Fig. 01 / Project 03 of 06 / Point cloud
Local grid / 1 : 400
Ostra Cultural HallGdańsk, 2025
- Area
- 5 200 m²
- Year
- 2025
- Structure
- Steel
- Status
- Complete
Fig. 02 / Drawing set / Plan, section, elevation, axonometric
Fine lines drawn from the model / point cloud on the last tab
Drawn fromthe same model.
Every drawing below comes from the model the building was built and scanned against, with its grid, levels and the dimensions the site team worked to.
Fig. 03 / Scan vs design / As built against as drawn
Grey under 3 mm / blue over 8 mm
The building,against its drawing.
Drag the handle to compare the design with the latest scan. Each point is coloured by how far the built surface sits from the drawn one.
8.4 mm / Truss node T7 above the stage
Fig. 04 / Construction / Survey to handover
All milestones complete
Construction timeline
- Survey / Done
- Foundations / Done
- Structure / Done
- Envelope / Done
- Handover / Done
- Survey
- Foundations
- Structure
- Envelope
- Handover
Jun 2022 to Mar 2025 / 33 months
Fig. 05 / Credits / Team
Everyone who built it
Credits
- Client
- Ostra Cultural Trust
- Structure
- Bałtyk Steel Design
- Services
- Wydma Engineering
- Contractor
- Motława Budownictwo
- Scan imagery
- Norrvik
Fig. 06 / Narrative / What the model found
About 200 words
About the project
- Client
- Ostra Cultural Trust
- Location
- Gdańsk / Poland
- Sensors
- 220
Ostra Cultural Hall is a 1 440-seat concert and events hall in the former shipyard district of Gdańsk, built inside the steel frame of a 1950s assembly shed. The original roof trusses were scanned, checked and kept, and the new auditorium sits within them as a separate timber-lined volume, so the industrial structure stays legible above the audience.
Occupancy sensors went in a full season before the interior was finished, while the hall ran temporary events. They showed nine in ten visitors arriving through the two doors nearest the tram stop, with queues of up to eleven minutes at the second door while the far doors stood almost unused. The entrances were redrawn before fit-out: the second door was widened, the cloakroom moved away from it and a new door opened on the tram side. Measured queues fell by 64 percent in the first full season, and the same 220 sensors now run the ventilation on real occupancy instead of a timetable.
Fig. 07 / Energy / 24 months monitored
kWh per m² per month / dashed line is the target
Energy use,month by month.
- Last 12 months
- 72 kWh/m²
- Monthly target
- 6.3 kWh/m²
- Months at or under target
- 12 / 18
- Embodied carbon
- 341 kgCO2e/m²
| Period | Measured |
|---|---|
| Oct 24 | No data |
| Nov 24 | No data |
| Dec 24 | No data |
| Jan 25 | No data |
| Feb 25 | No data |
| Mar 25 | No data |
| Apr 25 | 6.7 kWh/m² |
| May 25 | 5.5 kWh/m² |
| Jun 25 | 4.7 kWh/m² |
| Jul 25 | 4.3 kWh/m² |
| Aug 25 | 4.4 kWh/m² |
| Sep 25 | 4.9 kWh/m² |
| Oct 25 | 5.9 kWh/m² |
| Nov 25 | 7.3 kWh/m² |
| Dec 25 | 8.5 kWh/m² |
| Jan 26 | 8.7 kWh/m² |
| Feb 26 | 8.3 kWh/m² |
| Mar 26 | 7 kWh/m² |
| Apr 26 | 5.8 kWh/m² |
| May 26 | 4.6 kWh/m² |
| Jun 26 | 3.9 kWh/m² |
| Jul 26 | 3.6 kWh/m² |
| Aug 26 | 3.9 kWh/m² |
| Sep 26 | 4.5 kWh/m² |
Fig. 08 / Materials / Structural mass
Share by weight, as built
| Material | Share |
|---|---|
| Steel | 41% |
| Timber | 22% |
| Concrete | 21% |
| Glass | 9% |
| Other | 7% |
Fig. 09 / Lessons learned / Carried into the next model
03 entries
- L01Lesson learnedInstall occupancy sensors a season before fit-out, while the doors can still move.
- L02Lesson learnedVisitors follow the tram, not the plan. The busiest door was the one nearest the stop.
- L03Lesson learnedVentilation on measured occupancy used 23 percent less energy than the timetable.
