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Willow 25 m from House: No Subsidence Risk

Distance Eliminates Foundation Threat

Willow roots extend ~1.5× canopy width. At 25 m (82 ft) with subsidence on opposite side of house, tree is not the cause. Fibrous roots at that distance are too small to affect foundations.

Real Culprit

Subsidence likely from soil shrink‑swell (clay), drainage changes, or nearby excavation—not the willow.

Trees: Weeping Willow Red Spiky Patches: Adventitious (Air) Roots, Not Borers—Harmless, Dry Up; Is Your Mature Willow Tree Dead? Construction Damage and How to Check; Dealing with Tree Roots in the Lawn: Removal and Prevention; Tree Roots Lifting Pavers: Switch to Gravel or Raise Patio; Ash Tree Surface Roots: Cover, Don't Cut; West Indies Mahogany Surface Roots Near Sidewalk: Root Barriers Better Than Cutting; Weeping Willow Near House & Drain: Root Concerns & Growth Regulators; Willow Oak Too Close to House: Transplant Advice; Transplanting Willow Root Sprouts in Sandy Soil; Killing a Willow Stump to Stop Root Damage to Neighbor's Foundation

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