Buy. Rehab. Rent. Refinance. Repeat.
BRRRR (sometimes written BRRR) is a way to build a rental portfolio by recycling the same money. Here is what it is, how each step works, and the math that decides whether a deal qualifies.
One down payment, more than one property
You buy a run-down house below market value, renovate it so it is worth much more, rent it out, then refinance it based on the higher value. If the new loan is large enough, it repays the money you put in, and you use that same money to buy the next property.
Get your cash back
A successful refinance returns some or all of your purchase and rehab money, so one pool of capital can fund deal after deal.
Create the equity
You are not waiting for the market. The renovation itself lifts the value, which is why the buy price and the rehab budget matter so much.
Rent, don't sell
Instead of selling a flip and paying tax and costs, you keep the property, collect rent, and keep the equity.
The five steps, in order
Buy
Find a property priced low enough that the finished value leaves room. The number to know is the after-repair value (ARV), supported by comparable sales of renovated homes nearby.
- Look for dated or as-is homes where the work is cosmetic and mechanical, not structural
- Fund it with cash or short-term money such as a hard-money loan, since a conventional lender will not finance a house in poor condition
- Run the full budget before you make an offer, not after
Rehab
Spend money only where it raises value or makes the house rentable and durable. Rentals reward neutral, tough, low-maintenance choices over personal taste.
- Prioritize kitchen, baths, flooring, paint, and mechanical systems such as heating, cooling, and electrical
- Keep a contingency for surprises; many investors set aside 10 to 15 percent of the rehab budget
- Use a general contractor, and price the job in writing before you start
- Do not over-improve for the street; match the comparable homes
Rent
Set the rent from comparable rentals, screen applicants carefully, and get a signed lease in place. A lender will look at the rent when it decides how much to lend.
- Photograph the finished home well; the listing is your marketing
- Screen for income, credit, rental history, and references
- Hold back cash for vacancy, repairs, taxes, and insurance
Refinance
Replace the short-term loan with a long-term loan sized on the new appraised value. This is a cash-out refinance: it pays off what you owe, and anything left over comes back to you.
- Investor loans commonly lend about 70 to 80 percent of the appraised value; terms vary by lender
- Many lenders require you to own the property for a set period, often around six to twelve months, before they will lend on the new value; some programs differ, so ask early
- Some loans, often called DSCR loans, qualify the property on its rent rather than your personal income
- The appraisal is the deciding moment. Everything depends on it matching your ARV
Repeat
Put the recovered cash into the next property and run the same steps. Keep reserves in the bank so a repair or a vacancy on one house does not stall the rest.
The one relationship that decides it
Your all-in cost is purchase price plus rehab plus closing and holding costs. If the refinance loan is at least as large as your all-in cost, you get everything back. With a 75 percent loan, that means all-in cost must be at or below 75 percent of the ARV.
Example only: $220,000 purchase, $60,000 rehab, $15,000 closing and holding costs. These are not Zack's numbers. Try your own below.
Illustrative. Payment is principal and interest only; taxes, insurance, and upkeep are your estimate in the last field. Not financial advice.
The risks, and the guardrails
The value comes in low
ARV is a projection. If the appraisal is lower, the loan is smaller and more of your cash stays trapped. Use conservative comps and leave margin.
The rehab runs over
Every extra dollar raises your all-in cost. Keep a contingency and a written scope, and walk the job before you pay.
Waiting to refinance
Seasoning rules mean you may carry the short-term loan for months. Price the holding cost into the deal.
The payment is higher
A higher rate or a larger loan shrinks cash flow. Test the deal at a rate above today's, and keep reserves.
Brighton Avenue, steps one to three
6 N Brighton Ave in Upper Darby was bought as-is in April 2026 for $221,000, renovated, and listed for rent on August 5, 2026 at $2,990 a month. That is Buy, Rehab, and Rent. Whether a refinance followed is not part of the public record, so this page does not claim one.
Know the number before you commit. Have a confident estimate of what the property is worth after the work is done.Zack Cucinotta, on underwriting a flip
Educational overview, not financial, tax, or legal advice. Loan-to-value limits, seasoning periods, and loan programs differ by lender and change over time; confirm current terms with a lender and your own advisors before you buy.