The commercial building software opportunity
Commercial real estate represents $20 trillion in assets globally. The buildings that constitute this portfolio, offices, warehouses, retail spaces, multifamily complexes, are among the largest energy consumers and carbon emitters in the economy, and most are managed with almost no real-time data. The building management systems (BMS) that control HVAC, lighting, and access are typically siloed, proprietary, and 15–20 years old. The opportunity is in the software layer that sits above the BMS: platforms that aggregate building data, optimise operations, and produce the ESG reporting that building owners and tenants increasingly require.
Tenant experience and building operations apps
Office tenants want to reserve conference rooms, report maintenance issues, order food, and access building services from their phone. Building owners want to communicate occupancy policies, track space utilisation, and gather tenant satisfaction data. A tenant experience platform, a white-labeled app for the building, that handles all of these interactions for $0.05–$0.15 per square foot per year is a product that property management companies will deploy across their portfolio. HqO and Equiem are in this space; the mid-market property manager (1–20 buildings) is under-served.
Occupancy analytics for commercial offices
Post-pandemic, every office building owner wants to know how much of their space is actually being used, when, and by whom. Access control systems generate badge swipe data; meeting room booking systems generate reservation data; WiFi systems generate device-count data. A platform that aggregates these sources, produces a daily occupancy heatmap by floor and zone, tracks peak utilisation by day of week, and identifies underutilised space available for subletting or hoteling conversion helps the real estate director justify (or right-size) their office footprint.
Building energy management and ENERGY STAR reporting
Commercial buildings must report energy performance to ENERGY STAR Portfolio Manager for many sustainability certifications and local building performance standards (New York City's Local Law 97, Boston's BERDO). A building energy management platform that pulls from utility meters (via Green Button Connect), tracks performance against the ENERGY STAR benchmark, and generates the Portfolio Manager data submission automatically at $500–$2,000/month per building prevents the laborious manual data entry that building engineers currently perform four times per year.
Predictive maintenance for building systems
HVAC failures in a large office building cost $10,000–$50,000 in emergency repair, lost tenant productivity, and reputation damage. Vibration sensors and temperature monitors on HVAC compressors and cooling towers provide enough signal to predict failures 2–4 weeks in advance. A predictive maintenance SaaS for building systems, that integrates with the building's BMS or directly with field-installed sensors, identifies degradation patterns, and generates maintenance work orders in advance of failure, charges $300–$1,200/month per building.
What to build first
Occupancy analytics. It requires only two data sources (access control + meeting room booking, both of which exist in every commercial building), produces an immediately compelling visualisation (the occupancy heatmap), and the insight ("only 35% of your office is used on any given Tuesday") creates an obvious next conversation about space optimisation. Use the Vibe Coding Time Estimator to scope the access control API integration.
What to do next
Read Energy management startup ideas for the energy optimisation layer that builds on top of occupancy data. Use the LTV Calculator to model per-building vs. per-square-foot pricing for a smart building platform, property owners expand by adding buildings, making per-building pricing the natural choice.
The occupancy analytics opportunity
The most valuable insight a commercial building operator can have is real-time occupancy data: how many people are in the building, on which floors, in which meeting rooms, and at which workstations. This data drives HVAC efficiency (why heat or cool a floor that is 20% occupied?), space planning decisions (which areas are over-used versus under-used?), and cleaning service optimisation (clean spaces that were actually used, not spaces that were scheduled to be used). A smart building platform that aggregates occupancy data from multiple sensor types - WiFi probe requests, badge access, people counters, and CO2 sensors - and provides a unified occupancy intelligence dashboard delivers measurable cost savings within 90 days of deployment.
The tenant experience and satisfaction platform
Commercial landlords are competing for tenants in a market where hybrid work has reduced office space demand. The buildings that maintain high occupancy and command premium rents in 2026 are the ones that offer the best tenant experience: fast and responsive maintenance management, digital meeting room booking, community events and programming, fitness amenities with smart booking, and a mobile app that serves as the digital front door for the building. A tenant experience platform integrated with the building's access control, maintenance systems, and amenity booking creates a cohesive experience that differentiates the property and justifies the rent premium. Landlords pay $0.50-$2.00 per square foot per year for a tenant experience platform that demonstrably improves occupancy rates. Read Real estate investment software startup ideas for the investment management complement to smart building operations.