When President Trump promises to “remove regulations on homebuilding,” the statement oversimplifies a complex regulatory structure. Most building regulations in the United States are actually controlled by local and state governments, not the federal government. A homebuilder in California must follow California’s energy efficiency standards, a homebuilder in Texas must follow Texas’s standards, and a homebuilder in New York must follow New York’s standards—each set different from the others. The federal government has limited direct control over local zoning rules, lot size requirements, setback distances, or building height restrictions, which are the regulations that most directly affect construction costs and timelines.
What the federal government does control are specific areas like flood insurance requirements, endangered species protections, and certain environmental standards that apply nationwide. To be clear about what could actually be removed: Trump could reduce federal environmental reviews (NEPA compliance), modify endangered species protections, streamline floodplain regulations, or eliminate certain federal infrastructure requirements. He could also pressure states to adopt model codes or reduce state-level restrictions. But he cannot simply ban local zoning laws or eliminate a city council’s authority to require setbacks and parking minimums—that power rests with local governments. Any claim to “remove regulations on homebuilding” that ignores this distinction is incomplete at best and misleading at worst.
Table of Contents
- What Building Regulations Does the Federal Government Actually Control?
- Federal Environmental and Infrastructure Requirements That Drive Up Costs
- State and Local Regulations—The Real Cost Drivers for Homebuilding
- What a Federal Deregulation Effort Could Realistically Accomplish
- The Risks and Unintended Consequences of Reducing Regulations
- State-Level Responses and the Patchwork Effect
- The Future: Federal Pressure on Local Zoning
- Conclusion
- Frequently Asked Questions
What Building Regulations Does the Federal Government Actually Control?
The federal government’s authority over homebuilding is narrower than many assume. The Department of Housing and Urban Development (HUD) sets minimum standards for certain federally-funded housing programs, but it doesn’t regulate private homebuilding in most cases. The Environmental Protection Agency enforces the Clean Water Act and wetlands protections, which can delay or prevent construction in sensitive areas. The Army Corps of Engineers controls permitting in wetlands and navigable waters. The Fish and Wildlife Service enforces the Endangered Species Act, which has blocked or modified development projects when threatened species habitats are at stake. FEMA manages the National Flood Insurance Program and floodplain regulations. The Department of Transportation sets standards for road access and safety.
These federal rules exist for specific reasons—wetlands protection prevents flooding and filters water, endangered species laws prevent extinction, flood insurance reduces future disaster costs—but they do add layers of compliance and cost to projects. One concrete example: a homebuilder planning a 200-lot subdivision in Florida might need to spend months getting federal approval if any part of the land sits in a federally-protected wetland. Under current law, the Corps of Engineers can deny the permit if environmental impacts are significant. If trump administration policies reduce these federal reviews or lower the bar for approval, the timeline could shorten from 12 months to 4 months, potentially saving the developer hundreds of thousands in carrying costs. However, this same reduction could increase flooding risk during hurricanes, which would increase insurance costs for every homeowner in that development and strain state and local emergency services.
Federal Environmental and Infrastructure Requirements That Drive Up Costs
Beyond environmental agencies, federal requirements in other areas impose real costs. The Americans with Disabilities Act requires new construction to meet accessibility standards for people with disabilities—ramps, accessible bathrooms, parking spaces. The National Environmental Policy Act (NEPA) requires federal agencies to conduct environmental reviews before approving projects that use federal funding or federal permits. These reviews can take years for large projects and require expensive consultants to study impacts on air quality, noise, traffic, and wildlife. Building code standards, though primarily set by states and localities, often reference federal standards for electrical, plumbing, and fire safety systems.
Lead paint rules, mold standards, and radon testing protocols are federally mandated in some contexts. The practical limitation here is important: removing federal environmental reviews would mainly speed up permitting but wouldn’t change the underlying environmental facts. A wetland is still a wetland. Removing the requirement to study it doesn’t prevent flooding; it just means fewer people are officially aware of the risk when the flood comes. Similarly, eliminating endangered species protections doesn’t eliminate the species—it eliminates the legal mechanism for protecting habitat. Some projects would proceed faster and cheaper; others might create long-term costs for communities (increased flooding, species extinction, reduced property values in at-risk areas) that exceed the short-term savings.
State and Local Regulations—The Real Cost Drivers for Homebuilding
This is where the actual complexity lies. Building codes for structure, electrical, plumbing, and mechanical systems are set by state and local authorities, not the federal government. Most states adopt a model code (like the International Building Code) but modify it with state-specific amendments. Cities then layer on their own requirements. Zoning rules—which dictate where you can build housing, how dense it can be, how large lots must be, how far houses must be from property lines—are entirely local. Parking requirements, often cited as a major cost driver, are set by local zoning boards. Setback requirements (the distance a building must sit from the street or neighbors’ properties) are local. Height restrictions are local.
Architectural review boards in some jurisdictions require designs to match a certain aesthetic, adding cost and time. Consider two identical house plans built in two different cities: one in Austin, Texas, and one in Palo Alto, California. Austin’s zoning allows higher density, smaller lots, and fewer parking spaces. The same house might cost 15% less to build there simply because the zoning requires less land per unit. Palo Alto’s zoning requires larger lots, minimum setbacks, and architectural consistency, all of which are purely local decisions. Neither city is required by federal law to make these zoning choices—they choose them. Trump cannot unilaterally change these local rules, though his administration could attempt to incentivize states to streamline local regulations as a condition of federal funding. Several states have already begun loosening zoning restrictions on their own, particularly Oregon and Minnesota, but these are state-level policy changes, not federal mandates.
What a Federal Deregulation Effort Could Realistically Accomplish
A Trump administration focused on deregulation could take several concrete actions. First, it could streamline the federal environmental review process under NEPA, reducing the time required for reviews of major projects from 2-3 years to 6-12 months. This would particularly affect large subdivisions, mixed-use developments, and projects affecting federal lands or waters. Second, it could modify endangered species protections to allow more development in areas with threatened species, which would reduce delays in Western states and coastal areas. Third, it could streamline permitting under the Clean Water Act for filling wetlands or building near waterways.
Fourth, it could reduce compliance requirements for affordable housing programs and workforce development initiatives that currently require federal money to come with strings attached. However, the limitation is significant. Even if every federal regulation vanished overnight, a homebuilder still needs local zoning approval, local building permits, local environmental review, state fire codes, state plumbing codes, and local utility connections. The National Association of Home Builders estimates that approximately 30-40% of homebuilding costs come from regulatory compliance, but the vast majority of that comes from local and state regulations, not federal ones. Federal deregulation might reduce costs by 3-5% on average, and higher percentages in a few specific cases (coastal development with wetland issues, Western development in areas with endangered species). For most homebuilders in most jurisdictions, local zoning and building codes remain the bigger obstacles than federal rules.
The Risks and Unintended Consequences of Reducing Regulations
When regulations are removed, the costs don’t disappear—they shift. Removing environmental reviews before building in flood zones, for example, doesn’t prevent floods; it just means the risk is transferred from developers (who would have been denied permits) to homeowners and insurance companies (who bear the cost when flooding occurs). Insurance companies respond by raising premiums or withdrawing from high-risk areas, which increases housing costs for residents. Removing endangered species protections doesn’t eliminate the species—it eliminates legal protection, so if the species goes extinct, the loss is permanent and irreversible. Removing accessibility requirements for people with disabilities makes housing cheaper to build but creates permanent barriers for people with disabilities and their families.
There’s also a risk of regulatory arbitrage—if the federal government loosens rules but states don’t, builders will simply move to the most permissive jurisdiction, concentrating risk. If California keeps strict environmental standards but Arizona loosens them, development shifts to Arizona, creating a race to the bottom. This has happened in manufacturing and finance, where companies relocate to jurisdictions with weaker standards. The short-term benefit (cheaper housing in loosely regulated areas) comes with long-term costs (reduced water quality, increased flooding risk, ecosystem collapse) that eventually become very expensive to address. Additionally, removing regulations often requires building back trust and legal frameworks later, which is far more expensive than maintaining standards initially.
State-Level Responses and the Patchwork Effect
Many states are already taking their own action on housing supply and costs, independent of federal policy. California has reduced local zoning authority in recent years, allowing fourplexes statewide and streamlining approval for affordable housing. Minnesota eliminated single-family zoning entirely. Oregon has required cities to allow duplexes in residential areas. These are state-level decisions that bypass local control without federal intervention.
Some states have adopted “housing shortage declarations” that fast-track housing approvals. Others have set housing production targets and tied state funding to local compliance. This state-level activity is relevant to Trump’s promise because it shows that housing supply issues can be addressed through state action without federal intervention. If the goal is to increase housing supply and lower costs, state and local governments have the most direct levers. A federal administration can incentivize (through funding conditions) or embarrass (through rhetoric) local governments to streamline zoning, but cannot directly override local zoning decisions without constitutional issues. New Jersey’s approach—state-mandated affordable housing requirements that override local zoning—has been in place for decades and is state law, not federal law.
The Future: Federal Pressure on Local Zoning
Looking forward, the most realistic federal approach to housing regulation is indirect: tying federal funds (highway grants, infrastructure investment, disaster recovery funding) to housing policy benchmarks. A state or city that wants federal infrastructure money might be required to reduce parking minimums, eliminate single-family zoning restrictions, or streamline building permits. This is similar to how the federal government tied highway funding to drinking-age laws decades ago.
Such conditions would require Congressional action and would likely face legal challenges, but this is where actual federal leverage over local zoning exists. The Trump administration could also direct federal agencies to prioritize efficiency and issue guidance documents encouraging regulatory streamlining, though these would be advisory rather than binding. The administration could also reduce HUD funding to states with stringent affordable housing mandates, which would put pressure on states to relax requirements. These indirect approaches avoid constitutional conflicts but are slower and less certain than direct federal regulation.
Conclusion
The core answer to “which rules are local” is straightforward: almost all of them. Zoning, setbacks, height restrictions, parking minimums, building codes for structure and mechanical systems, and local environmental reviews are set by cities and states. The federal government controls a narrower band of rules covering wetlands, endangered species, flood insurance, accessibility standards, and environmental review processes. Federal deregulation could speed up some projects and reduce costs in specific cases, but the majority of homebuilding costs and delays stem from local decisions, not federal ones. Any realistic plan to increase housing supply and reduce costs must address local zoning and permitting, which are outside the federal government’s direct authority.
For homebuyers, homebuilders, and advocates for housing affordability, understanding this distinction matters. Promises to “remove regulations on homebuilding” at the federal level are often overstated. Real progress on housing supply requires state and local policy changes, and there’s only so much a federal administration can do to force those changes. What a federal administration can do—streamline environmental reviews, modify endangered species protections, reduce flood insurance requirements—will help at the margins but won’t solve the core housing supply problem. The cities and states that want to build more housing are already loosening restrictions on their own; those that want to restrict growth will resist federal pressure. The outcome will be a continued patchwork of housing policy across the country, with some areas loosening zoning significantly and others maintaining strict restrictions.
Frequently Asked Questions
Can the federal government eliminate local zoning laws?
No. Zoning is a local government power granted by state constitutions and state law. The federal government cannot directly eliminate or override local zoning. The administration could tie federal funding to zoning reforms, but cannot mandate local zoning changes.
Which federal building regulations add the most cost?
Environmental review under NEPA and endangered species protections are the most expensive federal regulations that affect timelines and project viability. Accessibility requirements add moderate costs. For most projects, local zoning and parking requirements add more cost than federal regulations.
Would removing federal environmental reviews reduce housing costs?
Potentially, by 3-5% on average, though much higher in specific cases (coastal wetland development, Western projects affecting endangered species). However, the cost savings would be offset by increased flood insurance, disaster costs, and ecosystem damage in many regions.
Can states override local zoning?
Yes. States have done this in recent years (California, Minnesota, Oregon). States can pass laws that preempt local zoning authority. This is a state-level policy choice, not a federal power.
What would happen if federal wetlands protections were eliminated?
More development in wetland areas in the short term, but increased flooding risk, higher insurance costs, and reduced water quality. The short-term savings would likely be exceeded by long-term costs.
Are building codes (electrical, plumbing, etc.) federal or local?
Both. States and local governments set building codes, typically by adopting model codes like the International Building Code. The federal government sets some specific standards for certain systems, but most building code authority is state and local.