Property valuation
Produce in 30-45 minutes an argued defendable property valuation.
Valuation is the founding act of the mandate: too high, property stagnates; too low, seller is unhappy. AI lets you accelerate comparable collection, area statistical analysis, and writing of an argued opinion of value. Agent's field knowledge stays central. This guide presents the professional workflow.
Step-by-step workflow
Precisely characterize property
Surface, general state, features, assets (view, light, floor, exposure), visible defects (work to plan, nuisances). Photos and plans help AI value better.
Collect comparables
Recently sold properties in area (real estate databases) with same characteristics. AI can analyze and identify most relevant comparables.
Calculate estimate range
Median $/m², adjustments for assets/defects, comparison with currently for-sale properties (concurrent supply). Range = motivated min + optimum.
Write opinion of value
Professional document: property description, methodology used, retained comparables with justification, argued estimate range, market conditions.
Present to seller with arguments
Estimate must be defended: prepare 3 factual arguments to explain proposed price, anticipate 3 likely seller objections.
Copyable prompts
2 tested and optimized prompts. Adapt the bracketed variables [VARIABLE] to your context.
Argued valuation
You're an experienced real estate agent. Value this property: **Characteristics**: [TYPE / SURFACE / ROOMS / STATE / FEATURES] **Address / neighborhood**: [DESCRIPTION] **Assets**: [LIST] **Defects**: [LIST] **Comparables current sale date**: - [PROPERTY 1]: [PRICE / SURFACE / DATE] [...5-10 comparables] **Current market conditions**: [SELLER/BUYER, AVERAGE SALE DURATION, 12-MONTH EVOLUTION] Produce: 1. **Median $/m²** of comparables 2. **Adjustments**: +/- for each asset/defect vs comparables 3. **Estimate range**: minimum (-5%), median, optimum (+5%) 4. **Range justification** (5 lines) 5. **Arguments** to defend estimate (top 3) 6. **Deviation risks** and probability Mark [TO REFINE WITH VISIT] anything requiring on-site.
Formalized opinion of value
From this estimate: [ESTIMATE] Produce a 1-page opinion of value: 1. **Property identification** 2. **Synthetic description** 3. **Methodology**: comparison approach, retained comparables (4-6) 4. **Calculations**: adjusted $/m², range 5. **Market conditions**: area trend, average sale duration 6. **Estimate**: range in round numbers + recommended sale price 7. **Limits**: what could vary (visit, real state, negotiation) Professional document, factual tone, signable.
Top tools for this use case
Curated selection of the 3 best AI tools for property valuation.
Why for this use case: Most rigorous for argued estimates and producing professional opinions of value.
Why for this use case: For local market watch: real estate databases, $/m² per neighborhood, recently sold properties, trends.
Why for this use case: Code Interpreter for statistical calculations (median, std dev, adjustments) and quickly generating charts.
Estimated ROI
Time saved
60% on valuation (30-45 min vs 1-2h)
Quality gain
Argued defendable estimate, professional opinion of value
Stack cost
$20-50/month for the stack
Estimates based on 2026 benchmarks and user feedback. Actual ROI depends on your context.
Frequently asked questions
Can AI value as well as an agent?
For standardized properties (classic apartment in tight market): yes within 5-10%. For atypical properties (character, hidden defects, specific area): no, field knowledge stays irreplaceable. AI gives starting range, agent refines.
Estimate error risk?
Always possible. AI can over-value a degraded property based on comparables alone, or undervalue high-potential property. Physical visit stays mandatory.
Which data for comparables?
Free official real estate databases. Premium sources for enriched analyses. Always cross-check multiple sources and adapt to current market conditions.
Is AI valuation legally engaging?
Opinion of value engages the agent who signs it, not AI. Always validate and sign humanly. For really engaging valuations (estate, divorce, taxation), a real estate expert remains recommended in complement.