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3. Where .the front yard line shown upon the map or provided in this
<br />ordinance is twenty (20) feet or less, the front yard recDirements on a key lot
<br />shall be one-half (~) of the depth so provided or shown upon said map; where
<br />the front yard line so provided or shown upon the map is more than twenty (20)
<br />feet, the front yard depth on a key lot shall be one-third (1/3) of the depth
<br />so provided or shown upon said map and the front yard depth on the inside lot
<br />adjoining the key lot shall be two-thlr~s (2/3) of the depth so provided or
<br />shown upon said map.
<br />
<br /> For the purpose of this paragraph, a lot classified as R-l, R-2 or
<br />R-3, when next ad3olnlng property classified as C-l, C-2, M-1 or M-3, shall be
<br />considered as a key lot.
<br />
<br /> 4. In computing the depth of a rear yard from any building where such
<br />yard opens upon an alley, one-half (1/2) of the width of such alley may be deeme~
<br />to be a portion of the rear yard; when such yard opens upon a street, or public
<br />park or creek or river front under public ownership, ten (10) feet of such
<br />public open space may be deemed to be a portion of the rear yard.
<br />
<br /> 5. No detached accessory ~ildinM may exceed two stories in height,
<br />nor may it occupy more than two-thirds (2/3~ of the area of a rear yard.
<br />
<br /> 6. Where an accessory building is attached to and made a part of the
<br />main building, at least fifty (50) per cent in the length of one of the walls
<br />of such accessory building shall be an integral part of the main building and
<br />such accessory building shall c~ply in all respectm with the requirements of
<br />this ordinance applicable to a main building. An accessory building, unless
<br />attached to and made a part of the main building as above provided for, shall
<br />be not closer than five (5) feet to the main building.
<br />
<br /> V. Detached accessory buildings in Districts R-l, R-2, and R-3 may
<br />conform to the following regu~tions asto their locations upon the lot;
<br />
<br /> (a) where the slope of the front half of the lot is greater than
<br />(1) foot rise or fall in a four (4) foot run from the established street
<br />elevation at the property line;
<br />
<br />one
<br />
<br /> (b) or where the elevation of a lot ten (10) feet fr~ the front
<br />prop~ty line is six (6) feet or more, above or below the established street
<br />grade at the property line, a private garage may be built to the street and
<br />side lines.
<br />
<br /> 8. In the case of a corner lot abutting upon two (~) streets, no
<br />accessory buildin6 shall be erected, altered or moved so as to encroach upon
<br />the front half (1/2) of such lot, or closer than the front yard requirements
<br />of the adjacent key lot.
<br />
<br /> 9. Cornices, canopies, eaves or any other architectural re,urea may
<br />extend into the front yard for a distance of not to e~ceeO two (2), feet, six (61
<br />inches.
<br />
<br /> A landing ~lace or uncovere~ porch may extend into the front yard to
<br />a ~stance of six (6) feet acres one half the width of the lot, measured from
<br />the front line of the building, provided'that such landing place or porch shall
<br />have its floor no higher than the entrance floor of the building. Stairs lead-
<br />ing from the ground to said landing place or porch may project beyond said six
<br />(6) feet. An open work railing no hig~her than three (3) feet may be placed
<br />around said l~nding place or porch, but not around the stairway leading thereto.
<br />
<br />(d) Non-Conforming Improvements or Uses:
<br />
<br /> 1. Non-conforming uses of any premises shall not be changed except
<br />to a use which is similar in nature, operaticn and degree of c~patibility to
<br />surrounding property, to the use which occupied the premises at the time it
<br />became non-conforming or the use for which the tmilding was intended as provided
<br />in (2) of this paragraph (d). A non-conforming use of any premises may be
<br />changed to a use of s more restricted classification as defined by this ordinance
<br />
<br /> 2. Any non-conforming building or portion thereof which is specificall
<br />designed or arranged or was unquestionably intended to be occupied by or used for
<br />a non-conforming use but was not 'so occupied or used at the ti~ the said use
<br />became non-conforming by reason of this ordinance, may hereafter, if not altered
<br />or repaired as prohibited by the following paragrat~hs, be occupied or used for
<br />the purpose for which it was so designed, arranged or intended.
<br />
<br /> 3. Repairs and alterations which do not enlarge or increase the size
<br />of a non-conforming building or buildings used for non-conforming uses, may be
<br />made to any such building provided' that the aggregate value of all or separate
<br />repairs or alterations shall not exceed fifty (50) per cent of the assessed
<br />value as of the date such building first became non-conforming or was used for
<br />non-conforming uses. No repairs, alterations or additions shall be made to any
<br />building used for a non-conforming use or a non-conforming building which has bee~
<br />damaged by fire, flood, wind, earthquake or other calamity, or which has been
<br />dismantled or demolished by owner, to the extent of more than fifty (505 per cent
<br />of its value at the time of such damage, unless and except every portion of such
<br />building is made to conform with all provisions of this ordinance for new build-
<br />ings, and such non-conforming use is discontinued.
<br />
<br /> 4. No non-c~nforming build~g or improvement or building or improvemen'
<br />used for a non-confoEr..ng use shall be added to or enlarged or structurally
<br />altered in any manner unless such building, improvement, a~¢itions or enlargement
<br />
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