Manual Comp Sheet Builder

Build a quick comparable-sales sheet from listing URLs you find on Zillow, Redfin, Realtor.com, Trulia, Homes.com, or Compass. Paste the URL (we auto-detect the source), fill the four key fields visible on the listing (beds, baths, sqft, price), and we compute median + mean + $/sqft for the comp set. Plug in your subject property and see whether your asking / list price is above or below the implied comp value. Your sheet is encoded in this page's URL — copy the link to save or share.

Why manual entry? Zillow, Redfin, and Realtor.com all explicitly prohibit automated scraping in their terms of service, and their pages are Cloudflare-protected against scrapers. Manual entry of the four key fields takes 5-10 seconds per listing — faster than the alternative. We auto-detect the listing host (Zillow, Redfin, etc.) so you can see at a glance which sources you've sampled.

Subject property (the home you're analyzing)

Comparable sales / active listings (3)

Paste a URL from Zillow / Redfin / Realtor / Trulia / Homes.com etc. and fill in the four key fields visible on the listing. The host is auto-detected.

Comp 1
Comp 2
Comp 3

This is an unweighted comp summary — comp adjustments by an appraiser typically also factor lot size, condition grade, view, garage count, quality level, and time-of-sale market shift. Use this for a quick PPSF sanity check, not a formal valuation. To save / share your sheet, copy this page's URL — your comps and subject property are encoded in the link.

How to use this tool

  1. Find 3-10 comparable listings on Zillow, Redfin, Realtor.com, etc. Aim for similar size, age, and proximity to your subject property. Recently sold ("sold past 90 days") are stronger comps than active listings.
  2. For each comp, paste the listing URL in the Listing URL field. We'll auto-detect the host (Zillow, Redfin, etc.) for the summary table.
  3. Fill in beds, baths, sqft, sold/list price, year built — all four are visible at the top of every listing page. Add any notes about quality, condition, or recent updates.
  4. Enter your subject property at the top. Even with no list price, the implied PPSF estimate from the comps fills in.
  5. Read the summary — median + mean + $/sqft for the comps, with your subject property's implied price. The "Per-comp comparison" table below shows each comp side-by-side with your subject row highlighted.
  6. Save or share by copying this page's URL — the comps and subject property are encoded in the link.

What this tool doesn't do

  • It doesn't pull data from the URL automatically. The four key fields are manual entry.
  • It doesn't apply formal appraiser adjustments for lot size, condition grade, view, garage count, age, or quality. For a regulated valuation use a licensed appraiser.
  • It doesn't time-adjust prior sales for current market — if a comp sold 9 months ago, the price reflects that market, not today's.