Reconstructing a Vertical City: Hashima Island contained over 70 numbered structures within its 6.3 hectares, including Japan's first reinforced concrete apartment building. The documentation gathered here represents the research foundation for 3D reconstruction, combining CAD data, archival photographs, and architectural surveys.

Buildings on Hashima served multiple functions in the hyper-compressed urban environment: residential apartments, mining infrastructure, community facilities, religious sites, and commercial spaces. Many buildings were connected by elevated walkways and underwent multiple expansions over the island's operational period (1890-1974).

70+ Numbered Buildings
1916 First RC Apartment
10 Max Stories
5,259 Peak Population (1959)

Landmark Buildings

Historically Significant
Building 30

Glover House

30号棟(グラバーハウス)
1916 (大正5年) RC 7F 140 units

Japan's first reinforced concrete apartment building. Originally 4 stories, expanded to 7 shortly after completion. The L-shaped building has a central atrium and was reconstructed in 1953 by replacing lower-floor steel bars while leaving upper floors intact.

Named for a rumored connection to Thomas Blake Glover. By closure, it served as housing for subcontractors rather than its original use as miners' housing.

Archival Note: [1952] Looking south toward Building 30 from the Nanbu shopping street. Wooden stores lined up selling stationery and goods. The wooden structure at the end was a public bathhouse.
140 Units
3,808 m² Floor Area
1K Typical Unit
Used in Episodes
Walking Tour Life of a Family
Building 65

Hōkoku-ryō (報国寮)

65号棟(報国寮)
1945-1958 RC 9F 317 units

Hashima's largest apartment building. U-shaped structure built in phases: North wing (7F, 1945), expanded to 8-9F (1947), East wing (9F, 1949), rooftop kindergarten (1953), South wing "New 65" (10F, 1958).

The "New 65" south wing was the island's tallest building with private flush toilets, while north/east wings used communal facilities.

Notable: Corridors served as playgrounds for children. Fire and typhoons were the most feared hazards. By 1970, water containers and fire buckets had been replaced by running water.
317 Units
16,895 m² Floor Area
2K Typical Unit
Used in Episodes
Life Inside Building 65 Life of a Family Daily Life
Building 1

Hashima Shrine

1号棟(端島神社)
1936 (昭和11年) Concrete 1F Shinto

The highest point on the island. Unusually constructed of concrete rather than traditional wood. Site of the annual Sanjinsai (Mountain God Festival) held on Sundays around April 3rd.

The sight of islanders running down the "stairway to hell" while carrying the portable shrine (omikoshi) was a unique spectacle of festival culture in an urban environment.

Used in Episodes
Sanjinsai Walking Tour
Building 50

Shōwakan (Cinema)

50号棟(昭和館)
1927 (昭和2年) Steel/Brick 2F Art Deco

Art Deco movie theater with balcony seating. Company-operated with two screenings from 6pm on weekdays. Films premiered here before Nagasaki city, attracting visitors from off-island.

Also hosted theatrical performances and concerts. Declined with television proliferation, shifted to adult films, closed 1970. Used as ping-pong hall in final years. Mostly destroyed by 1991 typhoon.

Archival Note: [1952] The Art Deco facade. The company put great effort into welfare measures. The theater was crowded daily with shift workers who had daytime leisure.

Residential Zone

Housing
Buildings 2, 3

Company Housing (Employees)

2, 3号棟(社員社宅)
Early Period Employee Housing

Housing for Mitsubishi employees (as distinct from miners). Located in the residential zone with better accommodations reflecting the company hierarchy.

Building 5

Mine Manager's Housing

5号棟(鉱長社宅)
Management Supervisory

Dedicated housing for mine management, reflecting the strict hierarchical structure of the mining operation.

Buildings 6, 7

Single Employee Dormitories

6, 7号棟(独身寮)
Dormitory Unmarried Workers

Dormitory accommodation for unmarried company employees, with shared facilities and communal living arrangements.

Building 14

Central Residence

14号棟(中央住宅)
1941 Employee Housing

Completed 1941, this building pioneered the cantilever (projecting balcony) design later adopted in Building 65. Company housing for employees.

Buildings 16-20

Miners and Day Laborers Housing

16-20号棟(鉱員・日給社宅)
Multi-Building Worker Housing

A complex of buildings housing miners and day laborers. Historical photographs show these under construction with workers visible.

Building 13

Hummingbird House (ちどり荘)

13号棟(ちどり荘)
Municipal Teachers/Staff

Municipal housing for teachers and school staff, reflecting the island's investment in education for the children of workers.

Building 39

Community Center

39号棟(公民館)
Community Multi-Use

Community center building that also contained residential units. Kinoshita-san (born 1954) lived here briefly as an infant when his father worked as a projectionist.

Buildings 66, 67

Keimei Hostel / Single Adult Dormitory

66, 67号棟(啓明寮・独身寮)
Training Dormitory

Training facilities and dormitories for new miners. Building 66 (Keimei Hostel) for trainees, Building 67 for single adult workers.

Community Facilities

Public Services
Buildings 68, 69

Hashima Hospital

68, 69号棟(端島病院)
1958 (昭和33年) RC 4F Medical

Building 68 served as the isolation ward, Building 69 as the main hospital building. Part of Takashima Mining Company's Hashima Hospital complex.

Buildings 70, 71

Elementary and Middle School

70, 71号棟(小中学校・体育館)
RC 7F Education

Building 70: The school building (7th floor added with steel frame in 1961). Building 71: School gymnasium. The original wooden school was destroyed by fire during RC reconstruction.

Archival Note: [1952] The previous school was a two-story wooden structure facing south. The fine design featured a front gable and balcony. Windows had shutters for typhoon protection.
Building 8

Public Bath (共同浴場)

8号棟(共同浴場/銭湯)
Community Bathing

One of Hashima's three public bathhouses (sentō). Essential community facilities where miners washed away coal dust after shifts. Children typically bathed every 3 days; adults less frequently.

Building 23

Senbukuji Temple

23号棟(専福寺)
Religious Buddhist

Buddhist temple combined with company housing. Served the spiritual needs of the community alongside the Shinto shrine at the island's peak.

Commercial Zone

Shops & Services
Buildings 59, 60

Commissary

59, 60号棟(購買所)
Commerce Retail

Company store/commissary combined with miners' housing. Essential retail facilities in a community entirely dependent on supplies brought by ship.

Building 48

Pachinko/Mahjong Parlor

48号棟(パチンコ・麻雀)
Entertainment Recreation

Entertainment facilities within a miners' housing building. Shift work meant workers had leisure time at all hours, supporting active entertainment venues.

Building 25

Snack Pub / Ryokan

25号棟(白水園・旅館)
Hospitality Multi-Use

Company housing that also contained hospitality businesses: snack pub Hakusuien and Ryokan Seifusō. Served both residents and occasional visitors.

Building 26

Subcontractor's Kitchen

26号棟(下請飯場)
Formerly Boatman's Hut Wooden

Wooden structure (unusual on the concrete island) that served as housing and kitchen for subcontractor workers. The Kinoshita family lived here briefly in 1959.

Mining Zone

Industrial Infrastructure
Buildings 81-111

Colliery Facilities

81-111号棟(炭坑施設)
Industrial Mining

The surface facilities of the colliery occupied the flat southwestern part of the island—approximately 40% of habitable space. These buildings housed the machinery and infrastructure supporting the undersea mine.

Facility M

No. 2 Pit Winding Room

第2立坑巻揚室
Mining No. 2 Shaft

Winding room for the No. 2 Pit shaft, housing the machinery that raised and lowered the mining cage carrying workers to and from the undersea tunnels.

Used in Episodes
Depths of the Abyss
Facility O

No. 2 Pit Tunnel Entrance

第2坑口
Mining Access Point

Entrance to the No. 2 Pit tunnel system. The mine extended approximately 1 kilometer below the island and several square kilometers under the seabed.

Facility P

No. 2 Pit Sorting Machine

第2立坑選炭機
Processing Coal Sorting

Coal sorting machinery for the No. 2 Pit, where coal was graded and processed before loading onto ships.

Facilities Q, R, S

Loading Infrastructure

積込クレーン・ドルフィン桟橋・積込桟橋
Transport Shipping

Loading cranes (Q), dolphin pier (R), and loading pier (S) facilitated the export of coal and import of supplies—the island's lifeline to the outside world.

Used in Episodes
Walking Tour
Facilities U, V

Conveyor Belt / Coal Pile

コンベアベルト・貯炭場
Processing Storage

Coal conveyor systems and storage piles. The belt conveyor (ベルトコンベアー) moved coal from processing to loading facilities.

Recreation

Leisure Facilities
Facility A

Swimming Pool

プール
Recreation Summer

Swimming pool for residents. Children swam here and in the sea during summer months—one of the few recreation options on the densely built island.

Facility BB

Tennis Court

テニスコート
Recreation Sports

Tennis court—a remarkable amenity given the extreme space constraints of the island.

Facility CC

Baseball Diamond / Playground

野球場・運動場
Recreation School Yard

Multi-purpose sports area serving as both school playground and community recreation space. Site of sumo matches during festivals. Children also played baseball on rooftops.

Evidence of Research Depth: This building documentation represents extensive historical research using Japanese-language sources, architectural surveys, CAD data, and photographic archives. Each building was researched for accurate 3D reconstruction, including construction dates, modifications over time, functions, and connections to daily life narratives. This work demonstrates the scholarly foundation underlying the HashimaXR project before institutional obstruction prevented its completion.