Modern office building exterior at dusk

Cut energy, lift ratings, keep tenants

Tacit gives every stakeholder one evidence-based view of what is happening inside the building.

Rising costs. ESG pressure. Buildings that cannot tell you what is wrong

Energy prices climb, deadlines tighten, tenants ask for evidence. Meanwhile the BMS estate was never designed to talk to itself, let alone to the people running the building.

Tacit unifies BMS feeds, CAFM records, sensors, and manuals into one source of truth, and surfaces every fault with a cost attached.

Portfolio inconsistency

Mixed BMS vintages, no common data layer, no way to compare performance across assets.

Energy cost exposure

Consumption drifts silently above design intent, often for months before anyone notices.

ESG reporting burden

Boards want MEES and CRREM progress. Teams are still pulling data manually from disconnected systems.

Tenant expectations

Comfort complaints are reactive. Occupiers want evidence of performance, not assurances.

Every role, one source of truth

Asset Manager

Turn building performance into portfolio intelligence.

  • Benchmark assets against design intent and peers with evidence
  • Identify underperformers before they affect valuations or ratings
  • Connect operational data directly to ESG, GRESB, and TCFD reporting

Head of Facilities

Know what your plant is doing before it becomes a problem.

  • Catch HVAC faults and scheduling gaps before reactive callouts
  • Eliminate hours decoding alarms and chasing contractors
  • Build a defensible evidence base for planned maintenance

Head of Sustainability

Close the gap between design intent and actual performance.

  • Quantify energy waste with specific findings and cost impact
  • Track progress against MEES, CRREM, and net zero commitments
  • Support EPC uplift and green lease obligations with continuous monitoring

CFO / Finance Director

See exactly where operational spend goes, and where it is wasted.

  • Reduce reactive maintenance costs with faults caught early
  • Extend asset life and defer capital expenditure with evidence
  • Demonstrate measurable ROI to investors and board

What hides inside an office building

Representative findings, surfaced by Tacit agents with a cost attached.

Figures are illustrative, based on typical findings across comparable buildings, not a specific site.

AHU
Floors 4 to 7

Running at full capacity outside core hours, no weekend schedule detected.

£210/day

Controls
BMS configuration

Heating and cooling operating simultaneously, deadband set to 0.5°C across 6 zones.

£31,400/yr

Central plant
Chiller 01

Low delta-T syndrome, pump operating at over-flow, reducing system efficiency by 34%.

£18,200/yr

Energy
Main meter

Base load never drops below 60kW overnight, consumption 38% above design intent.

£290/day

Sensor
Floor 3 open plan

CO₂ sensor offline, zone unmonitored for 11 days, ventilation unchecked.

£75/day

Three capabilities, working as one

Findings

AI agents monitor every asset 24/7 and surface faults with evidence, root cause, and annual cost impact, ranked so your team always knows where to focus first.

  • HVAC fault detection across all floors and zones
  • Controls misconfiguration and BMS scheduling gaps
  • Energy waste quantified in cost per day
Explore Findings

Built-in AI Agents

Four specialist agents covering air handling, central plant, controls integrity, and conservation environment. Running continuously, grounded in your building data and the engineering standards your team already uses.

  • Domain-specific logic per building system
  • Grounded in established engineering practice
  • Active from day one, no configuration required
Explore Agents

Indoor Environment

Real-time thermal comfort, CO₂, and humidity tracking by floor and zone, giving FM teams and sustainability leads a continuous view of tenant comfort conditions.

  • Zone-level temperature and humidity monitoring
  • CO₂ tracking against WELL and BREEAM limits
  • Comfort drift flagged before tenant complaints
Explore Applications

Free whitepaper

Trustworthy AI in buildings: the role of context

Why AI keeps guessing in buildings, and how context turns it into evidence-backed answers operators can trust.

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Transform your buildings with Trustworthy AI