The Building Intelligence Standard

This paper introduces the Building Intelligence Standard, a technical build standard in development at Blend, and the six pillars that define it. It is the companion to UX for Spaces™: The Design Standard. UX for Spaces™ defines what each space must do for the people in it. The Building Intelligence Standard defines what the building's technology must be able to do to deliver it. Human Performance as a Building Design Requirement sets out the evidence for why those conditions matter. Numeric values cited here are practice targets drawn from UX for Spaces™ and its references. They are not scientific thresholds.

It is written for owners, operators, developers, architects, interior designers, engineers, and builders across residential, hospitality, enterprise, healthcare, and education projects.

Summary

A home or building can be sold as smart based on the devices installed in it. No standard exists for the experience those devices deliver. A property can rely on voice as its primary control, run a hundred connected bulbs, and have a thermostat that adjusts itself for a utility program, and still be marketed as a smart home. Developers add these packages to raise the value of a property, and the result is a checklist of devices rather than an outcome for the people who live and work there. Integrators are often expected to supply them to stay on the project. It damages the trade's credibility as the people who can guide a good experience.

This paper introduces the Building Intelligence Standard, a technical build standard Blend is developing as the companion to UX for Spaces™, its design standard. The Standard is defined by six pillars: Awareness, Anticipation, Responsiveness, Control, Adaptability, and Calmness. A building meets it when it has all six. Each pillar describes what the building as a whole must do to deliver the experience designed for each space.

1.1 How smart is defined

Published definitions describe three things. A smart device is a product with sensors, onboard processing, and a network connection. A smart home is a residence in which connected devices let the owner monitor and manage lighting, heating, and appliances from a phone or a hub, usually within a consumer ecosystem such as Amazon Alexa, Google Home, or Apple Home. A smart building uses automation, sensors, and networked systems to run its operations, with energy savings, comfort in occupied areas, and early maintenance as the stated benefits.

Each definition describes what the technology can do. Under these definitions, a property qualifies as smart by what is installed in it.

1.2 What the definitions do not specify

Other layers of a building are specified by performance. Thermal comfort is specified against ASHRAE Standard 55. Ventilation is specified against ASHRAE Standards 62.1 and 62.2. Background noise is specified as a noise criterion under ANSI/ASA S12.2. Light at the eye can be specified as melanopic equivalent daylight illuminance under CIE S 026. Each has a metric, a target, and a test.

A smart package has none. It is specified by inventory: device types, quantities, and product names. Nothing in the package states what conditions each space must hold for the people in it, and nothing requires that those conditions be measured once the building is occupied.

1.3 How it is procured

Smart packages reach a property from several directions. Developers and builders add them to raise the value of a home or building. Electricians sometimes include them in their scope with little training or experience in technology. Newer integration companies sometimes install them. Homeowners assemble them device by device. In each case the package appears as a line item and a list of devices. Integrators are often expected to supply that list to stay on the project, even when it will not serve the people who live and work there. When the result frustrates those people, the technology trade loses credibility as the people who can guide a good outcome.

2.1 Connected

A device is connected when it can be reached over a network from outside the space. Turning on lights from a phone while away is connected. Connection adds reach. It does not reduce the effort of using the space.

2.2 Smart

Technology is smart when the same outcome takes less effort. Five switches beside a door, each wired to one load, become one keypad with engraved scenes. One press replaces five, and a single processor sets every load in the space to the level the scene defines. A thermostat, an alarm panel, and a door station become one screen that stays dark until someone approaches.

2.3 Three examples that feel like the opposite of smart

The thermostat. Google's Nest thermostat is a beautifully designed object. Its software can enroll the home in four separate programs that change the temperature, according to Google's own documentation:

• Rush Hour Rewards. Scheduled by the energy company. The thermostat may pre-cool or pre-heat the home, then adjust the setpoint by up to 4°F for three to four hours during a peak event.
• Seasonal Savings. Gradual setpoint adjustments of up to 2°F over three weeks. A user who leaves cannot rejoin until the next season.
• Eco when Away. Switches to energy-saving temperatures when the thermostat decides nobody is home.
• Nest Renew. Automatic adjustments, called Energy Shifts, timed to cleaner or cheaper periods on the grid.

Each program has a purpose, and each is switched off in a different place in the app.

Together, they make one of the most beautifully designed thermostats ever made feel like the opposite of smart.

Voice as the primary control. A voice command depends on the person recalling the exact phrase and device name, on wake-word detection, and typically on the manufacturer's cloud service to interpret the request. It has no tactile or visual presence, so a guest cannot discover it by looking at a wall, and it cannot be operated silently in a sleeping space. It places an always-listening microphone in private spaces. Voice is useful as a secondary layer. As the primary control, it adds effort.

A hundred connected bulbs. Each connected bulb is a separate network client, with its own address, credentials, firmware, and support lifecycle, and each contends for the same wireless airtime. Turning off the wall switch cuts its power and removes it from the network. A hundred of them in one project is a hundred devices to pair, update, and secure, often across several apps. The same lighting designed as a system uses dimmers or load controllers on a dedicated control network, coordinated by one processor, with scenes defined once.

Under the Building Intelligence Standard, a building is intelligent when it has all six pillars. Each pillar describes what the building as a whole must do. If any one is missing, the experience designed for a space cannot be held, however good the equipment is.

3.1 Awareness

A building that pays quiet attention.

Awareness is how the building reads its environment. Air quality (carbon dioxide, fine particulates, volatile organic compounds, and relative humidity), temperature, daylight and illuminance, sound level, occupancy, circuit-level energy, and water flow are tracked as one system on a shared data model, rather than as separate signals in separate apps. Carbon dioxide rises and fresh air increases. A leak triggers shutoff before damage spreads. A circuit drawing current outside its baseline is flagged as equipment wear. The building recognizes who belongs where, and notices when something is out of pattern. In the spaces designed for it, the building is also aware of a fall or a medical emergency (section 4). Installed sensors are validated against reference instruments at commissioning, so the building acts on readings that are true.

3.2 Anticipation

A building that stays one step ahead.

Anticipation is the building acting before it is asked. Morning scenes lift with light, warmth, and fresh air over twenty to thirty minutes before wake time, and wait if nobody stirs. Spaces reach their target conditions ahead of arrival, whether the signal is a phone approaching, an access credential, a calendar, or a hotel check-in. Meeting spaces balance climate and ready their displays before the scheduled start. An approaching storm, read from the weather station, closes windows and exterior shades and adjusts ventilation. Equipment trending toward a service threshold on runtime or current draw is flagged before it fails. Each gesture removes friction and gives time back.

3.3 Responsiveness

Spaces that adapt as life unfolds.

Responsiveness is the building reacting in real time to what awareness and anticipation have set up. Circadian lighting shifts spectrum and intensity through the day against practice targets for light at the eye: 250 lux melanopic EDI or more by day, 10 or less in the evening, and 1 or less on night pathways. Shades follow the sun's position against each façade to control glare and solar heat while keeping the view. Pathway lights guide at night in amber or red spectrum only. Ventilation increases as carbon dioxide passes its threshold. Temperature corrections in sleep, focus, and recovery spaces happen without an audible change in fan speed. The response is precise, designed to support comfort without asking for attention.

3.4 Control

Technology designed to feel simple.

Control is how people direct the building when they choose to. A single button adapts by context, guiding at night and welcoming in the morning. Scene names are engraved in one plain word, consistent across every space, with no more than five scenes on a keypad. Habitual daily actions live on physical keypads that work by feel and in the dark. Keypads are placed where the hand reaches on entry and at the bedside or seat, and blended into the architecture. Every person class, whether owner, guest, staff, vendor, or child, has a defined level of access. Voice is a secondary layer, and every voice command has a physical fallback. Fewer buttons. Calmer interfaces. The best control is the kind people rarely need.

3.5 Adaptability

Design that flexes with time, growth, and change.

Adaptability is what keeps the building current. The building holds distinct behavior for different occupants, modes, and scenarios: a guest profile independent of the household, a school on its academic calendar, a ballroom set for a conference or a wedding. Keypads reprogram as routines shift or staff rotate. Scenes evolve as families grow or properties take on new roles and owners. Structured cabling, spare pathways, and neutral conductors at switch locations let future devices be added without opening walls. Software updates follow a documented plan, are tested, and are applied outside occupied hours with a rollback path. Equipment approaching the end of manufacturer support is flagged with a replacement plan. The building matures alongside the people it serves.

3.6 Calmness

Calm is the measure of Building Intelligence.

Calmness is the building doing everything the other five pillars describe without demanding attention, adding cognitive load, or causing frustration. No building is free of friction. A sensor will misread, a network will drop, a scene will be wrong for the moment. Calmness is measured by the balance: the people in a space must experience a heavy surplus of moments that simply work over the moments that frustrate them. Because some failures are certain, the Standard plans for them rather than assuming they will not occur.

This is why the Standard adopts the principles of calm technology. The discipline was first described by Mark Weiser and John Seely Brown at Xerox PARC in the 1990s, then carried forward by Amber Case, who founded the Calm Tech Institute and wrote the eight principles that define the field. Four of them govern this pillar directly: technology should require the smallest possible amount of attention, it should make use of the periphery, the right amount of technology is the minimum needed to solve the problem, and technology should work even when it fails.

Under the Standard, calm is specified and verified at commissioning:

• Attention. Routine adjustments happen without notification. Alerts are tiered by severity, and each one goes only to the person who needs to act on it. Idle screens are dark.
• Cognitive load. The same scene names and the same behaviors hold in every space. No routine task requires an app, a menu, or a remembered phrase.
• Sensory load. Autonomous lighting transitions fade over ten minutes or more. Motors, fans, and active equipment operate below the noise criterion of the space they serve, including at startup and idle.
• Failure. When the internet is lost, every behavior continues on the local network. When a controller fails, its space defaults to a safe state and its keypads still operate their loads. One failure never cascades into others, and the building reports it once, clearly, to the person responsible.

Some spaces need the building to recognize that a person has fallen or is in medical distress: a parent aging in place, a guest recovering from surgery, a patient, a child. This is the most sensitive form of awareness, because it requires sensing inside the most private spaces. Its scope in the Standard is falls and medical distress only.

Design rule. Each space uses the least identifying sensing method that can meet its requirement. Which spaces need distress awareness, and which methods are acceptable in each, are decided with the owner during discovery. Sensor locations are fixed before rough-in.

Every method follows the same three requirements.

• Acts first, escalates by consequence. Detection is probabilistic, so the building's first response is one that helps if the detection is right and does no harm if it is wrong: lights raise along the route and the designated people are alerted at once. Actions with consequences beyond the space, such as unlocking the entry for responders or calling emergency services, follow a confirmation from those people, or an unanswered check-in within a time the owner sets.
• Processed locally. Detection runs on local processors, so it continues without the internet and images or audio do not leave the building.
• Governed by the owner. The owner sets how long data is kept and who can see it.

Building Intelligence cannot exist without rigorous design. Blend recognized this while developing UX for Spaces™. The six pillars can only be delivered against conditions that were defined for each space before anything was specified, and every one of them depends on decisions that are fixed early in construction: equipment space and pathways at schematic design, wall assemblies at construction documents, sensor and keypad locations and shade pockets at rough-in. A device added after the walls close cannot recover a decision that was never made.

UX for Spaces™ carries a project through that sequence.

• Define the space. The intent of each space and the conditions it must hold are recorded in a Spatial Performance Brief and approved by the owner.
• Resolve the conflicts. Behaviors are written as bound rows, each tied to a space, a user, a moment, and a priority. Conflicts between them are resolved on paper before specification.
• Document for the trades. Each trade receives the rows that belong to it, tagged with the construction stage by which it must act.
• Verify the result. Conditions are measured at commissioning against their targets with calibrated instruments, and monitored after occupancy.

A smart package lists what will be installed. A building designed this way states what each space will do for the people in it, and proves it.

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ANSI/ASA S12.2-2019. Criteria for Evaluating Room Noise.

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Blend Technology (2026). Human Performance as a Building Design Requirement. https://documents.blend.technology/human-performance-building-design