64-City Intelligence Tour · Interactive Research

Research you can explore.
Models you can run.

Go beyond the published box score. Explore historical Boston–Providence condo prices, train a model in your browser, inspect its held-out error, and experiment with forecast horizons.

Launch Interactive Forecast Lab →Explore Published Research
BOSTON · AUG 2026$778,846

Last observed monthly condo-series value in the supplied research dataset.

PROVIDENCE · AUG 2026$436,391

Last observed monthly condo-series value in the supplied research dataset.

MODEL DEMONSTRATION80 months

Per city, January 2020–August 2026. Interactive fitting and a 12-month fixed-origin test.

How it works

From research to executable analysis.

01 / EXPLORE

Select your market

Switch between Boston and Providence, or compare their historical observations.

02 / TRAIN

Adjust the model

Change training history, regularization, and the forecast horizon; recalculate in-browser.

03 / EVALUATE

Inspect the evidence

Review MAE, MAPE, a naive benchmark, and the forecast table before interpreting results.

Independent experimental research. Forecasts are not appraisals, financial advice, or guarantees. This interactive demonstration uses a different evaluation design than the published 64-City Intelligence Tour research. Zillow did not produce, review, or endorse these forecasts.