Direct answer
There is no accurate count based only on square footage. Coverage depends on floor plan, wall and floor construction, ceiling height, radio design, device density, neighboring networks, outdoor spaces, and the performance expected at each location. A large open room may require fewer access points than a smaller masonry-divided home; too many units placed too close can create interference and poor roaming.
Start with predictive placement from plans, then validate signal, noise, channel use, roaming, latency, and throughput onsite. Include patios, garages, gates, doorbells, cameras, and detached structures rather than checking only indoor phones. Final tuning should adjust channels and transmit power instead of leaving every unit at automatic maximum. A professional proposal should define coverage and performance targets, not promise a count from house size alone.
How this answer was prepared
Camelback Smart Homes publishes this FAQ library for homeowners, design professionals, builders and property teams comparing integrated technology. Answers begin with the practical conclusion, then explain the factors that can change it.
Limitations: This is general educational information, not a site-specific design, quote, code determination or compatibility guarantee. Final requirements depend on the property, construction, infrastructure, equipment versions and project goals.