HOAI work phases & their significance for construction projects
Die Fee schedule for architects and engineers (HOAI) is an indispensable set of rules for planning and construction projects in Germany. It regulates the fees and duties of Architects and Engineers and offers clear structures for the entire planning and construction process. At the heart of HOAI are work phases (LPH) 1-9, which specify in detail which tasks are required in the various stages of a construction project.
What are the HOAI service phases?
The HOAI service phases divide the construction process into nine phases, which range from the initial concept to the completion and support of the property. Each phase comprises specific services that are important for both architects and engineers to successfully implement a project. These phases provide a clear structure to define time frames, budgets, and responsibilities.
An overview of the 9 work phases of the HOAI
1 ️ Basic analysis
The first phase serves to define the main framework conditions of the project. Here, the client's requirements are collected and analysed so that a solid basis for planning is created.
2 ️ Pre-planning (project and planning preparation)
In this phase, the project concept is specified and initial rough drafts and cost estimates are prepared. The preliminary planning serves as a basis for the design phase and provides initial guidance on the feasibility of the project.
3 ️ Design planning
This is where the final draft of the project is developed, including detailed plans that meet all design and functional requirements. A detailed cost calculation is carried out to check the profitability of the project.
4 ️ Approval planning
This phase includes obtaining the necessary regulatory approvals. All technical and construction law aspects are checked and integrated into the planning so that the construction project is legally protected.
5 ️ Execution planning
Implementation planning includes the preparation of detailed construction plans, which serve as the basis for construction. Here, Materials, Construction Details and Timelines are defined in order to precisely control the construction process.
6 ️ Preparation for awarding
In this phase, the tender documents are prepared and potential contractors are invited to submit bids. A detailed terms of reference will be prepared to facilitate subsequent awarding.
7 ️ Involvement in awarding
Here, the offers received are reviewed and contracts are concluded with the executing construction companies. The Architect or Engineer supports the client in selecting suitable companies.
8 ️ Object Monitoring (Construction Supervision)
Construction supervision ensures that the construction project is implemented in accordance with the plans. Architects and Engineers monitor construction progress, coordinate the various trades and ensure that the budget and schedule are met.
9 ️ Property Support
In the last phase, the building is handed over to the client and any defects are repaired during the warranty period. In addition, the documentation necessary for the subsequent operation of the building is created.
HOAI calculator: How do you calculate the fees?
The fees for the services provided are calculated on the basis of the eligible costs and fee zones. The eligible costs relate to construction costs, including certain types of costs, such as technical equipment and building construction. A HOAI calculator Can provide helpful support here to simplify fee calculation.
Conclusion: HOAI and digital tools for successful project implementation
The HOAI service phases provide clear guidelines for architects and engineers to implement construction projects in a structured and transparent manner. Digitale Project management tools Help you keep an eye on all phases and ensure smooth communication between all parties involved. In this way, the entire construction process can be designed efficiently and successfully.