ENVIRONMENTAL ANALYSIS
Planning to build a Green Building? Here's how PassiHVAC can deliver climate-responsive modelling for high-performance designs and compliant buildings.
Environmental analysis underpins informed, climate-responsive building design. PassiHVAC provides advanced environmental modelling and simulation services to optimise building form, façade performance, external comfort, and internal environmental quality—while generating robust evidence for planning, compliance, and sustainability certification.
Our environmental analysis services are routinely integrated with energy modelling, LCA analysis, EPC strategies, and ventilation design, enabling a coordinated, performance-led approach across all project stages.
Climate Analysis for Building Design
Temperature, Humidity and Wind-Driven Design Intelligence
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We deliver detailed climate analysis using location-specific weather files to evaluate how environmental conditions influence building performance and occupant comfort.
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Typical assessments include:
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External temperature profiles and seasonal variability
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Relative humidity and moisture risk implications
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Prevailing wind patterns and natural ventilation potential
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Overheating risk indicators and adaptive comfort metrics
Climate analysis directly informs passive design strategies, façade specification, glazing ratios, and natural ventilation concepts. Outputs are frequently used to support dynamic energy modelling and overheating assessments during early design stages.
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Related services:
→ Commercial Energy Modelling & Performance Simulation
→ EPC Strategy and Regulatory Compliance
Solar Analysis
Radiation, Sunlight Hours and Glare Control
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Solar analysis is critical for balancing daylight provision, energy demand, and thermal comfort. We assess solar exposure at both the building and façade level to support evidence-based design decisions.
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Our solar studies include:
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Annual and seasonal solar radiation analysis
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Sunlight availability and façade exposure mapping
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Glare risk assessment for occupied spaces
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Testing of shading devices and façade geometry​
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These outputs feed directly into energy performance modelling, daylight strategies, and façade optimisation studies, ensuring compliance with planning and sustainability objectives.
Wind Study and Microclimate Analysis
Pedestrian Comfort and External Amenity Assessment
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We undertake wind studies and microenvironmental simulations to assess how proposed developments interact with local wind conditions.
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Our wind analysis typically covers:
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Pedestrian wind comfort classification
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Identification of wind acceleration and downdraught risk
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Seasonal comfort mapping of external spaces
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Mitigation strategies including massing, screens, and landscaping
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Wind studies are often required for planning approval on medium- and high-rise developments and are complementary to ventilation and airflow modelling at building scale.
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Related services:
→ Passive and Mechanical Ventilation Analysis
→ Indoor Air Quality and Airflow Modelling
Shadow, Visibility and Façade Optimisation
Amenity, Outlook and Environmental Performance
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We provide integrated shadow, visibility, and façade analyses to support planning, design development, and occupant amenity considerations.
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Scope typically includes:
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Shadow and overshadowing analysis
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Visibility and obstruction mapping
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View rose and view angle assessment
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Façade optimisation in response to solar, wind and daylight exposure
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These studies are frequently combined with energy modelling and overheating assessments to ensure that visual amenity and performance objectives are addressed holistically.
Why choose PassiHVAC
Reporting and Deliverables
Clear reports that stand up to scrutiny
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We deliver environmental analysis reports that are practical, well-structured, and easy to use—whether for planning, design coordination, or independent review.
They are commonly used to support planning submissions, design statements, sustainability strategies, and technical audits, giving project teams confidence that assumptions, methods, and results are clearly evidenced.
Ready to discuss your next project?
Every building is different, and so is every client. At PassiHVAC, we place genuine value on long-term professional relationships, not one-off compliance transactions. Many of our clients return to us because we take the time to listen, understand their priorities, and provide advice that supports their wider objectives, not just the immediate regulatory requirement.
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Before any formal appointment, we are happy to have an initial, no-obligation discussion to understand your project, programme and risk profile. We will explain the most appropriate energy assessment route—whether SBEM or Dynamic Simulation—and how this links to Part L approval, EPC outcomes and future MEES considerations. Our aim is to make the process clear, proportionate and aligned with your commercial and technical goals.
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Whether you are a developer, consultant, contractor or asset owner, you can expect a service that is responsive, transparent and technically grounded, with continuity of support as your projects and portfolio evolve.
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Contact PassiHVAC today to start a conversation. We look forward to working with you, supporting your current project, and building a trusted professional relationship.