attached condos and 1.94
pss(1.05x0.92x2) from the two single family houses. Therefore based on this methodology, the
revised proposal would generate 3.38 pss(say 4 pss).
Another methodology is to utilize data from comparable developments. Cottage Landing Phase
1 in the Rye City School District was built in 2005 and has nine three-bedroom affordable
townhouses. There are currently 8 pss residing there which provides a multiplier of 0.89.
Applying this multiplier to the four affordable three-bedroom condos yields 3.56 pss(0.89x4).
Adding the 1.44 pss generated by the two market rate single family houses yields a total of 5 pss
generated by the revised proposal.
The U.S. Census American Community Survey for the Blind Brook School District had about
2,300 occupied housing units which yields about 0.70 public school students per occupied
housing unit based on a total enrollment of about 1,600 students. Applying this multiplier to the
six total units in the 259 North Ridge Street proposal yields a total of 4.2 pss(0.70x6)(say 5).
The range of estimates from the three methodologies is from 4 to 5 public school students to be
generated by the development proposed at 259 North Ridge Street.