Why Zillow's Zestimate Is Almost Always Wrong
Zillow's own published data shows a median error rate of 2.4% for on-market homes and 7.5% for off-market homes. On a $2M La Jolla home, that's a $150,000 swing — in either direction. Zestimates rely on public records (often outdated), don't see your upgrades, don't see your condition, and don't understand micro-locations like a view lot vs the lot behind it.
What Actually Determines Your Home's Value
- Location micro-factors — view, street, school boundary, distance to coast
- Condition — updated kitchen/bath vs original 1985
- Floor plan — single-story premiums, primary-on-main, open layouts
- Lot — usable yard, pool, ADU potential
- Recent comparable sales — last 90 days, ½-mile radius
- Active competition — what you're competing against right now
- Pending sales — the leading indicator of where prices are headed
What a Real Comparative Market Analysis (CMA) Includes
- 5–8 recent comparable sold properties (last 6 months max)
- All current active competition
- Pending sales (the most predictive data point)
- Adjustments for square footage, beds/baths, lot size, condition, view, age
- A defensible suggested list price range with strategic options (aggressive, market, conservative)
- A seller's net sheet — what you'll actually take home
DIY Estimate (Rough)
- Pull 3–5 sold homes within ½ mile, last 90 days, similar size/beds/baths
- Calculate average $/sqft
- Multiply by your home's sqft
- Adjust ±5–10% for condition, view, lot
This will get you within 10–15%. For real money decisions, get a professional CMA.
San Diego 2026 Median $/sqft Snapshot
- La Jolla: $1,400–$2,200/sqft
- Del Mar: $1,500–$2,400/sqft
- Solana Beach: $1,200–$1,800/sqft
- Encinitas: $1,000–$1,500/sqft
- Carlsbad: $850–$1,300/sqft
- Carmel Valley: $900–$1,200/sqft
- Rancho Santa Fe: $900–$1,800/sqft (lot-dependent)
Free Professional Valuation — No Obligation
I'll personally walk your home, build a true CMA, and give you a defensible value range with strategic pricing options. No high-pressure pitch — many of my valuations go to people who don't sell for 12+ months. Request your free valuation →
