WELL vs EN 1090
WELL
Certification for occupant health in buildings
EN 1090
EU standard for execution of steel and aluminium structures.
Quick Verdict
WELL certifies buildings for occupant health via performance verification globally, while EN 1090 mandates CE marking for structural steel/aluminium in EU via Factory Production Control. Companies adopt WELL for ESG/wellness differentiation; EN 1090 for legal market access.
WELL
WELL Building Standard v2
Key Features
- Mandatory on-site performance verification testing
- 10 core concepts for human health outcomes
- Preconditions plus point-based optimizations
- Tiered certification: Bronze to Platinum levels
- Continuous monitoring compliance pathways
EN 1090
EN 1090 Execution of steel and aluminium structures
Key Features
- Risk-based Execution Classes EXC1-EXC4
- Factory Production Control FPC certification
- CE marking and Declaration of Performance
- Welding quality management via ISO 3834
- Material traceability and NDT inspection
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
WELL Details
What It Is
The 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. Its evidence-based approach emphasizes measurable outcomes across environmental quality, operations, and policies.
Key Components
- **10 core conceptsAir, Water, Nourishment, Light, Movement, Thermal Comfort, Sound, Materials, Mind, Community (plus Innovation).
- 24 Preconditions (mandatory pass/fail) and 102 Optimizations (point-earning).
- Built on public health research; certification tiers via points (Bronze 40, Silver 50, Gold 60, Platinum 80) with concept minimums.
- Requires third-party documentation review and on-site performance verification.
Why Organizations Use It
- Enhances occupant health, productivity, and ESG reporting.
- Differentiates assets with verified people metrics; boosts rents, retention.
- Mitigates risks like poor IEQ; complements LEED for holistic sustainability.
- Builds stakeholder trust through rigorous, transparent verification.
Implementation Overview
- Phased: gap analysis, scorecard, design/operations integration, verification, recertification (3 years).
- Applies to new/existing buildings, all sizes/industries.
- Cross-functional teams; continuous monitoring optional.
EN 1090 Details
What It Is
EN 1090 is a harmonized European standard family (EN 1090-1, -2, -3) under the Construction Products Regulation (CPR). It governs conformity assessment and technical execution of structural steel and aluminium components/kits for construction works. Primary purpose: ensure safe fabrication, assembly, and market placement via CE marking. Key approach: risk-based scaling through Execution Classes (EXC1-EXC4).
Key Components
- **EN 1090-1Conformity assessment, Factory Production Control (FPC) certification, Declaration of Performance (DoP).
- **EN 1090-2/-3Technical rules for steel/aluminium (materials, welding, tolerances, corrosion protection, NDT).
- Core principles: traceability, welding per ISO 3834, inspection regimes.
- Compliance model: Notified Body certification with ongoing surveillance.
Why Organizations Use It
- Mandatory for EU/EEA market access (CE marking required).
- Mitigates liability, reduces rework via disciplined processes.
- Builds trust, enables high-risk projects (e.g., bridges, stadiums).
- Strategic edge: certified capability for tenders.
Implementation Overview
Phased: gap analysis, FPC build, personnel training (welding coordinator), ITT/ITC, NB audits. Applies to fabricators; 3-12 months typical. Requires certification for EXC-rated production.
Key Differences
| Aspect | WELL | EN 1090 |
|---|---|---|
| Scope | Occupant health, 10 concepts like air, light, mind | Structural steel/aluminium execution, conformity assessment |
| Industry | Buildings global, offices, residential, hospitality | Construction fabrication, EU/EEA steel/aluminium manufacturers |
| Nature | Voluntary performance-based certification | Mandatory harmonized standard for CE marking |
| Testing | On-site performance verification, continuous monitoring | Factory Production Control audits, surveillance by Notified Body |
| Penalties | Loss of certification, no legal penalties | Market exclusion, fines, certificate suspension |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about WELL and EN 1090
WELL FAQ
EN 1090 FAQ
You Might also be Interested in These Articles...

Breaking Down NIST CSF 2.0 Structure: Core, Tiers, Profiles, and Real-World Application
Master NIST CSF 2.0 structure: Govern + 5 Core functions, Tiers (Partial-Adaptive), Profiles for gaps, and real-world apps. Build effective cyber risk strategie

The Tool Landscape for Reaching and Maintaining ISO 27701 Compliance
Discover the top tools for ISO 27701 compliance. Compare functionality, complexity, costs, and benefits to choose the best solution for your privacy program. Ac

The CIS Controls v8.1 Evidence Pack: What Auditors Ask For (and How to Produce Proof Fast)
Fail CIS Controls v8.1 audits due to missing evidence? Get the blueprint: exact artifacts auditors want, repository structure, and automation from security tool
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.
Explore More Comparisons
See how WELL and EN 1090 compare against other standards