20070328084822.pdfa ED,� City of Edmonds
Q
PLAN REVIEW COMMENTS
BUILDING DIVISION
Fsr. tsg� (425) 771-4224
DATE: March 28, 2007
TO: Karl Morrison
9823 220t€' Street SW
Edmonds, WA 98020
FROM: Jenny Readwin, Plans Emine
`l/
RE: Plan Check # 2007-0293
Project: Deck/Hot Tub
Project Address: 9823 220th St SW
During review of the above noted application, it was found that the following information,
corrections, or clarifications are needed. Please redline plans or submit two (2) sets of revised
plans/documents (affected sheets only) with a written response to each of the items below to a
Permit Coordinator. Please respond to the items below on or before Fridav April 27. 2007 or the
file will be turned back over to Code Enforcement for further action..
1) On the site plan label structure as covered and provide height calculations per attached sample
site plan. If you have questions on height calculations please contact the planning department.
2) Deck construction as shown on the pians does not meet conventional construction. Provide
complete gravity (including footings) and lateral calculations stamped and signed by a
Washington State Licensed Professional Engineer.
3) See attached comments from Linda McMurphy, Water Quality Technician. Please respond to
each item in writing.
City
of Edmonds
NOW
pla' o Review Corrections
Plan. Check #
'ZOO -7 -02-51
Date
Project Name/Address 41,nrri'san,
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Contact Person/Address
Department:
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Engineering
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Height Calculation Information
PROCEDURE: Height must be calculated prior to any on-site grading or alteration of topography. It
is understood that in rare occasions vegetation may have to be removed in order to gain access to grade.
On formai subdivisions of property, a topography map is usually included in the recorded documents
on file with Snohomish County or City of Edmonds. It is highly recommended that applicants utilize
these maps for determination of height.
1 _ To determine the maximum height permitted on a site, stake out the smallest rectangle (within the
boundaries of the site) that encompasses all four corners of the proposed building outline/building
pad at original, undisturbed soil.
2_ Projections such as bay windows must be included within this rectangle.
Exemptions: Chimneys and eaves projecting no more than 30 inches from the exterior wall of
the building and uncovered decks.
3. Select a datum point to establish a starting mark to compute grade elevations at the designated
four corners_ The datum point must be a permanent point of reference. Use the top of a manhole
cover, fire hydrant, or street monument. Reference the datum point elevation at +100. On the
site plan describe the datum point and show its location and elevation.
4. Calculate the difference in elevation from the datum point to each corner of the rectangle (above
or below the starting elevation of +100) at original, undisturbed soil. Next, add the four corner
elevations together and divide by a factor of 4 to determine the average grade of the building pad.
On the site plan show the elevations of the four corners and show the calculations of average
grade.
Take the average grade number and add the maximum allowable height per the specified zoning
district. This elevation is the maximum height allowed for the proposed location of the building.
In the attached example, the single family average grade is +102.5, add +25 feet, for a maximum
height of +127.5. As shown on the plot plan the actual height of the building is +125. Be sure
the average grade, maximum allowed height and actual height are noted on the plot plan and
elevation view.
6. As in the example on the submitted plot plan show all height calculations, the elevation of each
corner, the datum point, the average grade, the maximum height allowed and the actual height of
the building, and on one of the elevation views within the architectural plans, show the average
grade, the maximum height allowed, and the actual height of the building.
NOTE: A height check verification is conducted at the framing inspection. A transit must be
provided on-site to confirm height compliance.
LATEMPIBUILDINGIHANDOUT IC0DESIHEIGHTB4I.D0C
Revised 7/04
'roperty Owner Name
?roperty Address
Tax Account Parcel #
SAMPLE PLOT PLAN
Scale: V=20' +108 +109
IMPERVIOUS SURFACE CALCS (SOLID SURFACES) +106
Exist. Building Roof Outline: 2200 sf. (constr. in 1962) I
Existing Covered Porch: 75 sf. (constructed in 1962) +104 t
Existing Driveway: 610 sf_ (constructed in 1987) +102 .0-00 ,
Existing Patio: 200 sf. (constructed in 1985) I
Proposed Addition: 440 sf. 0 /�.
Proposed Garage: 500 sf.
Proposed Deck: 90 sf.
HEIGHT CALCS
A = +99'
B = +107'
C = +100'
D = +1051
AVE GRADE =102.75'
ACTUAL. = 123'
MAXIMUM =127.75'
LOT COVERAGE:
3515 SQ.FT. (26%)
LOT AREA:
13,527 SQ.FT.
LOT SLOPE: 11%
Property Line
/Existing
+98-0,
+'107
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25--0" r[ExistingResidence
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Existing I ❑ ❑ 3 u _k2 Iy
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Contours
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Existing
u r
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Slope 6%
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+98 .Sidewalk;..
FH Water Meter
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MAIN STREET
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Telephone Pole
DATUM PT.+100'
Center of Right -of -Way
ss Top of S5 Manhole Cover
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