Explanation
Achievement of the Location and Transportation Credit, Surrounding Density and Diverse Uses may be affected by the move of the main entrance to the opposite side of the building. This is because the credit requires that the project be located within a minimum density area and within walking distance of diverse uses1. The walking distance is measured from a main functional entry of the project building to the diverse use entry1. If the main functional entry is moved, the distance to the diverse uses may change and affect the credit achievement. The other credits are not affected by the move of the main entrance, as they are based on the location of the project site, not the building entry. The Location and Transportation Credit, High-Priority Site rewards projects that are located on sites that are previously developed, infill, or adjacent to existing development2. The Location and Transportation Credit, Sensitive Land Protection rewards projects that are located on sites that do not contain sensitive land features such as prime farmland, wetlands, or habitats3. The Location and Transportation Credit, LEED for Neighborhood Development Location rewards projects that are located within the boundary of a LEED for Neighborhood Development certified plan4.
References:
*Surrounding density and diverse uses, p. 1
*High-priority site, p. 1
*Sensitive land protection, p. 1
*LEED for neighborhood development location, p. 1

Installing a bioretention area is an example of a low-impact development (LID) practice that can reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site. This approach will contribute to maintaining compliance with Sustainable Sites Credit, Rainwater Management, which requires designing the site to retain the runoff from the developed site for at least the 80th percentile of rainfall events1. Reference:
Credit: Rainwater management | U.S. Green Building Council
Achieving SSc Rainwater Management in LEED v4.1

ASHRAE 62.1-2010 is the standard that an engineer should use when establishing minimum ventilation rates for a new mechanically ventilated space to earn Indoor Environmental Quality, Minimum Indoor Air Quality Performance. This is the standard referenced by the LEED v4 BD+C Reference Guide for this prerequisite.
Local building code, International Mechanical Code 2012, and the ventilation code requiring the greatest volume of outside air are not acceptable alternatives for this prerequisite.

Explanation
Exemplary Performance is not available for Option 2 of Location and Transportation Credit, Surrounding Density and Diverse Uses. According to the LEED v4 BD+C Reference Guide, this credit has two options:
Option 1. Surrounding Density (5 points) and Option 2. Diverse Uses (1 point). Exemplary Performance is only available for Option 1, and it requires achieving a surrounding density of at least 405,000 square feet per acre (100,000 square meters per hectare)1. Option 2 does not have any Exemplary Performance criteria, and it only requires locating the project within a 1/2-mile (800-meter) walking distance of at least seven diverse uses2. References:
Credit: Surrounding density and diverse uses | U.S. Green Building Council Surrounding Density and Diverse Uses - LEED v4

Explanation
The Integrative Process credit under the LEED BD+C v4 rating system encourages the coordination of all the project team members, starting from the predesign phase, to discover unique opportunities for project design, enhanced building performance, and green features. The three phases within the Integrative Process Credit are:
* Discovery phase: This involves investigating at least two energy-related and several water-related sustainable design strategies prior to the end of schematic design1.
* Design and Construction (implementation) phase: This requires the project teams to turn their findings into reality2.
* Occupance, Operations, and Performance Feedback phase: This phase involves the evaluation of the implemented strategies and their effectiveness3.
References:
* LEED Integrative Process Credit Explained - Projectific, Inc.
* LEED AP BD+C v4 - Integrative Process Flashcards | Quizlet
* Achieving the LEED v4 Integrative Process Credit - SketchUp