§ 158.075  R-7,500 RESIDENCE DISTRICT.
   (A)   Purpose.  The purpose of the R-7,500 Residence District is to enable in the urban areas of the county, where both public water and sewerage facilities are available, a greater number of dwellings per acre. The minimum lot size for single-family dwellings is 7,500 square feet. This district also enables the use of multi-family structures.
   (B)   Applicability.  The following regulations and the applicable regulations contained in other sections shall apply in the R-7,500 Residence District.
   (C)   Principal permitted uses.  Principal permitted uses shall be as follows:
      (1)   Single-family and two-family dwelling;
      (2)   Multi-family dwellings, but only in a planned unit development (“PUD”);
      (3)   Boarding or lodging houses;
      (4)   PUD, subject to § 155.093; and
      (5)   Any use or structure permitted and as regulated as a principal permitted use in the R-10,000 District.
   (D)   Conditional uses requiring BZA authorization.  Conditional uses requiring BZA authorization shall be as follows:
      (1)   Any conditional use permitted and as regulated in the R-10,000 District; and
      (2)   Nursing homes, retirement homes, continuing care retirement communities and assisted-living facilities, subject to prior approval of the site development plan and exterior design of the structure by the Commission.
   (E)   Accessory uses.  Accessory uses shall be as follows:
      (1)   Accessory buildings and uses customarily incidental to any principal use or authorized conditional use;
      (2)   Outdoor parking of commercial vehicles and outdoor storage of unlicensed vehicles as accessory use to residential use as defined and provided in §§ 158.056 and 158.057;
      (3)   Family day care, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G);
      (4)   Attached accessory dwelling units which are subject to the following:
         (a)   An attached accessory dwelling must have direct access from the outside;
         (b)   Only one attached accessory dwelling is permitted on any principal dwelling unit;
         (c)   The property owner must occupy either the principal dwelling unit or the attached accessory dwelling unit on the property;
         (d)   The maximum size of an attached accessory dwelling shall be 800 square feet of the livable floor area or one-third of the total livable floor area of the principal dwelling unit, whichever is greater;
         (e)   The attached accessory dwelling unit shall have no more than two bedrooms;
         (f)   The attached accessory dwelling unit must meet all applicable building construction and Maryland Department of Health and Mental Hygiene and MDE Codes;
         (g)   Two additional off street parking spaces must be provided for the attached accessory dwelling unit; and
         (h)   Only one accessory dwelling unit (attached or detached) shall be permitted on a lot;
      (5)   Detached accessory dwelling units, provided that the lot or parcel is eligible to be subdivided to separate the detached accessory dwelling and which are subject to the following:
         (a)   Only one attached or detached accessory dwelling unit is permitted on any lot or parcel. Buildings converted in accordance with § 158.074(C)(2) shall be considered detached accessory dwelling units;
         (b)   The property owner must occupy either the principal dwelling unit or the detached dwelling unit on the lot or parcel;
         (c)   The detached accessory dwelling unit must meet all applicable building construction and Maryland Department of Health and Mental Hygiene and MDE Codes;
         (d)   Two off street parking spaces must be provided for the detached accessory dwelling unit; and
         (e)   Detached accessory dwelling units shall not be subject to any size limits;
      (6)   Within a dwelling, the professional office of a physician, insurance agent, realtor or other profession determined by the Zoning Administrator to be similar in use and characteristics, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G);
      (7)   Home occupation, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G);
      (8)   Lawn care and maintenance service, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G); and
      (9)   The above or below ground storage of not greater than 2,000 gallons, in aggregate capacity of petroleum products which is not sold at retail or wholesale, and subject to Chapter 170 of the Carroll County Code and all applicable MDE and NFPA regulations.
   (F)   Height regulations.  No principal structure shall exceed three stories or 40 feet in height and no accessory structure shall exceed one and one-half stories or 25 feet, except as provided in § 155.093 and § 158.130(E).
   (G)   Bulk requirements.  The following minimum requirements shall be observed, subject to the modified requirements in § 158.130:
      (1)   Dwellings, PUDs, and the like.
 
Use
Lot Area
Lot Width (feet)
Lot Area per Family (sq. ft.)
Front Yard Depth (feet)
Side Yard (Width Each Side Yard) (feet)
Rear Yard Depth (feet)
One-family - 1 and 1-1/2 stories
7,500 sq. ft.
60
7,500
25
8
35
One-family - 2 and 2-1/2 stories
7,500 sq. ft.
60
7,500
25
10
40
PUD
10 acres
Subject to provisions of § 155.093
Semi-detached dwelling
5,000 sq. ft.
37.5
5,000
25
12 (one side only)
40
Two-family - 1 and 1-1/2 stories
10,000 sq. ft.
75
5,000
25
10
40
Two-family - 2 and 2-1/2 stories
10,000 sq. ft.
75
5,000
25
12
40
Other principal permitted or conditional uses
20,000 sq. ft.
100
-
25
20
40
 
      (2)   Nursing homes and retirement homes.
 
Use
Lot Area
Lot Width (feet)
Density
Front Yard Depth (feet)
Side Yard (width each side yard) (feet)
Rear Yard Depth (feet)
Nursing homes
45,000 sq. ft.
150
1 bed/3,000 sq. ft.1
502
402
502
Retirement homes, multi-family units
45,000 sq. ft.
150
As determined by the Planning Commission but not exceeding 1 DU/3,000 sq. ft.1
502
402
502
Retirement homes, single family and town homes
45,000 sq. ft.
150
As determined by the  Planning Commission but not exceeding 1 DU/7,500 sq. ft.1
502
402
502
1  For those areas in excess of 180,000 square feet, the determination of the density factor will be made by the Planning Commission and the Carroll County Health Department upon the review and approval of the site development plan.
2  As lot area increases above the minimum of 45,000 square feet, increased provision for front, side and rear yards shall be determined by the Planning Commission and the Carroll County Health Department based on the site development plan.                  
 
(Ord. 2019-06, passed 12-12-2019)