For landlords with 1–20 units

The calmest product
in your week — and the
most reliable when
it matters.

Atrium runs your buildings the way a quiet hotel runs its lobby — orderly, photographic, hospitable. And it watches your doors the way an operations room does — direct, evidence-first, no false-alarm theatre.

Start Atrium — 30 days freeSee a sample propertyNo credit card · 3 minutes to set up
Carrera 7 # 45-12 · Bogotá
Edificio Palermo · 3 unidades
Casa Rosales · Chapinero
Buenos días, María. Dos cosas necesitan una decisión.Mar · 12 May
Arriendo vencido — Carmen, Unidad 2C5 días
Contrato por terminar — Iván, Unidad 3B45 días
Visita del plomero — Carrera 7 # 45mañana
1–20 unitsBuilt for the small landlord, not for agencies.
Property & securityOne product, two rooms — never two apps.
Calm by defaultIf you get a notification, it matters.
Private by designYour data stays yours. No ads, no data brokers.
The promise

One product,
two rooms.

Premium and security-forward usually pull in opposite directions. We resolve the tension with architecture, not compromise: Atrium has a lobby and an operations room. Both are calm. Both are well-run. You walk between them without changing apps.
Property mode · The lobby

Your buildings as places, not rows.

Photo-led. Generous. Warm neutrals. Light by default. The home screen answers a worry before it's asked — what needs me today? — and gets out of the way.

Hoy
Cr. 7 · Ed. Palermo · Casa RosalesMar · 12 May
Arriendo vencido · Unidad 2C5 d
Contrato por terminar · 3B45 d
Security mode · The operations room

Direct alerts. Evidence first.

Dark, denser, factual. Cameras you actually trust, AI that doesn't cry wolf, and a feedback loop that learns the difference between a postman and a stranger.

LIVE · persona · 91%02:13:48
Persona detectada en zona Frente — Carrera 7 # 45.
02:13:42infopersona clasificada · 91%
02:13:44warnentró a zona «Frente»
02:13:48critalerta enviada · esperándote
What it actually solves

Four things small landlords actually worry about.

Atrium isn't a 200-feature suite. It's calibrated to the worries that wake people up at 3 a.m. — and the small daily ones that steal their evenings.
No. 1

Rent that doesn't show up.

Auto-bill on the right day, send the receipt automatically, and surface anything overdue before the spreadsheet does.

Receivables · auto-bill · receipts
No. 2

Contracts that roll silently.

Sixty days before a lease ends, Atrium puts the renewal on your home screen with one-tap actions. No more annual surprises.

Contract calendar · CPI re-rate
No. 3

Tenants who don't get a reply.

A tenant reports a leak with a photo in two taps. You see the snapshot, schedule a vendor, and the timeline is auditable.

Tenant portal · incident timeline
No. 4

3 a.m. at an empty unit.

The four things that matter: intrusion, fire, water, package theft. Push the snapshot first. Live in under two seconds. False alarms learn.

Cameras · AI alerts · false-alarm loop
Property mode

The lobby of a well-run building.

Property administration, designed like hospitality. Buildings appear as photographic cards. Lists answer worries before they're asked. The home is what María actually opens at 7 p.m. on a Tuesday.
Today, in one panel

"Needs attention" is the home screen.

Not 12 widgets. One ranked list — severity, then time-sensitivity, then financial impact. Deterministic. Explicable. Nothing magical.

  • Rent overdue · contract ending · plumber tomorrow
  • One tap = "acknowledge", "decide", "remind"
  • Empty list = "Nothing urgent today." With the date.
Pendiente · May 2026
$ 880.000
Carmen Vidal · Unidad 2C · 5 días de mora
CV
Enviar primer recordatorio
tono suave · 18 meses al día
Registrar pago recibido fuera de línea
efectivo · transferencia · tarjeta
3 campos
Contracts that don't ambush you

Renewals on the calendar, not in your gut.

Atrium surfaces every lease decision 60 days before it's due. Renew, end, or send notice — with a templated message and the CPI-suggested re-rate already calculated.

  • One-tap renew · let-it-end · send notice
  • Audit log of every change, with IP & time
  • Tenant receives a real document, not an email
ventana de renovación abre 90 días antes
Carmen Vidal · contrato ATR-CT-00214

108 días hasta la renovación.

Sep 2024hoyAgo 2026
Properties, not rows

Every building has a hero photo.

Spreadsheets reduce buildings to addresses. Atrium treats them as places — a hero image, a courtyard, a doorway. If you haven't uploaded one, we'll show a tasteful architectural illustration. Never a generic stock photo.

  • Photo galleries per building & unit
  • Documents, contracts, inventories, all in one place
  • Localized: Spanish, English, French — more on the way
Carrera 7 # 45-12
4 unidades · todas ocupadas
Edificio Palermo
3 unidades · 2 de 3 arrendadas
Casa Rosales
1 unidad · largo plazo
+ Agregar un edificio
Security mode

The four things
you actually need to know.

Atrium's security side doesn't sell sleep with nightmares. It's the AI a small landlord actually needs: intrusion at an empty unit, fire, water damage, package theft. Push the snapshot first. Get to live in under two seconds. Learn from every false alarm.
01 — Honesty

We don't say "smart."

We describe what a feature does. "Person detected in zone Front, confidence 91%." Not "AI-powered behavioural anomaly detection." If we can't explain it in one sentence, we don't sell it.

02 — Speed

Snapshot first, then live.

The push notification arrives with the evidence already attached. Tap once to acknowledge. Tap twice to watch live — first frame in under two seconds, every time.

03 — Learning

Postman is not a stranger.

Every false alarm trains the model — silently, on your account, never shared. Atrium learns that the cat at 03:08 isn't an intruder. We mean it when we say "thanks, we'll learn from this."

An alert in your hand

"Person detected — Carrera 7 # 45, Front Door. 2 minutes ago."

The notification is exactly that. No "we noticed someone." No exclamation marks. No screaming red. Just the facts, the snapshot, and one button that matters: Watch live.

LIVE · persona · 91%02:13:48
Our voice
We don't sell sleep
with nightmares.

The property-management category is full of feature-rich suites that feel like Salesforce — and security brands that sell anxiety. Both are wrong for the small landlord.

Atrium is the calmest product in your week and the most reliable when it matters. It tells you what to pay attention to today, then gets out of the way. It catches the four or five things you actually worry about — without lying about being a smart security guard.

We name what features do. We avoid "AI-powered," "leverages," "synergy," and every other phrase that doesn't earn its place. If a tenant gets a reminder, it's worded the way a calm person would word it. If something is wrong, we say so plainly.

Calm, not loud. Confident, not boastful. Vigilant, not anxious.

Pricing

Per unit.
No surprises.

One price per unit, paid monthly. Security hardware is optional and paid once. Cancel any month. The first 30 days are free — and yes, the tenant portal is included.
Solo

For one apartment. Everything you need, nothing you don't.

$ 6/ month · 1 unit
  • Tenants, contracts, rent
  • Receipts & documents
  • Tenant portal
  • Incident reporting
  • — Security cameras (add as Connected)
Start free
Portfolio

For 2–20 units. Property administration with optional security.

$ 4/ unit · / month
  • Everything in Solo
  • Multi-building, units, photo galleries
  • Financial reports per unit, building, owner
  • Connected Security · 5 cameras included
  • Audit log · evidence export
Start Atrium
Manager

For small agencies and PMs managing multiple owners.

$ 3/ unit · / month
  • Everything in Portfolio
  • Multi-owner switching · compact mode
  • One-click monthly owner reports
  • Members & roles · access controls
  • Priority support · phone & email
Talk to us
Hardware: Atrium Edge agent — $89 once. Cameras — bring your own (any ONVIF) or buy ours from $69.
MR
"It's the calmest product I use all week.
And the one I trust most when it matters."
María Reyes · 8 apartments, Bogotá · Atrium customer since 2025

Run your buildings.
Watch your doors.

30 days free. No credit card. Cancel any month. You can connect cameras later, or never.

Start AtriumSee a sample property