MARKET INTELLIGENCE
Real Estate Calculators
Five free tools for running Miami-Dade purchase, tax, and project numbers before you commit to anything.
I built these calculators for my own client work and published them because clients kept asking for the links. Each one is free, with no signup and no email required. The one exception on privacy is the address lookup in the two feasibility tools and the property tax calculator, which sends the address or folio you enter to Miami-Dade County's records, normally through this site's own server function and directly from your browser if that fails. Everything else runs and stays in your browser.
Property Tax and Amendment 3 Calculator
Look up any Miami-Dade address to see its 2026 property tax next to the 2027 and 2028 bills under Amendment 3, and test what a local rate increase would do. Without an address, enter a purchase price to compare the eight neighborhoods I cover and see what the December 31, 2026 residency line is worth.
Open the calculatorCompanion articles: What Amendment 3 saves, address by address and property tax rates by neighborhood
Development Feasibility
Look up a lot through county records, check zoning coverage, and work from build cost to profit and residual land value. Covers unincorporated Miami-Dade plus the Coral Gables, Pinecrest, Palmetto Bay, South Miami, and City of Miami codes.
Open the calculatorCompanion article: New construction vs. renovation costs
Renovation Feasibility
Pull a house from county records, then price the existing square footage and any addition separately and run soft costs, contingency, carry and financing down to a profit number and the most you can pay while still hitting your margin. Built on the same engine as the development tool, for the other side of the renovate-or-rebuild decision.
Open the calculatorCompanion article: New construction vs. renovation costs
Homestead Portability Calculator
See how much of your Save Our Homes benefit transfers to your next home and what it saves each year, including the downsizing math.
Open the calculatorCompanion article: Property taxes, homestead, and portability
TRIM Appeal Calculator
Check whether a property tax appeal could actually reach your bill, straight from three numbers on your notice, before you spend anything on filing.
Open the calculatorCompanion article: The TRIM notice and appeal guide
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