1. Concept Design

The first stage is concept design, which involves selecting materials, colors, textures, and other design elements for the space. During this stage, it is essential to consider factors such as budget constraints and any local regulations that may impact the design choices. Once an overall look has been established, detailed drawings will need to be created to move forward with actual construction work.

2. Drawing Review

Next comes drawing review by both the landlord and tenant groups; once these parties have approved all aspects of the drawings, then permits must be obtained from relevant authorities before proceeding further. In many cases, zoning laws or building codes require additional modifications, so those responsible for obtaining permits must be aware of what needs to happen ahead of time to avoid delays down the line.

3. Construction

Once you have cleared these hurdles, then it's time for construction, where walls, partitions, and other structures will begin taking shape based on plans previously agreed upon by both parties involved (landlord & tenant).

4. Electrical System Installation

After construction is complete, it's essential not to forget about systems installation such as electrical wiring/plumbing/HVAC, etc., which are necessary for long-term functionality but often overlooked during earlier planning stages due to their hidden nature inside walls, etc.

5. Finishing

After everything else has been installed comes interior finishing, including paintwork, carpeting/flooring, etc., which makes up the majority of visual appeal associated with new offices or retail stores, etc.

With the successful completion of all stages mentioned above, you should now have a brand new space ready for occupation!