Value-Add Rental Analysis on Zillow (Without Leaving the Listing)

Value-add investing means buying below stabilized value, improving the asset, and raising rent. On Zillow, those deals often look terrible at current rent and great at post-rehab rent—if you model both correctly.

Realy lets you enter renovation and rent assumptions without leaving the listing.

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Value-Add vs. Turnkey Metrics

All-In Cost = Purchase Price + Closing Costs + Renovation
Stabilized Cap Rate = Stabilized NOI ÷ ARV (or all-in cost)

See also: BRRRR on Zillow guide.

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Step 1: Spot Value-Add on Zillow

Listing signals:

• "Fixer," "investor special," "needs TLC"
• Below-neighborhood price per sqft
• Dated photos but solid location
• Long days on market + price cuts
• Rent Zestimate below what renovated comps fetch

Open Realy analyzer on the search page to find low price/sqft outliers with strong rent/sqft potential (rent-to-price ratio).

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Step 2: Model As-Is in Realy (Baseline)

Use current Rent Zestimate and zero renovation first:

• Note as-is cap rate and CoC (often unimpressive)
• This is your "do nothing" scenario

Default assumptions: 20% down, 1% closing, 6.5%, 2% tax.

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Step 3: Add Renovation in Assumptions

Realy supports renovation as:

• $ lump sum (total rehab budget)
• $ per sqft × living area

Renovation Total = Renovation $/sqft × Living Area
Total Cash Down = Down Payment + Closing Costs + Renovation
Total Property Cost = Purchase Price + Closing Costs + Renovation
Loaded Cap Rate = NOI ÷ Total Property Cost

Example: $109,900 purchase · 1,296 sqft · $25/sqft rehab

Renovation = $32,400
Total cash down ≈ $54,000 (with 20% down + 1% closing)

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Step 4: Adjust Rent to Stabilized

Replace Rent Zestimate with post-renovation comp rent:

• Search Zillow for renovated rentals nearby
• Use PM rent estimate
• Enter new monthly rent in Realy

Watch stabilized NOI, cap rate, and CoC update instantly.

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Step 5: Evaluate the Spread

If stabilized numbers don't clear your hurdle after realistic rehab budget, pass—no matter how good the photos could look.

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Step 6: BRRRR Overlay (Optional)

If refinancing out capital:

• Model stabilized NOI for lender DSCR
• Estimate ARV from sold comps (not Zestimate alone)
• Target cash left in deal post-refi

Full BRRRR framework: BRRRR on Zillow.

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Value-Add Red Flags

• Rehab estimate too low (always add 10–20% contingency)
• ARV from Zestimate without sold comp support
• City permit / certificate of occupancy issues
• Structural issues visible in listing photos

→ 10 red flags on Zillow

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Run Value-Add Analysis Without Leaving Zillow

1. Listing page → Realy mini side panel
2. Calculator icon → set renovation $/sqft or lump sum
3. Override rent to stabilized comp
4. Check loaded cap rate (uses total property cost)
5. Detailed analysis for full report

**Install Realy →