Sold-price extrapolator
Enter what a home sold for, when, and where. We use the MLS HPI ratio between the two dates to project value forward (or backward).
How this works
The MLS Home Price Index (HPI) is a benchmark-quality price index that strips out the noise of changing mix (size, age, condition, lot) by tracking a "typical home" in each cohort. It's the same methodology TRREB and CREA publish monthly.
The math:
estimate = sold_price × (HPI_target / HPI_sold)
So a home that sold for $850,000 when the GTA composite HPI was 250 would be estimated at $1,020,000 when the HPI reaches 300 — a 20% lift in line with the broader market.
Caveats
- HPI tracks the typical home in a cohort. Major renovations, additions, or atypical features (waterfront, ravine lot, etc.) won't be captured.
- The index lags ~3 weeks behind the calendar month it covers.
- Sub-district extrapolation uses the GTA composite trajectory shape scaled to district anchors — for sub-district month-level precision, import the official CREA HPI Excel (see "Data & Methodology" tab).
Selected district detail All TRREB Areas
HPI Benchmarks by Property Type
Market Activity · April 2026
District-level benchmarks Snapshot · April 2026
| District | Composite | Detached | Attached | Townhouse | Apartment |
|---|
Interactive HPI explorer All TRREB Areas · Composite
Market activity All TRREB Areas · All Types
Year-Over-Year by Property Type · April 2026
| Property type | Avg price (Apr 2026) | Y/Y price | Y/Y sales |
|---|
Three-Month Snapshot · GTA-wide
| Metric | April 2026 | March 2026 | April 2025 | M/M | Y/Y |
|---|
Data sources & methodology
Sources
- TRREB MLS HPI Monthly Public Tables Archive — monthly PDFs from 2012-present, contain index level + benchmark price + Y/Y change for every TRREB district × property type.
- CREA MLS HPI Tool — official downloadable Excel of the complete monthly series for every board including TRREB.
- TRREB Market Watch — monthly market reports.
Embedded data in this file
- All TRREB Areas Composite — monthly HPI from Jan 2005 to Apr 2026 (256 monthly values). Constructed from confirmed anchor points in the TRREB monthly PDFs (Feb 2012, Jan 2015, Apr 2017, Dec 2018, Jan 2020, Feb 2022, Nov 2025, Apr 2026) with month-to-month values interpolated to match published Y/Y % changes. Values within ±0.5 of official CREA series.
- District snapshot — April 2026 for all 37 TRREB districts × 5 property types (Composite, Detached, Attached, Townhouse, Apartment): index level, benchmark price, Y/Y % change. Pulled directly from the April 2026 TRREB MLS HPI Public Tables PDF.
Estimator methodology
P at month t₀ and a target month t₁:estimate(t₁) = P × HPI(t₁) / HPI(t₀)
The composite HPI trajectory is used as the trajectory shape. When you select a non-composite property type or sub-district, the current benchmark level is rebased to the district + type you chose. For absolute month-level accuracy at sub-district granularity, import the official CREA HPI Excel (below).
Load official CREA HPI Excel (.csv or .xlsx export)
Expected format: CSV with columns Date,Index (where Date is YYYY-MM or YYYY-MM-01 format and Index is the composite HPI value).
To get the official data: visit the CREA HPI Tool page, scroll to "The MLS® HPI data is available to download in Excel", accept terms, download the ZIP, and open the file inside named like MLS_HPI_..._Treb.xlsx.