港區15號樓: 藉光重塑歷史與現代

15號樓作為港區再生計畫中的既有建築再利用案例，設計策略以「保留」與「疊加」為核心原則。新介入的裝修面多以可逆性工法脫離原有結構，避免對既有本體造成破壞。照明設計亦延續此思維，所有燈具皆懸掛於既有杭架系統上，藉由光的配置強調建築肌理的延續與時間感的層疊。

基地位於港邊熱鬧地帶，即使夜間無對外營業，仍透過光環境塑造港邊特有的「櫥窗意象」。整體以「海浪」作為主題線索，讓外部行人透過立面玻璃窺見內部光影的流動。波浪形態的燈帶象徵光的律動，4000K 的冷白海鷗掠過浪面的閃光，映襯於空間之中。背牆則以既有建築的天花結構作為視覺背景，配合 3000K 暖白投光燈，自下而上洗亮天花的陰影，浮現出一種黃昏時分的港邊氛圍，將「建築原貌」與「夕照的詩意」並置於同一視覺層次中。

內部造型的「浪花」並非單純的裝飾語彙，而是結合結構與光的功能性構件。設計沿著既有杭架延伸，並於接待櫃台上方轉化為造型吊燈，使天花、結構與光成為連續的節奏。進入者的動線會隨地坪浪花的波動流向而行，視覺由足下的波紋延伸至天際線的光，形成由地至頂、由內而深的引導感。整體空間因此具備強烈的方向性與時間性的體驗呼應。

設計亦重新定義了光的時段邏輯。白晝中，光以「由內而外」的語彙運作，人工照明與自然光協同作用，使室內成為向外界釋放的光源。而入夜後，光則轉為「由外而內」的展演，港邊的行人可穿透櫥窗窺見室內的光影層次，形成具有觀賞性的夜間景象。室內維持僅供辨識的低照度，讓外部視角主導整體感知，轉換白晝使用者與夜間觀者的角色。

15號樓不僅重現了歷史建築的結構之美，更透過光的敘事將「行入其中」與「觀其之外」並置為同等重要的空間經驗，呈現建築再生的另一種可能性——以光為介，述說時間的重疊與場域的再生。

Building No. 15 serves as a case study in adaptive reuse within the harbor revitalization project. The design strategy centers on preservation and superimposition. New architectural insertions employ reversible construction methods that remain detached from the original structure, ensuring minimal intervention to the existing fabric. The lighting design follows the same philosophy—every fixture is suspended from the existing truss system, using light to articulate the continuity of architectural texture and the layering of time.

Situated along the bustling waterfront, the building maintains a distinct nighttime presence despite being closed after hours, creating a “display window” effect unique to the harbor. The concept of the “wave” anchors the entire design, allowing pedestrians to glimpse the fluid rhythm of light and shadow through the glazed façade. The undulating light bands embody the motion of water, while the cool 4000K tones evoke seagulls gliding over the glimmering surface. The rear wall exposes the original ceiling structure, illuminated by 3000K warm floodlighting from below, evoking the dusk-like glow of the seaside and juxtaposing the authentic texture of the building with the poetic light of sunset.

Inside, the wave motif transcends decoration to become an architectural and luminous element. The design extends along the existing truss framework, transforming into a sculptural pendant above the reception counter. This continuity of ceiling, structure, and light establishes a rhythmic spatial narrative. Visitors are guided by the wave-shaped flooring pattern, their gaze moving from the illuminated ripples underfoot toward the glowing horizon above, creating a visual progression from ground to canopy, from interior depth to beyond.

The project also redefines the temporal logic of light. During the day, illumination operates from inside out, as artificial and natural light collaborate to project interior brightness outward, making the space itself a beacon. At night, the dynamic reverses—light performs from outside in, inviting curiosity through the façade and allowing passersby to observe the luminous layers within. The interior remains at low ambient levels, emphasizing an external viewing perspective and transforming daytime occupants into nighttime observers.

Building No. 15 thus transcends the typical framework of interior illumination. Through the narrative of light, it positions inhabiting within and viewing from without as equally significant experiences, revealing a renewed architectural possibility—where light becomes the medium through which time overlaps and place regenerates.