WELL
Certification for building occupant health and well-being
ISO 17025
International standard for competence of testing and calibration laboratories.
Quick Verdict
WELL advances building occupant health via verified performance, while ISO 17025 ensures lab testing competence through accreditation. Companies adopt WELL for ESG and tenant appeal; ISO 17025 for regulatory acceptance and market trust.
WELL
WELL Building Standard v2
Key Features
- Mandatory on-site performance verification testing
- 10 core concepts for human health
- Preconditions plus point-based Optimizations
- Certification tiers from Bronze to Platinum
- Continuous monitoring compliance pathways
ISO 17025
ISO/IEC 17025:2017 General requirements for competence
Key Features
- Ensures impartiality and objectivity in laboratory operations
- Mandates personnel competence lifecycle management
- Requires metrological traceability and uncertainty evaluation
- Demands method validation and proficiency testing
- Enables global accreditation and result acceptance
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
WELL Details
What It Is
WELL Building Standard v2 is a performance-based certification framework administered by the International WELL Building Institute (IWBI). It focuses on designing, operating, and verifying buildings to advance human health and well-being through evidence-based strategies across indoor environments and organizational policies. Its people-first approach uses preconditions for minimum requirements and optimizations for points.
Key Components
- **10 core conceptsAir, Water, Nourishment, Light, Movement, Thermal Comfort, Sound, Materials, Mind, Community (plus Innovation).
- 24 Preconditions (mandatory) and 102 Optimizations (point-earning).
- Built on public health research; certification via Bronze (40 pts), Silver (50), Gold (60), Platinum (80) with concept minimums.
- Requires on-site performance verification and documentation review.
Why Organizations Use It
Enhances occupant health, productivity, and ESG reporting; reduces absenteeism and boosts rents/values. Voluntary but differentiates in leasing/HR; manages IEQ risks complementing LEED.
Implementation Overview
Phased: enrollment, scorecard, documentation, third-party review/testing, certification (new/existing buildings). Cross-functional teams; 12-18 months typical; recertify every 3 years with monitoring.
ISO 17025 Details
What It Is
ISO/IEC 17025:2017 is the international standard titled General requirements for the competence of testing and calibration laboratories. It is an accreditation framework specifying requirements for technical competence, impartiality, and consistent operation. Its risk-based approach integrates management and technical controls to ensure valid results.
Key Components
- Eight main elements: general, structural, resource, process, and management system requirements.
- Focus on impartiality/confidentiality (Clause 4), personnel competence, metrological traceability, method validation, uncertainty evaluation, and proficiency testing.
- Built on risk-based thinking; Option A/B for management systems (standalone or ISO 9001-aligned).
- Accreditation model via ILAC-recognized bodies assessing scope-specific competence.
Why Organizations Use It
- Enables global acceptance of results, market access, and regulatory compliance.
- Mitigates risks from invalid data, enhances trust with customers/regulators.
- Provides competitive edge through demonstrated credibility and efficiency.
Implementation Overview
- Phased PDCA: gap analysis, documentation, training, validation, audits.
- Applies to labs of all sizes in testing/calibration; requires witnessed assessments. (178 words)
Key Differences
| Aspect | WELL | ISO 17025 |
|---|---|---|
| Scope | Occupant health, wellbeing in buildings | Laboratory testing/calibration competence |
| Industry | Real estate, offices, hospitality globally | Testing labs across industries worldwide |
| Nature | Voluntary performance certification | Accreditation for technical competence |
| Testing | On-site performance verification required | Witnessed testing, proficiency testing |
| Penalties | Loss of certification, no legal fines | Loss of accreditation, market exclusion |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about WELL and ISO 17025
WELL FAQ
ISO 17025 FAQ
You Might also be Interested in These Articles...

Asset-Backed Issuers and SEC Cybersecurity Rules: Applicability, Disclosures, and Compliance Roadmap
How SEC cybersecurity rules apply to asset-backed issuers (ABS): Form 10-D disclosures, ABS-EE risk management, Inline XBRL tagging, exemptions. Roadmap for tru

Top 10 NIST CSF 2.0 Myths Busted: Separating Hype from Reality for Smarter Adoption
Bust 10 NIST CSF 2.0 myths like 'only for critical infrastructure' or 'Govern replaces Identify'. Plain-English breakdowns, evidence, and fixes for flexible ris

CMMC Cost Calculator: Realistic Budgets for Levels 1-3, C3PAO Fees, and ROI for Small DIB Suppliers
Calculate realistic CMMC costs for Levels 1-3: self-assessments, C3PAO fees, tooling, remediation & ROI. Interactive tool for small DIB suppliers. Get benchmark
Run Maturity Assessments with GRADUM
Transform your compliance journey with our AI-powered assessment platform
Assess your organization's maturity across multiple standards and regulations including ISO 27001, DORA, NIS2, NIST, GDPR, and hundreds more. Get actionable insights and track your progress with collaborative, AI-powered evaluations.
Check out these other Gradum.io Standards Comparison Pages
ISO 14001 vs UL Certification
Compare ISO 14001 vs UL Certification: EMS framework for environmental excellence vs product safety testing & marks. Boost compliance, cut risks—discover which fits your goals now!
PDPA vs NIST 800-171
Discover PDPA vs NIST 800-171: Asia privacy laws (Singapore/Thailand PDPA) vs US CUI cybersecurity. Key diffs in consent, rights & controls. Align global compliance now!
ISO 50001 vs ISO 21001
Discover ISO 50001 vs ISO 21001: Energy mastery meets learner excellence. Compare EnMS & EOMS for peak performance, compliance & gains—read now!