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.
See “Auxiliary 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
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Table 8-301: Detached and Semi-Detached Residential Districts - Permitted and Conditional Uses |
|
Uses |
Districts |
Use Standards |
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R-1A |
R-1B |
R-1C |
R-1D |
R-1E |
R-1 |
R-2 |
R-3 |
R-4 |
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Residential |
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. . . |
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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 |
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. . . . |
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Table 8-401: Detached and Semi-Detached Residential Districts - Bulk and Yard Regulations |
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Categories |
Specifications (Per District) |
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R-1A |
R-1B |
R-1C |
R-1D |
R-1E |
R-1 |
R-2 |
R-3 |
R-4 |
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Minimum Lot Area |
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Community ... Open-Space Garden or Farm |
2 acres |
None |
None |
None |
None |
None |
None |
None |
None |
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Dwelling: Auxiliary dwelling unit |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts 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. |
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. . . |
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Minimum Lot Width |
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Dwelling: Auxiliary dwelling unit |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
|
Dwelling: Semi-Detached |
100 feet |
75 feet |
75 feet |
60 feet |
60 feet |
50 feet |
30 feet |
45 feet |
30 feet |
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. . . |
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Maximum Building Height |
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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 |
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Maximum Lot Coverage |
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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% |
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Maximum Impervious Surface |
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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% |
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. . . . {No Changes to Other Categories or to Any Footnotes} |
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Table 9-301: Rowhouse and Multi-Family Residential Districts - Permitted and Conditional Uses |
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Uses |
Districts |
Use Standards |
|
Residential |
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|
|
|
|
|
|
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 |
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. . . . |
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Table 9-401: Rowhouse and Multi-Family Residential Districts - Bulk and Yard Regulations |
|
Categories |
Specifications (Per District) |
|
Minimum Lot Area |
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|
|
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|
|
Community ... Open-Space Garden or Farm |
None |
None |
None |
None |
None |
None |
|
Dwelling: Auxiliary Dwelling Unit |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts of Principal Structure |
In Accord w/ Req’ts 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. |
|
. . . |
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Maximum Bldg Height |
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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 |
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. . . |
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Maximum Lot Coverage |
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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% |
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. . . |
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Maximum Impervious Surface |
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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% |
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. . . |
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. . . . {No Changes to Other Categories or to Any Footnotes} |
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________________________
. . .
4 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%.
. . . .
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Table 16-406: Required Off-Street Parking |
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Uses |
Parking Spaces Required |
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. . . |
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Dwelling: All unless otherwise specified |
1 per dwelling unit |
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Dwelling: Auxiliary dwelling unit |
None |
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Dwelling: Live-Work |
1 per dwelling unit |
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Dwelling: Multi-Family - Age-Restricted Housing |
1 per 2 dwelling units |
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. . . . |
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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.