New Hampshire's housing debate may have moved out of the Legislature, but some of the most consequential decisions of the year are still ahead.

As lawmakers concluded the 2026 legislative session earlier this month, several significant housing bills landed on Governor Kelly Ayotte's desk. Among the most closely watched are House Bill 1010 (HB 1010) and House Bill 1588 (HB 1588)—two measures designed to clarify and strengthen the state's landmark commercial-zone housing reforms that were first enacted in 2025.

The Governor now faces a decision that could influence housing development across New Hampshire for years to come.

If signed, both bills would take effect on July 1, 2026, the same day the state's original commercial-zone housing law officially becomes active. Together, the measures could reshape how municipalities review multifamily housing projects, how commercial properties are redeveloped, and how much flexibility local governments retain when evaluating new residential development.

For developers, investors, property owners, real estate professionals, and local officials, the outcome could be significant.

Building on One of New Hampshire's Biggest Housing Reforms

To understand why HB 1010 and HB 1588 matter, it's important to understand the legislation passed last year.

In 2025, New Hampshire lawmakers approved one of the most ambitious housing reforms in recent state history. The law required municipalities to provide opportunities for multifamily housing development within commercially zoned districts.

The legislation was designed to address a problem that has dominated housing discussions throughout the Granite State for years: a severe shortage of available housing.

Supporters argued that commercial corridors represent one of the state's largest untapped opportunities for housing growth. Many commercial districts already contain roads, utilities, water access, sewer systems, and proximity to employment centers. By allowing housing in these areas, lawmakers hoped to create new opportunities for development without requiring large-scale expansion into undeveloped land.

The original law was celebrated by housing advocates and many developers but also raised questions among local planning boards and municipal officials.

As towns prepared for implementation, uncertainty emerged regarding exactly how projects would be reviewed and under what circumstances applications could be denied.

HB 1010 and HB 1588 were introduced largely to answer those questions.

HB 1010 Creates a Clearer Approval Process

One of the primary goals of HB 1010 is to establish clearer rules for how municipalities evaluate multifamily housing proposals in commercial zones.

The bill continues the state's requirement that municipalities allow residential development within commercially zoned areas. However, it also confirms that local planning boards retain authority to evaluate whether existing infrastructure can support a proposed project.

That distinction is important.

Supporters of housing reform have repeatedly argued that municipalities should not be able to block housing simply because local officials oppose growth. At the same time, lawmakers recognized that legitimate infrastructure concerns must still be addressed.

Under HB 1010, planning boards may deny an application under specific circumstances involving infrastructure limitations.

For example, local officials may reject a project if there are documented concerns regarding traffic impacts, water availability, or wastewater capacity.

The legislation also addresses a concern frequently raised by homeowners who rely on private wells.

Under the bill, if the owner of an abutting well can demonstrate that a proposed development would interfere with the well's ability to meet existing water demand, the planning board may deny the application.

Supporters describe the measure as an attempt to strike a balance between increasing housing supply and protecting existing property owners.

Developers generally support the bill because it provides clearer standards and greater predictability than a system where approval decisions vary significantly from one municipality to another.

HB 1588 Strengthens "By-Right" Housing Development

While HB 1010 focuses heavily on infrastructure review, HB 1588 addresses another issue that has become increasingly important in housing policy discussions: what exactly qualifies as a "by-right" development.

The bill reinforces the Legislature's intent that multifamily housing in qualifying commercial districts should be treated as a permitted use rather than a special exception.

In practical terms, that means municipalities cannot create additional zoning barriers specifically because a project contains residential units.

One of the most significant provisions states that municipalities may not impose frontage, setback, or height requirements on multifamily developments that are more restrictive than the standards already applied to commercial development in the same district.

Supporters argue that some communities could otherwise attempt to undermine the original law by creating new dimensional requirements that make projects financially or physically impossible to build.

The bill seeks to prevent that outcome.

A Potential Boost for Redevelopment Projects

Another section of HB 1588 could have substantial implications for redevelopment throughout the state.

The legislation requires municipalities to allow pre-existing nonconforming commercial structures to be converted into multifamily housing or mixed-use developments, provided the building envelope is not expanded in a way that creates additional zoning violations.

This provision has attracted particular attention from developers and commercial property owners.

Across New Hampshire, many communities contain older commercial buildings that no longer serve their original purpose. Vacant retail centers, aging office buildings, and underutilized commercial properties have become increasingly common as shopping habits and workplace trends evolve.

Supporters believe allowing these structures to be converted into housing could create new residential opportunities without requiring entirely new construction.

At a time when housing supply remains constrained and construction costs remain elevated, adaptive reuse projects are gaining attention as a potentially important part of the solution.

Attorney Fee Provision Could Change Municipal Decision-Making

Perhaps the most controversial section of HB 1588 involves legal liability.

Under the legislation, if a municipality improperly denies a multifamily housing application that should have been approved under the law, and the property owner successfully challenges that decision in court, the municipality may be required to reimburse reasonable attorney's fees.

Supporters argue this provision is necessary to ensure municipalities comply with the law.

Housing advocates contend that some communities may otherwise attempt to delay or block projects despite legislative reforms intended to expand housing opportunities.

The possibility of attorney fee reimbursement is designed to discourage arbitrary denials and encourage municipalities to conduct thorough, legally defensible reviews.

Critics, however, argue that the provision could expose communities to additional litigation risk and place pressure on local officials who are trying to balance development interests with infrastructure concerns.

The issue reflects a broader debate that has emerged throughout New Hampshire's housing reform efforts: how much authority should local governments retain when statewide housing goals are at stake?

The Larger Housing Picture

The bills arrive at a time when New Hampshire's housing market continues facing significant affordability challenges.

Recent market data shows home prices remain near record levels across much of the state. Inventory has improved modestly compared to the severe shortages seen during the pandemic housing boom, but supply remains well below what many economists consider a balanced market.

Meanwhile, housing affordability continues to be cited as a major concern by employers, economic development organizations, and municipal leaders.

Lawmakers from both parties increasingly acknowledge that housing availability has become an economic issue as much as a real estate issue.

Businesses throughout New Hampshire continue reporting difficulty attracting workers because of housing costs. Young families often struggle to find homes within their budgets. Retirees face growing challenges related to property taxes, insurance costs, and maintenance expenses.

Against that backdrop, the state's commercial-zone housing reforms are viewed by many policymakers as one of the most important long-term strategies for increasing supply.

July 1 Could Mark a Turning Point

With the Legislature now adjourned, attention has shifted entirely to Governor Ayotte.

If she signs HB 1010 and HB 1588—or allows them to become law without her signature—the measures will take effect on July 1, 2026, alongside the broader commercial-zone housing law approved last year.

That date could represent a major turning point for housing development in New Hampshire.

Supporters believe the laws will provide clearer rules, encourage housing production, and reduce unnecessary barriers to development.

Critics remain concerned about local control, infrastructure capacity, and the long-term impacts of state-directed zoning reforms.

Regardless of where one stands on the issue, there is little debate about the stakes.

As New Hampshire continues searching for solutions to its housing shortage, the decisions made this summer could influence where housing gets built, how quickly projects move forward, and how communities across the state grow for years to come.