The Problem: Vacancy Is Not Free

A vacant or deteriorating residential property is not a neutral asset waiting for a buyer. It is an ongoing expense borne by the public, and in St. Louis the bill has been quantified. The City has estimated the fiscal toll of vacancy on its operating budget at nearly $66 million in a single year, spread across what is today roughly 24,000 vacant lots and buildings, about 9,000 of them structures. The City spends over $5 million annually just maintaining vacant lots, demolition of a condemned building costs five figures per structure, and a recent city report identified approximately $21 million in vacancy-related fees owed on 14,000 properties. These costs are a flow, not a one-time charge, and deterioration is nonlinear: a repairable roof this year becomes a structural failure in two, pushing rehabilitation costs past feasibility and toward demolition.

The Barrier: The Appraisal Gap

In many underserved neighborhoods across St. Louis City and County, the cost to rehabilitate a home exceeds its post-rehabilitation appraised value. This appraisal gap, a direct legacy of redlining, is the single greatest obstacle keeping private capital out of these blocks; majority-Black census tracts in St. Louis carry roughly nine times the vacancy of majority-white tracts. Lenders cannot underwrite loans against value the market does not yet recognize, and low- to moderate-income (LMI) owners cannot absorb the shortfall themselves. The result is a market failure: willing owners, viable structures, and no financing path.

The Intervention

Mound City Fund provides grants of up to 20% of qualified redevelopment costs to LMI owner-occupants rehabilitating residential property in targeted neighborhoods. The grant functions as a donation-funded analogue to a public economic incentive program: it closes part of the appraisal gap, reduces the owner's debt burden and out-of-pocket exposure, and in partnership with community lenders, serves as the credit enhancement that converts a declined loan into an approved one. Eligibility criteria prioritize projects that would not proceed without the grant, ensuring each dollar produces genuinely additional investment.

Why the Math Works

Leverage. At up to a 20% reimbursement rate, every donated dollar mobilizes an estimated four to five dollars of owner and lender investment into the housing stock. Donor capital is the smallest slice of each project and the decisive one.

Avoided public cost. The grant is compared not against zero but against the continuing cost of vacancy: emergency response, enforcement, foregone taxes, depressed neighboring values, maintenance, and demolition. A grant that returns a property to occupancy and the tax rolls costs the community far less than the status quo.

The value of acting now. Even where a rehabilitation might eventually occur without assistance, acceleration alone carries real value. Advancing a project by a single year avoids a full year of vacancy costs, arrests deterioration before rehab costs escalate, and interrupts the contagion by which one visible vacant building suppresses neighboring investment and seeds the next vacancy. Acceleration is the guaranteed floor of the Fund's impact; in most cases, the grant is the difference between a project happening and not happening at all.

Owner wealth. For the LMI owner, the grant reduces loan principal and monthly debt service, lowering the likelihood of delinquency and strengthening the household balance sheet. It converts a property from a liability into an appreciating, insurable, borrowable asset, the primary vehicle of family wealth building.

The Bottom Line

Every grant purchases, at minimum, a year or more of avoided public costs and arrested deterioration. In the typical case, it purchases an entire rehabilitation that would not otherwise occur: a restored home, a stabilized block, a taxpaying property, a family building equity. The community already pays for vacancy, continuously and measurably. The only question is whether it pays for decline or invests, at a fraction of the cost, in renewal.

The National Landscape: This Model Works

Closing the gap between rehabilitation cost and appraised value, known as appraisal gap financing, is a recognized community development strategy used by cities, nonprofits, and banks across the country to break the cycle of deteriorating housing stock and disinvestment. Detroit is the proof of concept. Its Rehabbed & Ready program, a partnership between the Rocket Community Fund and the Detroit Land Bank Authority launched in 2015, uses philanthropic dollars to fully renovate vacant land bank homes and sell them at market value, deliberately absorbing the loss to establish appraisal comparables that unlock financing for the whole neighborhood. It has produced more than one hundred renovated, owner-occupied homes, the loss it absorbs has fallen from roughly 31% in year one to about 7% as values stabilized, and it inspired proposed federal legislation, the Neighborhood Homes Investment Act. Detroit's companion vehicle, the Detroit Home Mortgage Initiative, pairs banks, foundations, and a CDFI to lend up to $75,000 above appraised value for purchase and rehab. Together they demonstrate the two levers philanthropy can pull: subsidize the property or empower the owner. Both work. Neither is at scale anywhere.

The St. Louis Landscape: Tools Exist, But Every One Stops Short

St. Louis has imported the Detroit lending model. The Gateway Neighborhood Fund, launched with the City, SLDC, five rotating partner banks, and Justine Petersen's CDFI, Great Rivers Community Capital, pairs a conventional first mortgage with a second mortgage of up to $75,000 above appraised value across an initial eight North City neighborhoods. It is a genuine breakthrough, deliberately small: a roughly $2 million pool sized for about 60 second mortgages over three years, with both mortgages repayable debt on the borrower.

The City's Prop NS program, approved by voters in 2017, invests public bond funds to structurally stabilize vacant, city-owned residential buildings and sell them to rehabbers. Its results reveal the market's missing layer with unusual clarity: roughly 190 buildings stabilized and over 110 sold, yet after five years only about a dozen fully rehabilitated. The program's own director identified the bottleneck plainly: the biggest challenge is access to financing, because these houses need significant funds for rehab beyond the purchase price. The City recently raised its stabilization spending caps, which will grow the pipeline of stabilized buildings awaiting exactly the rehab capital that does not yet exist.

The remaining tools serve adjacent needs. The Healthy Home Repair Program funds health and safety repairs for LMI city homeowners, with strict eligibility and a substantial waitlist. Rebuilding Together St. Louis and Mission: St. Louis perform charitable repairs for owners, particularly the elderly and disabled, who cannot undertake work themselves. Invest STL, the region's neighborhood investment intermediary, has directed more than $10 million toward legacy Black neighborhoods, primarily through community organizations rather than individual owner-rehabbers.

Where Mound City Fund Fits: The Missing Layer

Survey the toolbox and a pattern emerges: every existing St. Louis mechanism is a loan the owner must repay, a repair program restricted to health and safety items, a stabilization subsidy confined to city-owned inventory, or charity performed on behalf of owners who cannot act. No program in the region provides what Mound City Fund proposes: a donation-funded grant, awarded directly to an LMI homeowner driving their own project, covering a meaningful share of redevelopment costs. That grant layer does not duplicate existing efforts; it is the missing input that makes them work. A Mound City Fund grant commitment can serve as the equity injection and credit enhancement that turns a declined loan application into an approved one, shrinks the second mortgage a borrower must carry, and supplies the rehab capital Prop NS buyers cannot obtain, converting stabilized shells into occupied homes. The natural partners, Justine Petersen, SLDC, Invest STL, and the community banks, are already at the table. The ecosystem lacks neither infrastructure, intent, nor pipeline; it lacks the philanthropic grant layer at the bottom of the capital stack. Mound City Fund is built to be that layer, and after the May 2025 tornado, the need has never been more urgent.

Prepared by Mound City Fund. This document is provided for general information; it is not legal, tax, or financial advice.