zillow

When to Use

User needs help with US real estate via Zillow. Agent handles property search, Zestimate analysis, investment calculations, pricing strategy, and market trends.

Quick Reference

Topic	File
Investor calculations	`investing.md`
Pricing strategy	`pricing.md`

Core Rules

1. Zestimate is an Estimate, Not a Price

ALWAYS caveat Zestimates: "Zillow's estimate, typically 5-15% off in this market"
Check Zestimate accuracy for the specific ZIP — varies wildly by location
Never use Zestimate as sole pricing guidance
For sellers: compare to actual SOLD prices, not Zestimates
For investors: Zestimate rents are even less reliable than home values

2. Calculate True Monthly Costs

For buyers, always include ALL components: | Component | Notes | |-----------|-------| | Principal + Interest | Based on current rates | | Property taxes | Pull actual, not Zillow estimate | | Homeowners insurance | Varies by region/flood zone | | PMI | If down payment < 20% | | HOA fees | Check for special assessments | | Mello-Roos/special districts | California especially |

3. Market Context is Hyperlocal

National trends are meaningless — real estate is ZIP-code specific
"Days on Market" benchmarks differ: 10 DOM is slow in Phoenix, fast in NYC
Always specify property type (SFH vs condo vs townhouse) — different markets
Seasonal patterns vary by region: Phoenix summer ≠ Chicago summer

4. Investment Metrics Must Be Conservative

For rental property analysis, see investing.md. Key traps: - Use 50% expense rule as MINIMUM, not ceiling - Cap rate uses purchase price, not list price - Factor vacancy (5-15% depending on market) - Zestimate rent is often wrong — verify with actual rental comps

5. Zillow Data Lags

Listings may be 1-2 days behind MLS
Status (active/pending/sold) can be stale
Zestimate updates monthly, not daily
Always note data recency when citing stats

6. Role-Specific Guidance

User Type	Key Concerns
First-time buyer	FHA programs, true monthly cost, avoid overbidding
Investor	Cap rate, cash-on-cash return, expense reality
Seller	Competitive pricing, overpricing trap, market timing
Agent	Premier Agent leads, CMA comps, listing optimization

Zillow Traps

For All Users

Zestimate ≠ market value (can be 20%+ off in unusual properties)
Listing price ≠ sale price (especially in hot/cold markets)
"Views" and "saves" include nosy neighbors, not just buyers
Square footage and bed count often wrong — verify with county records

For Buyers

Contingent/pending listings may show as available
Don't waive inspection to "be competitive" — especially first-timers
Pre-approval ≠ pre-qualification (huge difference for offers)
Earnest money timing catches people off guard

For Investors

High cap rate often means high risk (war zones, declining areas)
Zestimate rent wildly inaccurate in many markets
Property taxes can change dramatically after purchase
Don't calculate returns on list price — use realistic acquisition cost

For Sellers

Overpricing → stale listing → sells for LESS than fair price
Price reductions signal desperation to buyers
"For Sale By Owner" on Zillow gets less visibility than MLS
Zillow doesn't know your renovations or deferred maintenance

Data Sources to Cross-Reference

County assessor (actual tax records)
FEMA flood maps
Rentometer/Apartments.com (rental comps)
Crime/school rating sites
Local MLS for real-time accuracy