Estimating After Repair Value (ARV) is one of the first steps in any fix-and-flip or rental analysis. Without a listing agent to provide a number, you must rely on your own research and a few reliable tools. This guide walks through a practical, step-by-step method you can use from your computer or phone.
What ARV means and why it matters
ARV stands for After Repair Value. It is an estimate of what a property will be worth once all repairs and improvements are complete. Lenders, hard money providers, and buyers all use ARV to determine how much capital is available in a deal.
If you overestimate ARV, you may pay too much for the property or borrow more than the asset supports. If you underestimate it, you leave money on the table or miss deals entirely. Learning to calculate ARV yourself gives you control and helps you underwrite deals more confidently.
Step 1: Define the property’s post-rehab condition
Before you look at comparable sales, you need a clear picture of what the house will look like after work finishes. Walk the property (or view photos) and note:
- Number of bedrooms and bathrooms
- Total square footage
- Kitchen condition (updated, semi-updated, or outdated)
- Bathroom condition and fixtures
- Flooring type and condition
- Roof age and state
- HVAC system status
- Curb appeal (landscaping, paint, exterior condition)
Write these features down. They will help you select the right comparables and adjust your ARV up or down based on differences.
Step 2: Find recent comparable sales
The most reliable ARV estimates come from "comps"—recent sales of properties similar to the one you are analyzing. Aim for sales closed within the last three to six months in the same neighborhood or a very close sub-market.
How to find comps
- Online public records: County assessor websites often list sale prices and dates.
- Real estate portals: Sites like Zillow, Redfin, or Realtor.com show recent sales, though always verify the price with public records.
- Multiple Listing Service (MLS): If you have access through a licensed agent or investor-friendly platform, use the "sold" filter and focus on closed transactions, not active listings.
- Drive-by or virtual recon: Visit the property or use Google Street View to confirm condition and features.
What to look for in a comp
Select properties that match your subject property in:
- Location (same street, same school district, or within a half-mile radius)
- Size (within 200–300 square feet of the subject)
- Bed/bath count (exact match is ideal, but one bedroom difference is often acceptable)
- Age and condition (similar construction year and renovation level)
- Lot size and style (single-family, townhome, etc.)
Avoid using listings that are still active or properties that sold more than six months ago, as market conditions can change quickly.
Step 3: Adjust the sale prices
Rarely will a comp match your subject property perfectly. You will need to adjust the sale price up or down to account for differences. This is the heart of the comparable sales method.
Common adjustment categories
- Square footage: If the comp is 1,000 sq ft and your subject is 1,200 sq ft, estimate the value per square foot of the comp and apply it to the difference.
- Bedrooms and bathrooms: An extra bathroom can add $10,000–$25,000 to value depending on the market; an extra bedroom less.
- Kitchen and bathroom updates: Fully renovated vs. original 1970s finishes can shift value by 10–20%.
- Garage, porch, or yard size: Covered parking or a fenced yard may add value in certain neighborhoods.
- Floor level or view: Top-floor units or properties with mountain/water views command premiums.
Doing the math
Example: A comp sold for $250,000. It has two bathrooms; your subject has one and a half. If a half-bath adds roughly $8,000 in your area, you would subtract $8,000 from the comp price, giving an adjusted ARV of $242,000.
Repeat this process for three to five comps. The adjusted prices should cluster around a central value. That cluster is your ARV estimate.
Step 4: Calculate the ARV average
Once you have adjusted all your comps, find the average of the adjusted sale prices. This number is your ARV.
If your three adjusted comps are $242,000, $248,000, and $255,000, the average is $248,333. Round to the nearest hundred or thousand depending on your market’s typical listing increments.
Some investors weight the comps—giving more importance to the most similar properties—but for a first analysis, a simple average works well.
Step 5: Factor in repair and carrying costs
ARV is only one piece of the puzzle. To determine if a deal makes sense, you must subtract the costs of getting to that post-rehab state.
Repair cost estimating
Walk the property and create a room-by-room list of needed work. Common categories include:
- Demolition and debris removal
- Structural repairs (roof, foundation, windows)
- Electrical and plumbing updates
- HVAC replacement or repair
- Flooring throughout
- Kitchen remodel (cabinets, countertops, appliances)
- Bathroom updates (fixtures, tile, vanity)
- Paint interior and exterior
- Landscaping and exterior refresh
Get contractor estimates for each line item, or use a detailed repair calculator if available. Add a contingency of 10–20% for surprises uncovered behind walls or under floors.
Holding costs
Holding costs are the expenses you carry while owning the property during rehab and sale. Typical items include:
- Mortgage or hard money interest
- Property taxes
- Homeowners insurance
- Utilities (if you pay them during rehab)
- HOA fees (if applicable)
- Lawn maintenance and security
Estimate these on a monthly basis and multiply by the number of months you expect the rehab to take plus the time to sell. A typical flip might hold the property for four to six months total.
Closing costs
When you sell, expect to pay:
- Real estate commission (typically 5–6% of sale price, split between buyer’s and seller’s agents)
- Title insurance and escrow fees
- Transfer taxes
- Any outstanding liens or repairs negotiated during inspection
These costs typically run 8–10% of the final sale price.
Financing options
If you are not paying cash, factor in:
- Hard money loans: Short-term, interest-only loans with higher rates (often 10–15% APR). They fund based on ARV and typically charge points (1–3% of loan amount) at closing.
- Private money: Loans from individuals or investment groups. Terms vary widely; read the note carefully.
- Equity partners: Some investors bring capital in exchange for a share of the profit.
Each financing option has different points, rates, and repayment schedules. Choose the one that fits your timeline and capital structure.
Taxes on flip profits
Profits from a flipped property are generally taxed as ordinary income, not long-term capital gains, if the IRS views you as a dealer rather than an investor. Set aside a portion of your projected profit (often 25–35%) for federal and state taxes. Consult a tax professional for your specific situation.
Common mistakes to avoid
- Using outdated comps: Sales older than six months may not reflect current market conditions.
- Over-adjusting: Small differences (like a newer paint color) should not shift the price dramatically. Keep adjustments reasonable and document your reasoning.
- Ignoring the neighborhood: A house two blocks away in a different school district or flood zone may not be a valid comp, even if the square footage matches.
- Forgetting carrying costs: A high ARV means little if the deal does not cover holding costs and still leaves profit.
- Skipping the contingency: Repairs always cost more and take longer than expected. Build in a buffer.
Frequently asked questions
How many comps should I use to estimate ARV?
Three to five recent, adjusted comps is a standard practice. Fewer than three may not give a reliable range; more than five can dilute the focus on the most relevant properties. The key is quality over quantity—each comp should be genuinely similar to the property you are analyzing.
Disclaimer: This guide is for educational purposes only and does not constitute financial, legal, or tax advice. ARV estimates are opinions based on available data and may differ from actual appraised values. Always consult qualified professionals before making investment decisions. No guarantees of profit are made or implied.