The most important aspect of any building project is a good collaboration between client, designer, and builder. In this process, the client must be comfortable with both the designer and the builder.

After the client decides upon a project, a designer needs to be chosen. First, a decision needs to be made whether to undertake a design/build project (where the designer is also the builder), or a project where design and construction are taken as separate steps (where an architect is used for the design phase, and a builder for the construction phase).

Both are good choices. Sometimes a client will have seen an example of an architect's work, and would like to invite him or her do the design. Often, an architect is a good choice for a large project (such as a new house). An architect will generally charge for his time starting at the first meeting. Also, when an architect is involved, the design work must be completed before building costs can be determined.

A design/build project is an excellent choice for projects where one or several rooms are to be renovated. Working with the designer who is also the builder simplifies the entire design process and allows an integration of the design work together with the builder's specifications and costs. A design/builder will usually provide preliminary sketches before fees or contracts are discussed.

Once this choice is made, the actual design work can commence. With the budget in mind, the designer works with the client to form an overview of the project. At the first meeting, the owner will discuss needs, wants, desires, and of course, budget. Perhaps a second meeting will be desired, with further discussions undertaken. Then, the preliminary sketches will be produced.

Further discussions and sketches will result in the detailed drawings and floorplans that comprise the working drawings. This stage usually requires a month or two, sometimes longer, to produce plans satisfactory to the client. The input of a structural engineer is often required at this point. Most jurisdictions require the input of an engineer if any structural work is to be undertaken. In other words, changes in wall locations, doorways, window openings, or other structural alterations (including room additions) need the input of an engineer before any application for the building permit is to be undertaken.

In addition, changes visible from the exterior of the home (except for window and door repairs) require an application to a planning body. Obtaining this approval can be the most time consuming and frustrating part of any project. Planning commissions are notorious for introducing red tape and issuing confusing instructions. A good designer has experience in dealing with this difficult phase, and will handle this part of the project with minimal impact to the client.