Scenario Controls
Down Payment Target
20%
Household Savings Rate
15%
30-Year Mortgage Interest Rate
Historical Rate
Price-to-Income Multiple
3.4x
In 1975 ($45k vs $13.2k)
Years to Save Down Payment
4.5 Yrs
20% down at 15% savings
Est. Monthly Mortgage %
29.4%
At 9.0% historical rate
Park Slope Brownstone vs. NYC Teacher Salary Trajectory (1970–2024)
Home Price ($)
Annual Salary ($)
Price Multiple (x)
1975
Historical Context & Economic Shift
In 1975, Marvin Ciporen, an NYC public school teacher, purchased a Park Slope brownstone for approximately $45,000. At the time, an average NYC public school teacher earned $13,200 annually, yielding a manageable price-to-income ratio of 3.4x.
By 2024, that same Park Slope property appreciated to approximately $5,200,000, while an experienced teacher's salary grew to $94,000—exploding the price-to-income multiple to over 55x. What was once attainable for working-class civil servants has transitioned into an ultra-exclusive luxury asset class.
Data & Export Tools
Canonical State Snapshot: NYC Housing Affordability Metric
Selected Era
1975
Career & Neighborhood
NYC Teacher / Park Slope
Nominal Home Price
$45,000
Annual Salary
$13,200
Salary Multiple
3.4x
Years to Save Down Payment
4.5 Yrs