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 Wilmette
 Code of Ordinances
 Appendix A. ZONING ORDINANCE
 Article 30-8. RESIDENTIAL ZONING DISTRICTS

  § 30-8.3. Bulk and yard regulations.  

Latest version.

  • The bulk and yard regulations for the residential districts are separated into two (2) separate tables. Table 8-2: R, R2, R3 and R4 Residential Zoning Districts Bulk and Yard Regulations establishes bulk and yard regulations for the R, R2, R3 and R4 residential zoning districts. Table 8-3: R1 Sub-District Residential Zoning Districts Bulk and Yard Regulations establishes bulk and yard regulations for the nine (9) R1 Sub-districts. The following additional standards apply to the bulk regulations:

    (a)

    Building Height.

    (1)

    On lots that slope downward towards the rear or side lot line, the height of the principal building shall not exceed a height of forty-five (45) feet as measured perpendicular to the existing grade.

    (2)

    Single-family and two-unit dwellings with a predominantly flat roof, as determined by the Zoning Administrator, may not exceed a maximum height of twenty-seven (27) feet and two (2) stories.

    (3)

    Non-habitable architectural features on institutional use principal buildings shall not exceed a height of sixty (60) feet provided that all required side and rear yards shall be increased by one (1) foot for each additional foot of height over thirty-five (35) feet.

    (b)

    Townhouse/Stacked Flat Development.

    (1)

    Bulk and yard requirements shall apply to the development as a whole, rather than to each individual dwelling unit, and shall not apply to lot lines dividing dwellings that share a party wall.

    (2)

    When developed so that the individual units face the side lot line rather than the street, the combined side yards shall be no less than fifty percent (50%) of the lot width, with no one (1) side yard being less than twenty (20) feet.

    (c)

    Multi-Family Dwellings.

    (1)

    In the R4 district any side yard and rear yard that abuts property in an R, R1, R2 or R3 district shall be increased by one (1) foot for each one (1) foot above thirty-five (35) feet that the principal building or structure exceeds a height of thirty-five (35) feet.

    (d)

    Maximum Lot Coverage and Floor Area for Single-Family Dwellings. The maximum lot coverage and floor area for single-family dwellings shall be one (1) of the two (2) following formulas, applicable as referenced in Table 8-2: R, R2, R3 and R4 Residential Zoning Districts Bulk and Yard Regulations and Table 8-3: R1 Sub-District Residential Zoning Districts Bulk and Yard Regulations:

    (1)

    Original (1990).

    (A)

    Lot Coverage: (0.40-((1.33 x Lot Area)/100,000)) x Lot Area

    In no event shall the maximum lot coverage be less than 20%.

    (B)

    Floor Area: ((0.40-((1.33 x Lot Area)/100,000)) x 1.5) x Lot Area

    In no event shall the maximum floor area be less than 30%.

    (2)

    Modified (2003).

    (A)

    Lot Coverage: (((0.5-(Lot Area/80,000))/1.38)) x Lot Area

    In no event shall the maximum lot coverage be less than 20%.

    (B)

    Floor Area: ((0.5-(Lot Area/80,000))) x Lot Area

    In no event shall the maximum floor area be less than 30%.

    (3)

    Lot Coverage and Floor Area Bonuses. Lot coverage and floor area bonuses in addition to the maximum lot coverage and maximum floor area established by formula above shall be applicable as referenced in Table 8-2 and Table 8-3.

    VILLAGE OF WILMETTE, ILLINOIS

    TABLE 8-2: R, R2, R3 AND R4 RESIDENTIAL ZONING DISTRICTS BULK AND

    YARD REGULATIONS
    DISTRICTS
    R
    		R-A
    		R2
    		R3
    		R4
    LOT AND HEIGHT REGULATIONS
    MINIMUM LOT AREA 15,000 s.f. 10,000 s.f. Townhouse/
    Stacked Flat: 3,000 s.f./du
    All Other Uses: 8,400 s.f.     		Townhouse/
    Stacked Flat: 3,000 s.f./du
    All Other Uses: 8,000 s.f.     		Townhouse/
    Stacked Flat: 3,000 s.f./du
    All Other Uses: 6,000 s.f.
    MINIMUM LOT WIDTH 100' 60' Townhouse/
    Stacked Flat: 100'
    All Other Uses: 50'     		Townhouse/
    Stacked Flat: 100'
    All Other Uses: 50'     		100'
    MAXIMUM BUILDING HEIGHT (1) Lesser of 35' or 2.5 stories Lesser of 35' or 2.5 stories Lesser of 35' or 2.5 stories Multi-Family: Lesser of 48' or 4 stories
    All Other Uses: Lesser of 36' or 2.5 stories     		85'
    MAXIMUM FIRST FLOOR HEIGHT (2) SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'
    Townhouse/
    Stacked Flat: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		Not Applicable
    MINIMUM YARD REGULATIONS
    FRONT YARD Greater of 40' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 30' or Established Front Yard
    INTERIOR SIDE YARD SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 50'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 50'     		SF Dwelling: Greater of 10% of lot width or 5'
    Townhouse/
    Stacked Flat:
    Greater of 10% of lot width or 5' (10)
    All Other Uses: (11)     		12' Dwelling: 12' (4)
    All Other Uses: 30'
    COMBINED SIDE YARD Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5' 24'
    SIDE YARD ADJOINING A STREET SF Dwelling: 30% of lot width, min. of 15' to a max. of 30'
    All Other Uses: 50'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 30'
    All Other Uses: 50'     		30% of lot width, min. of 15' to a max. of 25' SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 25'     		Dwelling: 24'
    All Other Uses: 60'
    REAR YARD SF Dwelling: 20% of lot depth, min. of 40' to a max. of 50' (3)
    All Other Uses: 50'     		20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 50'     		20% of lot depth, min. of 30' to a max. of 40' 20% of lot depth, min. of 30' to a max. of 40' 35' (4)
    MAXIMUM AREA AND COVERAGE REGULATIONS (5)
    MAXIMUM LOT COVERAGE SF Dwelling:See 30-8.3.(d)(2)(A)
    Other Uses:
    Not Applicable     		SF Dwelling:See 30-8.3.(d)(2)(A)
    Other Uses:
    Not Applicable     		SF Dwelling:See 30-8.3.(d)(2)(A)
    Two-Unit:
    ((0.5-(Lot Area/80,000))/1.38) x 1.25) x Lot Area
    Other Uses:
    Not Applicable     		SF Dwelling:See 30-8.3.(d)(2)(A)
    Other Uses:
    Not Applicable     		Not Applicable
    MAXIMUM LOT COVERAGE
    BONUS FOR
    GARAGE     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		Not Applicable Not Applicable
    MAXIMUM FLOOR AREA SF Dwelling:See 30-8.3.(d)(2)(B)
    All Other Uses:
    (0.7 x Lot Area)     		SF Dwelling:See 30-8.3.(d)(2)(B)
    All Other Uses:
    (0.7 x Lot Area)     		SF Dwelling:See 30-8.3.(d)(2)(B)
    Two-Unit: ((0.5-(Lot Area/80,000)) x 1.25) x Lot AreaTownhouse/
    Stacked Flat: (0.7 x Lot Area)
    All Other Uses:
    (0.8 x Lot Area)     		SF Dwelling:See 30-8.3.(d)(2)(B)
    Two-Unit: ((0.5-(Lot Area/80,000)) x 1.25) x Lot AreaTownhouse/
    Stacked Flat: (0.7 x Lot Area)
    All Other Uses:
    (1.0 x Lot Area)     		3.0
    MAXIMUM FLOOR AREA BONUS FOR GARAGE (6) (7) 440 s.f. 440 s.f. 440 s.f. 440 s.f. Not Applicable
    MAXIMUM FLOOR AREA BONUS FOR FRONT PORCH (8) (Lot Area /8,400) x 200, but not to exceed 200 s.f. (Lot Area /8,400) x 200, but not to exceed 200 s.f. (Lot Area /8,400) x 200, but not to exceed 200 s.f. (Lot Area /8,400) x 200, but not to exceed 200 s.f. Not Applicable
    MAXIMUM FLOOR AREA BONUS FOR ATTIC (9) (Lot Area /12,000) x 300, but not to exceed 300 s.f. (Lot Area /12,000) x 300, but not to exceed 300 s.f. (Lot Area /12,000) x 300, but not to exceed 300 s.f. (Lot Area /12,000) x 300, but not to exceed 300 s.f. Not Applicable

     

    NOTES:

    (1)

    See Section 30-8.3.(a) for more height information.

    (2)

    First floor height measured from calculated grade to top of finished first floor.

    (3)

    See Section 30-2.5.(a)(2)(B) regarding when the rear lot line is the ordinary high water mark.

    (4)

    See Section 30-8.3.(d) for additional setback requirements.

    (5)

    Lot coverage and floor area bonuses apply only to single-family dwellings.

    (6)

    See Section 30-2.5.(g) for more information about the garage bonus.

    (7)

    See Section 30-13.4.(i)(1) for more information about garage requirements.

    (8)

    The front porch bonuses only apply to front porches in accordance with Section 30-2.5.(h).

    (9)

    The attic floor area bonus applies to the space above the second floor and below the roof rafters; see also Section 30-2.5.(i).

    (10)

    See Section 30-12.3.(i) and Section 30-8.3.(b) for setbacks applicable to townhouse/stacked flat dwellings.

    (11)

    For all other uses, each side yard shall be no less than twelve (12) feet. For all other uses on a corner lot, the side yard abutting the street shall be no less than thirty percent (30%) of the lot width or twenty-five (25) feet, whichever is less, but in no event less than fifteen (15) feet.

    VILLAGE OF WILMETTE, ILLINOIS

     TABLE 8-3: R1 SUB-DISTRICT RESIDENTIAL ZONING DISTRICTS BULK AND YARD REGULATIONS
    DISTRICTS
    R1-A R1-B R1-C R1-D
    LOT AND HEIGHT
    REGULATIONS
    MINIMUM LOT AREA 8,400 s.f. 6,000 s.f. 6,000 s.f. 8,400 s.f.
    MINIMUM LOT WIDTH 60' 40' 50' 50'
    MAXIMUM BUILDING HEIGHT (1) Lesser of 35' or 2.5 stories Lesser of 30' or 2.5 stories Lesser of 30' or 2.5 stories Lesser of 35' or 2.5 stories
    MAXIMUM FIRST FLOOR HEIGHT EXISTING (2) SF Dwelling built on or before March 5, 1990: max of 5'
    SF Dwelling built after March 5, 1990: max of 3'     		SF Dwelling built on or before March 5, 1990: max of 5'
    SF Dwelling built after March 5, 1990: max of 3'     		SF Dwelling built on or before July 1, 2003: max of 4'
    SF Dwelling built after July 1, 2003: max of 3'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'
    MINIMUM YARD
    REGULATIONS
    FRONT YARD Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard
    INTERIOR SIDE YARD SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 4'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'
    COMBINED SIDE YARD Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 10' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5'
    SIDE YARD ADJOINING A STREET SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 12' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'
    REAR YARD SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'
    MAXIMUM AREA AND COVERAGE
    REGULATIONS (3)
    MAXIMUM LOT
    COVERAGE     		See 30-8.3.(d)(2)(A) See 30-8.3.(d)(1)(A) See 30-8.3.(d)(1)(A) See 30-8.3.(d)(2)(A)
    MAXIMUM LOT
    COVERAGE BONUS
    FOR GARAGE     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.
    MAXIMUM LOT
    COVERAGE BONUS
    FOR FRONT PORCH     		Not Applicable 100 s.f. 100 s.f. Not Applicable
    MAXIMUM FLOOR AREA SF Dwelling:See: 20-8.3.(d)(2)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling:See: 20-8.3.(d)(1)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling:See: 20-8.3.(d)(1)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling:See: 20-8.3.(d)(2)(B)
    All Other Uses: (0.7 x Lot Area)
    MAXIMUM FLOOR AREA BONUS FOR GARAGE (4) (5) 440 s.f. 440 s.f. 440 s.f. 440 s.f.
    MAXIMUM FLOOR AREA BONUS FOR FRONT PORCH (6) (Lot Area /8,400) x 200, not to exceed 200 s.f. (Lot Area /8,400) x 100, not to exceed 100 s.f. (Lot Area /8,400) x 100, not to exceed 100 s.f. (Lot Area /8,400) x 200, not to exceed 200 s.f.
    MAXIMUM FLOOR AREA BONUS FOR ATTIC (7) (Lot Area /12,000) x 300, not to exceed 300 s.f. Not Applicable Not Applicable (Lot Area /12,000) x 300, not to exceed 300 s.f.

     

    NOTES:

    (1)

    See Section 30-8.3.(a) for more height information.

    (2)

    First floor height measured from calculated grade to top of finished first floor.

    (3)

    Lot coverage and floor area bonuses apply only to single-family dwellings.

    (4)

    See Section 30-2.5.(g) for more information about the garage bonus.

    (5)

    See Section 30-13.4.(i)(1) for more information about garage requirements.

    (6)

    The front porch bonuses only apply to front porches in accordance with Section 30-2.5.(h).

    (7)

    The attic floor area bonus applies to the space above the second floor and below the roof rafters; see also Section 30-2.5.(i).

    VILLAGE OF WILMETTE, ILLINOIS

    TABLE 8-3: R1 SUB-DISTRICT RESIDENTIAL ZONING DISTRICTS BULK AND YARD REGULATIONS
    DISTRICTS
    R1-E R1-F R1-G R1-H R1-I
    LOT AND HEIGHT
    REGULATIONS
    MINIMUM LOT AREA 6,000 s.f. 8,400 s.f. 8,400 s.f. 7,500 s.f. 5,000 s.f.
    MINIMUM LOT WIDTH 40' 50' 60' 50' 40'
    MAXIMUM BUILDING HEIGHT (1) Lesser of 30' or 2.5 stories Lesser of 30' or 2.5 stories Lesser of 35' or 2.5 stories Lesser of 35' or 2.5 stories Lesser of 35' or 2.5 stories
    MAXIMUM FIRST FLOOR HEIGHT EXISTING (2) SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 4'
    SF Dwelling built after July 1, 2003: max of 3'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'     		SF Dwelling built on or before July 1, 2003: max of 5'
    SF Dwelling built after July 1, 2003: max of 4'
    MINIMUM YARD
    REGULATIONS
    FRONT YARD Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 25' or Established Front Yard Greater of 18' or Established Front Yard
    INTERIOR SIDE YARD SF Dwelling: Greater of 10% of lot width or 3'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 5'
    All Other Uses: 20'     		SF Dwelling: Greater of 10% of lot width or 4'
    All Other Uses: 20'
    COMBINED SIDE YARD Greater of 25% of lot width or 7.5' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 12.5' Greater of 25% of lot width or 10'
    SIDE YARD ADJOINING A STREET SF Dwelling: 30% of lot width, min. of 9' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 15' to a max. of 25'
    All Other Uses: 20'     		SF Dwelling: 30% of lot width, min. of 12' to a max. of 25'
    All Other Uses: 20'
    REAR YARD SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'     		SF Dwelling: 20% of lot depth, min. of 25' to a max. of 40'
    All Other Uses: 40'
    MAXIMUM AREA AND COVERAGE
    REGULATIONS (3)
    MAXIMUM LOT
    COVERAGE     		See 30-8.3.(d)(1)(A) See 30-8.3.(d)(1)(A) See 30-8.3.(d)(2)(A) See 30-8.3.(d)(2)(A) See 30-8.3.(d)(1)(A)
    MAXIMUM LOT
    COVERAGE BONUS
    FOR GARAGE     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.
    MAXIMUM LOT COVERAGE BONUS FOR FRONT PORCH 100 s.f. 100 s.f. Not Applicable Not Applicable 100 s.f.
    MAXIMUM FLOOR AREA SF Dwelling: See 30-8.3.(d)(1)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling: See 30-8.3.(d)(1)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling: See 30-8.3.(d)(2)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling: See 30-8.3.(d)(2)(B)
    All Other Uses: (0.7 x Lot Area)     		SF Dwelling: See 30-8.3.(d)(1)(B)
    All Other Uses: (0.7 x Lot Area)
    MAXIMUM FLOOR AREA BONUS FOR GARAGE (4) (5) 440 s.f. 440 s.f. 440 s.f. 440 s.f. 440 s.f.
    MAXIMUM FLOOR AREA BONUS FOR FRONT PORCH (6) (Lot Area /8,400) x 200, not to exceed 200 s.f. (Lot Area /8,400) x 100, not to exceed 100 s.f. (Lot Area /8,400) x 300, not to exceed 300 s.f. (Lot Area /8,400) x 300, not to exceed 300 s.f. (Lot Area /8,400) x 200, not to exceed 200 s.f.
    MAXIMUM FLOOR AREA BONUS FOR ATTIC (7) Not Applicable Not Applicable (Lot Area /12,000) x 400, not to exceed 400 s.f. (Lot Area /12,000) x 400, not to exceed 400 s.f. Not Applicable

     

    NOTES:

    (1)

    See Section 30-8.3.(a) for more height information.

    (2)

    First floor height measured from calculated grade to top of finished first floor.

    (3)

    Lot coverage and floor area bonuses apply only to single-family dwellings.

    (4)

    See Section 30-2.5.(g) for more information about the garage bonus.

    (5)

    See Section 30-13.4.(i)(1) for more information about garage requirements.

    (6)

    The front porch bonuses only apply to front porches in accordance with Section 30-2.5.(h).

    (7)

    The attic floor area bonus applies to the space above the second floor and below the roof rafters; see also Section 30-2.5.(i).

    (4)

    Applicability of Contextual Bulk Regulations. For single-family dwellings, if the average height of all homes on either side and within one hundred (100) feet of the subject property is more than thirty (30) feet, the applicant may choose to apply the lot coverage and floor area formulas contained in Table 8-4: Contextual Bulk Regulations. If the mean average height of these homes is less than or equal to thirty (30) feet, the applicant may choose to apply the lot coverage and floor area formulas contained in Table 8-4.

    VILLAGE OF WILMETTE, ILLINOIS

    TABLE 8-4: CONTEXTUAL BULK REGULATIONS
    AVERAGE HEIGHT
    30' OR LESS     		AVERAGE HEIGHT
    GREATER THAN 30'
    MAXIMUM BUILDING HEIGHT (1) Lesser of 30' or 2.5 stories Lesser of 35' or 2.5 stories
    MAXIMUM LOT COVERAGE See 30-8.3.(d)(1)(A) See 30-8.3.(d)(2)(A)
    MAXIMUM LOT COVERAGE BONUS FOR
    GARAGE     		Lot size less than 8,400 s.f.: 200 s.f.
    Lot size 8,400 s.f. or greater: 400 s.f.     		SF Dwelling built on or before March 3, 1990: 200 s.f.
    SF Dwelling built after March 3, 1990: 0 s.f.
    MAXIMUM LOT COVERAGE BONUS FOR FRONT PORCH 100 s.f. Not Applicable
    MAXIMUM FLOOR AREA See 30-8.3.(d)(1)(B) See 30-8.3.(d)(2)(B)
    MAXIMUM FLOOR AREA BONUS FOR GARAGE AND SHED (2) (3) 440 s.f. 440 s.f.
    MAXIMUM FLOOR AREA BONUS FOR FRONT PORCH (4) (Lot Area /8,400) x 100, but not to exceed 100 s.f. (Lot Area /8,400) x 200, but not to exceed 200 s.f.
    MAXIMUM FLOOR AREA BONUS FOR ATTIC (5) Not Applicable (Lot Area /12,000) x 300, but not to exceed 300 s.f.

     

    NOTES:

    (1)

    See Section 30-8.3.(a) for more height information.

    (2)

    See Section 30-2.5.(g) for more information about the garage bonus.

    (3)

    See Section 30-13.4.(i)(1) for more information about garage requirements.

    (4)

    The front porch bonuses only apply to front porches in accordance with Section 30-2.5.(h).

    (5)

    The attic floor area bonus applies to the space above the second floor and below the roof rafters; see also Section 30-2.5.(i).

    (e)

    Impervious Surface Limits. In no event shall there be more impervious surface coverage upon a lot than given in Table 8-5: R, R1, R2, R3 and R4 Residential Zoning Districts Impervious Surface Coverage Requirements, except for the following conditions:

    (1)

    Properties improved with two-unit or townhouse/stacked flat dwellings located in the R2 district may cover up to sixty percent (60%) of the required rear yard with a detached garage.

    (2)

    Properties located along Lake Michigan may cover up to seventy-five percent (75%) of the required rear yard to accommodate the installation of a lake shoreline erosion control system necessary, as approved by the Illinois Department of Transportation or other designated body, to protect the integrity of the shoreline.

    VILLAGE OF WILMETTE, ILLINOIS

    TABLE 8-5: R, R1, R2, R3 AND R4 RESIDENTIAL ZONING DISTRICTS IMPERVIOUS SURFACE COVERAGE REQUIREMENTS
    R R1 R2 R3 R4
    FRONT YARD MAXIMUM COVERAGE (4) 30% 30% 30% 30% 30%
    COMBINED SIDE YARD MAXIMUM COVERAGE (4) 60% 60% 60% 60% 60%
    SIDE YARD ADJOINING A STREET MAXIMUM COVERAGE (1) (4) 30% 30% 30% 30% 30%
    REAR YARD MAXIMUM COVERAGE 60% 60% 60% 60% 60%
    REAR YARD STRUCTURE COVERAGE (2) 35% 35% 35% 35% 35%
    REAR YARD PAVEMENT COVERAGE (3) (4) 30% 30% 30% 30% 30%

     

    NOTES:

    (1)

    For the purpose of this section, the side yard adjoining a street shall end at the rear yard setback line, not the rear lot line.

    (2)

    Including but not limited to garages, sheds, playhouses, cabanas, sport courts, swimming pools, and similar structures.

    (3)

    Including but not limited to driveways, aprons, sidewalks, patios, decks, parking pads, and similar at-grade structures.

    (4)

    For single-family and two-unit dwellings, the maximum amount of coverage may be increased by ten percent (10%) of the allowable square footage of impervious surface coverage when all such flat surfaces in the yard are non-mortared pavers or a similar pervious surface over a non-compacted base.

(Code 1993, § 20-8.3; Ord. No. 2014-O-65, 11-11-2014; Ord. No. 2015-O-13, 4-14-2015; Ord. No. 2016-O-11, 4-1216; Ord. No. 2017-O-59, 10-10-2017)