Cobu

Cobu, operating its current product as CobuAI, serves the US multifamily rental industry with two linked offerings: a private, moderated resident community application and an "AI visibility" layer for property marketing. The resident product, which can run standalone or be embedded inside an existing resident app, includes property and resident-hosted events with RSVPs and photos, a neighbor-to-neighbor feed with property announcements, interest groups (for example book clubs, dog owners, fitness, parents), a within-building marketplace, and perks such as local discounts, raffles and referral bonuses. Residents join by entering their building's unique code and access the service through iOS and Android apps. The company states that all spaces are moderated 24/7 using a code of conduct, AI toxicity filters and human-in-the-loop review.

The CobuAI layer converts resident activity into a "Lifestyle Page" hosted on the property's own website and structured for machine readability. Stats, events and groups refresh daily, engagement data monthly, local favorites annually, FAQs quarterly and a blog post monthly. The stated aim is for properties to earn owned-domain citations and mentions when renters query ChatGPT, Google AI Overviews, Gemini and similar AI search tools, rather than routing prospective renters through internet listing services. The company positions CobuAI as complementary to internet listing services, AI leasing chatbots, PMS resident apps and AI search measurement tools, and describes itself as PMS-agnostic with no exclusivity, designed to integrate alongside Entrata, Yardi and Jonah, and able to power community features inside apps such as Homebody. AI visibility results are measured via Profound using 88 prompts run daily across ChatGPT and Google AI Overviews, with conversion analysis based on Google Analytics.

Founding story

Co-founder Ben Pleat's motivation came from two observations. Working for institutional apartment owners, he saw that spending on physical amenities such as granite countertops, climbing walls and roof decks did not reduce high tenant turnover, because residents left over a lack of belonging. Separately, his mother, a highly social person, moved to an upscale building in Manhattan's Greenwich Village and became isolated despite the building's many community spaces; she eventually moved to a mid-town building with few common spaces where she did find community. The name Cobu stands for community building.

Business model

Cobu sells to apartment building owners and operators. In an earlier interview the founder described charging building owners a per-unit fee and also generating revenue from national brands, with the pitch that avoiding one or two resident turnovers covers the cost of Cobu for a year. The current positioning adds a leasing-performance rationale: more AI-search citations and higher website conversion at a lower cost per lease.

Per-unit fees charged to building owners, plus revenue from national brands, as described by the co-founder in a 2019 podcast interview.

Traction

The company reports customers in 40 US states plus Canada, 186 cities, 200,000+ apartment homes, and that nine of the ten top NMHC leaders are customers. Reported results include a 4x AI visibility increase and a property mention rank move from #53 to #2 in 3.5 months at Nollie, a Milhaus Residential community; the Cobu page becoming the #1 cited page on both Nollie's and Lavina's property websites; and a 2.3x higher website conversion rate among Lifestyle Page visitors as a portfolio average. In a 2019 interview the co-founder said Cobu was then in 3,000 units.

Latest developments

Current site materials center on CobuAI, an AI visibility and leasing engine, supported by Milhaus and Paradigm case studies, a white paper on AI search in multifamily, and a cited J Turner figure that 46% of renters use AI tools such as ChatGPT and Gemini to find an apartment.