Sec. 70-453

Other

• Landscape plan tree size threshold12 in

  All existing trees on the site 12 inches or greater in diameter at breast height (DBH) shall be shown in the landscape and clearing plan.

• Landscape and clearing plan waiver - disturbance threshold10,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  The administrator may waive the requirements of the landscape and clearing plan if the proposed clearing and/or grading is less than 10,000 feet.

• Plan of development required - disturbance threshold2,500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Any development or redevelopment exceeding 2,500 square feet of land disturbance in the Chesapeake Bay Preservation Area (CBPA) shall be accomplished through a plan of development process prior to any clearing or grading of the site or the issuance of any building permit

• Replacement tree minimum diameter at breast heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.2.5 in

  Replacement trees shall be a minimum of 2½ inches DBH at the time of planting.

• Stormwater facility installation deadline18 months

  All required stormwater management facilities or other specifications shall be installed and approved within 18 months of project commencement.

• Stormwater management plan waiver - imperviousImpervious coverageThe share of a lot covered by anything water cannot soak through — roofs, drives, patios. cover threshold16 pct

  Impervious cover is less than 16 percent of the site; and Development is for a single-family residence, or addition to existing homes, or utility buildings, garages, and other structures accessory to single-family residences, and agriculture structures, on a lot or parcel one acre or larger in size.

• Tree replacement ratio2 ratio

  Where areas to be preserved, as designated on an approved landscape and clearing plan, are encroached, replacement of existing trees and other vegetation will be achieved at a ratio of two planted trees to one removed.