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BIM Architecture Showcase: Hujian Pavilion by Half Pine Garden Studio

The project is located on an old farm in Heli Village, Nanlang Town, Zhongshan City. It sits along a narrow end road about 5.5 meters wide, with its long side oriented north-south, nestled between two lakes. Two rows of pointed-leaf Duying trees, approximately five to six meters tall, stand tall yet shapeless. Looking through these tree trunks, the southern lake unfolds into an open view with distant mountains, while the northern lake, surrounded by dense trees, offers a quieter, more secluded atmosphere.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Current site condition: photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Side facade, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Side facade, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Tea room exterior, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Aerial view of the architecture, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Aerial view of the architecture, photo by Shen Lei

The owner wishes for the building to maximize its footprint, fully utilizing its width. It should include an independent tea room and bathroom, with ample open space for future uses. Although the final function is not fixed, there is potential to add a lounge and storage room if space permits.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Bird’s-eye view of the architecture – North facade, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Bird’s-eye view of the architecture – North facade, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Bird’s-eye view of the architecture – South facade, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Architectural aerial view – South facade, photo by Zhang Bacon

The small building is named “Hujian Xie” for two reasons: firstly, “Hujian” references the building’s directional features; secondly, the homophone “jian” relates directly to the building’s intended location.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Exterior view, photo by Zhang Bacon

The design features a large, south-facing single-slope roof with a bay as wide as possible. To ensure sufficient eaves on the south side, the pointed-leaf Duying trees are incorporated through the roof, creating a colonnade-like effect under the eaves. This “rooftop tree” softens the mass of the large roof and reduces its visual impact on the lake surface.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Front facade, photo by Shen Lei

The tea room is positioned on the north side, overlooking a quieter lake view. A square box is nestled between two trees, breaking the tree row boundary and opening up the view toward the lake. Unlike the framed scenery to the north, the tea room features bay windows and large glass panes without opening windows at its corners, enhancing the lake-facing experience.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Facade, photo by Zhang Bacon

The triangular roof of the tea room serves as a mezzanine platform and links the roof corridors. This design solves the challenge of connecting the eastern staircase to the five-meter-high roof corridors. The rooftop triangular platform also functions as a balcony for the small lounge, offering views of the northern lake.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Interior hall, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Interior hall – closed state, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Interior hall – open state, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Interior view, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Interior view, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Interior glass details, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Tea room interior, photo by Zhang Bacon

The roof corridor railing height aligns with the top of the single-slope roof. A raised tabletop serves as a bar counter surface along the corridor and covers the roof structure joints, sealing the areas most prone to water leakage. Additionally, a skylight is installed on the south side of the rooftop corridor, providing an upward view of the interior space.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Exterior corridor view, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Exterior corridor view, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Outdoor corridor, photo by Zhang Bacon

Surprisingly, after completion, the building received widespread recognition for its “Japanese style.” Recently, I read Mr. Han Baode’s book “Architecture in Context,” which analyzes the “Japanese flavor” in architecture at Donghai University in three key points. First, the tea room exposes all steel frames painted in matte black, resembling dark wood. The walls use 80mm thick integrated insulation boards and are painted white inside without decorative elements, embodying what Mr. Han calls a “simple” approach. Second, to conserve materials, the roof is designed using six-meter square raw materials, creating a large, approximately 30-degree sloped roof. Third, the structure employs 50mm square beams supporting the integrated roof panels, consistent with characteristics of square rafters.

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Roof bar detail, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Roof opening detail, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Roof staircase, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Triangular roof platform, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Roof corridor, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Construction process – internal framework, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Bird’s-eye view of the building during construction, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Bird’s-eye view of the building during construction, photo by Shen Lei

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Bay window frame construction process, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Construction process – external framework, photo by Zhang Bacon

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Construction process – cornice detail, photo by Zhang Bacon

On the other hand, the label “Japanese style” also has some justification.

Technical Drawings

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ General layout plan

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ First floor plan

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Second floor plan

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Roof plan

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Southeast elevation view

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Section 1-1 view

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Section 1-1 side view

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Section 2-2 view

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Section 2-2 side view

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

Explosion diagram of the △ axis side

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Axial side view 1

BIM Architecture | Hujian Pavilion/Half Pine Garden Studio

△ Axial side view 2

Project Information

Project Name: Hujian Pavilion

Project Type: Architecture

Location: Heli, Nanlang Town, Zhongshan City

Design Firm: Half Pine Garden Studio

Lead Architects: Zhang Bacon, Weng Zitian

Owner: Anshan Cultural Tourism Development (Zhongshan) Co., Ltd

Construction Cost: 320,000 yuan

Status: Completed

Design Period: April 2018

Construction Period: December 2019

Land Area: 120 square meters

Building Area: 100 square meters

Construction Team: Deng Fujian

Photographers: Shen Lei, Zhang Bacon

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