The Housing for the 21st Century Act Could Be a Huge Deal for Multifamily Investors

Very few things can bring different political sides together quickly — but the growing housing crisis and homeless encampments across U.S. cities seem to be one of them. That’s why the Housing for the 21st Century Act recently passed the U.S. House of Representatives with a massive 390-9 vote and is now moving to the Senate.

Inside the 200-page bill, there are several proposals that could seriously impact the real estate industry, especially for multifamily property investors. One of the biggest highlights is the increase in loan limits for smaller multifamily properties, which could give investors more buying power and potentially bigger returns.

What makes this bill even more interesting is the bipartisan support behind it. Representatives French Hill and Maxine Waters — who come from very different political backgrounds — worked together to make sure the bill included ideas from both parties. Because of that, many groups in the housing and construction industries are welcoming the proposal positively.

The National Association of Home Builders (NAHB), for example, praised the bill for helping reduce barriers to increasing housing supply in the U.S.

At the same time, the National Association of Realtors (NAR) pointed out how urgent the housing situation has become. According to the organization, the U.S. is currently short by around 5 million homes, while the average age of first-time homebuyers has climbed to 40 years old.

In short, the pressure to increase housing supply and improve affordability is becoming impossible to ignore — and this new legislation could become a major turning point for both developers and investors.

Here are some of the key initiatives in the bill that could directly impact real estate investors.

Modernizing Building Codes: The Single-Stair Reform

One of the most interesting parts of the bill for small multifamily developers is Section 103, which focuses on something called single-stair apartments, also known as point-access block buildings.

Right now, many cities in the U.S. require apartment buildings to have two staircases for safety reasons. While that rule was created with good intentions, it also makes multifamily projects more expensive and harder to build — especially on smaller urban lots.

Through this new bill, HUD would be asked to create national guidelines and best practices for single-stair multifamily buildings up to five stories tall.

The idea is to make apartment development more flexible and efficient, similar to many housing designs already common in Europe. Interestingly, states like California are already exploring this concept as part of their housing solutions.

The bill also includes pilot programs that would fund real-world projects to test whether these newer building layouts can remain safe and effective.

If successful, this could open the door for smaller, more affordable apartment designs that are easier to develop in crowded urban areas — something that could become a major opportunity for multifamily investors moving forward.

Streamlining Environmental Reviews

Another major change in the bill focuses on speeding up environmental review processes, which have often been criticized for slowing down housing development in the U.S.

For years, the federal National Environmental Policy Act (NEPA) has been seen by many developers as too expensive, complicated, and time-consuming — especially for smaller-scale housing projects.

This new proposal takes a similar approach to reforms already introduced by California Governor Gavin Newsom, where efforts were made to reduce delays and accelerate housing construction.

One of the key changes is the expansion of something called “categorical exclusions.” In simple terms, certain smaller housing developments would no longer need to go through full environmental review processes.

That includes infill projects and residential building renovations, which are usually smaller developments built within already developed urban areas.

The goal is pretty straightforward: reduce unnecessary bureaucracy, speed up construction timelines, and lower development costs for smaller multifamily projects.

For investors and developers, this could mean faster project approvals, lower costs per unit, and more opportunities to build housing in high-demand urban locations.

Encouraging “Missing Middle” Housing

The bill also pushes local governments to support what’s often called “missing middle” housing — smaller multifamily properties like duplexes, triplexes, and quadplexes that sit somewhere between single-family homes and large apartment buildings.

Through Section 102, the Act encourages cities to make zoning rules more flexible and development-friendly for these types of properties.

One of the biggest ideas is something called “by-right development.” Basically, certain multifamily projects could be approved automatically without going through long and complicated permitting processes.

That means developers could build duplexes, triplexes, or quadplexes much faster in areas where zoning already allows them.

The bill also introduces funding for “pattern books,” which are collections of preapproved architectural designs for projects like ADUs, duplexes, and townhouses.

So instead of starting from scratch every time, builders can simply choose an approved design and move through the permit process much quicker.

For multifamily investors and small developers, this could significantly reduce development delays, lower planning costs, and make smaller housing projects far more attractive financially.

Higher FHA Loan Limits and Easier Financing Access

Another big win for multifamily investors in the bill is the update to FHA loan limits under Section 106.

Basically, the government wants to adjust federal loan limits to better match today’s construction costs, which have increased significantly over the past few years.

For developers working on small and mid-sized multifamily projects, this could make it much easier to secure federal-backed financing and move projects forward without facing as many funding limitations.

The bill also brings more flexibility to the HOME Investment Partnerships Program. Under the new proposal, program funds could now be used not only for housing itself, but also for supporting infrastructure like water systems and sewer access tied to new housing developments.

There’s also a practical change that could save landlords and developers a lot of time: streamlined inspections.

For properties using multiple federal housing programs — such as LIHTC and Section 8 — a single successful inspection could automatically satisfy Housing Choice Voucher (HCV) inspection requirements as well.

In other words, less paperwork, fewer repeated inspections, and a much smoother administrative process for smaller property owners and multifamily operators.

Why This Could Be Great News for Small Investors

Even though many parts of the bill are designed for developers, there are also some huge advantages for smaller investors and first-time landlords.

One of the biggest opportunities comes from the increased FHA loan limits for smaller multifamily properties. This could make it easier for beginner investors to start building wealth through house hacking and rental income.

For anyone unfamiliar with the strategy, house hacking basically means buying a small multifamily property, living in one unit, and renting out the others to help cover the mortgage.

The reason FHA loans are popular for this is because buyers can qualify with a down payment as low as 3.5%, which lowers the barrier to entering real estate investing.

There is one important rule, though: the buyer has to live in one of the units for at least 12 months.

After that first year, the owner can move out, rent the entire property, and potentially repeat the process with another investment property.

Technically, FHA borrowers are only allowed to have one FHA loan at a time unless the other property is located in a different state. But many investors work around this by refinancing the first property into a conventional mortgage before applying for another FHA loan.

For newer investors, this strategy can become a relatively affordable way to slowly build a rental portfolio over time without needing massive upfront capital.