House Hacking in Denver: A $465K ADU Play

The Property

One recent open house had a 605-sq-ft, 2BR/1BA bungalow with a separate 518-sq-ft, 1BR/1BA ADU on the same lot. Both units had their own garage and were move-in ready. The zoning is E-SU-D1 — single-family with an ADU allowed — and that's the key detail, because Denver law lets you live in the main unit and short-term-rent the ADU on Airbnb.

Listing price: $465,000.

The Math

If you have $20K–$25K, an FHA loan gets you in: $16,275 down, roughly $5,000 more for closing and ADU furnishings. The mortgage payment, including escrow, comes to around $3,600 per month.

The real question: how much of that $3,600 does the short-term rental cover?

Revenue projection

AirDNA estimated the ADU at $128 per night with 75% occupancy — roughly $34K annual revenue. That's the optimistic number, and if you're new to hosting, you probably won't hit it right away. A more realistic figure assumes 60% of that to account for the learning curve, seasonal dips, and the occasional gap between guests: $21K annually, or $1,750 gross per month.

After cleaning fees, platform fees, maintenance reserves, and property tax on the rental portion, you're netting closer to $1,369 per month. That covers roughly 38% of the mortgage.

Your housing cost for the 2BR drops to $2,200 per month. Comparable rentals in the area ran $2,200–$2,500, so you're at breakeven or a little ahead.

Equity Math

Getting the mortgage covered is a good start, but the bigger return is equity.

At 3% annual appreciation on a $465K property, you're gaining $13,950 per year just from price movement. Add $4,400 from loan paydown in year one — and that number improves every year after. That's $18,350 in annual equity on a $20,000 initial investment: more than 90% return in year one, compounding the longer you hold.

Hold it 10 years at that same 3% and you're sitting on real equity — without the hassle of managing two long-term tenants.

Value-Add Opportunities

Beyond the cash flow and equity, two improvements could push the value up:

• Garage door repair/installation — high ROI, visible curb appeal
• Yard restoration and landscaping — improves both the ADU rental appeal (Airbnb guests pay more for outdoor space) and primary-unit livability

Neither is a big project — you can knock them out gradually while the ADU is already earning.

Who This Works For

This works if you have $20K–$25K, you're willing to manage the ADU yourself — not hand it to a property manager who'd eat half the margin — and you're okay living in the main unit for 3–5 years while equity builds.

If you want passive income with as little involvement as possible, this isn't the right fit. But if you don't mind talking to guests, handling the occasional turnover, and riding out a slow month or two while you get your listing dialed in, the math works.

You don't need a six-figure down payment or a construction crew. You need time and the willingness to stay on top of it as the person living there. That's the whole point of house hacking.

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Paul McCoy, Realtor | Fathom Realty | License #: FA.100105533 | (319) 325-0668 | pmccoy626@gmail.com

Paul McCoy is a licensed real estate professional in Colorado. Equal Housing Opportunity.