Methodology & Sources
Portugal Property Check combines user-provided property information, financial assumptions, planning confidence, development constraints and market reference data to provide a preliminary feasibility assessment. The methodology is informed by professional experience in architecture, real estate, property development and Portuguese municipal planning.
Automated preliminary assessment based on a professionally developed methodology.
What the assessment uses
- User-provided property information
- Planning confidence indicators
- Construction cost assumptions
- Market reference data
- Official data references where available
- Financial feasibility calculations
- Sensitivity analysis
- Project duration and annualised ROI
How the assessment is read
- Planning & Buildability weighs the planning basis, capacity clarity, material constraints, geometry and information completeness.
- Financial & Market Confidence weighs profitability, sensitivity, alignment with official market references and input confidence.
- The Overall Development Assessment interprets both dimensions together and is not a simple average.
Exact weights, point allocations, thresholds and internal rules are proprietary and are not published. Every report states the evidence, the assumptions and the main drivers behind each result.
Reference sources
Official market reference (median dwelling sale prices)
Reference period: 2025 Q4 · Geographic level: Municipality (parish where available) · Updated: 30 June 2026
Construction cost assumptions — reference ranges from market tender data
Reference period: 2026 · Geographic level: National, adjusted by project type · Updated: 01 August 2026
Planning confidence indicators — user-declared source of the permitted GFA
Reference period: Per assessment · Geographic level: Property level · Updated: 01 August 2026
Data last updated: 01 August 2026
Data source names are shown as plain text labels. No institutional logos are reproduced and no institutional endorsement is implied.
Limits of this assessment
Reference information is indicative only. Planning capacity, constraints and permitted uses must be professionally confirmed before acquisition — through the municipality, a PIP or a qualified professional.