Nuke Your City Codes? What It Means

“Nuke your city codes” means to delete or completely rewrite a city’s zoning ordinances and building codes, usually to eliminate restrictive land-use rules. This article explains what that entails, why some people advocate for it, and what the real-world consequences and alternatives are.

Formula

The calculator estimates the effort and time required to rewrite a city’s zoning code from scratch. The formula used is:

Effort (person-years) = (Code age in years × 0.5) + (Number of zoning districts × 0.2)

Where:

• Code age – years since the current code was last comprehensively updated (default 30 years).
• Number of zoning districts – count of distinct zoning categories in the code (default 20).
• Effort – estimated person-years of professional planning and legal work needed.

The time estimate multiplies effort by 3 to convert person-years to months, assuming a team of several planners working concurrently.

Worked Example

Using the default values: a city with a 30-year-old code and 20 zoning districts.

1. Effort = (30 × 0.5) + (20 × 0.2) = 15 + 4 = 19 person-years.
2. Time = 19 × 3 = 57 months (about 4.75 years).

The calculator shows 19 person-years and 57 months. This matches the formula output.

What Does “Nuke Your City Codes” Actually Mean?

The phrase “nuke your city codes” is a provocative shorthand used in urban planning debates. It refers to the idea of discarding an entire municipal code—usually zoning, building, and land-use regulations—and starting over with a simpler, more flexible framework. Proponents argue that many city codes have become so complex and restrictive that they drive up housing costs, limit density, and perpetuate segregation. Opponents warn that a blank slate could create chaos, remove important protections, and lead to unintended consequences.

Why Do People Want to Nuke Codes?

Several factors motivate the call to eliminate and rewrite city codes:

• Housing affordability – Restrictive zoning (e.g., single-family-only districts) limits supply and inflates prices.
• Complexity – Some codes are thousands of pages long, making compliance difficult and expensive.
• Outdated assumptions – Many codes were written decades ago and don’t account for modern needs like mixed-use development or accessory dwelling units.
• Equity concerns – Historical zoning was often used to exclude low-income and minority communities.
• Administrative burden – Permit processes can take months or years, discouraging new construction.

How Would a Code Rewrite Work?

A full rewrite typically involves several stages:

1. Inventory – Catalog all existing regulations and identify which are legally required (e.g., state or federal mandates) versus locally chosen.
2. Public input – Hold hearings, workshops, and online surveys to gather community priorities.
3. Drafting – Planners and lawyers write new code language, often using a form-based code or a simplified use-based system.
4. Legal review – Ensure compliance with state law, environmental regulations, and constitutional limits on property regulation.
5. Adoption – City council or board votes on the new code, often with amendments.
6. Implementation – Train staff, update software, and phase in changes over months or years.

Common Problems and Misconceptions

One common misconception is that “nuking” means removing all regulations. In reality, even the most radical rewrites keep some rules—like building safety standards and environmental protections. Another issue is that a rewrite doesn’t automatically change outcomes; enforcement and political will matter. Also, a blank slate can create uncertainty: developers may wait to see how the new code is interpreted, slowing construction in the short term. Finally, legal challenges can arise from property owners who feel their rights were altered.

Alternatives to a Full Rewrite

Many cities opt for incremental changes instead of a full rewrite:

• Zoning amendments – Change specific districts or uses (e.g., allow duplexes everywhere).
• Form-based codes – Focus on building shape and streetscape rather than use.
• Inclusionary zoning – Require a percentage of affordable units in new developments.
• Streamlined permitting – Reduce review times for certain projects.
• Overlay districts – Add special rules on top of existing zones for specific areas.

Costs and Timeframe

A full code rewrite is expensive and slow. Based on the calculator above, a typical city might spend 19 person-years of professional time and take nearly five years to complete. Costs vary widely, but a comprehensive rewrite can easily run into the millions of dollars when including staff time, consultants, and public engagement. Incremental changes are cheaper and faster, but may not solve systemic problems.

Safety and Legal Considerations

Any code rewrite must preserve essential safety regulations: building structural standards, fire codes, electrical and plumbing requirements, and environmental protections. These are often mandated by state or federal law and cannot simply be discarded. Local governments also face legal constraints—such as the need to comply with fair housing laws and environmental review processes. A responsible rewrite will keep these protections while simplifying the rest.

Frequently Asked Questions

Does “nuking” mean no rules at all?

No. Even the most aggressive rewrites keep safety codes and some land-use rules. The goal is usually to remove unnecessary complexity, not to eliminate all regulation.

Who decides what goes in the new code?

Elected officials (city council, planning commission) make the final decision, but they rely on professional planners and public input. State law may also impose requirements.

How long does a rewrite take?

Based on the calculator, a typical rewrite takes about 4-5 years from start to adoption, but some cities have taken over a decade. The timeframe depends on the city’s size, political climate, and scope of changes.

Will a rewrite lower housing prices?

It can help by allowing more supply, but it’s not guaranteed. Other factors like construction costs, interest rates, and land prices also play a role. A rewrite alone rarely solves affordability.

What’s the first step a city should take?

Most experts recommend a thorough audit of the existing code to identify what’s actually causing problems. This is less disruptive than a full rewrite and can reveal quick wins.

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in t | Current code age (years) | years | 30 | 0 | 200
in d | Number of zoning districts | count | 20 | 1 | 500
out pace | Rewrite effort (person-years) | person-years | (t * 0.5) + (d * 0.2) | 1
out speed | Estimated time (months) | months | ((t * 0.5) + (d * 0.2)) * 3 | 1