The Address Index
Greenwich, Connecticut · Interactive market data

Greenwich Property Price Model Surprise Map

Map recent Greenwich sales that cleared above or below a chronological public-record price expectation and inspect each result.

Through April 2026
Map of recent Greenwich public sales in the untouched Synthetic Twin test set, colored by how far each actual sale cleared above or below its chronological public-record expectation.

Across 48 untouched recent test sales, the median result was -22.2% versus the pre-sale public-record expectation; 46 have verified public coordinates. Select a point in the interactive dashboard to inspect the sale. This is model-error context, not an appraisal or a neighborhood ranking.

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What this chart measures

The Model Surprise Map plots untouched recent test sales and colors each point by how far the actual price landed above or below its pre-sale public-record expectation.

How to read it

Green points cleared materially above the model, gold points below, and gray points near the expectation. The colors measure model error, not neighborhood quality or investment merit.

Why it matters

Patterns in model misses can reveal where public records are least complete and where private property features deserve additional investigation.

Latest reading: Across 48 untouched recent test sales, the median result was -22.2% versus the pre-sale public-record expectation; 46 have verified public coordinates. Select a point in the interactive dashboard to inspect the sale. This is model-error context, not an appraisal or a neighborhood ranking.

The Address Index is independent market intelligence based on public and source-linked records. It is not an appraisal, brokerage opinion, or investment recommendation.

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Greenwich Home Price Index: 2001 to PresentExplore the Greenwich CT Address Index, a repeat-sales home price index tracking the same single-family properties from 2001 to today. Greenwich Same-House Price TestCompare Greenwich repeat-sale price paths for homes with public evidence of major improvement and homes with no recorded major change. Greenwich Synthetic Twin Property ComparisonsExplore Greenwich Synthetic Twin estimates, earlier comparable public sales, modeled price ranges, and an interactive map. Greenwich Home Prices and Monthly Market LevelSee Greenwich CT monthly median sale prices alongside a steadier trailing 12-month market level for single-family homes. Greenwich Days on Market: How Fast Homes SellTrack how long Greenwich CT homes take to sell using recent Greenwich REALTORS data and a longer Realtor.com listing-time history. Greenwich Housing Inventory, Sales, and Market SpeedCompare Greenwich single-family inventory, monthly closings, and days on market in three aligned historical charts.
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