Query CompStak's commercial lease and sales comp data to benchmark market rents for a subject property
domain: compstak.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Request API access through CompStak's data-api page and scope the engagement (property attribute match, lease comps, or CRE visualizations)
Provide subject property identifiers (address, building attributes) for CompStak's matching process to resolve against its property graph
Query the comps endpoint for lease-level or sales-level transaction data in the target market/submarket
Aggregate returned comps into average rent/concession metrics for the relevant submarket
Re-query periodically since comp coverage grows as new lease filings are crowdsourced and verified
Known gotchas
CompStak API access is enterprise/custom-scoped rather than a self-serve public key — expect a sales conversation before receiving credentials
Property matching can be ambiguous for buildings with multiple addresses, multiple parcels, or vanity addresses, so verify matches rather than assuming CompStak's fuzzy match is always correct
Comp data is crowdsourced and verified over time, so very recent transactions may have thinner coverage than older, more-verified periods
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