May is Affordable Housing Month — a time to recognize the people, programs, and projects that make it possible for working families, seniors, veterans, and individuals with disabilities to have a safe, stable place to call home. At Natura Architectural Consulting, we work in this space every day. And every day, we are reminded of why it matters.

#WeLoveBuildings. But more than that, we love what buildings do for people.

The housing crisis isn’t abstract

The numbers are hard to ignore. Nearly a quarter of all renters in the United States are severely cost-burdened — spending more than half their income on housing. For every 100 extremely low-income renters in this country, there are only about 35 affordable units available. That’s not a rounding error. That’s a structural failure playing out in real time, in every state, in every market, at every income level.

And it isn’t just a problem for the lowest earners. Rents have outpaced wage growth across most of the country. In high-cost coastal markets like Los Angeles, the affordability gap extends deep into the middle class — teachers, nurses, first responders, and service workers who don’t qualify for subsidized housing but can’t afford market rate either. In high-growth Sun Belt markets like Austin, a surge of new supply has softened rents in some segments while doing almost nothing for households at the lowest income levels. Recent analysis from Walker & Dunlop illustrates this dynamic well — two cities, two very different supply stories, and the same conclusion: the crisis persists regardless of market conditions.

The private market, on its own, cannot close the affordability gap. It never could. The math doesn’t work without intervention.

Affordable housing isn’t a niche issue. It affects the communities where we all live and work. When people can’t afford to live near where they work, entire regional economies feel the strain — in longer commutes, higher turnover, reduced economic mobility, and diminished quality of life across the board. Stable housing isn’t a social program. It’s infrastructure.

How affordable housing actually gets built

Most people outside the industry don’t know how affordable housing gets financed. It’s complicated, and that complexity is part of why the affordability gap persists even when the political will to address it exists.

The primary federal mechanism is the Low-Income Housing Tax Credit — LIHTC. Created by Congress in 1986, LIHTC allocates tax credits to developers who agree to keep rents affordable for income-qualified residents, typically for a minimum of 30 years. Those credits are sold to investors — most often large financial institutions — generating the equity capital that makes the deals financially viable.

It’s a public-private partnership model, and when it works, it works remarkably well. Since its creation, LIHTC has financed the construction or rehabilitation of more than three million affordable housing units nationwide. It remains the single most powerful tool for producing affordable housing in America.

But LIHTC deals are genuinely complex. A single transaction can involve layered financing from a dozen sources — federal tax credits, state housing finance agency allocations, soft loans from HOME funds or Community Development Block Grant (CDBG) funds, historic tax credits, local government contributions, and conventional debt. Each funding source comes with its own requirements, its own timeline, and its own compliance obligations. The cast of stakeholders includes developers, equity syndicators, construction and permanent lenders, state housing agencies, local governments, and sometimes multiple layers of regulatory oversight.

Every party in that transaction needs to know that the physical asset at the center of the deal is sound. That the building being financed is what it’s represented to be. That the construction being funded is actually happening. That the property will serve its residents well not just at lease-up, but for the full duration of a 30-year regulatory agreement.

That’s where independent technical expertise comes in.

The stakes are real — for everyone in the deal

When a LIHTC transaction closes and construction begins, the clock starts. Equity pay-ins are tied to construction milestones. Loan covenants have teeth. State housing finance agencies are monitoring compliance. And at the end of the process, real people will move into the units that were built.

The technical due diligence that happens before and during construction isn’t bureaucratic box-checking. It exists because the consequences of getting it wrong are serious — for lenders, for investors, for developers, and most of all for residents.

Deferred maintenance that wasn’t identified during a property condition assessment becomes a capital need that erodes operating budgets for years. A construction defect that goes undetected during monitoring becomes a liability — and a hardship for the families living in that building. An environmental condition that wasn’t fully understood before closing can unwind an entire transaction.

The physical integrity of affordable housing matters just as much as the financial integrity of the deal. You can’t separate them. A well-structured transaction built on a poorly maintained or deficiently constructed asset isn’t a success — it’s a slow-moving problem.

What the work actually looks like

Property Condition Assessments evaluate the physical state of an existing property before a loan closes — identifying deferred maintenance, estimating replacement reserves, and flagging conditions that could affect the transaction. Construction monitoring tracks progress on new construction and rehabilitation projects, verifying that draw requests are supported by actual work in place and that the project being built matches what was underwritten.

Property Resilience Assessments examine how a property will hold up against climate-related risks over the life of a long-term regulatory agreement — an increasingly important consideration for lenders and investors underwriting 30-year commitments. And for deals involving existing contracts and construction documentation, understanding the implications of standard industry agreements matters too — something we explored in our post on what LIHTC lenders should know about the AIA Contract.

It’s detailed, technical, sometimes unglamorous work. But it matters at every stage of the deal, and it matters long after the ribbon is cut.

We’ve worked on affordable housing projects across the country — small rural developments serving agricultural communities, large urban mixed-income properties, historic buildings being given new life as affordable housing, and everything in between. Every one of them represents families who needed a stable place to land.

Affordable Housing Month and what it means to us

We don’t need a designated month to care about this work. But Affordable Housing Month is a useful moment to say it out loud — and to recognize the full ecosystem of people doing hard, important work to keep affordable housing moving forward.

That includes housing finance professionals structuring complex, layered deals under real-time pressure. Developers navigating years of regulatory approvals to get a project to closing. Construction teams building under tight budgets and tighter timelines. Property managers keeping aging buildings functional and habitable for residents who depend on them. State housing agency staff working through enormous deal volumes with limited resources. And the advocates, researchers, and policymakers who keep pushing for the systemic changes this problem actually requires.

The National Council of State Housing Agencies tracks LIHTC activity and advocacy at the federal level — and the scale of the program’s reach makes clear just how many communities depend on it continuing to function well.

NAC is proud to be part of that ecosystem — not at the center of it, but as one piece of a much larger effort. We bring technical rigor and genuine care to every project we touch, because the buildings we assess and monitor aren’t just assets on a balance sheet. They’re homes.

#WeLoveBuildings. And we believe everyone deserves a good home.