As last resort I am reaching out to the bigger pockets forum. There isn't much information / YouTube videos on new construction duplex developments. The goal is to build & sell, but worst case scenario maintain the property for a couple of years if it doesn't sell. I have attached a spreadsheet I've created on the following cost of developing a duplex. Currently seeing what has sold in my market, checking rent comps then working the number backwards.Professional input would be appreciated. (Linked for free use as well) Thank you in advance. https://www.icloud.com/numbers/001gDqWRq6WawXhBzkGU0fOpg#Dup...

20%-15% land accusation

50% construction

25%-30% sweat equity

- Permits

What is the laundry list of permits needed to to get started with a new construction duplex?

Architect & Engineering plans

Rendering

Surgery 1 & 2

County permits

Municipality Utilities District cost

These are the permits I am aware of, but I know there has to be more permits I could be missing.

Cost Tracker
Lot Purchase Price 20% - 15%
Architect & Engineering Plans
Rendering
Survey 1 (Stake Corners & Elevation Cert)
Surveyor (Final Elevation Cert & Final Survey)
County Permit
Municipality Utilities District
Portable Toilet
Foundation
Silt Fence
Site Work (tree removal / 8in Dirt Scrape)
Concrete Slab
Framing
Lumber
Engineering Wood Products (Trusses)
Accessories & Lumber
Framing Labor $2.5 per sqft
Plumbing
Plumbing Turnkey
Sinks
Toilets
Faucets & Shower Trim
Electrical
Electrical
HVAC
Hvac
Interior
Windows & Material
Back Door
Front Door
Siding, Sheathing & Cornice Material
Siding, Cornice, Doors, Window Labor
Roof
Roof Deck Material
Roof Deck Labor
Standing Seam Metal Roof (optional)
Insulation
Insulation
Drywall
Drywall
Firewall
Hang, Tape, Float & Texture Labor
Drywall Touch Up Labor
Paint
Exterior Paint
Interior Paint
Extra Cost (Caulk & Paint Upgrade)
Carpentry
Door Handles
Cabinets
Interior Doors
Baseboards & Shelving (closets, utilities & Pantry)
Carpentry Labor
Counter Tops
Counter Tops
Mirrors
Mirrors
Garage
Garage Door & Opener
Driveway
Driveway
Flat Work (AC Pad, Walkways, Steps, Backyard Steps)
Tiling
Tile Material
Tile Labor
LVP
LVP Material
LVP Labor
Railing
Railing
Landscaping
Landscape Final grade
SOD
Flower Bed
Dumpster
Dumpster
Appliancese
Dish Washer
Stove
Microwave
Misc
Mail Box
Final Cleaning
House Plan Prints
Water & Electric During build
Refunds / Deposits
Refundable Deposit