InSAR monitoring for property
Ground movement affects property value, insurability, and habitability. Whether you're a landlord managing a portfolio, a developer assessing acquisition targets, or an insurer evaluating claims, understanding subsidence risk requires objective measurement data.
Portfolio monitoring
Large property portfolios face the challenge of identifying problems across dispersed assets.
InSAR provides systematic screening, flagging properties showing displacement that warrants further investigation.
This proactive approach catches problems early, when remediation costs are typically lower.
London City Island - a collection of residential highrise buildings on a peninsula in the River Lea. The hard surfaces of the infrastructure provide strong and stable radar reflectors.
InSAR results for 2015-2018 (movement scale is anonymised). Ground and building movement is an issue here due to underground infrastructure immediately below, including Crossrail.
Heritage and listed buildings
Historic structures are often particularly vulnerable to ground movement, with limited tolerance for differential settlement.
InSAR monitors these sensitive buildings without any physical intervention, tracking changes over time and identifying early warning signs before damage becomes visible.
Development and construction
New construction can affect neighbouring properties through changes to ground loading, drainage, or groundwater.
InSAR monitoring before, during, and after development creates an objective record that protects both developers and neighbours, documenting baseline conditions and any subsequent changes.
Pre-acquisition due diligence
Ground stability should be assessed before any significant property transaction.
InSAR analysis of historical satellite data reveals how a site has behaved over decades, identifying past movement that might indicate ongoing risk.
This objective evidence supports informed purchase decisions and appropriate pricing.
Insurance applications
Subsidence claims require clear evidence of ground movement and its causes.
InSAR provides independent measurement data that supports both claim assessment and dispute resolution.
For underwriters, portfolio-scale InSAR analysis enables more accurate risk pricing based on observed ground behaviour rather than geological proxies alone.
Housing associations
Social housing portfolios often include older stock in areas with challenging ground conditions.
InSAR enables systematic assessment of subsidence risk across large portfolios, supporting maintenance prioritisation and long-term investment planning.
Housing estate in Canning Town. InSAR results for 2015-2018 (movement scale is anonymised).
The high density of strong and stable radar reflectors (buildings, roads, railways, bridges) in urban areas makes InSAR very useful in these locations.