§ 158.074  R-10,000 RESIDENCE DISTRICT.
   (A)   Purpose.  The purpose of the R-10,000 District is to provide for smaller lot sizes (10,000 square feet minimum) for single- and two-family dwellings, based on the use of public water and sewerage facilities. This would essentially mean more dwellings per acre (approximately three to four families) and less open area than in the R-20,000 District.
   (B)   Applicability.  The following regulations and applicable regulations contained in other sections shall apply in the R-10,000 District.
   (C)   Principal permitted uses.  Principal permitted uses shall be as follows:
      (1)   Any use or structure permitted and as regulated as a principal permitted use in the R-20,000 District, except as hereinafter modified;
      (2)   Conversion of a building existing prior to August 17, 1965, to accommodate two families; provided that all applicable building construction and Maryland Department of Health and Mental Hygiene and MDE Codes are complied with; and
      (3)   Planned unit development, subject to the provisions of § 155.093.
   (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-20,000 District, except as hereinafter modified;
      (2)   Boarding or rooming houses or tourist homes;
      (3)   Clubs, fraternal organizations, lodges and similar organizations, provided that they are not conducted for profit and obtain and maintain appropriate designation as nonprofit entities exempt from federal income tax requirements pursuant to federal tax law regulating the conduct of such businesses; subject to site plan approval under § 155.059;
      (4)   Community centers and swimming pools associated therewith; and
      (5)   Two-family dwellings.
   (E)   Accessory uses.  Accessory uses shall be as follows:
      (1)   Accessory buildings and uses customarily incidental to any principal permitted use or authorized conditional use, including a mobile home used in connection with an interim agricultural use, subject to the provisions of § 158.150(B);
      (2)   Keeping of no more than four roomers or boarders by a resident owner;
      (3)   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;
      (4)   Family day care, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G);
      (5)   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;
      (6)   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 division (C)(2) above 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;
      (7)   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);
      (8)   Home occupation, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G);
      (9)   Lawn care and maintenance service, subject to Zoning Administrator approval after a public hearing in accordance with § 158.130(G); and
      (10)   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.  Height regulations shall be the same as specified in the R-20,000 District.
   (G)   Bulk requirements.  The following minimum requirements shall be observed, subject to the modified requirements in § 158.130:
 
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)
Boarding or tourist homes
20,000 sq. ft.
100
-
35
20
40
Clubs, fraternal organizations
20,000 sq. ft.
100
-
35
20
40
Planned unit development
Subject to the provisions of § 155.093
Semi-detached
7,500 sq. ft.
37.5
7,500
35
12 (one side only)
40
Single-family dwellings
10,000 sq. ft.
70
10,000
35
12
40
Two-family dwellings
15,000 sq. ft.
75
7,500
35
12
40
Other principal permitted or conditional uses
Same as specified in R-20,000 District
 
(Ord. 2019-06, passed 12-12-2019)