Most wholesalers comp properties by pulling three nearby sales, averaging the price per square foot, and calling it a day. Professional appraisers use a systematic 8-step process that accounts for market conditions, property structure, feature differences, and location nuances. The difference between these approaches is the difference between a listing that closes and a listing that falls apart at the investor's inspection.
This playbook breaks down the full methodology, including the adjustment tables and decision frameworks that professional compers use to produce ARVs within 2-4% of final sale price.
Step 1: Gather Subject Property Information
Before pulling a single comp, collect every detail about the subject property. Missing even one variable introduces error that compounds through the entire analysis.
Required data points:
- Full address and zip code
- Square footage (above-grade only)
- Bed count, full bath count, half bath count
- Year built and lot size
- Construction material (wood frame, block/brick, concrete block)
- Property type and structure (ranch, 2-story, colonial, split-level)
- Key features: garage (1/2/3-car), carport, pool (in-ground/above-ground), basement, ADU, guest house
- Waterfront status, proximity to highways, commercial buildings, train tracks
Condition scoring (1-10 scale):
- 1-2: Tear down or fire/foundation damage
- 3-4: Needs everything or hoarder condition
- 5-6: Dirty or dated
- 7-8: Rentable or clean
- 9-10: Recently remodeled or new construction quality
Step 2: Assess Market Conditions
There is no national home market. There are regional real estate markets. Every metro and submarket behaves differently. Always analyze the specific area.
Market type by inventory
- Investor's market (6+ months inventory): Prices may be declining. Use ONLY comps from the last 90 days. Decrease ARV by 5% if active listings sit 90+ days.
- Seller's market (<3 months inventory): Prices trending up. Comps up to 6 months old are acceptable.
- Neutral market (3-6 months): Use 90-day to 6-month comps.
Demand classification
- High appreciation, high demand (LA, Boston, Hartford CT, Upstate NY): Do not lowball. Investors bank on appreciation. Even in downturns, demand stays relatively strong.
- Modest appreciation, modest demand (Midwest markets like Minneapolis): Steady, not volatile. Somewhat aggressive pricing works.
- Low appreciation, low demand (Mobile AL type markets): Investors buy for cash flow. Be conservative. Use 65% or lower for MAO.
Sale-to-list price ratio confirms your assessment: above 100% = hot seller's market. 95-100% = balanced. Below 95% = investor's market with significant negotiating room.
Step 3: Find Comparable Sales
Pull Sold, Pending, AND Active comps. Apply these filters in order of importance.
Priority 1: Location (most important)
- Same subdivision. Subdivisions are bounded by major roads.
- Do not cross any major roads (thick white lines, yellow lines, major intersections).
- Stay in the same zip code, maximum 0.5-1 mile radius.
- Match neighborhood demographics. A working-class area and a luxury area 1 mile apart can have 50%+ price gaps. Use Street View to verify.
Priority 2: Property and structure match
- Same property type (SFR with SFR, duplex with duplex, condo with condo).
- Same property style (ranch with ranch, 2-story with 2-story).
- Match the front-side silhouette shape and curb appeal layout.
Priority 3: Size and age
- Within +/- 10% of subject square footage. Dollar per square foot extrapolation is only valid within this 10% band.
- Lot size within 2,500 sqft of subject lot.
- Year built within +/- 10 years. Pre-1930 builds: max comp year is 1940. 2005+ builds: stay within +/- 5 years.
Priority 4: Construction material
- Match material type. If subject is wood frame and only block comps exist: adjust ARV down 10-20%.
Priority 5: Condition
- Comps must be fully renovated or like-new condition (8-10 on the condition scale).
Distance vs time trade-off
In hotter markets, prioritize staying closer geographically even if comps are older. In cooler markets, prioritize more recent comps even if farther away. The hotter the market, the closer you stay and the farther in time you can go.
Step 4: Check Active Comps for Contradictions
This is the step most people skip. After analyzing sold comps, check active listings.
If sold comps justify a $450K ARV but a fully renovated active comp is listed at $440K and has been sitting 90+ days: adjust down 10% from the listing price ($440K x 0.90 = $396K is your new ARV).
The 90-day DOM rule: If active listings in the area average 90+ days on market, decrease your ARV by 5%. This signals the market is cooling.
Pending comps: Pendings show market direction but not exact pricing. A property listed at $400K that sat 110 days before going pending is probably under contract at $320-$360K. Call the listing agent to verify.
Step 5: Apply Adjustments
Use percentage-based adjustments relative to the subject property's estimated price. This scales correctly across all price ranges.
Feature adjustment table
| Feature | Under $600K | Over $600K | Notes |
|---|---|---|---|
| Bedroom | +/- $10K-$25K | +/- $25K+ | 5-bedroom houses: +/- $5K only |
| Full bathroom | +/- $10K | +/- $10K-$15K | Half-bath = +$5K |
| 2-car garage | +/- $10K-$25K | +/- $25K+ | Converted garage = -$15K |
| Carport | +/- $5K-$10K | +/- $10K | Climate-dependent |
| In-ground pool | +/- $10K-$25K | +/- $25K-$100K | Above-ground pool = $0 value |
| Lot size | +/- $5K-$10K per 5K sqft | +/- $30K-$50K per 5K sqft | Subtract if unusable |
Climate impact on parking
In extreme hot climates (Phoenix, Las Vegas) or extreme cold climates (Minneapolis, Chicago), covered parking is significantly more valuable. Garage in extreme climate: $25K (vs $10K in moderate climates).
Proximity adjustments
You can only adjust downward when the subject has the adverse feature. Under $600K: siding -$15K, backing -$20K, fronting -$30K. Over $600K: siding -15%, backing -20%, fronting -25% to -30%.
View and elevation
Views are the single largest variable in many markets. Mountain/ocean/lake view: +$50K-$100K under $600K, +10-20% over $600K. In hillside areas, compare only properties on the same street and same side of the street.
Step 6: Calculate ARV
Use a blended approach, not just price per square foot.
- Start with the average of adjusted sale prices of the top 3 most similar renovated comps.
- Use price per square foot as a secondary reference only.
- Apply all adjustments from Step 5.
- Cross-check against active comp analysis from Step 4.
- Make final adjustments for property uniqueness and market sentiment.
Investor's market buffer: In declining markets, use the conservative end of your ARV range. Present ARV as a range to your investor. Factor in 3-6 months of potential decline.
Step 7: Estimate Repairs
Based on condition score:
- Score 8-10: $0-5/sqft (touch-ups only)
- Score 6-7: $15-25/sqft (cosmetic update)
- Score 4-5: $25-40/sqft (medium rehab: kitchen, baths, flooring)
- Score 3: $40-60/sqft (heavy rehab)
- Score 1-2: $60-100+/sqft (full gut or rebuild)
Luxury renovation: $75-120+/sqft regardless of score.
Step 8: Calculate Maximum Allowable Offer (MAO)
MAO = (ARV x Investment %) - Repair Costs - Your Wholesale Fee
| Market condition | Investment % | Reasoning |
|---|---|---|
| Hot seller's market | 75-80% | Investors accept tighter margins for appreciation |
| Normal market | 70% | Standard wholesaling formula |
| Cold/investor's market | 65% | Extra cushion for declining prices |
| Risky/transitional area | 60-65% | Structural or neighborhood uncertainty |
The 30% discount in the 70% rule breaks down to: 4-5% for 6 months of holding costs, 1% for investor's closing costs, 3% for seller's closing costs when they resell, 1-2% risk hedge, and roughly 20% profit margin for the investor.
Typical wholesale fee: $10K-$15K per listing. Rule of thumb: up to 50% of the investor's projected profit.
Comp Selection Priority (When Perfect Comps Don't Exist)
- Nearest time sold AND nearest area (recency + location)
- Property type and structure match
- Nearest square footage and year built
- Construction material type
- Other adjustments (pool, garage, waterfront, proximity)
Walk-away discipline: If the seller's asking price exceeds your MAO, you have three options: renegotiate with better terms, ask for seller concessions, or walk away. Never fudge numbers to force a bad listing.