{
  "slug": "buildium",
  "url": "https://apps.sectorgrowth.com/integrations/buildium/",
  "name": "Buildium",
  "vendor": "Buildium",
  "aliases": [
    "Buildium Open API",
    "Buildium property management",
    "ManageBuilding"
  ],
  "website": "https://www.buildium.com/",
  "category": {
    "slug": "property-and-senior-living",
    "name": "Property and senior living",
    "url": "https://apps.sectorgrowth.com/categories/property-and-senior-living/"
  },
  "summary": "Buildium runs the unit, the lease and the tenant for property managers, and publishes an open API with webhooks, a sandbox and a changed-since filter.",
  "answer": "No. Buildium has no app of its own in the HubSpot App Marketplace as of September 2026, only loose matches on the name. Buildium does publish a documented REST API with webhooks, a free sandbox and a changed-since filter on every list endpoint, which makes a keyed custom sync ordinary work rather than a heroic one. The real decision is which of applicants, tenants and owners HubSpot should own.",
  "nativeApp": {
    "status": "none",
    "verifiedAt": "2026-09-22"
  },
  "api": {
    "style": "rest",
    "auth": "api-key",
    "webhooks": "yes",
    "changedSince": "yes",
    "sandbox": "yes",
    "rateLimit": "10 concurrent requests a second, returning a 429 with a suggested retry after roughly 200 milliseconds",
    "docsUrl": "https://developer.buildium.com/api-docs"
  },
  "objects": [
    {
      "source": "Rental property",
      "hubspot": "company",
      "direction": "to_hubspot",
      "key": "Buildium property id in a custom HubSpot property",
      "notes": "The building is the company record, and the owner is a contact on it."
    },
    {
      "source": "Unit",
      "hubspot": "custom",
      "direction": "to_hubspot",
      "key": "Unit id, associated to the property",
      "notes": "A custom object, because vacancy belongs to a unit rather than a building."
    },
    {
      "source": "Rental owner",
      "hubspot": "contact",
      "direction": "two_way",
      "key": "Buildium owner id, with email as a tie breaker",
      "notes": "Owner acquisition is the pipeline most property managers actually want."
    },
    {
      "source": "Applicant",
      "hubspot": "contact",
      "direction": "two_way",
      "key": "Buildium applicant id, with the HubSpot record created first from the form"
    },
    {
      "source": "Tenant",
      "hubspot": "contact",
      "direction": "to_hubspot",
      "key": "Buildium tenant id",
      "notes": "Tenants arrive for renewals and service, not for marketing lists."
    },
    {
      "source": "Lease",
      "hubspot": "deal",
      "direction": "to_hubspot",
      "key": "Lease id, associated to the unit and the tenant"
    }
  ],
  "approaches": [
    {
      "kind": "custom",
      "fit": "recommended",
      "why": "Buildium gives you webhooks, a last-updated filter and a real sandbox, so a keyed service keeps the leasing funnel and the owner pipeline correct without inventing anything. The object model is the work, not the plumbing."
    },
    {
      "kind": "ipaas",
      "fit": "possible",
      "why": "A per-task platform handles a single trigger well, such as a new applicant becoming a contact. It cannot reconcile after a suspended webhook subscription, which Buildium will do after twenty consecutive failures."
    },
    {
      "kind": "native",
      "fit": "avoid",
      "why": "There is no listed app. The marketplace returns only fuzzy matches, so nothing exists to install and configure."
    }
  ],
  "effort": {
    "discoveryHours": [
      10,
      20
    ],
    "buildHours": [
      70,
      150
    ],
    "buildBand": "70 to 150 hours",
    "typicalElapsed": "4 to 8 weeks"
  },
  "pattern": "webhook-queue",
  "faqs": [
    {
      "q": "Is there a Buildium app in the HubSpot App Marketplace?",
      "a": "No. Buildium has no listing of its own in the marketplace, only apps a search turns up as loose matches. Because Buildium publishes a documented REST API with webhooks and a sandbox, a custom sync is a straightforward build rather than the last resort it is with older property platforms."
    },
    {
      "q": "How does an application authenticate against the Buildium API?",
      "a": "With an API key rather than OAuth. A client id and a secret are both sent on every request, in the x-buildium-client-id and x-buildium-client-secret headers, and omitting either returns a 401. Buildium does not enable cross-origin requests and recommends server-to-server calls, so the keys never belong in a browser."
    },
    {
      "q": "Does Buildium have to be enabled before the API works?",
      "a": "Yes, and it is the step that delays most projects. The Open API needs a Premium subscription, and an administrator has to switch it on under application settings before any key can be created. Sorting that out in week one avoids a build that stalls waiting on a billing conversation."
    },
    {
      "q": "How does a Buildium sync find records that changed?",
      "a": "Every list endpoint accepts a lastupdatedfrom filter taking a UTC timestamp, which returns only records updated on or after that moment. That is what makes an incremental pass possible. Results page with limit and offset, defaulting to fifty and capped at a thousand, with the total returned in a response header."
    },
    {
      "q": "What happens when a Buildium webhook endpoint fails?",
      "a": "An endpoint has ten seconds to return a 2xx. Buildium then retries at one minute, ten minutes and one hour, and gives up after the third attempt. Twenty consecutive failures suspend the subscription and send an email to the contact on it, which is why a scheduled reconciliation pass sits behind the stream."
    },
    {
      "q": "Can Buildium webhook events arrive out of order?",
      "a": "Yes, and Buildium says so: it does not guarantee ordering, so creating a lease may deliver the tenant event before the lease event. It also cannot guarantee an event is sent only once. Both facts point the same way: make processing idempotent and fetch whatever is missing from the API rather than assuming sequence."
    },
    {
      "q": "Which HubSpot object should a Buildium lease become?",
      "a": "A deal, associated to the unit and the tenant. A lease has a value, a term and an outcome, which is exactly what a pipeline record is for. Buildium properties become companies and units become a custom object, because vacancy and rent belong to the unit rather than to the building it sits in."
    },
    {
      "q": "Can a Buildium integration be tested without touching live data?",
      "a": "Yes. A Premium subscription includes one sandbox, created from the developer tools screen and seeded with sample data, reached at its own base address. Keys are restricted to the environment they were made in, so promoting to production is a base URL and credential change. Sandbox data cannot be reset, so plan the test sequence."
    }
  ],
  "sections": [
    {
      "depth": 2,
      "text": "Why teams connect Buildium to HubSpot",
      "anchor": "#why-teams-connect-buildium-to-hubspot",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#why-teams-connect-buildium-to-hubspot"
    },
    {
      "depth": 2,
      "text": "What syncs",
      "anchor": "#what-syncs",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#what-syncs"
    },
    {
      "depth": 2,
      "text": "Architecture",
      "anchor": "#architecture",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#architecture"
    },
    {
      "depth": 2,
      "text": "Three ways to connect",
      "anchor": "#three-ways-to-connect",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#three-ways-to-connect"
    },
    {
      "depth": 2,
      "text": "What breaks and how we prevent it",
      "anchor": "#what-breaks-and-how-we-prevent-it",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#what-breaks-and-how-we-prevent-it"
    },
    {
      "depth": 3,
      "text": "One person, several Buildium roles",
      "anchor": "#one-person-several-buildium-roles",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#one-person-several-buildium-roles"
    },
    {
      "depth": 3,
      "text": "Webhooks suspended after twenty failures",
      "anchor": "#webhooks-suspended-after-twenty-failures",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#webhooks-suspended-after-twenty-failures"
    },
    {
      "depth": 3,
      "text": "Ten concurrent requests a second",
      "anchor": "#ten-concurrent-requests-a-second",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#ten-concurrent-requests-a-second"
    },
    {
      "depth": 3,
      "text": "An API that needs switching on",
      "anchor": "#an-api-that-needs-switching-on",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#an-api-that-needs-switching-on"
    },
    {
      "depth": 2,
      "text": "Our approach",
      "anchor": "#our-approach",
      "url": "https://apps.sectorgrowth.com/integrations/buildium/#our-approach"
    }
  ],
  "caseStudies": [],
  "guides": [
    "https://apps.sectorgrowth.com/guides/choose-a-hubspot-integration-approach/"
  ],
  "builtBySectorGrowth": false,
  "status": "published",
  "verifiedAt": "2026-09-22",
  "updatedAt": "2026-09-25",
  "authors": [
    {
      "name": "Prash",
      "role": "Lead of Technical Integrations and AI Solutions"
    }
  ],
  "sources": [
    {
      "title": "Open API, powered by Buildium",
      "url": "https://developer.buildium.com/api-docs"
    },
    {
      "title": "CRM API | Contacts",
      "url": "https://developers.hubspot.com/docs/reference/api/crm/objects/contacts"
    },
    {
      "title": "API usage guidelines and limits",
      "url": "https://developers.hubspot.com/docs/developer-tooling/platform/usage-guidelines"
    }
  ]
}