Idaho real estate glossary

What is After-Repair Value (ARV) and How Is It Calculated?

After-Repair Value (ARV) is the projected market value of a real estate property after all planned renovations and improvements are completed. Real estate investors, house flippers, and private lenders use ARV to assess project margins, calculate Maximum Allowable Offers (MAO), and set lending limits.

Updated with grounded research as of 2026-07-22.

The short answer

After-Repair Value (ARV) estimates a property's market value post-renovation. It is calculated by evaluating recent sale prices of comparable, fully renovated homes (comps) located within the same immediate micro-market.

Key facts

ARV Definition
The estimated future market value of a home after planned renovations, repairs, and cosmetic upgrades are complete.
Basic Calculation
ARV = Current Purchase Price + Value Added from Completed Renovations (determined by comparative market analysis).
70% Rule & MAO
Investors use ARV to cap purchase offers: Maximum Allowable Offer (MAO) = (ARV × 70%) − Estimated Repair Costs.
Ada County Market Baseline
In Ada County, Idaho, as of mid-2026, single-family homes feature an average sold price around $580,000, providing an essential local benchmark for comps.

Understanding ARV and How It Is Calculated

After-Repair Value represents the estimated resale value of a distressed or dated home once all planned rehabilitation work is finished. Rather than simply adding contractor repair costs directly to the purchase price, ARV relies on comparative market analysis (CMA).

To calculate ARV accurately, investors evaluate 3 to 6 comparable renovated properties ('comps') sold within the last 90 to 180 days. In dynamic markets like Boise, Eagle, or Nampa, comps should ideally be within a 0.5 to 1-mile radius and feature similar square footage, age, and bedroom/bathroom layouts.

  • Step 1: Identify recent sales of fully renovated homes in the immediate neighborhood.
  • Step 2: Calculate average price per square foot or baseline value of renovated comps.
  • Step 3: Adjust values for feature variances (e.g., garage space, lot size, or basement finish level).
  • Step 4: Establish the final ARV baseline for underwriting.

The Role of ARV in Financing and Offer Formulas

ARV is crucial when structuring real estate investments because hard money lenders, private investors, and financial institutions use it to establish leverage limits. Many hard money programs cap total loan amounts at 70% to 75% of the projected ARV.

Flippers and buy-and-hold investors also use ARV to calculate their Maximum Allowable Offer (MAO), protecting margins against unexpected construction cost overruns or holding costs.

  • 70% Rule Formula: MAO = (ARV × 0.70) - Estimated Rehabilitation Costs.
  • Lender Cap: Combined purchase and construction financing rarely exceeds 75% of ARV.
  • Holding Costs: ARV underwriting must account for local property taxes, HOA fees, and loan interest paid during renovation.

Idaho Local Market Factors Affecting ARV

Calculating ARV accurately in Idaho requires adjusting for submarket dynamics. In Ada County, Idaho, where average sold prices held near $580,000 in mid-2026, buyers pay a premium for move-in-ready conditions in established areas like the Boise Bench or North Boise.

Remodeling returns vary significantly across project types in the Treasure Valley. Mid-range kitchen and bathroom updates typically yield some of the highest local returns on investment, whereas over-improving beyond neighborhood standards can lead to appraisal shortfalls post-renovation.

  • Neighborhood Cap: Renovation scope should match local buyer expectations without exceeding peak micro-market values.
  • Seasonal Timing: Days on market in Idaho fluctuate seasonally, impacting carrying cost budgets during winter months.
  • Appraisal Alignment: Final lender appraisals post-renovation must match investor ARV projections to allow smooth refinances or resale cash outs.

Common questions

Why is the actual cost of repairs different from the value added to ARV?

Dollar-for-dollar renovation spending rarely translates to equal equity growth. Some improvements (like kitchen updates) yield high returns, while structural or unseen repairs (like roof or HVAC replacements) preserve value rather than increasing resale prices significantly.

How does the 70% rule apply to ARV in real estate investing?

The 70% rule dictates that an investor should pay no more than 70% of the property's estimated After-Repair Value (ARV) minus the total estimated repair costs. The remaining 30% covers profit, holding costs, and closing fees.

What happens if a post-renovation appraisal comes in lower than the projected ARV?

If an appraisal falls below the estimated ARV, buyers may need to reduce their listing price, accept lower profit margins, or bring additional cash to closing when refinancing a BRRRR deal.

Related Idaho questions

  • How does the 70% rule work in real estate investing?
  • What is Maximum Allowable Offer (MAO) and how do you calculate it?
  • How do hard money lenders use ARV to determine loan amounts?

Sources and verification