HomeMy WebLinkAboutGrade Determination Response_19y08_29
To: Ben Zdeba From: Tyler Wilson, AIA
City of Newport Beach CC: Jeff Van Voorhis, AIA
Building Division Brandon Architects, Inc.
100 Civic Center Drive 151 Kalmus Dr.
Newport Beach, CA 92658 Suite G-1
T: 949.644.3200 Costa Mesa, CA 92626
T: 714.754.4040
Date: 8.30.2019
RE: 20462 SW Birch St. – Grade Determination
Dear Mr. Zdeba,
Thank you for taking the time to review and respond to our previous submittal.
Both the subject lot (Parcel 1 on the submitted survey) and the adjacent lot (Parcel 2) have been graded
and altered from their natural grades. Most notably, images #1 and #2 show that the site was extensively
cut to keep the garage on the same level as the residence. The FFG of the garage is currently at 43.72’
which is ~6-7 ft lower than the 50-51’ contours on parcel 2. In addition, the southern PL wall of both
parcels is a retaining wall that separate the grades of the Lot 123 by roughly 2’. The grade is similarly
retained on the eastern side of parcel 2. These conditions are shown in images #3-#7.
To account for the grading on the subject lot, we have developed a “Natural Grade” contour exhibit that
reestablishes the grade prior to any modification on both Parcel 1 and Parcel 2. We have extended the 44’-
50’ contours on the northern portion of parcel 2 to follow the outline of Birch St and reconnect at their
corresponding points on Mesa Dr. Contours 51’-55’ tie into the contours on the east PL of Parcel 2 and
reconnect to the contours on Lot 123. Contours 51-55’ have been equally spaced to reestablish the natural
slope up to Lot 123.
Using these contours would provide a more accurate representation of the natural grade than the current
condition of the site topography.
Thank you for your time and please do not hesitate to call if you have any questions.
Best Regards,
Tyler Wilson, AIA