Purpose of This Tool
This calculator provides estimates only for informational and research purposes. It is designed to help property owners understand the potential impact of proposed transmission line infrastructure on property values.
What This Tool Is NOT
- This is not a professional property valuation
- This is not legal, financial, or investment advice
- Results should not be relied upon for property transactions, mortgage applications, legal proceedings, or financial decisions
Methodology & Limitations
The depreciation percentages used in this calculator are derived from published academic research on the impact of high-voltage transmission lines on property values. However:
- Every property is unique and actual impacts will vary
- Local market conditions significantly affect real-world values
- Property location data is sourced from OpenStreetMap and may contain inaccuracies
- The transmission line routes shown are based on proposed plans which may change
⚠️ If you require a formal property valuation for any purpose, please consult a RICS-registered surveyor or qualified independent valuer.
Limitation of Liability
The creators of this tool, its volunteers, affiliated action groups, and any parties distributing this tool accept no liability whatsoever for any decisions made, actions taken, or losses incurred based on results from this calculator.