Calculate After Repair Value (ARV) in 30 seconds by averaging comparable sales or online estimates (Zillow, Redfin, Realtor.com). Get confidence ratings and price ranges.
Comparable Sales
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Pro tip: Use sold properties within 1 mile, last 90 days, similar size/bedrooms/bathrooms.
Use your calculated ARV with Flip Analyzer Pro to get instant profit projections, triple-strategy comparison, and offer recommendations.
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What is ARV (After Repair Value)?
After Repair Value (ARV) is the estimated market value of a property after all repairs and renovations are completed. ARV is the single most important number in house flipping because it determines your maximum offer, expected profit, and whether a deal makes financial sense.
Professional real estate investors calculate ARV before making any offer. Overestimate ARV by just 5%, and you could lose $15,000-30,000 on a typical flip. Underestimate it, and you'll lose deals to competing investors who bid higher.
Why Accurate ARV Matters
ARV determines every other number in your flip analysis:
Maximum Offer: The 70% rule uses ARV to calculate the most you should pay (ARV × 0.70 - Rehab)
Profit Projection: Your net profit = ARV - All Costs. Wrong ARV = wrong profit estimate
Financing: Lenders base loan amounts on ARV for fix-and-flip financing
Negotiation Power: Knowing true ARV lets you walk away from overpriced deals with confidence
Two Methods to Calculate ARV
Method 1: Comparable Sales (Most Accurate)
The gold standard for ARV calculation is using recent comparable sales (comps). Here's the step-by-step process:
1. Find 3-5 comparable properties
• Within 1 mile of subject property (0.5 miles in urban areas)
• Sold within last 90 days (not active listings)
• Similar size (±20% square footage)
• Same bed/bath count (or within 1)
• Similar condition after your planned renovations
2. Adjust for condition differences
• Excellent condition: +5% to sale price
• Good condition: No adjustment
• Fair condition: -5% to sale price
• Poor condition: -10% to sale price
3. Calculate average of adjusted comp prices
4. Apply conservative buffer (-5% for safety) if this is your first flip
Method 2: Online Estimates (Quick but Less Reliable)
Zillow, Redfin, and Realtor.com provide automated value estimates (AVMs). While convenient, these have limitations:
Pros:
• Fast - get estimates in 30 seconds
• No research required
• Good for initial screening
Cons:
• Can be 10-20% off actual value
• Don't account for specific renovations
• Based on old data in some markets
• Less accurate in rural areas
Best practice: Use online estimates for initial screening, but always verify with comparable sales before making an offer.
Real Example: ARV Calculation
Property: 456 Elm Street (3 bed, 2 bath, 1,800 sqft)
Comparable Sales:
Comp #1: 123 Oak St - Sold $295,000 (90 days ago, excellent condition) Adjusted: $295,000 × 0.95 = $280,250 (your property will be "good" not "excellent")
Comp #2: 789 Pine Ave - Sold $285,000 (60 days ago, good condition) Adjusted: $285,000 (no adjustment needed)
Comp #3: 321 Maple Dr - Sold $290,000 (45 days ago, fair condition) Adjusted: $290,000 × 1.05 = $304,500 (your property will be better)
Confidence level: HIGH - All comps within 5% range ($285K-$305K), recent sales, same neighborhood
Common ARV Mistakes
1. Using Active Listings Instead of Sold Comps
Active listings show asking price, not actual sale price. Homes often sell for 5-10% below asking. Only use sold properties from MLS.
2. Comps Too Far Away
A property 3 miles away in a different school district can have a 20% different value. Stick to 1-mile radius (0.5 miles in cities).
3. Old Comps (6+ Months)
In fast-moving markets, values can change 5-10% in 6 months. Use only the last 90 days of sales.
4. Ignoring Condition Adjustments
A fully renovated comp at $300K doesn't mean your "good condition" flip will sell for $300K. Adjust down 5% to $285K for condition difference.
5. Cherry-Picking High Comps
It's tempting to use only the highest comps to justify your offer. Use all appropriate comps and average them for accurate ARV.
How to Find Comparable Sales
Here are the best sources for finding recent sold comps:
1. Realtor.com - Free access to MLS sold data (90 days back)
2. Zillow - Shows recent sales in map view, includes sale prices
3. Redfin - Best UI for filtering comps by bed/bath/sqft/date
4. Your real estate agent - Full MLS access with detailed comp reports
5. County tax assessor - Public records of all sales (may be delayed)
When to Get a Professional Appraisal
Sometimes DIY ARV calculation isn't enough. Get a professional appraisal ($300-500) when:
• Your calculated ARV variance is over 10% (low confidence)
• Few comparable sales exist (rural area, unique property)
• Property has unusual features (large lot, pool, commercial zoning)
• You're investing $50K+ in rehab (protect against big losses)
• Lender requires it for financing approval
Next Steps
Now that you've calculated your ARV, use it to:
1. Calculate maximum offer using the 70% rule (ARV × 0.70 - Rehab)
2. Run full deal analysis to see net profit and ROI projections
3. Compare exit strategies (Wholesale vs Flip vs BRRRR)
4. Make confident offers knowing you have accurate numbers
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