About HomeSince
What your home is worth since you bought it
HomeSince started with the question almost every homeowner asks sooner or later: what is my house worth now, given what I paid for it? The popular answers online are automated estimates that don't show their inputs, so there is no way to check them or see why they moved.
So Eric built something better. HomeSince is a collection of free, no-account-required tools that give you an estimate of what your home is worth today if it grew like homes in your area did — and show you exactly how each answer was reached.
Eric builds small, single-purpose reference tools on public data. He is not a real-estate agent or appraiser, and HomeSince doesn't pretend to be one. The federal government publishes a house price index for every state, metro, county and most ZIP codes, but it ships as spreadsheets. He built HomeSince to turn it into an answer.
Part of the Veraino network of free websites.
How it works
Every tool on HomeSince is grounded in a documented, citable method — a published formula, an authoritative standard, or a well-established model. We don't approximate or invent numbers. If we can't cite a primary source for the logic, we don't publish the tool.
For HomeSince specifically, every figure comes from the Federal Housing Finance Agency's House Price Index, a public-domain federal dataset, and every page shows the index values it used. Before a tool ships, its results are checked by hand against FHFA's own published index files.
Our commitments
- Free, no sign-up required. Every tool on this site is free to use with no account, subscription, or paywall.
- We show our work. Every tool explains its methodology, cites its sources, and surfaces assumptions — so you can verify the logic, not just trust the output.
- Honest about limitations. Where precision is limited or assumptions are required, we say so. Tools compute; they don't replace professional judgment.
- Kept current. Tools that use figures that can change over time carry a “last reviewed” date and are treated as an ongoing maintenance responsibility, not a one-time build.
Get in touch
Questions, corrections, or suggestions: hello@homesince.com. Eric reads every message personally.