Nashville STRs Are Losing Money on Paper Every Month - Here's the Exact Underwriting Screen We Run Before a Client Makes an Offer

The projection your management company sent you is not underwriting. It's a sales document.

That's not an opinion. That's what we see every time a new client walks in with a spreadsheet from an AirDNA report or a property manager promising $90K a year on a $650K house in East Nashville. The numbers look good. The deal does not survive contact with reality.

Here's what's actually happening in Nashville's STR market right now, and the exact screen we run before we let a client write an offer.

Why Nashville STRs Are Underperforming Projections in 2026

Occupancy compression is real. The Nashville metro added thousands of permitted STR units between 2021 and 2024. Supply caught up. In the Gulch, East Nashville, and The Nations corridors, where most investor interest concentrates, average occupancy rates have normalized in the low-to-mid 50s. Projections built on 2022 performance data assume 68-72% occupancy. Those numbers no longer exist in most submarkets.

Rate normalization followed the same curve. Average daily rates peaked during the post-COVID travel surge and have pulled back 15-25% across Nashville's core STR zones. A property projecting $285/night is more likely averaging $210-230 once seasonality, last-minute discounting, and platform fees are factored in.

Expense creep is the quietest killer. Property management fees run 20-30% of gross revenue. Add platform fees, cleaning costs (which scale with every turnover), maintenance, utilities, insurance riders, and the annual furniture replacement budget, and you're looking at an expense-to-revenue ratio of 45-60% before debt service. Most projections show 25-35%. The gap is where deals go to die.

The Activity Theater of Trusting Projections

There's a term we use internally: activity theater. It's what happens when an investor looks busy doing research, pulls up AirDNA comps, reads a management company's pitch deck, and convinces themselves they've done diligence. They haven't. They've just consumed optimism formatted as data.

AirDNA aggregates market-level data. It does not know what the previous owner actually collected, what the property's permit situation is, or whether the HOA quietly added STR restrictions in 2024. Management company estimates are built to win the listing, not to protect your capital.

"Every investor who got burned in Nashville's STR market made the same mistake. They trusted a projection over the actuals. The projection is what someone wants the property to earn. The actuals are what it earns." Jack Costigan

The correction for activity theater is simple. Ask for the trailing 12-month actual revenue from the current owner. Verify it against platform payout statements. If the seller won't produce them, that's your answer.

The Costigan Group's STR Underwriting Screen

We run every potential STR acquisition through the same checklist before a client makes an offer. No exceptions. Here's what's on it:

1. Trailing 12-Month Actuals from the Current Owner

We request platform payout statements, not listing estimates. Airbnb and VRBO both generate downloadable payout histories. If the property is currently operating as an STR, this data exists. A seller who can't or won't produce it has told you everything you need to know.

2. Permit Status Verification

Nashville's Metro Government caps STR permits by zone type. Owner-occupied (Type 1) and non-owner-occupied (Type 2) permits have different requirements, different caps, and different renewal conditions. We verify permit status directly through Metro's database before any offer is written. A property operating without a current, transferable permit is not an STR investment. It's a liability.

3. HOA and Deed Restriction Review

Several of Nashville's most desirable STR corridors sit in neighborhoods where HOAs have passed STR restrictions in the last two years. We pull CC&Rs and any amendment history before diligence. This is a day-one check, not a closing-week discovery.

4. Expense-to-Revenue Ratio Stress Test

We rebuild the expense stack from scratch. Management fees at the high end of the market rate. Cleaning per turnover multiplied by realistic occupancy. Platform fees at 3%. Utilities, insurance, maintenance reserve at 1.5% of property value annually. Furniture replacement amortized over a 5-year cycle. We do not use the seller's expense figures.

5. Furniture and Setup Costs as Capital, Not Revenue

A property that needs a full STR setup costs $25,000-$50,000 to furnish at a quality level that generates competitive reviews. That's capital. It needs to be modeled against your return calculation, not buried in the enthusiasm of gross revenue projections.

6. DSCR at Conservative Debt Terms

Debt Service Coverage Ratio is where most STR deals fall apart. We model DSCR using actual net operating income, not gross revenue. A property generating $61K gross with $23K in expenses before debt service has $38K to cover the mortgage. At current rates on a $650K purchase, that's a coverage ratio most lenders won't touch on an investment property without significant down payment. This conversation needs to happen before the offer, not after the inspection.

7. Seasonality Curve and Booking Velocity

Nashville has clear high and low seasons. We look at month-by-month revenue distribution in the actuals to understand whether a property's annual revenue is concentrated in 4-5 months. A property making 60% of its gross revenue in May, June, September, and October carries meaningful risk if any of those windows underperform.

What Conservative Underwriting Actually Looks Like

Conservative underwriting is not pessimism. It's the difference between an investment and a bet.

Here's a real example. A client came to us last year with a property in East Nashville. The management company had projected $95,000 in annual gross revenue. The listing was priced at $649,000. The deal looked workable on paper.

We pulled the actuals. The property had generated $61,000 gross in the trailing 12 months. After rebuilding the expense stack, net operating income was $38,000. At current financing terms, the DSCR didn't support the purchase price at any reasonable down payment that preserved the client's liquidity. We advised them to pass.

Six weeks later, we found them a better property in The Nations. Comparable size, lower acquisition cost, cleaner permit history, and trailing actuals that supported a genuine return. They're closing next month.

"The deal that looks best on a projection sheet is almost never the best deal. Our job is to find the one that performs, not the one that sells." Jack Costigan

Gross Revenue Is Not Your Return

This is worth saying plainly. A Nashville STR generating $80,000 in gross revenue is not an $80,000 return. After platform fees, management, cleaning, maintenance, and utilities, you're working with $44,000-$52,000 in net operating income in a well-run operation. After debt service on a $600,000 acquisition at current rates, you may be looking at $8,000-$15,000 in annual cash flow.

That can be a perfectly acceptable return depending on your capital structure, tax position, and appreciation assumptions. But it needs to be modeled honestly before the offer goes in.

The Nashville median home price sits around $484,000. Investors assuming STR income will comfortably cover a mortgage at that price point, plus expenses, are running numbers that don't pencil without either a large down payment or exceptional property performance.

We've closed over $40 million in Nashville real estate in the last year alone. The deals that have performed best for our clients share one characteristic: the underwriting was conservative, and the actuals beat the model.

Learn more about our STR advisory process at [The Costigan Group STR Advisory page].

FAQ: Nashville STR Underwriting

What is the biggest mistake Nashville STR investors make?

Relying on AirDNA projections or management company estimates instead of verified trailing 12-month actuals from the current owner. Market-level data does not tell you what a specific property actually earns.

Are Nashville STR permits transferable when a property sells?

Not automatically. Nashville Metro's STR permits are tied to the owner and property type. Type 2 non-owner-occupied permits are capped by zone and do not automatically transfer. Permit status must be verified before any offer is written.

What expense ratio should I assume for a Nashville STR?

Conservative underwriting uses 45-60% of gross revenue for operating expenses before debt service. This includes management (20-30%), platform fees, cleaning, maintenance reserve, utilities, insurance, and furniture amortization. Projections showing 25-35% expense ratios are typically understated.

What is DSCR and why does it matter for STR purchases?

Debt Service Coverage Ratio measures whether a property's net operating income covers its mortgage payments. Lenders typically want a DSCR of 1.2 or higher on investment properties. Many Nashville STR deals look attractive on gross revenue but fail DSCR tests once actual expenses and current interest rates are applied.

Which Nashville neighborhoods are best for STR investment in 2026?

East Nashville, The Nations, and Germantown remain high-demand corridors, but all three have experienced occupancy compression and increased supply. Performance varies significantly by specific block, property type, and permit availability. Submarket analysis should be part of every acquisition decision.

How long does it take to furnish and set up a Nashville STR?

A full STR setup for a 3-4 bedroom property runs $25,000-$50,000 and takes 3-6 weeks from closing to first booking. This is a capital cost that should be modeled into your acquisition analysis, not treated as an afterthought.

How do I verify that a Nashville STR's revenue claims are accurate?

Request platform payout statements directly from Airbnb and VRBO going back 12 months. These are downloadable reports that show actual payouts, not projected earnings. If the current owner cannot produce these, treat the revenue claims as unverified.

The Underwriting Is the Investment

The projection isn't the investment. The underwriting is.

We don't advise clients on what a property could earn. We advise them on what it actually earns, what it will cost to operate, and whether the net return justifies the capital. That's the standard we hold ourselves to on every deal, whether it's a $400,000 cottage in East Nashville or a $1.2 million property in 12 South.

If you're evaluating a Nashville STR acquisition, start with the actuals. If you don't have them, you don't have a deal worth analyzing.