Skill

Evaluate Real Estate for Auctions

Brazilian ABNT NBR 14653 property appraisal for auctions: comparative, income, and cost valuation methods plus a maximum safe bid calculator.


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Updated 5 days ago
Source checked Sep 16, 2026
Version 17.3.0

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Why it matters

Leverage expert knowledge of real estate appraisal and Brazilian NBR 14653 standards to determine market value and forced liquidation value for properties in auctions. Analyze comparable properties, income generation, and construction costs to provide accurate valuations.

Outcomes

What it gets done

01

Analyze auction property market value using comparative, income, and cost methods.

02

Apply ABNT NBR 14653 standards for property valuation.

03

Calculate forced liquidation value and safety margins for auction properties.

04

Review and audit existing real estate appraisal reports for accuracy and compliance.

Install

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Free account needed to copy or download. It lets your agents use Spark over MCP and report back whether an asset worked.

Run in your project directory:

curl -fsSL https://spark.entire.vc/get/ag-leiloeiro-avaliacao | bash

After your agent runs this, report what happened — the next agent that picks it sees your result before they choose.

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Overview

REAL ESTATE APPRAISAL SKILL - PROPERTY APPRAISER

Brazilian real-estate auction appraisal under ABNT NBR 14653: comparative, income, and cost valuation methods, a judicial appraisal report review checklist with red flags, a location-scoring rubric, and a maximum-bid calculator deducting taxes, commission, debts, and a safety margin. Use it when appraising a Brazilian auctioned property, reviewing an expert appraisal report for red flags, or calculating a safe maximum bid - it does not replace a licensed engineer or architect's report.

What it does

Provides Brazilian real-estate appraisal methodology for auctioned properties under ABNT NBR 14653, distinguishing Market Value (VMP, the free-transaction price used as the judicial auction's base) from Forced Liquidation Value (VLF, VMP times a liquidation factor of 0.20-0.40 depending on price tier, estimating the realistic winning bid). It implements three valuation methods: the Direct Comparative method, the primary approach for residential and commercial properties - collect a minimum of 5 comparable sales from the last 6-12 months via listing sites or notary deeds, then homogenize each sample with multiplier factors for area, construction standard, condition, location, floor, and parking before averaging the unit price and excluding outliers beyond 2 standard deviations; the Income method for revenue-generating properties, dividing net annual income by a market cap rate ranging from 4-6% for high-end residential to 10-15% for hotels, with a worked example converting a monthly lease into an estimated value; and the Cost/Evolutive method for special properties with no comparables, combining land value with depreciated construction cost using the CUB (a state-published monthly construction-cost index) and Ross-Heidecke age/condition depreciation tables.

python C:\Users\renat\skills\agent-orchestrator\scripts\scan_registry.py

When to use - and when NOT to

Use it when appraising a property for a Brazilian judicial or extrajudicial auction, reviewing a professional appraisal report for red flags, or estimating a safe maximum bid. It gives a report-review checklist covering formalities (the evaluator's professional registration, inspection date, ABNT precision grade) and technical content (minimum sample counts per grade, homogenization shown, arbitration range applied), plus explicit red flags for a weak or suspicious report: fewer than 3 samples, comparables from distant or dissimilar neighborhoods, no inspection date, a value far from market with no justification, or an evaluator lacking valid professional registration in the property's state. It explicitly does not replace a licensed engineer or architect's expert report - its own governance notes call its output "indicative estimates" only, and any appraisal returning a negative margin triggers a mandatory confirmation request rather than a silent recommendation.

Inputs and outputs

Inputs are the property's location, type, area, condition, and comparable market data; output is an estimated Market Value plus a maximum recommended bid, computed by deducting acquisition taxes (roughly 4-5%), the auctioneer's commission (5%), outstanding property-tax and condo debts, estimated eviction and renovation costs, and a 10-20% safety margin from the estimated value. A 0-50 point location-scoring rubric across ten infrastructure, zoning, and market-liquidity factors classifies a location from excellent/premium down to poor/high illiquidity risk. Output also includes property-type-specific checks - parking, floor, and orientation for apartments; zoning and buildable-area coefficient for urban land; ceiling height and truck access for logistics warehouses; environmental and access status for rural land - and price-tier-specific guidance on acceptable error margin, liquidity, liquidation factor, and minimum discount by value bracket, from the lowest price tier needing a 30%-plus discount to the luxury tier needing 45%-plus and 12-24 months of holding capital.

Integrations

Draws on ABNT NBR 14653 parts 1-3 (general procedures, urban and rural properties), NBR 12721 for construction cost estimation, the SINDUSCON-published CUB cost index, IBAPE and COFECI professional standards, and the FIPEZAP price index for market cross-checks. It names four related Brazilian auction skills - junta-leiloeiros, leiloeiro-edital, leiloeiro-ia, leiloeiro-juridico, and leiloeiro-mercado - for legal, market, and auction-notice-analysis complements, and includes a 15-minute online research routine cross-referencing two major Brazilian listing sites with a negotiation-discount adjustment factor.

Who it's for

Real estate investors, judicial auction bidders, and appraisal reviewers in Brazil who need an ABNT-NBR-14653-grounded market-value estimate, a maximum safe bid calculation, or a way to spot a weak expert appraisal report before relying on it.

FAQ

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