The phrase 'initial planning stage' is correct and usable in written English.
You can use it to refer to the beginning of a process or project, when the foundations are first being laid. For example, "The project is still in its initial planning stage, but it looks promising."
The first is to focus on the initial "planning stage".
It can serve as a useful methodology to support the decision making during the initial planning stage of the product development cycle.
It is argued that teacher development programmes should be designed to build an evidence base from the initial planning stage and be continued over an extended period in order to enable practitioners, researchers and institutions to ask more complex questions on whom the programmes have an impact, and where and why they have impact.
Villagers' influence in the decision making process in construction of structures was limited only to the initial planning stage - in deciding on the location of the site, where 50 percent of respondents participated.
"This was still in the initial planning stages.
Ms. Deeks did credit America West for including its flight attendants in the initial planning stages for the program.
Many of these can be incorporated into the design of the park during the initial planning stages, such as creating slides that reduce splashing.
During the initial planning stages, building performance simulation (BPS) can be used to inform design decisions.
The Dashboard architecture has, from the initial planning stages, been implemented in a manner that allows for additional modules and data streams to be readily and efficiently incorporated.
Modern software design processes were used in the initial planning stages of Avogadro, along with the choice of modern programming languages and libraries.
Whether the plot ever progressed past the initial planning stages is unclear; some of the organizers were arrested shortly after the online discussions.
