Every lot must provide front, rear and side yards as required for its zone. All front yards must face upon a public street or private street approved by the planning board or governing body. On streets less than 40 feet in right-of-way width, the required front yard shall be increased by one-half the difference between the width of the street and 40 feet.

Front, side and rear building locations within five feet of the minimum setback requirements of this chapter shall be surveyed and certified by a licensed engineer or land surveyor. The survey may be performed at any time prior to the erection of the building above the foundation. A certified copy of the survey shall be presented to the construction official when the foundation of the building is complete.

Where a building lot has frontage upon a street which, on the master plan or official map of the municipality is proposed for right-of-way widening, the required front yard setback shall be measured from such proposed future right-of-way line.