Planning permission: 3D survey of the existing building for an apartment block in Bern

At the request of a pension fund, we carried out a complete 3D survey of a block of flats in the canton of Bern. This work made it possible to obtain reliable plans, which were necessary for the establishment of social charges, the CECB energy study and the building permit application, although the file was prepared by a local architect.

Le 3D survey is now an essential tool for any building permit application in Switzerland, especially when the existing building has a complex structure or multiple housing units. Thanks to laser scan and photogrammetry of the latest generation, it is possible to obtain a digital model that is accurate to within a millimetre, for immediate use by architects, engineers and authorities. This accuracy means that costly mistakes can be avoided, the planning application process can be speeded up and a solid basis can be provided for all regulatory, energy and structural calculations relating to the project.

Architectural elevation of a residential building showing the levels from the basement to the attic, produced from a 3D survey as part of a building permit.
  • Planning permission - Ultra-precise 3D survey of existing buildings
  • CAD/BIM plans for residential buildings
  • Delivered to the local architect, these plans are used to draw up the social security charges, the CECB study, the survey and the long-term maintenance plan.
  • Virtual tour + georeferenced photo file included.
  • Grouped scan + asbestos removal sampling during the same visit.

1. Background to the project

The building in question comprises several flats. The pension fund needed precise plans to organise the apartments. social costs between co-owners, establish a long-term maintenance planand enable CECB / CECB Plus energy study in accordance with cantonal standards. At the same time, a service provider carried out asbestos removal samples during the same visit, in order to group together the technical interventions.

2. The benefits of 3D surveying for building permits

Our ultra-precise surveys ensure that the architect has an accurate exact existing situation before preparing the permit application:

  • Millimetre-scale point cloud for reliable cross-sections, facades and site plans.
  • Deliverable formats (DWG, IFC, E57, PDF) for immediate use by the architect.
  • Exact basis for COS/CUSThese are the surfaces and volumes required for the survey.
  • BIM model LOG 200/300 ready to join the regulatory project.

This millimetre precision is particularly valuable when it comes to renovations or major transformationswhere every centimetre can influence the technical or regulatory feasibility of a project. Our 3D surveys guarantee compatibility with BIM and CAD software This facilitates communication between all those involved. Whether it's to check gauges, optimise buildable volumes or anticipate energy constraints, our method eliminates approximations and ensures that everything runs smoothly from the design phase through to administrative approval.

In addition to planning permission, the 3D survey is also a valuable resource for anticipating technical interventions. In Berne, we have found that many apartment block projects require comprehensive documentation from the earliest planning stages. Thanks to our BIM models and millimetre-scale point clouds, project owners can quickly identify structural or energy constraints and adjust their project even before submitting it to the authorities. This proactive approach reduces the number of administrative round-trips and means that each stage can be approached with data that is validated, reliable and recognised by everyone involved in the project.

3. Stages in the process

  1. Initial co-ordination - definition of requirements with the client (contingency fund).
  2. On-site 3D scanning - interior, exterior, façade; simultaneously with asbestos removal sampling.
  3. Data processing - formation of the point cloud, generation of deliverables.
  4. Creation of CAD & BIM drawings - and forwarded to the local architect.
  5. Multiple uses - permit application, ten-year maintenance plan, social security contributions, CECB energy study, public enquiry.

Working with local architects

Every planning permission project requires close coordination with the architect in charge of the project. At 3D Scan Bat, we work hand in hand with the architects in charge of the project. Bernese architectural officesto adapt our deliverables to their methods and software. This collaboration ensures that the plans generated fit perfectly into the project, without wasting time or converting files. As a result, architects benefit from an accurate, reliable working base that can be used directly to prepare for the consultation process, reduce uncertainties and speed up the process of obtaining administrative approvals.

4. Use of deliverables

a. Social security contributions & pension fund

Reliable plans to share common charges fairly between tenants using a transparent tool.

b. Energy study / CECB

The point cloud serves as a reliable basis for the CECB/CECB-Plus, which is essential in Vaud, particularly for renovations.

c. Request for planning permission

The architect uses our formats to complete the administrative procedure with the cantonal authorities.

d. Maintenance plan

Graphical support for establishing a 25-year planned maintenancein line with pension fund obligations

An asset for property development

Le 3D survey Not only does it help with the design and permit process, it also enhances the value of the property. In Bern, pension funds and property management companies use our detailed plans and digital models to optimise the presentation of their assets to potential investors or buyers. The precision of the surface areas and volumes provides transparency and credibility, two essential assets in transactions. This technical documentation is therefore both a regulatory and a commercial tool, making it easier to manage and promote property assets over the long term.

5. Compatibility and use of data

Our deliverables are supplied in various standard formats (DWG, IFC, E57, PDF) to adapt to the specific needs of each project player. Architects can integrate our files directly into their BIM models, while engineers and technicians can use them for structural or thermal calculations. The data can also be imported into property management software to track the development of a property. This universal compatibility avoids time-consuming reconversions and ensures that the information collected remains usable for many years.

The versatility of our deliverables makes them a central tool for different professions. Architects use them as a basis for design, engineers use them for structural and thermal calculations, and pension funds use them to monitor loads and maintenance plans. In Bern, as in other cantons, this ability to meet multiple needs with a single 3D survey is a major financial and organisational advantage. By avoiding duplication and tedious conversions, our customers gain in efficiency and peace of mind throughout the life cycle of their buildings.

6. Virtual tour & documentation

La immersive virtual tour offered in parallel with the 3D survey allows full visual recognition of each flat. Each visit is enhanced by a georeferenced photo fileThis makes it easier to carry out inspections, prepare reports for insurance companies and building owners, and coordinate work.

The virtual tours and geo-referenced photo files that we supply are also very useful in the event of disputes or claims. Dated and contextualised images can be used to prove the initial condition of a property and facilitate insurance cover. For asset managers, these documents serve as a reliable reference when planning works or monitoring interventions. This added documentary value goes far beyond the simple building permit, and provides a genuine management tool for long-term maintenance.

7. Advantages of this grouped approach

  • Logistical efficiency: 3D scanning and sampling carried out in a single visit, reducing costs and disruption.
  • Single database: several uses based on the same reference data.
  • Legal and energy reliability: multiple utilities for a single deliverable, validated by architects and CECB experts.

Save time and cut costs

La 3D survey A single database, used for multiple purposes (building permits, CECB, maintenance plan, social charges), significantly reduces the costs associated with technical services. In Berne, our customers are also saving time by centralising data in a single, reliable and reusable database. Fewer return trips to the site, less repetitive work and, above all, less risk of errors due to manual approximations. This logistical and economic efficiency means that 3D scanning is an excellent choice for any apartment block or major renovation project in the canton.

8. Safety and regulatory compliance

In addition to technical precision, our process scrupulously complies with the cantonal and federal standards in force. Each 3D survey is carried out taking into account data protection requirementsThis compliance is a guarantee of peace of mind for our customers. This compliance means peace of mind for our customers, who know that their documents will be accepted unreservedly by the relevant authorities. Our work is covered by professional insurance, guaranteeing total protection in the event of a dispute or challenge.

When you entrust your 3D survey to our team, you benefit from considerable time savings and a precision that guarantees the conformity of your files. Our deliverables are recognised and usable by all those involved in the project, from the architect's office to the cantonal authorities. What's more, our integrated approach makes it possible to reduce delivery costs by combining technical, photographic and regulatory surveys in a single operation. This gives you complete, reliable documentation that can be reused at every stage of your building's life cycle.

With 3D Scan Bat for your 3D surveys in BernYou'll benefit from an experienced partner who understands the technical, regulatory and financial issues involved in your projects. We combine rigour and efficiency to deliver reliable data ready for use by architects, engineers and authorities. We make it a point of honour to adapt our deliverables to the standards most widely used in French-speaking Switzerland, guaranteeing immediate compatibility with your workflows. This approach not only helps you secure your building permit procedures, but also optimises the management of your property assets.

Do you manage an apartment building or pension fund in French-speaking Switzerland, or in the cantons of Bern, Solothurn or Zurich?
Contact us for a free personalised quote. We deliver accurate data for a solid building permit, a relevant CECB study and a long-term maintenance plan.