Since I only do value add deals, I want to make sure there are rent comps and income that can afford my renovation spec. 

What happens if the battery dies or the system malfunctions?

There are times that people can't start their cars because they forgot to plug in the battery is bad. 

Each unit features 2 bedrooms and 1 bathroom, providing a total of 4 bedrooms and 2 bathrooms across 1,684 sq. ft. of heated living space.Key Features & Upgrades:New Roof for long-term durabilityFresh Exterior & Interior Paint for a modern and inviting lookNew Interior & Exterior Doors with updated locksets for added securityLuxury Vinyl Plank (LVP) Flooring throughout, combining style and durabilityFully Renovated Kitchens featuring brand-new cabinetry and quartz countertopsUpdated Bathrooms with new tiled tub surrounds, vanities, and toilet seatsNew Light Fixtures & Mini Blinds installed throughout the propertyComplete HVAC System Replacement for Unit 686 & New Condenser & A-coil for Unit 688Plumbing Upgrades including new water heaters, updated faucets, leak detection, and a cleanout drain installationSecurity & Hardware Updates with rekeyed locks, new smoke alarm batteries, door hardware, and cabinet adjustmentsNew Landscaping to enhance curb appealThis turnkey property is ideal for homeowners or investors seeking a low-maintenance, move-in-ready duplex in a prime Memphis location.

This is my first spec house and I’ve learned a lot.

.$965/sq. ft.30 Battery Ln$2.53M3,200 sq. ft.$791/sq. ft.597 Beavertail Rd$7.82M5,300 sq. ft.$1,475/sq. ft.541 Seaside Dr$4.2M3,400 sq. ft.$1,235/sq. ft.4 Dewey Ln$4.05M2,700 sq. ft.$1,500/sq. ft.Step 2: Adjusting for SizeSince the planned home at 245 Seaside Dr will be 4,000 sq. ft., I used an estimated price per square foot within the market range:Conservative: $1,200/sq. ft. → $4.8M ARVModerate: $1,350/sq. ft. → $5.4M ARVHigh-End: $1,500/sq. ft. → $6.0M ARVPremium Luxury (based on 4 Dewey Ln & 597 Beavertail Rd): $7.1MSince 245 Seaside Dr is a prime location and waterfront lots in Jamestown have high demand, I conservatively estimate $1,500/sq. ft., leading to an ARV of:4,000 sq. ft. × $1,500/sq. ft. = $6.0M – $7.1MStep 3: Justification of ARV at $7.1MWaterfront Location: High demand for oceanfront properties in Jamestown.Luxury Market Trends: High-end buyers are paying $1,200 – $1,500 per sq. ft. for new construction.Comparable Sales Support: 4 Dewey Ln and 597 Beavertail Rd confirm the $1,500/sq. ft. estimate is realistic.Low Inventory: Waterfront lots in Jamestown are scarce, increasing property value.Your ARV analysis looks pretty solid based on the comps you’ve used.

Challenge is getting tenants to accept no-keys and changing batteries during their stay.

Even if the owner seems like a really nice person, they will micromanage the builder and not like the specs of the house the builder needs to do, and/or the timing in which the builder gets it done, etc. 

Quote from @Jose Leal: Hi everyone, I am currently working as a construction manager with a spec home builder in Texas.

I don't disagree with a lot of your sentiments but the numbers don't work on duplexes in our market anymore like a traditional duplex where people want to house hack so in my opinion a triplex is the best. it also allows you to have highest asset value possible. in terms of our single family spec homes compared to our spec triplexes the triplex build to rent have the most interest.