Q2-1 This is my first time working on a development project in Yokohama. How do I do it?

As a pre-procedure for development permission, we have to follow the procedures of the ordinance. In addition, among technical standards necessary for design, there are Yokohama-shi original standards and interpretations, so first please read the latest "guide of development permission" and "guide of adjustment regulations" Please bring your drawings etc. and consult directly with the person in charge of permission.
In addition, please read "guide of residential land development" as plan of construction must conform to house building standard when development is accompanied.
References to this answer

• Standards for development permission
  "Guide to Development Permits" - Technical Standards -
• About procedure, standard of the regulations
  "Guide to Adjustment Ordinance"Part 2, Chapter 2, Chapter 3
• About house building standard
  "Guide to Residential Land Development"Part 2

Contact for inquiries regarding this answer

• Procedure for permission (the contact person in charge of permission)
  Housing and Architecture Bureau Residential Land Examination Department

For specific content in a specific location, please contact the person in charge of each area.