Affordable Housing Is a Financing Problem Before It Is a Building Problem

Published at May 4, 2026 ... views

#RealEstate#AffordableHousing#MultifamilyHousing#TaxCredits#CapitalStack#DensityBonus#HousingPolicy#CaliforniaHousing#TransitPriorityArea

Kelly Moncrief made a point I hadn't heard framed this directly before: when you switch from thinking about market-rate multifamily to affordable housing, you have to flip the entire economic logic on its head.

The development process looks the same.

The building code is the same.

The construction crews are often the same.

But the revenue side is fundamentally restricted, which means the economics don't work without subsidy, which means a completely different kind of financing has to assemble the project.

Same mid-rise multifamily building photographed twice side by side, left labeled Market-rate $3,000 per month, right labeled Affordable 60% AMI $1,800 per month — same construction, different revenue, editorial illustration

Here's the puzzle worth sitting with: the California Housing Partnership's 2024 Needs Report found that California is funding only 12% of the affordable housing it needs — despite years of pro-housing legislation, expanded density bonuses, and dozens of active subsidy programs. Developers willing to build affordable housing exist. Political support, at least nominally, exists. So what's actually blocking production? The easy explanations — bureaucracy, NIMBYs, not enough developers — don't match the mechanics.

Affordable housing development isn't slow because of bureaucracy. It's slow because the financing model requires assembling multiple subsidy sources that each have their own competitive processes, their own timelines, and their own requirements — and a project cannot close until every single layer is committed. That process takes years. Not months.

Understanding this changes what you'd actually advocate for if you wanted more affordable housing built. It explains why requirements that sound good in a policy brief often produce fewer units than the people writing the brief expected. And it gives you two questions that cut through any housing proposal: Does this add a layer to the financing stack, or reduce one? Does it add a competitive gate, or remove one?

In the previous post I worked through how the feasibility phase functions for market-rate development. This post is about what changes — and how dramatically — when the goal is affordable housing. It's also about the density tools California has been building that are changing the math for both product types.

The revenue gap that makes affordable not pencil

Start with the most basic problem.

When you build market-rate apartments, rents are set by the market. You research the submarket, identify your target tenant, and set rent assumptions that have to survive scrutiny from lenders and equity partners. If the rents don't support the project cost, you don't build.

When you build affordable housing, rents are set by regulation. "Affordable" means restricted to households earning a certain percentage of Area Median Income — typically 30%, 50%, 60%, or 80% AMI. Those income levels translate into maximum allowable rents, which are published by the housing authority and recorded on the property title for 55 years or more.

Close-up photo of a recorded affordability covenant document page, redacted, 55-year deed restriction visible, official property title recording

In San Diego, a household at 60% AMI is typically eligible for a rent of roughly $1,800 per month for a one-bedroom. Market rate for that same unit in a comparable building: $2,800 to $3,200.

The costs to build both units are essentially the same. One produces roughly 55-60% of the revenue the other does. The pro forma math simply doesn't close.

Editorial illustration of a single income statement bisected vertically, left half balanced market-rate NOI in green, right half showing a yawning red gap labeled subsidy required, split pro forma visualization

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This isn't a question of developer margins or land speculation. Even the most efficient affordable developer in San Diego cannot build deed-restricted housing and make the numbers work with conventional financing. The gap has to be filled from somewhere.

The conventional objection is: why not just mandate higher inclusionary percentages or stronger affordability requirements? Force developers to build more affordable units.

The economics show why mandates alone can't solve it. Requiring units that don't pencil doesn't produce units — it produces in-lieu fee payments and developers walking away from sites. If the subsidy to close the gap doesn't exist, the requirement exists on paper only. The units don't get built. The policy addresses the symptom (not enough affordable units) while leaving the cause (a financing gap the market cannot close) untouched.

Lasagna financing: how affordable projects actually close

The industry name for affordable housing capital structure is "lasagna financing." The name is accurate.

A market-rate development typically has two or three layers: a construction loan, equity, maybe a mezzanine tranche if the deal is complex.

An affordable project might have seven or eight layers: a conventional construction loan, a state soft loan, a county contribution, a city HOME allocation, a federal Home Loan Bank grant, Low Income Housing Tax Credit equity from a syndicator, and a deferred developer fee rolled into the project.

Stylized cross-section of a lasagna where each pasta layer is labeled with a funding source — Construction Loan, State Soft Loan, County, City HOME, FHLB AHP, LIHTC Equity, Deferred Fee — hand-illustrated in warm tones, lasagna financing visualization

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Each of those layers has its own application, its own scoring criteria, its own approval authority, and its own timeline. Some are competitive — you apply once a year and hear back in six months. Some trigger additional requirements. Some require other layers to be committed before they'll commit.

A developer pursuing a 100-unit affordable project is running multiple financing campaigns simultaneously, each with different clocks, while making sure the project design satisfies all of them at once.

Documentary-style photo of an affordable housing developer at a kitchen table surrounded by binders labeled with different funding programs, wall calendar with multiple application deadlines circled in red, juggling multiple financing campaigns

That process is why affordable housing development takes years before construction starts. It's not the building. It's the years spent trying to get every layer to align at the same moment.

What the lasagna structure also creates is at-risk development. A developer spending money on permits, drawings, and consultant fees before any funding is guaranteed. A repositioning project in Linda Vista, San Diego — 40 units across family, senior, and permanent supportive housing — illustrates this: permits and pre-development costs were committed before 9% LIHTC, HCD loans, city and county contributions, and MHP funding were each individually confirmed. Any one of those layers not closing would have left sunk pre-development costs and no project. The years assembling the stack aren't just slow. They're years of capital bet on a financing assembly that might never close.

Site photo of the Linda Vista repositioning project in San Diego, a 40-unit affordable housing community mixing family, senior, and permanent supportive housing

The prevailing wage loop

Here's one of the stranger dynamics in affordable housing financing: some of the subsidies that help projects get built also make projects more expensive to build.

Several state funding programs — including some of the most accessible soft loan programs — trigger prevailing wage requirements. Prevailing wage means paying union-equivalent rates to all construction workers on the project, which adds roughly 20-30% to labor costs.

Wide-angle photo of an affordable housing project under construction, framers and finishers visible on a multi-story wood frame, jobsite signage in frame, construction labor on an affordable housing site

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If hard costs on a 90-unit project run $18 million, a 25% labor premium adds $1.5 to $2 million in cost. More cost means more subsidy required. More subsidy required means competing harder for a limited pool of funding.

This isn't an argument against prevailing wage — that's a policy debate with legitimate values on both sides. It's a description of the arithmetic. In a system where affordable housing is already hard to finance, adding cost makes it harder. Developers navigate this by treating the prevailing wage decision as a financing decision: take the state money and accept the constraint, or try to build without it and accept a larger gap elsewhere.

A few things I'm taking away

This is the diagnosis side of affordable housing — the why, not the how. The companion post covers the LIHTC mechanism and California's density tools that actually close the financing gap.

  • Affordable housing doesn't pencil under conventional financing because restricted rents produce roughly 55–60% of what market rents would at the same cost to build. The construction is identical; the revenue side is structurally different.
  • Mandating more affordability without funding to close the gap produces in-lieu fees and developer walkways, not units. Policy that doesn't address the financing arithmetic addresses the symptom, not the cause.
  • "Lasagna financing" is the industry term for the seven or eight subsidy layers that have to align before a project can close. Each layer has its own application, scoring criteria, approval authority, and timeline. The years that affordable projects spend pre-construction are spent assembling that stack.
  • Pre-development is at-risk. A developer often spends real money on permits, drawings, and consultant fees before any single layer of funding is guaranteed — because if you don't have those in hand, you can't finalize the application that funds them.
  • Some state subsidies trigger requirements, adding 20–30% to labor costs. The Bipartisan Policy Center estimates the federal Davis-Bacon premium at 10–20% on covered projects. Either way, the subsidy designed to close the gap reopens part of that gap by raising costs, increasing the subsidy required.
  • The architecture wasn't designed to be slow. It became slow through accretion — each program solving one problem while adding one more layer to the stack. The Terner Center estimates each additional public funding source beyond tax credits adds roughly four months and $20,460 per unit.
  • The two questions worth keeping for any housing-policy proposal: Does this add a layer to the financing stack, or reduce one? Does it add a competitive gate, or remove one?

Residents moving into a completed affordable housing building, balconies populated, Now Leasing - Income Restricted sign visible at entrance, hopeful editorial photo

What this gets you ready for

The diagnosis above explains why affordable housing is hard to finance and slow to close. The next post in this pair — tax credits and density bonuses are how affordable housing actually closes — covers the mechanism that fixes the math: the LIHTC syndication that converts federal tax liability into project equity, California's density bonus and Transit Priority Area programs, and a real Golden Hill case study that puts the tools together.

The irony of the affordable housing financing system isn't that there aren't enough developers willing to build it. There are. The irony is that the system designed to make affordable housing possible — tax credits, subsidy programs, density bonuses, layered financing — is built entirely around scarcity. Every program is competitive. Every award has conditions that add cost somewhere else. Every timeline is long.

The building part is the same as any other apartment. The financing part is a multi-year coordination problem with no single authority to resolve it.

This post is the first of two on affordable housing in my ongoing series — Real Estate Development. The companion post covers LIHTC, density bonuses, and the Golden Hill Broadway case study that puts the tools together. Earlier posts cover multifamily feasibility for market-rate development and absorption and developer's cap rate.

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