Novarly Parcel · Manhattan

Is Upper West Side sinking?

What satellite radar actually measures across Upper West Side — and what it means for your address.

-1.08 mm/yr
median ground motion
-2.52 mm/yr
fastest-sinking spot
0%
of measured spots moving ≥3 mm/yr

Across 427 measured locations in and around Upper West Side, the median ground motion is -1.08 mm/yr (negative = sinking). The fastest-moving measured spot is subsiding at -2.52 mm/yr, and 0% of measured locations exceed the 3 mm/yr "notable" threshold. Rates vary block by block — check your exact address:

Screening only — not a structural guarantee. For any decision, consult a licensed geotechnical engineer.

More in Manhattan:

Financial DistrictMidtownUpper East SideHarlemEast Village

Statistics computed from Ohenhen (2025) NYC–Long Island vertical land motion (Zenodo doi:10.5281/zenodo.17644691, CC-BY-4.0). Screening only — see methodology.