The RE-2, RE-2c, RE-1, R-200, R-90, R-60, R-40, TLD, TMD, THD, R-30, R-20, and R-10 zone allow development under the standard method. Site plan approval may be required under Section 7.3.4.A.8.
A. Established Building Line
1. The established building line applies only to new buildings in the R-200, R-90, or R-60 zones, and new detached house buildings in the R-40 zone and does not apply to an alteration or addition to an existing building.
2. The 2 or more detached houses considered in determining the established building line must be:
a. within 300 feet of the side lot line of the proposed construction site measured along the street frontage;
b. along the same side of the street;
c. between intersecting streets or to the point where the street terminates;
d. in existence or approved by a building permit when the building permit application on the subject property is filed;
e. legally constructed; and
f. not on a through lot if the building on the through lot fronts on a street other than the street fronting the subject property.
3. The established building line applies if at least 2 buildings described in Section 4.4.1.A.2 and more than 50% of the buildings described in Section 4.4.1.A.2 are set back more than the minimum required by the zone. The established building line is equal to the average front setback of all the buildings described in Section 4.4.1.A.2, excluding those buildings:
a. in the R-200 zone that are or were ever served by well or septic;
b. on the subject property;
c. in a different zone than that of the subject property;
d. on a through lot that fronts on a street different than that of the subject property;
e. located on any pipestem, wedge-shaped, or flag-shaped lot; or
f. approved by permit for demolition, except if a building permit was also approved with the same setback.
4. If the established building line applies, the applicant may choose to use as the front setback:
a. the established building line;
b. the average front setback of the 2 abutting lots; or
c. the front setback of the existing detached house that was established before demolition, excluding any approved variance, if the existing building meets the minimum front setback of the zone.
5. All calculations must be based on a survey that is signed and sealed by a Maryland licensed engineer or surveyor.
6. If the established building line does not apply, the building must satisfy the minimum front setback of the zone.
7. A corner lot has 2 front setbacks and must satisfy established building line standards on both streets. At the option of the applicant, a corner lot may use front setbacks of the abutting buildings on both sides of the corner lot.
B. Residential Infill Compatibility
1. Applicability
The standards in Section 4.4.1.B apply to the R-200, R-90, R-60, and R-40 zones where:
a. the lot was created:
i. by a plat recorded before January 1, 1978; or
ii. by a plat of resubdivision that created fewer than 6 lots from a lot previously created by a plat recorded before January 1, 1978;
b. the lot is less than 25,000 square feet in area; and
c. the construction proposed is:
i. a new detached house;
ii. the demolition and reconstruction of more than 50% of the floor area of an existing detached house; or
iii. the addition of more than 50% of the floor area of the detached house.
2. Coverage
The maximum area that may be covered by any building, including any ac-cessory building and any weatherproofed floor area above a porch, but not including any bay window measuring 10 feet in width or less and 3 feet in depth or less, chimney, porch, or up to 240 square feet of a detached garage, if the garage is less than 350 square feet of floor area and less than 20 feet in height, must vary with the lot area as follows:
Lot Area | Maximum Coverage |
Lot area less than 6,000 SF: | 30% of lot area |
Lot area equal to or greater than 6,000 SF but less than 16,000 SF: | 30%, less .001% per square foot of lot area exceeding 6,000 SF |
Lot area equal to or greater than 16,000 SF: | 20% of the lot area |
(Legislative History: Ord. No. 18-08, § 9.)