Every few weeks someone sends me a listing with a screenshot from a revenue calculator and a message that says look at this number. The number is gross, annual, and assumes the house books like July all year. Lake Conroe does not book like July all year. Here is how I actually underwrite these.
What does honest revenue look like on Lake Conroe?
Seasonal, concentrated, and weekend-heavy. Summer weekends and holiday weeks carry the year. Spring and fall shoulder seasons contribute, and winter weekdays mostly do not. An honest pro forma builds the calendar from those tiers rather than averaging a fantasy occupancy across twelve months. Waterfront with usable depth and a dock outperforms water-view, and sleeps-ten outperforms sleeps-six, because the renter here is a group, not a couple.
What rules apply before I even run numbers?
Layers, and the deal dies in whichever one you skip. The HOA or POA can restrict or prohibit short term rentals outright, and around Lake Conroe many do. Deed restrictions can do the same in neighborhoods without an active association. Local registration and permitting requirements continue to evolve, so verify the current rules for the specific city or unincorporated area with the authority itself, not a forum thread. And Texas hotel occupancy tax applies to stays under thirty days, with state and possible local components, whether or not a platform collects part of it for you.
Verification order: covenants first, then local rules, then the revenue math. Never the reverse.
Which expenses do first-time hosts forget?
The ones that make lake houses lake houses. Dock and bulkhead upkeep, higher insurance written for short term use, lawn and pest on a weekly rhythm, utilities that guests treat generously, furnishing refresh every couple of years, cleaning at a per-turn cost that scales with the sleeps-ten strategy, and management at a meaningful percentage if you are not answering the 11 p.m. hot tub message yourself. My working rule: whatever operating number a first-time host writes down, the lake adds a third.
So is it a good investment?
At the right basis, with the right rules verified, underwritten at realistic occupancy, yes, it can be. The buyers who do well here buy the house they could also long-term rent or sell into the second home market, so the investment has more than one exit. The full carrying-cost picture of waterfront ownership in the waterfront buying guide applies here doubled, because guests are harder on a house than owners.