
Blog · Investing
A South Miami rehab, line by line
Most articles about renovating for profit are theory. This is one operation with its numbers: what it cost, what went wrong, what it sold for, and what was actually left after the costs nobody puts in the spreadsheet.
Updated August 20263 min read
Why we publish one deal instead of a rule of thumb
Because the rules of thumb — 70% of after-repair value, 20% margin — hide the two lines that decide the outcome: the holding cost and the time.
A renovation that returns 20% in eight months and one that returns 20% in twenty are different businesses. The percentage is the headline; the calendar is the risk.
The shape of the operation
| Line | Why it matters |
|---|---|
| Purchase | The margin is made here, not at the sale. An overpaid entry cannot be renovated back. |
| Renovation budget | Plus a contingency that gets used. Permits and inspections are calendar, not just cost. |
| Holding cost | Financing, property tax with no homestead, insurance on a vacant property — which is a different and dearer product — and utilities. |
| Cost of selling | Commission, documentary stamps, title and settlement. Roughly 8% of the sale price in Florida. |
| Tax | A flip held under a year is short-term gain, taxed as ordinary income. This is the line most often left out entirely. |
The three things that went differently than planned
- Permitting took longer than the work. In much of Miami-Dade the calendar is set by the municipality, not by the contractor. Build the permit timeline into the holding cost before you buy, not after the first delay.
- The scope grew once the walls were open. It always does. The question is whether the contingency was real or decorative.
- The finish level was decided by the street, not by taste. Renovating above what the block supports is the most common way to convert a good purchase into an average outcome.
What we would tell someone doing their first one
Three things, and none of them is about the renovation.
- Underwrite the exit, not the entry. What sold on that street in the last ninety days, at what finish level, in how many days.
- Price the calendar. Every month of holding is financing plus tax plus insurance plus utilities. Multiply by the number of months you actually expect, then add two.
- Have a rental plan. If the sale does not happen at the price you need, being able to hold and rent turns a loss into a wait. Without it, the market sets your timetable.
Perozo Molina Group · +1 689 680 1112 · WhatsApp +1 689 680 1112 · perozomolina.com
A real estate team at Miami New Realty, a licensed Florida real estate brokerage (licence CQ1020974), 2470 NW 102 PL Suite 107, Doral, FL 33172. This is an estimate, not a quote. The figures come from the sources named on the page this was printed from. Nothing here is tax or legal advice.