House Hacking a Dallas Duplex That Doesn’t Cash Flow (Yet) – Would You Buy It?

Question

My husband and I are first-time house hackers looking at a duplex in the Dallas area, and we’re trying to determine if we’re making a smart long-term investment or buying an expensive headache.

Here are the numbers:

• Purchase with FHA
• Interest rate: 5.75%
• PITI: Approximately $5,400/month
• Current market rent: Around $2,300–2,400 per side
• We’ll be living in one unit and renting the other while we renovate.
• We plan to put about $25k–30k into upgrades on our side while we’re living there, with the goal of increasing the property’s value and rental appeal.

Our plan is to live there for at least a year, then eventually move out, rent both sides, and refinance if rates come down.

My biggest concern is that even after moving out, the property may not cash flow—especially if property taxes continue increasing by a few hundred dollars over the next few years.

For investors who have bought similar duplexes in today’s market:

• Would this be a deal you would move forward with?
• How do you determine whether a property is likely to cash flow in the future versus hoping appreciation or lower interest rates save the deal?
• What would be a deal breaker for you?
• Would you bank on refinancing, or underwrite the deal assuming today’s interest rate stays the same?
• Have any of you bought a duplex that initially didn’t cash flow but became a great investment a few years later?

We’re okay with breaking even or even being slightly negative while house hacking if it sets us up well in the future, but we don’t want to buy something that never has a realistic chance of producing positive cash flow.

I’d really appreciate hearing how more experienced investors would analyze this situation. Thanks!

Harrison Sharp · Answer

whats the property address? I think the questions here heavily depends on your long terms goals. If its in an appreciating area and the value add can increase rents to 5,500 probably makes sense especially if you're currently paying more to live today than you would buying  it. Most areas in DFW now won't cash flow unless they are C-D. I'm a broker here in DFW and sell 100 or so properties a year and got my start in house hacking. If you need anything or have any questions feel free to DM me!

Wale Lawal · Answer

@Ira Frank jr

With regard to this deal that I might be underwriting, I would consider it safe to maintain the current interest rate and property tax, and would consider any subsequent refinancing an added advantage. House hacking would make for a slow initial start, but I would ensure a clear route to profitability through conservative rents.

Good luck!

G. Brian Davis · Answer

House hacking can be a great way to get started, and I like that you’re thinking beyond just the first year. The one thing I’d be careful about is relying on a refinance or appreciation to make the numbers work. I’d underwrite the deal assuming today’s interest rate is the rate you’ll keep. If you’re able to refinance later, that’s a bonus, not part of the investment thesis. I’d want to know the property has a realistic path to cash flow under conservative assumptions. If it only works because rates come down or appreciation bails you out, I’d probably keep looking.