I have modeled this house hack scenario in an Excel spreadsheet to the best of my ability, simulating the cash flow from the year purchased to year sold, and the average returns look quite a bit higher than 15% which leaves me feeling optimistic but also like I have missed something.In any case, I hope that provides a picture of where I am coming from, and I would greatly appreciate any advice you have.Blessings to you. 

This is to simulate the leach field already being wet or in use.Percolation test-   Then you fill to 6 inches every 30 minutes and measure the loss of water during that time.

If it keeps looking up you are on your way to getting that golf simulator you want.  

For the right borrower it can have amazing results, here is an example of a simulator and loan scenario we recently closed for a borrower. 

I see the same pattern with my own finances as an investor.I just asked ChatGPT to run an economic simulation based on ourcurrent economic model and went down a rabbit hole: a capitalist system becomes unstable when the Gini coefficient reaches 0.6 (a measure for wealth inequality) - that's when you see social unrest, because most of the capital has been so concentrated with a few, that there is simply nothing left for the population to own.

Of course having ammentines such as a pool, golf simulator, fire pit, hot tub, game area will add to that value 

Ethan did you end up pursuing the simulator?

When I asked if he could simulate certain payoffs or scenarios so we can get there, he flippantly sent me a link to myfico.com and said figure it out.

Unlike typical 'eatertainment' venues or sports bars, this concept puts wellness, family, and active living at the center—complemented (not driven) by food, beverage, and social programming.Core FeaturesSports & Activity ZonesIndoor pickleball courts (climate controlled, 4–6 courts)Indoor/outdoor beach volleyball courts (convertible for basketball/futsal)Golf simulators & mini bowling lanesTrampoline park + gymnastics/karate zone for kids/teensWellness & RecoveryYoga, Pilates, meditation, & HIIT studiosSauna, cold plunge, cryotherapyStretch Lab–style recovery center (guided stretching sessions, memberships, group classes)Waterfall garden + relaxation space away from active sports areasFamily & CommunityDog park with outdoor games + beer garden/shaded seatingRunning/walking trail with landscaped connectionsOn-site trolley to connect 10 acres of amenitiesSignature lazy river wrapping the propertyEntertainmentLive music stage (concerts, DJs, open mics, festivals)Event lawn for community markets, tournaments, and seasonal activationsFood & BeverageFood hall with rotating local chef pods (entrepreneurship focus)Morning coffee, juice, and healthy breakfast service tied to wellness classesLiquor license for controlled, property-wide sales (alcohol as complement, not driver)Programming & ActivationA 7-day calendar ensures consistent traffic and appeal across demographics:- Mornings: wellness classes + healthy breakfast service- Afternoons: after-school clinics + corporate team sessions- Evenings: leagues, trivia, karaoke, esports, family game nights, markets- Late nights (weekends): concerts, DJ sets, festivals, after-hours crowdRevenue StreamsCourt & bay rentalsMemberships & leaguesFood & beverage sales (partnership rev share)Wellness services (stretch lab sessions, day passes, memberships)Events (concerts, markets, corporate rentals)Sponsorships & naming rightsTrampoline/fitness zone admissionsTarget MarketPrimary: Adults 25–50 seeking active, social recreation with wellness focusSecondary: Families, sports leagues, and corporate groups during daytime/weekendsTertiary: Tourism and visitor spillover from SWFL’s growing destination marketDifferentiatorsWellness + family integration (unique for this type of complex)Signature lazy river as both a wellness and entertainment attractionLocal food entrepreneurship via rotating vendorsYear-round activation calendar to ensure constant useAlcohol as complement—not driver—to active recreationClimate-controlled indoor facilities for consistent playPhasing the BuildPhase 1: Core sports courts, food hall, bar, family/kids activity zone, and event lawnPhase 2: Wellness + recovery center, simulators, bowling, dog park/beer gardenPhase 3: Lazy river, trolley service, expanded outdoor landscape, and concertsPotential Challenges to Solve EarlyZoning & Permitting: Mixed-use recreation, wellness, and entertainment will require layered approvals (PD recommended)Site Selection: Large footprint and 200–300 parking spaces required; access is criticalCapital Requirements: Likely $10M+ at full scale; partnerships or phased funding may be neededOperations: Complex amenity mix requires strong GM and specialized team leadsLand NeedsPhase 1 – Core Sports & Food Hub:- Indoor pickleball courts: 20,000–30,000 sq ft (~0.5–0.7 acres)- Beach volleyball courts: 12,000–18,000 sq ft (~0.3–0.4 acres)- Bar & rotating kitchen hall: 8,000–10,000 sq ft (~0.2 acres)- Parking: 150–200 cars (~1.5–2 acres)Total: ~3–4 acresPhase 2 – Entertainment & Wellness Expansion:- Golf simulator lounge + mini bowling: 8,000–12,000 sq ft (~0.2 acres)- Yoga/sauna/wellness center: 5,000–8,000 sq ft (~0.1–0.2 acres)- Event lawn/live music: ~0.5 acres- Additional parking: 0.5–1 acreCumulative Total: ~4.5–6 acresPhase 3 – Signature Lazy River & Enhancements:- Lazy river: 20–30 ft width x 1,000–1,500 ft (~0.75–1 acre water + deck, ~1.5 acres total)- Expanded courts/event space: ~0.5–1 acre- Landscaped greenbelt areas: ~0.5 acresCumulative Total: ~7–8.5 acres minimumWhy target 10+ acres: Provides buffer zones, future growth space, and avoids maxing out footprint too early.Zoning & Entitlement PathThis project spans several land use categories, so a Planned Development (PD/PUD) overlay is the cleanest path.

I have a close friend that provides and installs golfing simulators.