Interior design is a multi-faceted process in which creative and technical solutions are applied within a structure to achieve a built interior environment. These solutions are functional, enhance the quality of life and culture of the occupants, and are aesthetically attractive. Designs are created in response to and coordinated with the building shell, and acknowledge the physical location and social context of the project. Designs must adhere to regulatory requirements and encourage the principles of environmental sustainability. The interior process follows a systematic and coordinated methodology including research, analysis and integration of knowledge into the creative process, whereby the needs and resources of the client are satisfied to produce an interior space that fulfills the project goals.

A space analysis study is an analysis of an existing building/property to locate problem areas and to provide a basis for judgment in evaluating major changes. Also, it can be in the form of planning tools that will be used by the client in developing a planning decision. This includes space standards, adjacency requirements and space requirements.

Site analysis examines and records the existing characteristics of the site, and its surroundings, and identifies the opportunities and constraints for the site. Numerous elements go into a given site analysis and may include examining the physical location of the property, surrounding property, zoning, natural physical features, and utilities.

Cost estimating is the act of predicting the total costs of labor, materials, capital, and professional fees required to construct a proposed project. It provides the basis for feasibility studies, business planning, budget preparation and cost and schedule control. Cost estimates are performed at a certain point in time, based on information available at the time with given resources and time constraints. Information gathered may include cost estimate details, a cost estimate summary, and a basis of estimate.

A master plan provides a blueprint for the future and provides a general framework for development. The plan gives direction for positive change, indicating how much and what kind of development is appropriate. A successful plans includes:

• Financial feasibility - the phasing of the plan's capital projects should be aligned with identified need and the ability to secure available funding.
• Environmental compatibility - the plan should minimize potential environmental impacts.
• Balance - the plan should maintain a balance between development needs and community impacts.
• Technically sound design- the plan should comply with Federal, State, and local requirements and it should be able to be constructed efficiently and cost effectively.
• Responsiveness - the plan should address the physical and operational needs of stakeholders
• Flexibility - the plan should consider changes.