WELL certification is the wellbeing-focused counterpart to BREEAM. For commercial fit-out it's increasingly specified as a baseline by institutional landlords. This guide covers what WELL actually requires, cost and programme impact, and typical achievable certification levels.
WELL v2 (current version at Q1 2026) structures requirements across ten concepts:
Air quality, ventilation rates, filtration (MERV 13+), smoking ban, entry mats.
Drinking water quality, legionella control, water quality monitoring.
Healthy food access, portion size, food preparation facilities.
Circadian lighting, daylight access, glare control, visual acuity.
Active furniture, active building access (stairs over lifts), ergonomics.
Temperature set-point accuracy, individual control, humidity range.
Reverberation control, background noise, speech intelligibility.
Low-VOC finishes, transparent material declarations, hazard avoidance.
Biophilic design, restorative spaces, mental health support.
Accessibility, emergency preparedness, new-parent support.
WELL awards four certification levels based on points achieved:
London institutional fit-outs typically target Silver or Gold. Platinum is rare — it requires near-exhaustive feature achievement including performance verification by third-party testing.
Typical cost uplift for WELL Gold on a standard CAT B:
Total uplift: £15–£40 per sqft typical for Gold. Measure against the productivity and recruitment argument — on a 10,000 sqft office over 10 years, the cost works out at £15k–£40k annually.
WELL adds 4–8 weeks to a standard CAT B programme:
Smaller suppliers don't have Declare or Health Product Declaration labels. Substitution late in specification causes cost/time creep.
Air quality, sound or thermal tests fail at PC. Remedial works required before certification.
WELL air and water requirements often depend on landlord systems outside the tenant demise. Partnership with landlord essential.
Some WELL features (like exercise facilities, lactation rooms) only assessable once space is occupied. Extends certification timeline.
WELL-aligned fit-out delivery with partner WELL APs for certification management. See Office Fit-Out, Office Refurbishment, Lighting & Electrical.
For occupiers competing for talent in knowledge-work sectors (tech, professional services, creative), yes. For pure-play commodity office, marginal ROI. Depends on brand and recruiting strategy.
For certification pursuit, yes. WELL v2 submissions require WELL AP credentialed consultant sign-off. For WELL-aligned but uncertified, not required.
WELL Core rates landlord base-build performance; tenant CAT B can add WELL Certification on top. Both possible in sequence.
Measured survey and fixed-price quote within 10 working days.