Industries · Commercial property
Indoor air monitoring for commercial property
Landlords, asset managers and property managers need defensible IAQ data — for tenant complaints, refurbishment programmes, ESG reporting and lease conversations. We deliver baseline surveys and long-term monitoring with structured, written reporting.
Property monitoring
Typical monitoring brief
The portfolio brief usually combines a baseline survey, targeted complaint response and a long-term reporting layer for ESG and tenant engagement.
2–4 wk
Per-floor IAQ snapshot.
1–4 wk
Targeted investigation around report.
3–12 mo
Continuous monitoring with monthly reports.
Pre / Post
Bracketing fit-outs and major works.
Tenant complaint response
Fast targeted monitoring around reported issues — stuffiness, headaches, odours, overheating — separates ventilation, chemistry and comfort drivers.
Baseline portfolio surveys
Comparable IAQ snapshots across assets establish where to invest in ventilation, filtration and BMS tuning across the portfolio.
Refurbishment bracketing
Pre- and post-occupancy monitoring documents VOC, formaldehyde and particulate behaviour around fit-outs and major works.
Reporting that holds up
Method, instrumentation, calibration, reference values and observations — written for asset managers, building managers and tenants alike.
When to commission
When commercial property teams commission monitoring
Tenant complaints, lease and occupancy negotiations, BREEAM In-Use, ESG and net-zero programmes, refurbishment and re-letting cycles, and asset-management baselines.
Often paired with long-term monitoring, IAQ data logging and post-refurbishment air testing.
Benchmarks
Reference values used for property reporting
| Parameter | Reference value | Source |
|---|---|---|
| CO₂ (occupied) | < 1000 ppm, Cat II ≈ 800 ppm above outdoor | BS EN 16798-1 |
| PM2.5 (24-h) | < 15 µg/m³ | WHO 2021 |
| PM10 (24-h) | < 45 µg/m³ | WHO 2021 |
| TVOC | < 500 µg/m³ | WELL v2 Air |
| Operative temperature | 20–24 °C heating / 23–26 °C cooling | CIBSE Guide A |
| Relative humidity | 40–60 % | ASHRAE 55 / WELL v2 |
Scope a portfolio IAQ programme
One asset or a national portfolio — baseline, complaint response, refurbishment bracketing and long-term reporting.
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