3D survey of historic buildings in French-speaking Switzerland: Preserving our heritage with 3D scanning
The 3D survey of historic buildings is an essential tool for heritage conservation in French-speaking Switzerland. Thanks to 3D heritage scanning (lasergrammetry, photogrammetry, etc.), it is possible to digitise old buildings such as castles, churches, traditional houses and mills with great precision, in order to create a faithful digital copy.
These 3D models The benefits of these detailed surveys are many: permanent documentation of the architecture, a solid basis for planning the restoration of the building, and enhancement of the local cultural heritage. Professionals working in architecture, renovation or heritage conservation in French-speaking Switzerland are increasingly relying on these 3D surveys to carry out their historic preservation projects.
3D model generated after laser scanning a heritage building, used for documentation and restoration.
⏱️Résumé in 20 seconds
3D scanning enables architects to obtain an accurate and complete survey of the building in just a few hours. The data captured generates reliable plans and a BIM database that can be used immediately, reducing errors, returns to site and design time. It's a direct lever for precision, collaboration and efficiency for any architectural project.
The importance of 3D surveys for historic buildings
La 3D digitisation of historic buildings plays an important role in safeguarding and enhancing our heritage. Here are some of the major advantages of 3D scanning for old buildings:
- Millimetre precision and complete detail : The 3D survey captures the entire building with unrivalled accuracy. Every architectural detail (vaults, ornamentation, complex structures) is recorded in the point cloud from the scan. For example, a high-density laser scanner such as the Leica RTC360 can capture every detail, even in complex or difficult-to-access environments. This millimetre-level precision is essential for understanding the true state of ancient structures that are often irregular.
- Documentation and long-term archiving: The digital model generated constitutes a digital archive of the historic building. Unlike 2D plans or incomplete manual surveys, the 3D model retains all the geometry of the building. This means that a faithful record can be kept of what exists, even if the building undergoes changes or deterioration over time. Asset managers can also use this data to monitor the evolution of the building and plan future maintenance.
- Faithful restoration aid : In the event of renovation or restoration, the 3D survey provides a reliable basis on which to work. Detailed 3D surveys serve as a basis for precise planning and meticulous execution of the work. Architects can virtually explore the building, pinpointing fragile or damaged areas, and prepare a restoration that respects the original architecture. In the canton of Bern, for example, preservation projects have used 3D surveys to document historic buildings and plan their restoration in keeping with the original construction.
- Reducing costs and risks : By providing exhaustive data from the outset, 3D scanning avoids unpleasant surprises during construction. Costly mistakes are minimised, because all the dimensions and constraints of the building are known upfront. What's more, on-site work is reduced (fewer trips to take additional measurements), which is less intrusive for fragile monuments. 3D surveys have also proved their worth in avoiding errors and delays in a number of renovation in Switzerland.
- Promoting and sharing our heritage : The data generated by a 3D survey can be reused to enhance the public's understanding of our heritage. For example, a colourised point cloud can be used to create an interactive virtual tour of a cathedral or castle. This type of initiative can be used to show historic sites from a distance, or to prepare a museum exhibition. What's more, this data facilitates communication between the various players (architects, engineers, heritage authorities) by providing them with a common, visual basis for the project.
In short, using 3D survey of historic buildings ensures both a better understanding of what already exists and optimum preservation of our built heritage. It's a wise investment for any restoration, energy renovation or enhancement of an old site.
Cutting-edge 3D scanning technologies for heritage conservation
Carrying out an accurate 3D survey of an old building requires specialised tools and know-how. Our local company 3D Scan Bat, based in French-speaking Switzerland, uses cutting-edge technology to carry out these digitisations efficiently. The typical process involves several stages and tools:
- Terrestrial lasergrammetry : A 3D laser scanner is deployed on site to scan the entire structure. This device sends out laser beams and measures millions of points on the building's surfaces, producing a point cloud very dense three-dimensional image. Modern scanners are capable of covering every angle of a building in a very short space of time, while capturing even the smallest rough edges. Several scan stations are often necessary (up to hundreds of positions for a large monument) to ensure that no nook or cranny is overlooked.
- Photogrammetry by drone : In addition to terrestrial laser scanning, aerial photogrammetry by drone can be used to capture roofs, spires and other hard-to-reach areas at height. For example, during the survey of a historic winegrower's house in Lavaux, more than 300 ground scan positions were supplemented by a point cloud of the roof obtained via a drone. This combination guarantees complete modelling of the building, from basement to roof.
- Treatment and BIM modelling : Once the raw data has been collected (3D point cloud), it is processed by specialised software (CAD software such as Revit, Archicad or others). The aim is to transform the point cloud into a usable digital model, often in the form of a BIM model. This 3D model incorporates not only the geometry of the building, but can also include information on materials, the condition of structures and technical data. At 3D Scan Bat, we provide our customers with detailed 3D BIM models, They can be perfectly integrated into the work processes of architects and engineers.
- Virtual tours and digital twins : In addition to plans and models, digitisation allows us to create a digital twin of the historic building. This is a virtual 3D copy that can be explored as if you were actually there. This often takes the form of 360° virtual tours or interactive web models. This digital twin is an asset for documenting the building over time: it can be associated with photos, annotations, restoration phases and even simulations.
We do is one of the pioneers in French-speaking Switzerland in the adoption of these technologies for heritage. Based in Martigny and Nyon, our team covers the whole of French-speaking Switzerland, as well as projects in German-speaking Switzerland. Our 3D scanning services include the capture of façades, buildings, complex buildings and historical heritage using the latest generation equipment. Each assignment is tailor-made, taking into account technical constraints (site accessibility, regulations, etc.) so as to deliver reliable, usable data quickly.
Cutting-edge 3D scanning technologies for heritage conservation
Making a precise 3D survey of an old building requires specialised tools and know-how. Our local company 3D Scan Bat, based in French-speaking Switzerland, uses cutting-edge technology to carry out these digitisations efficiently. The typical process involves several stages and tools:
- Terrestrial lasergrammetry : A 3D laser scanner is deployed on site to scan the entire structure. This device sends out laser beams and measures millions of points on the building's surfaces, producing a point cloud very dense three-dimensional image. Modern scanners are capable of covering every angle of a building in a very short space of time, while capturing even the smallest rough edges. Several scan stations are often necessary (up to hundreds of positions for a large monument) to ensure that no nook or cranny is overlooked.
- Photogrammetry by drone : In addition to terrestrial laser scanning, aerial photogrammetry by drone can be used to capture roofs, spires and other hard-to-reach areas at height. For example, during the survey of a historic winegrower's house in Lavaux, more than 300 ground scan positions were supplemented by a point cloud of the roof obtained via a drone. This combination guarantees complete modelling of the building, from basement to roof.
- BIM processing and modelling : Once the raw data has been collected (3D point cloud), it is processed by specialised software (CAD software such as Revit, Archicad or others). The aim is to transform the point cloud into a usable digital model, often in the form of a BIM model. This 3D model incorporates not only the geometry of the building, but can also include information on materials, the condition of structures and technical data. At 3D Scan Bat, we provide our customers with detailed 3D BIM models, They can be perfectly integrated into the work processes of architects and engineers.
- Virtual tours and digital twins : In addition to plans and models, digitisation allows us to create a digital twin of the historic building. This is a virtual 3D copy that can be explored as if you were actually there. This often takes the form of 360° virtual tours or interactive web models. This digital twin is an asset for documenting the building over time: it can be associated with photos, annotations, restoration phases and even simulations.
We do is one of the pioneers in French-speaking Switzerland in the adoption of these technologies for heritage. Based in Martigny and Nyon, our team covers the whole of French-speaking Switzerland, as well as projects in German-speaking Switzerland. Our 3D scanning services include the capture of façades, buildings, complex buildings and historical heritage using the latest generation equipment. Each assignment is tailor-made, taking into account technical constraints (site accessibility, regulations, etc.) so as to deliver reliable, usable data quickly.
Call on 3D Scan Bat for your heritage projects
Whether you're an architect, heritage engineer, local authority official or the owner of a listed building, a 3D survey will help you manage your restoration or conservation project with peace of mind and precision. By choosing 3D Scan Bat, With our company, which specialises in 3D scanning of buildings in Switzerland, you benefit from professional, local support. Our team has the field experience and expertise in digital tools to meet the specific challenges of each old building.
We operate in Geneva, Vaud, Valais, Neuchâtel, Fribourg, Jura and beyond, with the same high standards of quality. Our 3D surveys of historic buildings provide an essential basis for careful renovations, while scrupulously respecting local heritage and regulatory constraints. Thanks to our advanced technologies, we can quickly deliver plans, models and virtual tours tailored to your specific needs.
Contact us for your 3D historic building survey
Do you have a 3D scanning or restoration project for an old building in French-speaking Switzerland? Contact 3D Scan Bat now for personalised advice and a free quote. We'll be delighted to put our expertise to work for you. Visit our contact page or call us on +41 58 255 00 32 and our team will answer all your questions.
Together, safeguarding our historical heritage thanks to 3D technology!
