My real question is: Can BIM be used consistently in the planning and construction of new construction projects with multiple condominiums? As the headline for an article, this long question is a little bulky. An old school friend is the boss of a company that primarily deals with these construction projects in the inner-city sector. We had an interesting conversation about BIM.
At first glance, the question seems superfluous, but when it comes to building condos, it looks a little different than when building rental apartments. The fact is undisputed that the ground is finite, that the building ground is becoming more and more expensive and that we therefore must use the building ground several times. This can only be done if we must build up especially in areas where the building ground is particularly scarce and expensive. The failure of local authorities to use land in time for social housing in inner-city, I do not want to discuss in my article, nor do I want to discuss the question of whether condominiums make sense. I am interested in the technical, logistical and projectory components.
A building complex with condominiums is a bigger challenge for BIM than a building complex with rental apartments. A building complex with rental apartments has a builder. A building complex with condos has several builders. Rental apartments are completely planned and built with BIM and are offered and rented afterwards. I can plan and build such a project very well and easily with BIM.
Condos are offered and sold. Each buyer has individual wishes as to what their property should look like and so the planners are ultimately dealing with several parallel plans and construction executions. We cannot circumvent the laws of gravity and the building plot also limits the possibilities of designing the entire building complex.
As usual, the shell construction can be planned and built with BIM. The shell construction specifies the dimensions of the condominiums. But the interior design of the condos poses major challenges for all planners and construction companies involved. Do we even have a chance with BIM? My school friend’s answer is no. I ask the question in a different way: What do we have to do differently to have a chance with BIM?
Let’s compare a building complex with condominiums with a new housing estate. Gradually, the plots are sold, and the houses are planned and built. The biggest drawback for first builders is that they must live the longest with the building noise and the building roads. The biggest advantage is that they have a wide range of plots. If there are only a few plots left, the roads, sidewalks, etc. are laid out. It is then accepted that there may be small damage to the roads and pavements during the construction of the last houses. All in all, all the builders of the new building area accept the negative monitoring circumstances. With BIM, the entire construction area can be planned. There is the BIM model of the construction area with a project plan and each single-family house gets its own BIM model with an own project plan.
In principle, the same thing happens in a building complex with condominiums. The condominiums are gradually being sold and the interior is being individually planned. Any interior design of a condominium can be designed as a BIM project. In the large BIM project shell construction there are then many BIM projects with condominiums. In contrast to a new building area, the associated project plans are much more closely intertwined in this project. The interplay and the mutual influence of the project plans is the challenge and not the BIM planning of the interior design. Once the detached house is finished, the builder can only. In a complex with condominiums, however, the builders cannot be expected or allowed to enter your finished condominiums through a semi-finished building. The entire entrance with the stairwell and elevator must be completed. This cannot happen until all the apartments in the part of the building complex are finished. Free land in built-up areas can be left lying down, but an unsold condominium cannot be left in a blue-building state, while the others are already being used. How should the craftsmen enter the apartment with the material as inconspicuously, quietly and cleanly as possible and to complete the interior design. This logistical challenge has nothing to do with BIM.
The art is to combine the large project and the many small projects so agile that the promised dates for the collection of the owners of the condominiums can be kept or if the situation requires, as early as possible to the owners to name new dates.
Planning the interior with BIM is the prerequisite for collaborative expansion planning for each individually planned interior design project. All tasks are summarized under a milestone that can be shifted agile. In the overall overview of all tasks and milestones, you can then see how the individual trades are used throughout the entrance to the house. It makes sense to let certain activities take place as a block. The entire construction team, however, must decide how to set the priorities. Even the unsold condos must be completed up to a day X. As a rule, there is a kind of model apartment for the building complexes. This model apartment also has an individual schedule. Attempts are being made to delay the construction for as long as possible, always in the hope of finding a buyer, who would then like to be given the chance to realize individual wishes. The resulting tasks must then be installed agile in the milestone of the apartment. You can immediately see at a glance how the tasks in the big schedule are presented and whether the craftsmen can realistically implement this.
The consistent use of BIM in the planning and construction of condominiums is feasible if the planners master their digital tools. In addition, the BIM manager (project manager) needs software that implements the planning and construction agile, transparent, cooperative and collaborative. If you don’t have suitable software, please contact me.