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What's it worth now?

Take any purchase — what a client paid, and when — and convert it to today's estimated value using the same price indexes appraisers and economists trust: S&P Case-Shiller, the NWMLS sales-price indexes, and the FHFA House Price Index. The equity conversation, with the receipts.

Data through March 2026 Pricing it right Sale to Sold See live market Market Insights

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Key terms Case-Shiller S&P repeat-sales index (Seattle metro: King, Snohomish & Pierce; ~2-month lag) NWMLS Index Avg & median sold price, 3-month weighted rolling (King County, 2000 = 100) FHFA HPI Federal Housing Finance Agency repeat-sales index (county-level metro, quarterly) The conversion then-price ÷ index at purchase × index today

Your Client's Home

When they bought · what they paid

Purchase date

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Purchase price What they actually paid at the time

These are index math, not an appraisal. The conversion assumes the home moved with its county — it can't see remodels, additions, condition, or a great lot. Use it to open the conversation, then price with comps.

Value by Index

Each index, same math

Share This Read

Print a PDF leave-behind for the listing appointment, send it in a pre-written email, or copy the summary into a text.

✉ Email Client

Include in the printed PDF

Value journey chart Peaks & valleys Equity & net sheet Comp converter Assessed-value check

The Value Journey

From Their Purchase to Today

Estimated value over time, per the county index

Homes ride the county's wave. The line is their purchase price carried forward by the index — through the 2007 peak, the 2012 bottom, the 2022 spike, and today.

Peaks & Valleys

The Equity Conversation

Estimated Equity & Quick Net

Midpoint estimate minus what they owe — and a ballpark walk-away

Remaining loan balance (optional) From their mortgage statement — leave blank for a free-and-clear read

Commission assumption Adjustable — commissions are always negotiable

Full breakdown → Net Proceeds Calculator

Convert a Comp

Old Sale → Today's Dollars

Adjust a dated comparable to the current market for CMA work

Comp sale date

Comp sale price What it closed at, back then

Cross-check · Assessed Value

A Second Opinion, From the County

Pull the home's assessed value and set it next to the index estimate

Type the address. You'll get the county's current assessed value beside the index conversion above — two independent reads on the same home. Around here, homes typically close above assessed value, so treat assessed as a floor, not a target.

Pierce · King · Thurston · Kitsap · Mason — county auto-detected from the address.

The math Estimated value = purchase price ÷ index at the purchase month × index today. Same methodology as the Windermere "Price Conversion" workbook — rebuilt for the web, four counties, always-current.

Sources S&P CoreLogic Case-Shiller Seattle index (covers the Seattle metro — King, Snohomish & Pierce; published ~2 months in arrears). NWMLS King County average & median sold-price indexes (3-month weighted rolling averages, rebased to 100 at Jan 2000, via TrendGraphics). FHFA all-transactions House Price Index, quarterly, metro level — Seattle-Bellevue-Kent (King), Tacoma-Lakewood (Pierce), Bremerton-Silverdale-Port Orchard (Kitsap), Olympia-Lacey-Tumwater (Thurston). Assessed values pull live from each county assessor's public GIS service. Case-Shiller and FHFA values refresh automatically from FRED (Federal Reserve Bank of St. Louis) whenever the page loads; the NWMLS indexes update with the monthly workbook.

What it can't see Upgrades, remodels, additions, condition, lot quality, or anything specific to the home — the indexes track the county, not the property. Very old purchase dates lean on fewer indexes (the NWMLS series start in 1990/1993; FHFA reaches back to the late 1970s). This is a conversation-starter and a sanity check — not an appraisal, a CMA, or a promise of value.