Geometry of sustainability

@@ -30,7 +30,7 @@ The Geometry of Sustainability operates through three named regulatory instrumen

**Swiss Air Exchange Requirements.** The governing document is SIA 382/1, *Lüftungs- und Klimaanlagen — Allgemeine Grundlagen und Anforderungen* ("Ventilation and Air-Conditioning Installations — General Basis and Requirements"), published by the Swiss Society of Engineers and Architects (SIA). It specifies minimum fresh air volume per occupied person per hour, sized to maintain acceptable indoor air quality without excess energy consumption. Incorporating that requirement into the building section — the prototype's vertical dimension — drives mechanical system sizing, slab-to-slab height, and duct zone allocation. Air quality in Woodfine Buildings therefore meets a defined quantitative threshold regardless of occupancy level. Conventional systems optimised for average rather than peak conditions deliver a variable result instead.

**German Circulation Ordinance.** The governing instrument is the German Workplace Ordinance (Arbeitsstättenverordnung, ArbStättV), and specifically its §12 provisions on circulation routes (Verkehrswege). §12 requires that circulation routes be laid out and dimensioned so they can be used easily and safely for their intended purpose, sized to the number of likely users and the nature of the workplace — a standard the interior token set published at `bim.woodfinegroup.com` operationalises as minimum clear widths of 875 mm for single-person passage and 1,200 mm for two-way passage. The Offset Pulled Back Core deployed in Woodfine Buildings is dimensioned to satisfy that constraint: a continuous corridor with direct line of sight to elevator lobbies at every floor. The configuration meets the clearance requirement while preserving the perimeter leasable area that centre-core designs sacrifice.
**German Circulation Ordinance.** The governing instrument is the German Workplace Ordinance (Arbeitsstättenverordnung, ArbStättV), and specifically its §12 provisions on circulation routes (Verkehrswege). §12 requires that circulation routes be laid out and dimensioned so they can be used easily and safely for their intended purpose, sized to the number of likely users and the nature of the workplace — a standard the interior token set published at [bim.woodfinegroup.com](https://bim.woodfinegroup.com) operationalises as minimum clear widths of 875 mm for single-person passage and 1,200 mm for two-way passage. The Offset Pulled Back Core deployed in Woodfine Buildings is dimensioned to satisfy that constraint: a continuous corridor with direct line of sight to elevator lobbies at every floor. The configuration meets the clearance requirement while preserving the perimeter leasable area that centre-core designs sacrifice.

## Where These Standards Are Published

@@ -49,3 +49,14 @@ This approach produces an outcome that is verifiable against the underlying regu
Operating costs are a primary determinant of Office Tenant profitability in Regional Markets. In a Regional Market, where competitive alternatives to Woodfine Buildings are typically conventional older construction, the operating cost differential compounds over a lease term. A tenant occupying a Woodfine Building at a given gross rent may have a lower total occupancy cost than a tenant in a legacy building at a lower headline rent, if the legacy building carries proportionately higher operating cost pass-throughs.

The operating cost reduction applies to the tenant's allocable share of building operating costs — HVAC, lighting, and common area mechanical maintenance — not to base rent. The reduction is a direct consequence of the building geometry meeting the three regulatory standards, which reduces energy consumption, mechanical system wear, and maintenance intervention frequency relative to buildings not designed to those standards.

## The Same Geometry Also Decides How Much Building There Is

The regulatory instruments above are one consequence of a broader discipline: sizing each Woodfine Building from real furniture, circulation, and daylight requirements rather than an area-per-person formula. The same proof that fixes operating cost also fixes construction volume — a building sized to its accommodation, with no allowance added for planning uncertainty, has no area to construct, condition, or maintain beyond what tenants actually occupy. Woodfine treats this as one discipline with two consequences, not two separate initiatives: cheaper to run, and smaller to build in the first place. The construction-volume side of this discipline, together with its companion approach to site landscaping and material selection, is developed at [bim.woodfinegroup.com](https://bim.woodfinegroup.com); this article treats the operating-cost consequence only.

## See also

- [[key-plans-and-tiles|Key Plans and Tiles]] — the furniture- and circulation-derived geometry that this article's regulatory standards are engineered into
- [[dual-mandate-building-certifications|Dual-Mandate Building Certifications]] — how this outcome-first approach relates to third-party ESG certification
- [[four-to-one-parking-ratio|Four-to-One Parking Ratio]] — the landscape side of the same broader sustainability discipline
- [[water-management-system|Water Management System]] — another structural, geometry-fixed sustainability outcome in the Woodfine prototype