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2024年11月，Maud Caubet建筑事务所完成了位于巴黎第12区的Racine塔楼，该项目由Alderan（SCI EWOK）业主委托。项目涉及对原法国国家森林办公室（ONF）总部的翻新，这座35米高的塔楼建于1970年。新增的扩展部分和新的顶冠代表了这一建筑的惊人转变。总建筑面积：6081平方米。项目总投资：2400万欧元。

In November 2024, Maud Caubet Architectes completed the Racine project in Paris’s 12th arrondissement for Alderan (SCI EWOK), the project owner. The project involved the renovation of the former headquarters of the Oﬃce National des Forêts (ONF), a 35- meter-high tower built in 1970. The extensions and the new crown represent a spectacular transformation. Total surface area: 6,081 m². Project cost: €24 million.

▼项目鸟瞰, Ariel view of the project ©Fabrice Fouillet

▼项目街景, street view of the project ©Fabrice Fouillet

▼项目入口, entrance of the project ©Fabrice Fouillet

一次华丽的蜕变
A Spectacular Metamorphosis

Racine塔楼位于巴黎第12区的心脏地带，靠近新索邦大学校园，所在区域主要为住宅区。项目的目标是将法国国家森林办公室（ONF）曾经的总部——由建筑师Deschler、Thieulin和de Vigan于1970年设计的小型高层野兽派建筑——改造为地方企业技能操作机构（OPCO EP）的新办公空间，这是一家半公共的职业培训机构。

▼改造前建筑, building before renovation ©Maud Caubet Architectes

In the heart of Paris’s 12th arrondissement, near the Sorbonne Nouvelle campus, the Racine project is situated in a predominantly residential area. The program involved transforming the former headquarters of the Oﬃce National des Forêts (ONF)—a small high-rise brutalist building designed in 1970 by architects Deschler, Thieulin, and de Vigan—into new oﬃces for the Local Business Skills Operator (OPCO EP), a semi-public vocational training organization.

▼下沉广场, sunken plaza ©Fabrice Fouillet

该塔楼位于场地中心，见证了一个时代的建筑风格，那时城市发展往往依赖于板式建筑，大多数地面层为人工化的。这种情况下，恢复肥沃土壤成为了项目的基础约束。因此，最初设想的梯级花园被重新诠释为阶梯式平台。扩展部分的流畅曲线从地下室向一楼延伸，遵循自然主义的逻辑。最终，一个175平方米的多产的绿色屋顶使整个场地得以“重生”，即便在项目带来的密度增加的情况下，也能恢复自然生态。

Located at the center of the site, the tower stands as a testament to an era when urban development relied heavily on slab construction, with largely artiﬁcialized ground levels. The reclamation of fertile soil thus became a foundational constraint for the project. In this context, the initially envisioned graduated garden has been reinterpreted as terraced landings. The ﬂowing curves of the extensions rise from the basement to the ﬁrst ﬂoor, following a naturalistic logic. Finally, a 175 m² productive green roof allows for the renaturation of the entire site, despite the densiﬁcation brought about by the project.

▼多产的绿色屋顶, productive green roof ©Fabrice Fouillet

▼多产的绿色屋顶, productive green roof ©Fabrice Fouillet

这一建筑决策使得项目能够将五层地下停车场中的两层改造成充满自然光的高质量生活空间。同时，它还创造了一个12米深的大型环形庭院，重新定义了面向阶梯花园的开放新空间。最后，项目将停车坡道的体量重新利用，创造了一个独特的空间，直接通向新的庭院。

▼俯视平面, overlook plan ©Maud Caubet Architectes

This architectural decision enabled the transformation of two parking levels, out of ﬁve underground levels, to restore high-quality living spaces bathed in natural light. It also allowed for the creation of a large curved patio, 12 meters deep, which redeﬁned the new spaces opening onto the terraced garden. Finally, the project repurposed the volume of the parking ramp to create an unusual space with direct access to the new patio.

▼将五层地下停车场中的两层改造成充满自然光的空间,
restore high-quality living spaces bathed in natural light ©Fabrice Fouillet

这一当代扩建部分环绕建筑而建，并绕过花园中雄伟的树木，呼应了原建筑的曲线，同时解决了保持建筑独特轮廓的问题。建筑的结构被设计成具有较强的适应性，能够轻松变更用途（办公、住宅、活动等），并通过预先优化规模和成本来减少未来改动的难度。重建后的塔楼本身具有灵活性，允许未来进行改造：建筑的重复网格结构和垂直交通要素的战略性布局确保了用途的完全可逆性。

▼内部空间平面, indoor space plan ©Maud Caubet Architectes

The contemporary extension, which wraps around the building and skirts the majestic trees of the garden, echoes the curves of the original architecture and addresses the challenge of preserving the building’s distinctive silhouette. The planned adaptability of the structure to easily change its purpose (oﬃces, housing, activities, etc.) was anticipated through a design that minimizes, in advance, the scale and cost of future modiﬁcations. The restructured tower is inherently ﬂexible, allowing for future transformations: the building’s repetitive grid of slab posts and the strategic placement of vertical circulation elements ensure complete reversibility of uses.

▼屋顶空间, roof space ©Fabrice Fouillet

▼屋顶空间, roof space ©Fabrice Fouillet

实际上，塔楼的全部或部分可以容纳酒店服务、学生宿舍或共享空间，并提供现有的服务和运动设施。双层高的扩建部分和生物气候温室拓宽了用途的范围。通过这种方式，塔楼可以成为一个全面“生活化”的空间，提供同时居住、工作、学习、娱乐、种植景观、恋爱和老去的可能。

▼塔楼剖透视, tower perspective section ©Maud Caubet Architectes

In fact, all or part of the tower can accommodate hotel services, student housing, or coliving spaces, in addition to the service and sports facilities on site. Double-height extensions and a bioclimatic greenhouse enhance the range of uses. This way, the tower can be fully ‘lived in,’ oﬀering the possibility to live, work, study, have fun, grow a garden, love, and age—all at the same time.

▼屋顶空间, roof space ©Fabrice Fouillet

▼俯瞰巴黎的景色, overlook the scene of Paris ©Fabrice Fouillet

原本位于10楼的阁楼被替换为木框架结构，创造了一个温室空间，与建筑结构一体化。这个玻璃顶冠向天空延伸，内设一个教育性的城市农业单元和一个咖啡厅，供所有建筑使用者共同享用。全新的绿树成荫、透明而明亮的空间不仅为居民提供了独特的巴黎视角，还在夜间转变为当地社区的标志性灯塔。

The former attic on the 10th ﬂoor has been replaced with a timber frame, creating space for a greenhouse integrated into the building’s structure. Reaching skyward, this glass crown houses an educational urban agriculture unit and a café, both accessible to all building users. This new tree-lined, transparent, and luminous space oﬀers residents a unique view of Paris and transforms into a distinctive lantern for the local community at night.

▼顶层灯光, lighting on top of the building ©Fabrice Fouillet

▼夜景, night view ©Fabrice Fouillet

▼场地平面, site plan ©Maud Caubet Architectes

▼建筑剖面, building section ©Maud Caubet Architectes

▼地下层剖面, underground section ©Maud Caubet Architectes

▼核心筒剖面, circulation core section ©Maud Caubet Architectes

▼顶层剖面, top level section ©Maud Caubet Architecte

Project Name：Racine
Client：Alderan
Architect (Full Mission)：Maud Caubet Architectes
Project Management Assistance：Etyo
Project Location： France – Paris – 12th District
Program：Offices, The Third Place, Commercial Space, Agricultural Greenhouse, Vegetable Garden
Status：Delivery 2024
Surface Area：6 081 M2
Value Of Works：24 M€.
Project Manager Architect：Arnaud Housset
Project Manager & General Contractor：Nina Maeno
Team：Pauline Reysset, Nastasia Thiriet, Thomas Jacques
Construction Company: Fayat Bâtiment | Environmental And Landscape Design Office: Payet | Agricultural Greenhouse Operator: Topager | Cost Consultant: Scb Economie | Structural Engineering: Structureo | Acoustic Engineering: Clarity | Mep And Hvac Engineering: Atec | Safety Consultant: Csd Faces | Building Inspection: Btp Consultants, Arcora, And Effectis
Materials：Wood Glass Vegetation
Environmental Approach：Hqe Excellent Certification, Effinergie + Biodivercity Labels, Ready To Osmoz

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