WHY IS
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Hidden costs

Established evidence

Free parking is paid for through everything else.

A parking space consumes land, concrete, and money. Mandates hide that bill inside every home—even when a resident would rather have lower rent than a place for a car.

What this does not mean: Removing a mandate does not ban parking. Builders can still provide it where residents will pay for it, while cities manage curbs and accessibility directly.

Figures from the papers

Inspect the published evidence directly

Study chart · redrawn

Figure 1 · Downtown housing growth before and after adaptive reuse reform

Adaptive-reuse projects supplied thousands of homes after Los Angeles changed its rules.

REDRAWN FROM STUDY DATAFigure 1 · Downtown housing growth before and after adaptive reuse reform
Figure 1 · Downtown housing growth before and after adaptive reuse reformAdaptive-reuse projects supplied thousands of homes after Los Angeles changed its rules. Values digitized from Figure 1 in the archived publication; minor reading error is possible.04,0008,00012,00016,000Net new downtown homesPeriodNet new housing units1960s1970s1980s1990s1999–20082000s total

Source: Manville (2013), Figure 1; PDF p. 7.

Read carefully: This chart is descriptive, and downtown adaptive reuse is a specialized setting with simultaneous market changes.

Study chart · redrawn

Figure 1 · Parking generation by non-convention hotels

The published relationship is weak: the four observations scatter widely around the fitted line.

REDRAWN FROM STUDY DATAFigure 1 · Parking generation by non-convention hotels
Figure 1 · Parking generation by non-convention hotelsThe published relationship is weak: the four observations scatter widely around the fitted line. Four plotted observations digitized from Figure 1; fitted line uses the printed equation P = 0.33X + 36 (R² = 0.089).507090110130Peak occupied parking spacesHotel rooms100150200250Printed fitted line

Source: Shoup (1997), Figure 1; PDF p. 3.

Read carefully: The figure itself warns that the sample is small and the fit is weak (R² = 0.089). It illustrates a measurement problem rather than a causal estimate.

Study chart · redrawn

Figure 2 · Cost per net parking space added at UCLA

Later UCLA garages commonly cost about $19,000–$26,000 per net added space in 1994 dollars.

REDRAWN FROM STUDY DATAFigure 2 · Cost per net parking space added at UCLA
Figure 2 · Cost per net parking space added at UCLALater UCLA garages commonly cost about $19,000–$26,000 per net added space in 1994 dollars. Values reconstructed from quantities reported by the authors at Figure 2; values are printed above each bar in constant 1994 dollars.05,00010,00015,00020,00025,00030,000Cost per parking space added (1994 $)Year structure was builtUCLA parking structures1961196319641966196719691977198019831990 A1990 B1991

Source: Shoup (1997), Figure 2; PDF p. 5.

Read carefully: These are construction costs for twelve UCLA parking structures, not a direct estimate of how much a parking mandate raises rent.

Evidence stack

Studies behind this conclusion

Shoup, 1997Peer reviewed

The High Cost of Free Parking

Minimum parking mandates bundle costly car storage into housing and development, regardless of what residents actually want.

Keep in mind: Foundational analysis rather than a single causal policy evaluation.

Study details →
Manville, 2013Peer reviewed

Parking Requirements and Housing Development

Removing parking requirements made adaptive reuse housing feasible in buildings where mandated parking would have been difficult or impossible.

Keep in mind: Downtown adaptive reuse is a specialized setting and project selection is nonrandom.

Study details →

From evidence to policy

Reforms connected to this claim

03Let homeowners add a homeA backyard cottage, garage apartment, or basement home can house a parent, a renter, a caregiver, or the next generation.04Stop forcing every home to buy parkingBuilders can still provide parking. Just stop hiding a mandatory space—and its cost—inside every apartment.
All evidence claimsSearch the research library