BIM consultancy
B1P Group's BIM consultancy is for those who design, build or operate an asset and must use the information model as the contract requires: we write or review exchange information requirements and BIM execution plans, model and coordinate the disciplines, check the models and organise the handover, in line with Legislative Decree 36/2023, UNI 11337 and ISO 19650. Projects across Italy and abroad, with meetings at company and partner premises.
One model. Four stakeholders. One direction.
Designers, contractors, clients and manufacturers work on the same information model. B1P Group steers the process: requirements, coordination and checking before handover.
What is BIM consultancy?
BIM consultancy is the service through which a specialist firm supports those who design, build or operate an asset in using the information model: it decides what to model and with which data, writes or reviews the documents that govern it (exchange information requirements and BIM execution plans), coordinates those who produce the models, checks them and organises the handover. In Italy the framework is set by the Public Contracts Code (Legislative Decree 36/2023, art. 43 and Annex I.9), by the guidelines of the Ministry of Infrastructure and Transport and by the UNI 11337 and ISO 19650 standards. B1P Group provides it to designers, contractors and clients, at company and partner premises, in 18 sectors.
- BIM
- Building Information Modelling: the method that describes an asset with a digital model made of objects and data, shared by everyone involved in the process, from survey to operation.
- Exchange information requirements
- The document in which the client states what it wants to receive in BIM: model uses, levels of information need, formats, common data environment, checks. It is written by the contracting authority, alone or with a consultant (capitolato informativo in Italy).
- Pre-appointment BIM execution plan (oGI)
- The bidder's response to the information requirements at tender stage: how it intends to organise people, tools and flows to meet the requirements. It is part of the technical proposal.
- BIM execution plan (pGI)
- The pre-appointment plan turned into an operating plan after the award: roles, delivery schedule, model structure, naming rules, checking procedures.
- CDE
- Common data environment (ACDat in Italy): the platform where models and documents are uploaded, reviewed, approved and archived with full traceability.
- Model checking
- The check that the delivered models meet the information requirements: geometry, information content, clashes (clash detection), design rules (rule-based checking), with a checking report.
Who needs BIM consultancy?
Four stakeholders who look at the same model from different points of view. A consultant is needed when BIM is required by a contract, when in-house expertise is missing or when the workload of a project exceeds the capacity of the practice or the company.
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Designers
Architecture practices and engineering firms that must deliver a coordinated design in BIM, respond to information requirements or model a discipline they do not have in-house. B1P Group acts as an external BIM department: it models, coordinates, writes the pre-appointment BIM execution plan and checks before handover.
BIM for designers -
Contractors
Contractors bidding for tenders with BIM requirements and managing the model on site: buildability, time in 4D, quantities and cost in 5D, progress and interim valuations, and the as-built model to hand over to the client at the end of the works.
BIM for contractors -
Clients
Public bodies and owners of networks and property portfolios that must request BIM in tenders the right way, check what they receive and use the model data to operate the asset over time. B1P Group works alongside the RUP (sole project manager): organisational act, information requirements, training for the people who carry out the checks, data for operation.
BIM for clients -
Manufacturers
Companies that make components and equipment for networks, building services and infrastructure and must supply asset owners and designers with BIM families that meet their requirements. B1P Group turns factory 3D models (Inventor, SolidWorks, STEP) into parametric Revit families, with the data and level of detail required by the specification.
BIM for manufacturers
What does B1P Group's BIM consultancy include?
Seven services across the life of the asset, plus artificial intelligence applied to models: eight in total. Each service has defined deliverables, a reference standard and a market it is designed for; they can be bought separately or as a complete path. The consultancy also includes BIM implementation in organisations; training is a separate offer.
| Service | What we deliver | Who it is for | Reference |
|---|---|---|---|
| BIM modelling from survey data | Model of the existing conditions from the survey point cloud, with the level of detail required by the information requirements, and a survey modelling report | Designers, clients | UNI 11337-4 for levels of development |
| BIM modelling | Discipline models in Revit and Civil 3D (architecture, structure, building services, infrastructure), families and standards, IFC export, schedules and quantities from the modelAlso outsourced under the partner's name | Designers, contractors | UNI 11337-1 and 4, IFC ISO 16739 |
| BIM management and information management | External BIM managers and BIM coordinators, exchange information requirements, BIM execution plan, CDE set-up and management, coordination and clash detection procedures | All | ISO 19650-1 and 2, UNI 11337-5 and 6 |
| BIM tender support | Review of the information requirements, pre-appointment BIM execution plan, post-appointment plan after the award, contract review with the law firm Studio Legale Piselli & Partners | Designers, contractors | Legislative Decree 36/2023 art. 43 and Annex I.9 |
| BIM model checking | Geometric and information checks, clash detection, rule-based checking, checking report with non-conformities and correction requests | Designers, contractors | UNI 11337-5 and 7, ISO 19650-2 |
| BIM for construction and as-built | Construction model, 4D programme, 5D quantities and progress, interim valuations on the model, as-built model and data for the handover of the asset | Contractors, clients | UNI 11337-4, information requirements |
| Asset operation | From the as-built model to the digital twin: maintenance data, integration with facility management systems, property portfolio management | Clients, asset operators | ISO 19650-3 |
| Artificial intelligence for BIM | Tailored automation for Revit and Civil 3D, element recognition and automated checking, rules of use and training that comply with the AI Act | All | Regulation (EU) 2024/1689 |
Training: mainly delivered for third parties, for training providers, professional bodies, software vendors and companies, plus classes for individuals and companies, on every BIM topic and on AI in BIM.
How do we work?
In four steps, always the same, scaled to the size of the project: from a check of a few days to years of support on an infrastructure project. Each step has a measurable deliverable and a person in charge with the role set out in UNI 11337-7.
- 01
Review and offer
We review the information requirements, the contract and the available documents; we estimate disciplines, levels of information need and time; we write the offer, technical and financial, by the hour or as a lump sum.Deliverable: pre-appointment BIM execution plan or quote
- 02
Plan and mobilisation
We write the BIM execution plan, set up the common data environment, templates and naming rules, appoint the roles and agree the delivery schedule.Deliverable: BIM execution plan, configured CDE, templates
- 03
Production and coordination
We produce or receive the discipline models, federate them, resolve clashes in coordination meetings and check the data at every interim delivery.Deliverable: federated models, coordination reports
- 04
Checking and handover
We check the models against the information requirements, produce the checking report, export to IFC and the required formats, and hand over the as-built model and the data for operation.Deliverable: checking report, IFC, as-built model
| Role (UNI 11337-7) | What it does | When we provide it |
|---|---|---|
| BIM manager | Sets the rules of the information process for the organisation or the project, writes the requirements and the plan, reports to the client | When the designer, the contractor or the client has no one in-house |
| BIM coordinator | Coordinates the discipline models, manages clashes and deliveries on the CDE, checks compliance with the plan | On projects with several disciplines or several suppliers |
| BIM specialist | Models their own discipline and produces drawings and data from the model according to the rules of the plan | For missing disciplines or workload peaks, as hourly support |
| CDE manager | Administers the common data environment: users, folders, approval states, archiving | When the CDE is provided by B1P Group or has to be set up for the client |
Which standards govern BIM consultancy in Italy?
BIM in public procurement is mandatory by law above a value threshold; below it, it remains the client's choice. Technical standards set out how to write the documents and how to check the models. These are the ones we apply and cite in our documents.
- Legislative Decree 36/2023, art. 43The Public Contracts Code: from 1 January 2025 contracting authorities adopt digital information management methods and tools for new works and for works on existing assets with a tender value above 2 million euros (threshold set by the corrective decree, Legislative Decree 209/2024). Before requiring BIM, the authority must have an organisational act and trained staff.
- Annex I.9 to the CodeIt sets the contents of the organisational act, the exchange information requirements, the pre-appointment and post-appointment BIM execution plans and the common data environment. It is the structure we follow when we write these documents for a contracting authority or a bidder.
- MIT guidelines of 23 February 2026The Ministry of Infrastructure and Transport's operational guidance on digital information management for contracting authorities: how to set up the information requirements, which model uses to request, how to check. A second document, on the construction phase, is expected in 2026.
- UNI 11337The Italian standard on the digital management of construction information processes: part 1 (models, drawings and objects), part 4 (levels of development), part 5 (information flows), part 6 (guidelines for the information requirements), part 7 (roles: BIM manager, coordinator, specialist, CDE manager). B1P Group trains people for these roles. The exam is taken at How Strategy Solution, our partner assessment body (OdV), qualified by IQUA; the certificate is issued by IQUA. Training and exam remain separate paths.
- ISO 19650The international standard on information management using BIM: part 1 (concepts and principles), part 2 (delivery phase), part 3 (operational phase), part 5 (security-minded information management). It is the reference for private and international projects and for certifiable BIM management systems.
- ISO 9001 and qualificationsB1P Group's quality management system is ISO 9001 certified. B1P Group is affiliated with and works alongside the leading Italian and international software resellers. Legal support on contracts and information requirements is provided by Studio Legale Piselli & Partners.
What kind of projects do we work on?
Railways and tramways, stations, tunnels, bridges, roads, airports, hospitals, industrial plants, historic buildings, residential and commercial: 18 sectors, in Italy and abroad. As a company policy we do not publish our projects: the reason is explained on the Sectors page, where you will also find the standards and typical deliverables of each sector.
Where do we work?
We work across Italy and abroad through the common data environment. Meetings and working sessions take place at company and partner premises; site visits are made when needed.
The questions we are asked most often
Who writes the exchange information requirements?
The contracting authority, which is responsible for them and attaches them to the tender documents. It can be assisted by a consultant: B1P Group supports the drafting, following Annex I.9 and UNI 11337-6, and tailors the requirements to the asset, to the model uses that are really needed and to the market's ability to respond.
Is BIM mandatory for my contract?
Yes, for new public works and for works on existing assets with a tender value above 2 million euros, from 1 January 2025 (art. 43 of Legislative Decree 36/2023, threshold set by the corrective decree). Below the threshold it is the contracting authority's choice; in private contracts it depends on what the client requires.
What is the difference between the pre-appointment and the post-appointment BIM execution plan?
The pre-appointment plan (oGI in Italy) is written at tender stage and explains how the bidder intends to meet the information requirements; the post-appointment plan (pGI) is written after the award and turns the offer into operating rules: roles, schedule, model structure, checking procedures. The plan is updated during the project.
Do I need an in-house BIM manager or is an external consultant enough?
For a single project, an external BIM manager named in the plan is enough. Organisations that deliver several projects in BIM benefit from training someone in-house: in that case the consultant sets the rules, trains the people and supports them on the first projects, then steps back.
How much does BIM consultancy cost and how long does it take?
It depends on disciplines, levels of information need and project duration. Information requirements, BIM execution plans and model checks are quoted as a lump sum; support from BIM specialists and coordinators by the hour or by the day. A model check takes days, a plan weeks, project support months. The quote follows a review of the requirements and the available documents, with times and deliverables in writing.
Does the consultancy include training?
No, it is a separate offer that can be combined with consultancy. Training is mainly delivered for third parties, under the brand of training providers, professional bodies, software vendors and companies, on Revit, Civil 3D, information management and artificial intelligence in BIM, including preparation for UNI 11337-7 personnel certification. We also run classes for individuals and companies.
Let's talk about your project
Send us the information requirements or the documents you have: we reply with a written proposal, with times and deliverables.