Baltimore City Council
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File #: 18-0188    Version: 0 Name: Zoning - Auxiliary Dwelling Units
Type: Ordinance Status: In Committee
File created: 2/5/2018 In control: Land Use Committee
On agenda: Final action:
Enactment #:
Title: Zoning - Auxiliary Dwelling Units For the purpose of allowing, as a conditional use requiring approval by the Board of Zoning Appeals, “auxiliary dwelling units” in certain districts; defining certain terms; imposing certain use standards; and requiring compliance with certain additional bulk and yard regulations.
Sponsors: Ryan Dorsey, Bill Henry, Kristerfer Burnett, John T. Bullock, Zeke Cohen, Robert Stokes, Sr., Shannon Sneed, Edward Reisinger, President Young, Sharon Green Middleton, Eric T. Costello, Isaac "Yitzy" Schleifer, Brandon M. Scott
Indexes: Auxiliary, Dwellings, Zoning
Attachments: 1. 18-0188~1st Reader, 2. DOT 18-0188

 

 

                     Introductory*

 

                     City of Baltimore

                     Council Bill          

                                                                                                                                                           

Introduced by:  Councilmember Dorsey                                                                                           

 

                     A Bill Entitled

 

An Ordinance concerning

title

Zoning - Auxiliary Dwelling Units

For the purpose of allowing, as a conditional use requiring approval by the Board of Zoning Appeals, “auxiliary dwelling units” in certain districts; defining certain terms; imposing certain use standards; and requiring compliance with certain additional bulk and yard regulations.

body

 

By adding

Article 32 - Zoning

Sections 1-302(w) and 14-301.2

Baltimore City Code

(Edition 2000)

 

By redesignating

Article 32 - Zoning

Section 1-302(w)

   to be

Section 1-302(x)

Baltimore City Code

(Edition 2000)

 

By repealing and reordaining, with amendments

Article 32 - Zoning

Tables 8-301, 8-401, 9-301, 9-401, and 16-406

Baltimore City Code

(Edition 2000)

 

Section 1.  Be it ordained by the Mayor and City Council of Baltimore, That the Laws of Baltimore City read as follows:

 

                     Baltimore City Code

 

                     Article 32.  Zoning

 

                     Title 1.  General Provisions

 

                     Subtitle 3.  Definitions

 

§ 1-302.  “Abut” to Awning.

 

(w)  Auxiliary dwelling unit.

 

Auxiliary dwelling unit” means a detached single-family dwelling that is:

 

(1)                      located on the same lot as a principal structure; and

 

(2)                     subordinate in lot coverage and floor area to that principal structure.

 

(x) [(w)] Awning.

 

Awning means an architectural projection that:

 

(1)                     comprises a lightweight frame structure over which a covering is attached;

 

(2)                     is designed to provide weather protection, identity, or decoration; and

 

(3)                     is partially or wholly supported by the building to which it is attached.

 

§ 1-305.  “Day-care home: Adult” to “Electric substation: Outdoor”.

 

(l-1)  Dwelling: Auxiliary dwelling unit.

 

SeeAuxiliary dwelling unit”.

 

                     Title 14.  Use Standards

 

                     Subtitle 3.  Use Standards

 

§ 14-301.2.  Auxiliary dwelling units.

 

(a)  Number of ADUs on a lot.

 

More than 1 auxiliary dwelling unit may be allowed on a lot as long as, in the aggregate, the auxiliary dwelling units and the principal structure comply with the applicable bulk and yard regulations of the district in which the property is located.

 

(b)  Maximum gross floor area.

 

(1)  In general.

 

The gross floor area of an auxiliary dwelling unit may not exceed 750 square feet.

 

(2)  Measurement inclusions and exclusions.

 

This gross floor area measurement:

 

(i)                     includes garage and storage areas; but

 

(ii)                     excludes:

 

1.                     porches and decks, up to a maximum exclusion of not more than 75 square feet; and

 

2.                     areas below grade.

 

(c)  Placement in front yard prohibited.

 

An auxiliary dwelling unit may not be located in the front yard of the lot.

 

 

 

                     Zoning Tables

 

   Table 8-301:  Detached and Semi-Detached Residential Districts Permitted and Conditional Uses

 

  Uses

  Districts

 Use Standards

 

 

 R-1A

  R-1B

  R-1C

  R-1D

  R-1E

  R-1

  R-2

  R-3

  R-4

 

 Residential

 

 

 

 

 

 

 

 

 

 

 . . .

 

 

 

 

 

 

 

 

 

 

 Day-Care Home: Adult or Child

  P

  P

  P

  P

  P

  P

  P

  P

  P

 Per §14-310

 Dwelling: Auxiliary dwelling  unit

  CB

  CB

  CB

  CB

  CB

  CB

  CB

  CB

  CB

 Per §14-301.2

 . . . .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   Table 8-401:  Detached and Semi-Detached Residential Districts Bulk and Yard Regulations

 

  Categories 

  Specifications  (Per District)

 

 

  R-1A

  R-1B

  R-1C

  R-1D

  R-1E

  R-1

  R-2

  R-3

  R-4

 Minimum Lot Area

 

 

 

 

 

 

 

 

 

 Community ... Open-Space Garden or Farm

  2 acres

  None

  None

  None

  None

  None

  None

  None

  None

 Dwelling: Auxiliary dwelling  unit

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 Dwelling: Detached or Semi-Detached

  2 acres 

  1 acre

  21,780   sq.ft.

  14,520   sq.ft.

  9,000   sq.ft.

  7,300   sq.ft.

  5,000   sq.ft.

  5,000   sq.ft.

  3,000   sq.ft.

 . . .

 

 

 

 

 

 

 

 

 

 Minimum Lot Width

 

 

 

 

 

 

 

 

 

 Dwelling: Auxiliary dwelling  unit

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 Dwelling: Semi-Detached

  100 feet

  75 feet

  75 feet

  60 feet

  60 feet

  50 feet

 30 feet

  45 feet

  30 feet

 . . .

 

 

 

 

 

 

 

 

 

 Maximum Building Height

 

 

 

 

 

 

 

 

 

 Dwelling: Auxiliary dwelling  unit

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

 All Other Uses

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

 Maximum Lot Coverage

 

 

 

 

 

 

 

 

 

 Dwelling: Auxiliary dwelling  unit (together w/ principal structure)

  50%

  50%

  50%

  50%

  50%

  50%

  50%

  50%

  50%

 All Other Uses

  25%

  25%

  25%

  25%

  25%

  30%

  30%

  35%

  35%

 Maximum Impervious Surface

 

 

 

 

 

 

 

 

 

 Dwelling: Auxiliary dwelling  unit (together w/ principal structure)

  55%

  55%

  55%

  55%

  55%

  55%

  55%

  55%

  55%

 All Other Uses

 40%

  40%

  40%

  40%

  40%

  50%

  50%

  50%

  50%

 . . . .  {No Changes to Other Categories or to Any Footnotes}

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   Table 9-301:  Rowhouse and Multi-Family Residential Districts Permitted and Conditional Uses

 

  Uses

  Districts

 Use Standards

 

 

  R-5

  R-6

  R-7

  R-8

  R-9

  R-10

 

 

 Residential

 

 

 

 

 

 

 

 Day-Care Home: Adult or Child

  P

 P

 P

 P

 P

 P

 Per § 14-310

 Dwelling: Auxiliary Dwelling Unit

  CB

 CB

 CB

 CB

 CB

  CB

 Per §14-301.2

 . . . .

 

 

 

 

 

 

 

 

 

   Table 9-401:  Rowhouse and Multi-Family Residential Districts Bulk and Yard Regulations

 

  Categories 

  Specifications  (Per District)

 

 

  R-5

  R-6

  R-7

  R-8

  R-9

  R-10

 

 Minimum Lot Area

 

 

 

 

 

 

 Community ... Open-Space Garden or Farm

  None

  None

  None

  None

  None

  None

 Dwelling: Auxiliary Dwelling Unit

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 In Accord w/ Reqts of  Principal Structure

 Dwelling: Detached

 3,000 sq.ft.

 3,000 sq.ft.

 3,000 sq.ft.

 3,000 sq.ft.

 3,000 sq.ft.

 3,000 sq.ft.

 . . .

 

 

 

 

 

 

 Maximum Bldg  Height

 

 

 

 

 

 

 Dwelling: Auxiliary Dwelling Unit

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

  14 feet

 Dwelling: Detached or Semi-Detached

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

  35 feet

 . . .

 

 

 

 

 

 

 Maximum Lot Coverage

 

 

 

 

 

 

 Dwelling: Auxiliary Dwelling Unit (together w/ principal structure)

  60%

  60%

  60%

  60% or 80% 4

  60%

  80%

 Dwelling: Detached or Semi-Detached

  35%

  35%

  35%

  35%

  35%

  35%

 Dwelling: Rowhouse

  40%

  45%

  50%

  60% or 80% 4

  40%

  80%

 . . .

 

 

 

 

 

 

 Maximum Impervious Surface

 

 

 

 

 

 

 Dwelling: Auxiliary Dwelling Unit (together w/ principal structure)

  65%

  65%

  65%

  65%

  65%

  65%

 Dwelling: Detached or Semi-Detached

  60%

  60%

  60%

  60%

  60%

  60%

 . . .

 

 

 

 

 

 

 . . . .  {No Changes to Other Categories or to Any Footnotes}

 

 

 

 

 

 

 

________________________

. . .

For a lot with a depth of 80 feet or more, the maximum lot coverage is 60%.  For a lot with a depth of less than 80 feet, the maximum lot coverage is 80%.

. . . .

 

 

 

 

 

 

 

 

 

 

 

   Table 16-406:  Required Off-Street Parking

 

  Uses

  Parking Spaces Required

 . . .

 

 Dwelling: All unless otherwise specified

 1 per dwelling unit

 Dwelling: Auxiliary dwelling  unit

 None

 Dwelling: Live-Work

 1 per dwelling unit

 Dwelling: Multi-Family - Age-Restricted Housing

 1 per 2 dwelling units

 . . . .

 

 

 

 

Section 2.  And be it further ordained, That the catchlines contained in this Ordinance are not law and may not be considered to have been enacted as a part of this or any prior Ordinance.

 

Section 3.  And be it further ordained, That this Ordinance takes effect on the 30th day after the date it is enacted.