PropLab

PropLab is an analytics tool. PropLab underwrites US real estate deals from an address link, returning comps, ARV, rehab signals, a max offer price and a shareable PDF report in about a minute. Free calculators and three free analyses let investors test it before paying.

PropLab is an AI underwriting tool built for real estate investors who need a fast, defensible read on a property before they commit to an offer. The core workflow starts with an address: any MLS, Zillow or Redfin link is accepted, and the platform assembles an analysis covering comparable sales, after repair value, rent and expense assumptions, exit strategies and a maximum allowable offer. The vendor positions the whole run at roughly 60 seconds, against the 6 to 8 hours per deal it cites from ATTOM Data Solutions for manual analysis. Output is packaged as a shareable report rather than a spreadsheet. Each analysis includes a max offer price derived from ARV minus repairs with a profit margin built in, a comp set weighted by distance and recency with adjustment breakdowns and confidence scoring, and repair and condition signals pulled from data and listing cues. Reports export as PDF or a share link in a format the company says lenders and partners can read directly. Separate calculators for ARV, rehab budgeting, the 70 percent rule, fix and flip, BRRRR, wholesale fees and comp finding are available without an account, which makes the paid product easier to evaluate first. The tool fits flippers, wholesalers, rental buyers and acquisition teams working US markets. It does not require MLS access and draws on public records, tax assessments and market data instead. Coverage is nationwide but data density varies, with urban and suburban areas described as the strongest. PropLab claims ARV estimates within 3 to 5 percent of actual sale prices in most markets, a figure based on user reports rather than an independent audit, so it should be treated as a benchmark to check against your own pipeline rather than a guarantee. Against manual underwriting or generic spreadsheets, the appeal is speed and consistency across volume. Against full appraisal or MLS-native valuation tools, it is a screening layer, not a replacement for local judgment on condition and neighborhood nuance. Plans scale from a free tier with three analyses through monthly analysis quotas up to 1,000, with a contract generator and API access reserved for the higher tiers.