Home Worth Estimator
Get a data-driven estimate of your home's current market value based on location, size, condition, and recent comparables.
Estimate your home's value
Based on local market data, property characteristics, and recent comparables.
Used for regional market adjustments.
How to use this calculator
- Enter your ZIP code—this anchors the estimate to your local market.
- Pick your property type (single family, condo, townhouse, multi-family).
- Enter year built, square footage, and lot size—these are the core physical attributes.
- Select bedroom and bathroom counts—more of each typically adds value.
- Choose your home's condition—be honest; this affects the estimate materially.
- Enter annual area appreciation—check recent local reports or use 3–5% as a default.
- Click Estimate to get a low–mid–high range with a full breakdown.
How home value estimation works
Home value estimation combines three approaches: comparable sales (comps), cost approach, and income approach (for rentals). Our estimator primarily uses a refined version of the comps approach layered with property-specific adjustments—the same methodology licensed appraisers use for the Sales Comparison Approach.
The base price-per-square-foot
We start with a regional baseline price per square foot, derived from recent median sales in your ZIP code. For example, if the median home in 90210 sells for $2.5M at 2,500 sq ft, the base price is roughly $1,000/sq ft. We multiply this by your home's square footage to get the base value before adjustments.
Property-specific adjustments
Once we have the base value, we apply percentage adjustments for each factor that differs from the typical home:
- Bedrooms: +2–4% per bedroom above the local median (typically 3).
- Bathrooms: +3–5% per full bathroom above the median (typically 2).
- Lot size: +0.5–1% per 1,000 sq ft above the local median lot.
- Condition: Excellent +5–10%, Good baseline, Fair −5–10%, Poor −15–25%.
- Age: Homes built within the last 10 years receive a small premium; homes older than 50 years receive a small discount unless renovated.
- Property type: Condos typically sell for 70–85% of single-family values in the same area; townhouses sit between.
Why estimates are a range
No estimator can know your home's exact value without seeing it. Real estate is local and idiosyncratic—a remodeled kitchen, a finished basement, a great view, or street noise can all shift value by tens of thousands. We provide a low–mid–high range (typically ±5–10% from the midpoint) to reflect this inherent uncertainty. The low end assumes average condition for the area; the high end assumes above-average updates.
Limitations of online estimates
Online estimators—including ours—cannot replace a comparative market analysis (CMA) from a local agent or a formal appraisal. They don't account for interior condition, recent renovations, lot orientation, neighborhood micro-trends, or unique features (pool, ADU, smart home systems). Use the estimate as a starting point, then verify with a local agent before making any decisions to sell, refinance, or remove PMI.
Worked example
Scenario: A 2,000 sq ft single-family home built in 2005 in ZIP 90210, 3 beds, 2 baths, 6,000 sq ft lot, in good condition, with 4% annual appreciation.
- Base price/sq ft (90210): ~$1,000/sq ft
- Base value: 2,000 × $1,000 = $2,000,000
- Bedrooms (3 = median): $0
- Bathrooms (2 = median): $0
- Lot size (6,000 sq ft, +10% over 5,500 median): +$20,000
- Condition (good): $0 (baseline)
- Age (19 years old, slight discount): −$10,000
- Property type (single family): No adjustment
Estimated value: ~$2,010,000 with a range of $1,910,000–$2,110,000 (±5%).
In a less expensive ZIP code like 30309 (Atlanta), the same home at $250/sq ft would estimate around $510,000—a reminder that location drives value more than any other factor.
Glossary
- Comparables (Comps)
- Recently sold properties similar to yours in size, condition, and location—used to estimate market value.
- CMA
- Comparative Market Analysis—a free report from a real estate agent showing recent comps and a suggested listing price.
- Appraisal
- A formal valuation by a licensed appraiser, required by lenders for purchases and refinances.
- LTV (Loan-to-Value)
- Your loan balance divided by home value. Lower LTV unlocks better rates and removes PMI.
- Equity
- Your home's market value minus your mortgage balance—your true ownership stake.
Frequently asked questions
Quick answers to the most common questions about home worth estimator.
This calculator is provided for informational and educational purposes only and does not constitute financial, legal, tax, or professional advice. Results are estimates based on the inputs you provide and standard assumptions. Actual figures may vary. Please consult a qualified professional before making financial decisions. Read our full disclaimer.