Relying on Third-Party Data for Occupancy Measurement is Risky Business
Nick Rau
20/3/2025

In today’s fast-paced business environment, the demand for effective  occupancy measurement solutions has led to a proliferation of options,  each touting its own benefits and ROI. However, not all approaches are created equal, and it’s crucial for  organizations to carefully evaluate the methodologies behind each of  these solutions, and develop a deep understanding of critical factors  that decision-makers should consider when choosing an occupancy  measurement solution. When exploring measurement options, you might encounter enticing claims like:" Leverage your existing investment in wireless access points and  security cameras. Just place a software layer on top of them and unlock  rich insights into how your physical spaces are used by people. No  physical installation steps involving sensors. Drive massive  efficiencies in your business, easily and friction-free! "Sounds great, right? It’s a seductive claim that looks good on paper, but simply does not  deliver as promised. There are common misconceptions and serious  challenges associated with this approach from customers who have tried  it, unsuccessfully. Unfortunately, factors which we’ll discover below  often result in ‘the easy way’ often abandoned, at great cost and wasted effort. Here are a few issues that have become painfully apparent with non-first-party approaches:

Data Quality

Perhaps the most important issue with this approach is that the occupancy data itself suffers from several limitations:

Repurposed 3rd Party Data - Data provided from cameras and wireless access points are third-party data sets that are not collected by the occupancy measurement company  itself. The data is captured by hardware vendors who designed their  products for purposes other than occupancy measurement (for example, providing WiFi or monitoring cameras for security  purposes) and now provide this capability as an afterthought. The data  sets are subject to technical constraints, bugs, varying  vendor/equipment capabilities, performance issues, and other problems  that often occur within the hardware.

“ The occupancy measurement companies using this approach cannot vouch for  its integrity because the collected data did not originate from their  systems. They must assume the data sets they receive are valid and  accurate, but cannot actually confirm that this is true. “

Gaps in Space Coverage - As we know from our real-world experience, WiFi coverage is not  universal across all spaces, and the dead spots that occur will also  result in dead spots for occupancy measurement. Security cameras,  typically installed around specific areas, provide only line-of-sight  views, also limiting their coverage. 

Infrastructure that was designed and installed for one intent has proven inadequate to fulfill the very different needs of occupancy measurement, resulting in spaces with incomplete or no data at all.

Lower Business Impact & Actionability - Similar to the poor coverage above, infrastructure initially  installed for one purpose lacks the intentional design of components  necessary to collect and report occupancy information in actionable data breakouts useful for achieving desired business results. At best,  secondhand data granularity is achievable at the floor level, and  understanding behavior according to neighborhoods, team spaces, and  other types of assets (conference rooms, cafes, bathrooms, etc.) is  extremely limited.

Privacy & Personal Information Liability

“ Approaches that leverage third-party data sets are also rife with privacy  liabilities. The occupancy measurement provider cannot vouch for the  safe collection of data from this hardware because they are not  collecting it themselves. “


Data coming from WiFi access points can—and often does—contain personally  identifiable information, particularly from logged-in users.  Additionally, security cameras record actual images of individuals that  are sent out to an external party for computer vision analysis, exposing the organization to privacy and compliance concerns, both internally  and publicly.

Significant Integration Friction

Remember that promise of a minimal installation that eliminates first-party  sensors and only requires simple software to utilize your existing WiFi  infrastructure? As attractive as this proposition sounds, let’s take a  more comprehensive look at all that is actually required. This approach  still necessitates deep integration with your corporate IT  infrastructure, often deeper than requirements for first-party sensors.  And, surprisingly to many first-time adopters, almost always requires  the deployment of additional hardware, as well:

• Complex IT Integration - Leveraging data sets from WiFi access points and security cameras  requires deeper integration into the customer’s infrastructure and  networks than dedicated IoT occupancy sensors, which can be simply  placed into an isolated network that is easily locked down and  protected.

Instead, occupancy measurement firms leveraging access points and cameras need  to connect to sensitive and important customer devices that provide  other vital functions to your business (WiFi or security), and this  equipment resides on highly sensitive core networks. The level of  concern and scrutiny from IT leaders is much higher for such  installations and requires extensive coordination and time investment  with their teams.


Gateways & Servers to Deploy - There may not be any sensors to install, but the hardware deployment  needs have shifted, now requiring gateways and servers to relay the  third-party data sets to the occupancy measurement providers’ platforms. This type of hardware is significantly more expensive than IoT sensors  and frequently needs to be racked in properly equipped server space.

Don’t Be Fooled, First-Party Sensor Data is Innately Different

Occuspace offers a new and simple approach that circumvents all of these concerns associated with bolt-on third-party data systems–while maintaining  frictionless deployment. We’ve engineered a small-format,  instantly-deployable sensor that collects and delivers high-quality  first-party, privacy-first data—without the need for any other hardware  or deep IT integrations.The Occuspace platform directly authenticates data integrity in  real-time, from collection all the way to the actionable output within  our data portal, or output via API to any 3rd party platform. Occuspace  sensors passively observe designated space–with no integration with  other local devices required. Importantly, Occuspace never records  personally identifiable information (PII) of any kind.Simple and easy to deploy (even self-installable by our customers),  Occuspace sensors require no custom electrical or infrastructure  work—and no expensive gateways or servers. Simply plug Occuspace into  any standard 120V AC wall receptacle (or power via PoE).

Your comments, thoughts and ideas are welcome.

Occuspace provides an affordable, easy-to-deploy occupancy monitoring system that can accurately measure real-world space utilization patterns while  preserving occupant privacy. To learn more, visit us or set up a free  consultation at https://www.occuspace.com/

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