Sector 11 / 18

HBIM for cultural heritage

BIM modelling from survey data and HBIM, to understand, restore and manage the historic building.

At a glance

B1P Group supports the client in BIM modelling from survey data of historic and listed buildings, with the HBIM method: from the laser scanning and photogrammetry point cloud to the Revit model, with families built on the actual elements (vaults, cornices, decorative features, historic structures), catalogue records and decay mapping linked to the objects. The model supports the restoration design, the approval process with the Soprintendenza (the Italian heritage authority) and, after the works, the management of the building.

The sector

What do we do on a historic building?

The survey comes first: laser scanning for interiors and exteriors, photogrammetry for façades and decorative features, registered point cloud and orthophotos, carried out by the appointed surveyor. From there we build the HBIM model with a level of detail negotiated element by element with the restoration designers: not everything at maximum precision, but what is needed to make decisions and to manage the building.

Each element carries its own record (material, period, state of conservation, interventions) and the decay mapping is linked to the objects; the delivered model has two levels, one for the restoration and one for subsequent management.

Typical projects

Palaces, churches and monumental complexes
Listed buildings in use: offices, schools, museums
Archaeological areas and structures
Restoration and functional upgrading
Cataloguing and heritage management

Rules and formats

Which rules apply to heritage?

The Cultural Heritage Code (Legislative Decree 42/2004) governs works on protected heritage assets and the relationship with the Soprintendenza; public works on cultural heritage are subject to Legislative Decree 36/2023, with its annex on contracts relating to cultural heritage, and to Annex I.9 for information management.

UNI 11337 and ISO 19650 give the process its structure; for exchange, IFC is used with additional properties for historical and conservation data, defined in the plan.

Typical deliverables

What do we deliver?

Deliverables vary with the stage and the appointment; these are the most common.

Phase	Handover	Who it is for
Modelling from survey data	Existing conditions model from the registered point cloud and orthophotos, survey modelling report with tolerances and interpreted areas	Owning bodies, designers
Model	HBIM model with families of historic elements, catalogue records, decay mapping	Restoration designers
Restoration	Design model, quantities by intervention, documentation for the Soprintendenza	Designers and contractors
Operation	Model with the data for planned maintenance of the building	Owning bodies

References

Why are there no project names here?

Projects in this sector belong to the clients: we do not publish names, locations or images of the assets. In our offers we list projects of the same type and, with the client's consent, someone who can confirm our work.

Why we do not publish our projects

Related services

Which services do we provide in this sector?

Frequently asked questions

The questions we are asked in this sector

How much detail does an HBIM model need?

As much as is needed to make decisions: the level is negotiated element by element with the restoration designers; a model built entirely to maximum precision cannot be kept up to date.

Can the model be used for the approval process with the Soprintendenza?

It serves as the documentary basis: the survey, element records and decay mapping are produced from the model in the required drawings.

Do you work on buildings in use?

Yes; the appointed surveyor organises the laser scan survey by room and at agreed times, without interrupting activities, and BIM modelling from the survey data requires no further access to the building.

Contact

Do you have a historic building to model in BIM?

Tell us about the building and its heritage protection: we will propose the survey modelling, the level of detail of the model and the deliverables.

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