安大略省中学教师联合会总部大楼丨加拿大

全新的安大略省中学教师联合会（OSSTF）总部，以先进的大规模木构进行打造，不仅完成了组织中央办公空间的迁址与更新，同时也引入新的商业租赁机会。该项目前瞻性的设计语言，既展现了OSSTF的力量、专业与价值观，又传递出天然建材所带来的温暖与真实。

The new headquarters for the Ontario Secondary School Teachers’ Federation (OSSTF) unites the relocation and revitalization of the organization’s central office with new commercial tenancy opportunities, all within a state-of-the-art mass timber structure. The progressive design expresses the strength, professionalism, and values of OSSTF, while embracing the warmth and authenticity of natural building materials.

▼项目概览，project overview ©Tom Arban

这栋由MTA事务所 (Moriyama Teshima Architects) 设计的三层建筑，面积达12.4万平方英尺，整体呼应自然要素，强调健康、福祉与可持续性。项目利用充足自然采光、通过灵活的空间使用方式以及先进系统实现高品质环境。Kasian事务所与MTA事务所紧密合作，将室内设计无缝融入整体建筑愿景，聚焦于人的体验。

Designed by Moriyama Teshima Architects (MTA), the three-storey, 124,000-square-foot building echoes a connection to the natural elements, prioritizing health, wellness, and sustainability through abundant natural light, flexibility of use, and state-of-the-art systems. Kasian’s close collaboration with MTA ensured the interior design was seamlessly integrated into the architectural vision, with a strong focus on the human experience.

▼充足的自然采光，abundant natural light ©Tom Arban

Kasian事务所负责的新总部室内设计部分的面积达4万平方英尺，其设计充分支持OSSTF面向未来的目标：一个可持续、关注健康并具有社会敏感度的办公环境，将功能与永恒且精致的美学相结合。新办公室位于建筑北侧，跨越四层楼，可远眺多伦多Don山谷的西向景观。中央通高的中庭加强了动线的便捷性，北侧与南侧分别布置商业办公区，南侧一层为多功能活动空间，二、三层则为租户办公区域。

The new 40,000-square-foot workplace interior’s design by Kasian supports OSSTF’s forward-looking goals through a sustainable, health-conscious, and socially attuned environment, blending functionality with a timeless and sophisticated aesthetic. Located on the north side of the building, OSSTF’s new offices span four floors and offer stunning westward views of Toronto’s Don Valley. A central full-height atrium provides ease of circulation and is flanked on the north and south by commercial office space. The south side houses a multi-purpose event space on the ground floor and a tenant space on floors two and three.

▼中央通高的中庭，the central full-height atrium ©Tom Arban

设计让交叉层压木（CLT）与胶合木（GLT）结构成为空间的核心特征，并辅以简洁的单色调，凸显木构的自然美感。OSSTF的品牌特征也通过适度的点缀色彩与定制木作得以融入。

The design approach allowed the cross-laminated timber (CLT) and glue-laminated timber (GLT) structure to become the defining element of the space, complemented by a clean, monochromatic palette that highlights the natural beauty of the exposed wood. References to the OSSTF brand identity are thoughtfully integrated through modest accent colours and custom millwork.

▼以木构为核心的空间，wood-centered spaces ©Tom Arban

材料与饰面的选择均与木构和谐呼应，同时呼应建筑物周边的峡谷景观。柔和的色调增强温暖感，细腻质感的中性色地毯增加空间深度却不造成视觉干扰。室内白色墙面则搭配浅灰色声学板，呈现出简约而持久的气质。声学天花板采用胡桃木饰条结合吸音材料，旨在有效降低噪音。

Finishes were selected to harmonize with the timber structure and evoke the surrounding ravine landscape. Subdued tones enhance warmth, while neutral carpet tiles with subtle texture add depth without visual distraction. Interior walls are finished in plain white and are complemented by acoustic panels of soft grey, adding to the timelessness of the space. Acoustic ceiling systems feature walnut slats with integrated absorptive material to reduce noise.

▼无隔断空间，no-partitioned space ©Salina Kassam

▼会议室，meeting room ©Tom Arban

▼会议室细节，meeting room details ©Tom Arban

▼办公空间，office spaces ©Tom Arban

▼多功能活动空间，a multi-purpose event space ©Tom Arban

设计特别关注到访与共享空间。OSSTF的前厅以一张天然石材质感的定制接待台为视觉核心，传递强烈而友好的第一印象。整体设计明亮通透，最大限度引入自然光。办公室围绕外围工位布局，并与高管办公室相邻，确保组织内部的透明与可见性。会议室配置多样化家具与灯光，为工作提供丰富场景，兼顾功能与美学。每一层都设有茶水间，采用OSSTF品牌色彩，既支持直观导视，又强化身份认同。

Special attention was given to shared and arrival spaces, with the reception area, anchored by a bespoke-designed desk in a natural stone-like finish, offering a strong and welcoming first impression. The bright and open design prioritizes daylight access for all occupants. Offices are centrally located around an outer band of workstations in proximity to executive offices, offering transparency and visibility across the organization. Meeting rooms are outfitted with a variety of furniture types and lighting to offer diverse work settings with a balance of functionality and aesthetic appeal. Each floor includes a kitchenette or servery with distinctive OSSTF brand colours that support intuitive wayfinding and reinforce identity.

▼前厅，the reception area ©Tom Arban

▼定制接待台，the bespoke-designed desk ©Tom Arban

▼茶水间，kitchenette ©Tom Arban

建筑的灵活与无障碍基础设施则隐藏于优雅的饰面之下，木质天花得以完全展现。架空地板系统容纳所有设备线路，避免天花上布满管线，并支持可持续的置换式送风与灵活的工位布局。简洁的线性空间布局与最少的隔断，确保空间具备长远的适应性。

The building’s flexible, accessible infrastructure is concealed beneath elegant finishes, leaving the wooden ceiling exposed. The raised floor system allows all services to run beneath the floor, eliminating overhead ducts and conduits. This opens up the ceiling to highlight the exposed mass timber structure and supports long-term sustainability through displacement air and adaptable workspaces. A linear layout with minimal partitioning further supports adaptability, ensuring the space can evolve over time.

▼木质天花，wooden ceiling ©Salina Kassam

这座总部不仅是一处办公场所，更是支持OSSTF社会、环境与专业使命的前瞻性、可持续性工作场所。

More than just a headquarters, the progressive, future-ready workplace supports OSSTF’s social, environmental, and professional mission.

▼木作细节，wooden details ©Salina Kassam

Kasian Team:

Scott Norwood (Principal in Charge)

Vanessa Tantalo (Design Lead)

Brett Patychuk (Designer)

Sarah Czerwinskyj (Designer)

MTA Team:

Carol Phillips (Partner in Charge)

Phil Silverstein (Project Manager and Job Captain)

Cathy McMahon (Architect)

Corey Brown (Architect)

Deya Iskandarova (Architect)

Kayley Mullings (Senior Interior Designer)

Gord Doherty (Construction Administration)

Miranda DelPlavignano (Interior Designer)

Emmanuel Awuah (Architectural Technologist)

Jay Zhao (Architect)

Chiara Camposilvan (Architect)

Sean Robbins (BIM Manager)