Overview
Clarifying property tax decisions
Real estate data that drives an accurate evaluation of cost is at the heart of the property market. From appraisers and assessors to lenders, tax services, and insurers, verifying today’s construction costs — and preparing for tomorrow’s — is essential. That’s why for over 90 years, Cotality's Marshall & Swift has been trusted to provide experts with the industry’s most extensive, up-to-date, and objectively validated replacement cost values. We offer residential, commercial, industrial, and agricultural costing data tailored to your industry and customized to your needs.
Trusted and defensible property data
Marshall & Swift’s cost data is rigorously tested and trusted across the U.S. and Canada, written into legislation in 30+ states, ensuring reliable, defensible valuations for all industries.
Triple-validated valuations
Since 1932, Marshall & Swift has used three rigorous validation methods to ensure accurate, consistent valuations, preventing inflated costs and keeping data aligned with construction cost trends.
Reliable and repeatable methodology
Marshall & Swift continuously updates cost data with expert insights and market research, providing consistent, accurate valuations and reliable replacement cost comparisons across the U.S. and Canada.
Trusted and defensible property data
Marshall & Swift’s cost data is rigorously tested and trusted across the U.S. and Canada, written into legislation in 30+ states, ensuring reliable, defensible valuations for all industries.
Triple-validated valuations
Since 1932, Marshall & Swift has used three rigorous validation methods to ensure accurate, consistent valuations, preventing inflated costs and keeping data aligned with construction cost trends.
Reliable and repeatable methodology
Marshall & Swift continuously updates cost data with expert insights and market research, providing consistent, accurate valuations and reliable replacement cost comparisons across the U.S. and Canada.
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40-60%
Studies show 40-60% of property tax appeals lead to reduced assessments, underscoring the need for accurate property valuations.
↑45%
Home prices jumped 45% since 2020, making accurate replacement costs essential for valuations in fast-changing markets.
↑18%
U.S. house prices surged 18% in 2021, highlighting the importance of Marshall & Swift's cost approach for accurate valuations in changing markets.
