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In-place rents drift from market quietly.
By the time a renewal lands, the gap has been there for years.
For Asset Managers · CompStak One Connect
See where market rent has drifted from your rent roll.
In-place rent reflects a deal signed years ago. CompStak shows what each space would lease for today, asset by asset, before the renewal conversation starts.
Trusted by the leaders in commercial real estate
What asset managers miss without verified comps.
Rollover risk surfaces too late.
A lease you see 90 days out is a vacancy, not a decision.
Benchmarks built on averages.
Your Class A asset gets benchmarked against buildings from a different tier.
CompStak One Connect answers each of these with verified, analyst-reviewed comps.
Get StartedPortfolio intelligence, asset by asset.
Your whole book, monitored continuously.
Load your assets into Portfolios to track expirations, tenant exposure, and market movement in one view, and see where each asset sits against the market.
Get StartedPortfolio · rollover schedule
Gotham CBD office · 5 assets
In-place$74.20
Market$82.00
Rolling 18 mo312k SF
Vacancy6.4%
BuildingIn-placeMarketExpires
400 Mandel Street$76.10$82.00Q2 2026
250 Comp Plaza$71.40$79.50Q4 2026
1 Stak Tower$78.00$84.00Q1 2027
See what each space would rent for today.
Rent Predictor gives you the Estimated Starting Rent Today for any space in your portfolio, including one with no lease on file, so you can compare it to the in-place rent before renewal.
Get StartedRent Predictor · model input
Portfolio vacant space · no lease on file
Est. starting rent today$82.00
Range$78.00–$86.00
Comps used14
Underwritten$80.00
CompSFStartingNER
Belobrovka Analytics42,000$82.00$75.50
Comp Advisory Group18,400$79.50$73.10
Stak Capital Partners25,000$84.00$77.25
Run the analysis where your team already works.
Query CompStak comps from ChatGPT, Claude, Gemini, or Copilot through the Agent Connect MCP server, and join them against your own records. Statistics and trends are free; pulling the underlying records counts toward your weekly comp limit.
Get Started“Build a rollover report for my Gotham CBD office portfolio: in-place vs market rent and expirations in the next 18 months.”
3 assets roll 312,000 SF in the next 18 months. In-place rent sits $7.80/SF below the Estimated Starting Rent Today.
BuildingSF rollingIn-placeMarket
400 Mandel Street124,000$76.10$82.00
250 Comp Plaza88,400$71.40$79.50
Rent Predictor and Agent Connect are available on CompStak One Connect.
Ask for the asset review in your own words.
Agent Connect puts CompStak inside Claude, ChatGPT, Gemini, and Copilot. Ask the way you’d ask an analyst, and the work comes back with its source comps attached.
“Build a rollover report for my Midtown East buildings: every lease expiring in the next 24 months, its current rent, and the estimated starting rent today for that space.”
Returns
Rollover report
“How does the free rent across my portfolio compare to the submarket average for new leases signed this year?”
Returns
Benchmark + your data
“Draft the quarterly asset review for 600 Brickell Avenue: leasing activity in the building, its comp set, and how Brickell rents moved.”
Returns
Asset review draft
“Pull the recent lease comps at Trammell Crow Center and summarize the concession package, net of free rent and landlord work.”
Returns
Property leases + summary
Every field an asset manager needs in one record.
Access verified lease, sale, loan, and property data across major CRE asset types in 105 markets, with the details to analyze markets, value assets, and underwrite opportunities.
Net Effective Rent
Free Rent
Escalations
Tenant Improvements
+ more
Cap Rate
NOI
Price PSF
Buyer & Seller
+ more
Building Class
Size & Floor
Year Built
Landlord
+ more
Lender
Maturity Date
Origination
Loan-to-Value
+ more
Across the asset types you work with:
Office
Retail
Industrial
Multifamily*
Flex
R&D
Land*Multifamily data powered by RealPage
CRE data straight from the source.
Each comp goes through a multi-step data verification process.
400 Mandel Street, Gotham, NY
Belobrovka Analytics · Office
SizeRentTerm
400 Mandel Street, Gotham, NY
Belobrovka Analytics · Office
SizeRentTermNet effective
Verified memberReviewed on intake
One building resolvedEvery party matched
1400 Mandel Industrial PkwyHeld for review
Deal participantsProperty record
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Community Sourcing
40,000+ verified CRE professionals at brokerage and appraisal firms submit comps daily. Transaction data is received and reviewed multiple times.
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AI & Machine Learning
Machine learning and statistical anomaly detection flag figures outside the expected range for the market and building. CRE Ontology resolves the address to one building and matches every party on the deal to a verified entity. Flagged records are held for review.
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Analyst Verification
Our team of CRE research analysts review and verify data daily. They cross-check each transaction against deal participants and property records. Data is never estimated or blindly added to the system.
See CompStak One Connect in action.
Benchmark rents and build reports without the manual export.
How other CRE teams use CompStak.
Questions about CRE data for asset managers.
How do I tell whether in-place rent is below market?
Compare the contract rent on each lease to net effective rents on comparable leases signed recently in the same submarket and building class. CompStak records both, so the gap is measured rather than estimated.
Can I track lease expirations across a portfolio?
Yes. Portfolios tracks expirations, tenant exposure, and market movement across every asset you load, and measures each one against its own competitive set.
How does CompStak verify its comps?
Every comp is processed by a multi-step data verification system, including machine learning algorithms, statistical anomaly detection, and a team of CRE data analysts. Read more about our data standard.
What does CompStak One Connect add for asset managers?
Rent Predictor, which returns the estimated starting rent for any space in the portfolio including space with no lease on file, and Agent Connect, which builds rollover and asset review work inside Claude, ChatGPT, Gemini, or Copilot.
How much CRE data does CompStak have?
CompStak has collected 4M+ versions of lease and sale comps across 105 US markets, contributed by more than 40,000 verified CRE professionals and reviewed by CompStak’s analyst team.