Two organizations representing the development industry have released a report to highlight the costs of doing business.

"Regulation imposed by all levels of government (whether local, state or federal) accounts for 32.1 percent of the cost of an average multifamily development, according to a new study conducted jointly by the National Association of Home Builders (NAHB) and the National Multifamily Housing Council (NMHC)," according to an article on the NAHB's website.
According to the article, the report used a survey of multi-family developers from both organizations to build its conclusions. Over 90 percent of surveyed multi-family developers reported incurring hard costs during the approval processes. The article includes a graph breaking down the kinds of regulations that add costs to multi-family development.
Obviously, given the purpose of these two organizations in representing the interests of the construction and development industry, the findings should be considered with the proper frame. As noted on the website where the full report can be found, however, the only way to collect data on the costs of regulations is to survey developers.
The question of whether reductions in regulatory costs would be for public or private benefit remains.
FULL STORY: Regulation: Over 30 Percent of the Cost of a Multifamily Development

What ‘The Brutalist’ Teaches Us About Modern Cities
How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

‘Complete Streets’ Webpage Deleted in Federal Purge
Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

The VW Bus is Back — Now as an Electric Minivan
Volkswagen’s ID. Buzz reimagines its iconic Bus as a fully electric minivan, blending retro design with modern technology, a 231-mile range, and practical versatility to offer a stylish yet functional EV for the future.

Healing Through Parks: Altadena’s Path to Recovery After the Eaton Fire
In the wake of the Eaton Fire, Altadena is uniting to restore Loma Alta Park, creating a renewed space for recreation, community gathering, and resilience.

San Diego to Rescind Multi-Unit ADU Rule
The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

Electric Vehicles for All? Study Finds Disparities in Access and Incentives
A new UCLA study finds that while California has made progress in electric vehicle adoption, disadvantaged communities remain underserved in EV incentives, ownership, and charging access, requiring targeted policy changes to advance equity.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research