Cosmetic Flip vs. Full Gut on the Same House: How Rehab Scope Changes Your ARV, MAO, and Profit per Month

Rehab Scope Is a Variable in Your Offer, Not a Detail You Settle Later

Most investors pick a rehab scope after they get the house under contract. They walk it with a contractor, decide what to fix, and only then learn whether the deal works. That order is backwards. The scope you plan determines the ARV you can claim, the budget you need, and the months your money sits in the project, so it has to be decided before you write a number on the offer.

One property can support several very different plans. A paint-and-flooring refresh leans on cheaper comps and a short timeline. A full gut with new systems, a reworked layout, and high-end finishes can justify the top sold comps in the neighborhood, but it costs far more and takes longer. Each plan produces its own ARV and repair figure, which means each one produces its own Maximum Allowable Offer.

The formula stays the same: MAO = (ARV x 0.70) - repair costs. If a refresh supports a $280,000 ARV with $35,000 in repairs, your MAO is $196,000 - $35,000 = $161,000. Push the ARV higher with a bigger scope and the repair line grows with it. Whether the MAO rises or falls depends on which number moves more.

MAO alone doesn't settle the choice, because it ignores time. That's why we'll also track profit per month, which is net profit divided by the number of months you hold the property. A flip that nets $40,000 in 4 months earns $10,000 per month. A flip that nets $60,000 in 8 months earns $7,500 per month and ties up your capital and credit twice as long. The bigger check isn't always the better deal.

To make this concrete, we'll underwrite one house two ways. It's a 1960s ranch with 3 bedrooms and 2 baths, listed at $210,000, with original kitchen and baths, dated electrical, and a choppy floor plan. Version A treats it as a cosmetic flip. Version B guts it to the studs. We'll run the same formulas on both and see which plan actually earns the offer.

Version A: The Cosmetic Refresh (Worked Example)

Start with the lighter scope. The house is structurally sound, the roof and mechanicals have years of life left, and the problems are mostly visual: dated paint, worn carpet, tired fixtures, and an oak kitchen from 1998. The plan is fresh paint throughout, LVP flooring, new light and plumbing fixtures, kitchen cabinet refacing with new hardware, and a landscaping cleanup. Budget: $35,000, with a 4-month timeline from closing to sold.

The ARV has to match that scope. Pull comps that sold in the condition you will actually deliver, meaning clean and updated but not new-construction finishes. Here the comps within half a mile support $300,000. Plug that into the 70% rule and you get MAO = ($300,000 x 0.70) - $35,000 = $175,000. That is your ceiling, not your opening offer.

Now build the real profit at a negotiated $170,000 purchase price. The 70% rule is a screening shortcut, so replace it with actual line items before you commit:

• Purchase price: $170,000
• Buying costs (2%): $3,400
• Rehab: $35,000
• Holding costs ($2,800/month x 4): $11,200
• Selling costs (8% of ARV): $24,000
• Total cost: $243,600

Subtract that from the $300,000 sale and net profit lands at $56,400. Divide by the 4 months your capital and attention are tied up and you earn $14,100 per month. That per-month figure is the number to carry forward, because it lets you compare scopes that take very different amounts of time.

Notice what makes this version work. Nearly every rehab dollar is something a buyer sees on the walkthrough, there are few permits to wait on, and holding costs stay modest because the timeline is short. The downside is also contained: if the kitchen refacing runs $3,000 over budget, you still clear more than $53,000. Keep that $14,100 per month benchmark in mind when you run the full gut.

Version B: The Full Gut (Worked Example and Side-by-Side)

Now underwrite the same house with the heavy scope. The budget jumps to $95,000: a new kitchen and both baths, a wall removed to open the layout, updated electrical, new HVAC, and a new roof. That work puts the house in the fully renovated comp tier, so ARV rises to $395,000. The trade-off is time, because permits, inspections, and trade sequencing stretch the project to 8 months.

Start with MAO. ($395,000 x 0.70) - $95,000 = $181,500. At the same $170,000 purchase price, the deal clears the 70% rule with $11,500 of cushion. On paper it looks at least as strong as the cosmetic version, which is exactly why you need the full profit build.

• Purchase: $170,000
• Buying costs: $3,400
• Rehab: $95,000
• Holding: $3,500/month x 8 = $28,000
• Selling costs: $31,600
• Total cost: $328,000

Net profit is $395,000 - $328,000 = $67,000. Spread over 8 months, that works out to about $8,400 per month. Notice how holding costs nearly match the entire buying and selling spread on the cosmetic side. Every extra month of permits or inspection delays comes straight out of that $67,000.

The full gut earns more total profit, but roughly 40% less per month. It also puts about double the rehab capital at risk and keeps you exposed to the market twice as long, so a rate move or a soft spring has more time to hit your resale price. If you could finish two cosmetic flips in the same 8 months, the "bigger" deal actually loses.

Nuances That Flip the Answer: Price Ceilings, Financing, Permits, and the Hybrid Scope

The gut's $395K ARV only matters if buyers in that neighborhood will actually pay it. If the highest sale within half a mile over the last 12 months closed at $340K, that is your ceiling, and new framing and quartz counters will not move it. Before you commit to a big scope, pull the top sold comp and compare. If your full-gut ARV sits well above it, rerun the deal using the ceiling price instead.

Financing punishes larger scopes in two ways. Bigger rehabs mean bigger hard money draws, and you pay interest on every drawn dollar for every month the project runs. An extra $55K borrowed at 12% costs about $550 per month, or $4,400 over 8 months, before points. Draws also release only after inspections, so contractors sometimes wait on payment, and waiting contractors tend to slow down.

Timeline risk compounds the problem. Structural, electrical, and plumbing permits can add weeks of plan review and failed inspections, turning 8 months into 10. At higher price points, fewer local buyers qualify, so days on market can stretch too. Seasonality matters as well. A March start on an 8-month gut lists in November, while a 6-month project lists in September, when more buyers are still shopping.

That is where a hybrid scope earns its place. Fully redo the kitchen and baths, replace flooring and paint, and fix anything that fails inspection, but keep the existing layout and any working mechanicals. Say that runs about $60K, supports a $345K ARV, and takes 6 months. The math: ($345,000 x 0.70) - $60,000 = $241,500 - $60,000 = $181,500 MAO. That ARV lands right at the neighborhood ceiling, with lighter draws and fewer permits.

Treat scope as a dial, not a switch between "paint" and "studs." Run at least three versions (cosmetic, hybrid, and gut) against the same comps before you make an offer. The right answer is often the scope that hits the ceiling with the least money and time at risk.

Common Mistakes When Choosing a Scope

The most expensive mistake is picking the scope after closing. If you only decide between cosmetic and gut once you own the house, your offer was based on a guess. A close cousin is using the gut-level ARV with the cosmetic budget. Say the gut ARV is $340,000, the cosmetic ARV is $295,000, and the cosmetic rehab is $35,000. Mixing them gives an MAO of ($340,000 x 0.70) - $35,000 = $203,000, while the honest number is ($295,000 x 0.70) - $35,000 = $171,500. That is a $31,500 overpay built into your offer.

The next error is judging deals by total profit and ignoring profit per month. A gut that nets $52,000 over 8 months earns $6,500 per month. A cosmetic flip that nets $30,000 over 3 months earns $10,000 per month. Bigger total profit does not always mean the better use of your capital.

That math only holds if you avoid assuming the next deal is ready when capital frees up. If your $30,000 sits idle for two months before you find another property, the cosmetic flip really earned $30,000 over 5 months, or $6,000 per month. Be honest about your deal pipeline before you count on fast turns.

Two more traps come from ignoring the neighborhood. Skipping the price-ceiling check means projecting an ARV above the highest recent sale nearby. If the top sale within half a mile is $310,000, a $340,000 gut ARV needs strong comp support. Over-improving finishes is the same mistake at a smaller scale, like quartz and custom tile in a neighborhood where buyers pay for laminate and LVP.

The fix is to model both scopes before you make an offer. In FlipSmrt, you can run the same address twice and compare the two versions side by side. Each run gives you an ARV from adjusted comps within 0.5 miles, line-item rehab priced for that county, MAO and ROI, and before/after renders of each style. The comparison takes minutes instead of hours rebuilding spreadsheet tabs.

FAQ: Cosmetic vs. Full Gut Flips

Does the 70% rule still work on a heavy rehab? The formula still works, but the percentage often needs to tighten. With a $300,000 ARV and a $110,000 gut, the standard rule gives ($300,000 x 0.70) - $110,000 = $100,000. A gut carries longer holding costs and more risk, so many flippers drop to 65% on big jobs, which gives $195,000 - $110,000 = $85,000. That $15,000 difference pays for the extra months of interest, taxes, and insurance.

How do I estimate ARV for a scope that no comp matches exactly? Bracket it. Pull lightly updated sales (say $265,000) and fully renovated sales (say $310,000) within half a mile, then adjust for square footage, bed and bath count, and lot size. Place your scope inside that range based on which finishes you are actually installing. When the fit is unclear, underwrite toward the lower comp rather than the one you hope to match.

Is profit per month always the right metric? No. It assumes you can redeploy your capital the day you sell. A cosmetic flip netting $28,000 in 4 months earns $7,000 a month, which beats a gut netting $55,000 in 9 months ($6,111 a month). If your next deal takes 3 months to find, though, the cosmetic money really earned $28,000 over 7 months, or $4,000 a month. In that case the gut wins.

How much contingency should a gut carry compared with a cosmetic flip? A reasonable baseline is 10% on cosmetic work and 15% to 20% on a gut, because opening walls exposes wiring, plumbing, and framing problems you cannot see during a walkthrough. On a $35,000 refresh, 10% adds $3,500. On a $110,000 gut, 15% adds $16,500, and that amount belongs in your repair number before you calculate MAO.

Can I analyze both scopes before I make an offer? Yes, and you should, because the scope you choose changes the offer you write. Run the address twice in FlipSmrt, once with each scope, and compare ARV, line-item rehab, MAO, and ROI side by side. Each analysis takes a few minutes, and your first three are free.