A Buildium and DoorLoop alternative that’s built for commercial.
Buildium and DoorLoop are great residential tools — but commercial work (CAM/NNN, percentage rent, escalations, multi-tenant suites) ends up in spreadsheets, and neither administers a fund or reports to LPs. Atrium Elite is commercial-native and unifies operations with the capital layer on one data model.
A live commercial rent roll in Atrium Elite — CAM, escalations, and critical dates included.
Commercial leases as the core case
CAM/NNN recoveries with true-ups, percentage rent, escalation schedules, base-year stops, recovery caps, renewal/termination options, and critical dates — built in, not bolted onto residential fields.
The capital layer they don’t have
If you also run a fund or syndication, capital calls, distribution waterfalls, IRR/TVPI/DPI, K-1 packets, and a real LP portal run off the same rent roll — instead of a second, disconnected system.
Books you can trust
An immutable, hash-chained ledger that balances by construction and is reconciled nightly — with maker-checker approvals and a real month-end close. Rent roll, financials, and owner/LP statements agree because they are computed from the same rows.
Where residential-first tools run out of room
Buildium and DoorLoop are well-built for residential and small mixed-use portfolios. But commercial-specific work — CAM/NNN reconciliation, percentage rent, multi-year escalations, multi-tenant suites with recovery pools — isn’t their core, so it spills into Excel. And neither was designed to administer a fund or report to investors, so an operator who manages outside capital ends up running two worlds that never reconcile.
What Atrium Elite does differently
Atrium treats commercial as the core case and puts operations and fund administration on a single model. You get institutional-grade commercial reporting, a real LP portal, double-entry financials with QuickBooks export, and a provably-correct ledger — with published, per-unit pricing you can read without a sales call.
Who it’s for
Commercial and mixed-use operators (roughly 10–200 units) who’ve outgrown a residential-first tool — especially those managing one to three funds or syndications who want operations and investor reporting to finally live on one system.
Frequently asked
How is Atrium different from Buildium or DoorLoop?
Atrium is commercial-native — CAM/NNN, percentage rent, escalations, and multi-tenant leases are core — and it adds fund administration and an LP portal on the same data model. Buildium and DoorLoop are residential-first and do not administer funds.
Does it do CAM/NNN reconciliation?
Yes, natively — true-ups, recovery pools, gross-up, base-year stops, and recovery caps, all tying back to owner statements. It’s one of the workflows operators most often switch for.
Can it handle my fund / LP reporting too?
Yes — capital calls, distribution waterfalls, IRR/TVPI/DPI, K-1 packets, and a real LP portal run off the same rent roll and NOI you already manage.
How do I know the numbers are right?
The ledger is append-only and hash-chained, every report is derived from it so the books balance by construction, and an automated job reconciles every account nightly. High-value entries and bill approvals use maker-checker separation of duties.
What does it cost, and can you migrate my data?
Published per-unit pricing with no minimum on the base plans; the Institutional tier adds a capped per-fund fee. Concierge migration of your rent roll and cap tables is included.
See a commercial-native alternative to Buildium and DoorLoop.
Run Atrium against a full commercial portfolio in the live demo, or put it against your own rent roll.