Gwinnett County |
Code of Ordinances |
Appendix A. UNIFIED DEVELOPMENT ORDINANCE |
Chapter 320. Plan and Plat Guidelines |
§ 320-140. Structure Location Plans.
320-140.1 Lot Design, House Location Plan, Residential Drainage Plan, and Residential Drainage Study. Lots should be designed generally such that they are no more than four times as deep as they are wide at the building setback line, unless excepted by the Director.
320-140.2 The Department may require notation that a House Location Plan (HLP) is required to be approved prior to issuance of a Building Permit on certain lots when particular care in locating the house or other improvements will be necessary. Such lots include, but are not limited to:
A.
A lot which presents particular or unusual difficulties for a builder to meet minimum required building setbacks;
B.
A lot upon which is located an easement of unusual configuration;
C.
A lot containing floodplain but upon which no fill or other encroachment into the floodplain is anticipated at the time the Final Plat is filed;
D.
A lot upon which is located all or a part of a stormwater detention facility;
E.
A lot upon which is located a buffer which was required by Title 2, and Title 3 of this UDO or as a condition of zoning approval;
F.
All duplex lots;
G.
All lots within, or partially within, the Chattahoochee River Corridor, or containing a River Corridor Tributary Buffer Zone.
320-140.3 The Department may require notation that a Residential Drainage Plan (RDP) is required to be approved prior to issuance of a Building Permit on certain lots where additional (site specific) engineering will be necessary to properly grade the lot or locate the building or other improvements. Such lots include, but are not limited to:
A.
A lot containing floodplain where fill or other encroachment into the floodplain is planned or reasonably expected;
B.
A lot containing severe topographic features intersecting the building site;
C.
A lot containing a drainage easement with a pipe discharge or other facilities, or flow characteristics which may adversely affect the location of a building or other site improvements.
320-140.4 The Department may require notation that a Residential Drainage Study (RDS) is required to be approved prior to issuance of a Building Permit on certain lots where particular attention to site grading will be necessary, but formal engineering is not needed. Such an RDS is conducted in the field where the effect of the site grading must be accomplished with adequate care so as not to create a drainage problem on neighboring property.
320-140.5 House Location Plan.
A.
Size and description. House Location Plans shall be drawn to scale and may be shown on a certified boundary survey of the lot or any other drawing showing the information required below. The Department may accept a House Location Plan drawn to the same scale as shown on the Final Plat where sufficient detail can be shown to support an adequate review and approval. The House Location Plan may be combined with a Residential Drainage Plan (RDP) if an RDP is required for the lot.
B.
May be drawn by an individual. It is not the intent of the Department that the House Location Plan be prepared by an authorized registered professional but may be done by the individual proposing the improvements on the lot. It is the intent, however, to receive a drawing with sufficient readability and accuracy to ensure that the proposed improvements will be constructed on the lot in conformance with the requirements of this UDO, or other regulations as applicable
C.
List of what is to be shown. House Location Plans shall show the following as applicable:
1.
Boundary lines of the lot, giving distances to the nearest one-tenth of a foot and bearings to the nearest minute.
2.
Location and names of all abutting streets or other rights-of-way.
3.
Minimum required front, side and rear building setback lines with dimensions, and notation of the existing zoning on the property.
4.
All easements, public water, sewer or storm drainage facilities traversing or located on the property, septic tank, and septic tank drain field.
5.
Subdivision name, lot designation, land lot, and district.
6.
North arrow and scale.
7.
Limit of the 100-year floodplain and any applicable buffers or special building setback lines.
8.
If the lot is located within the Chattahoochee River Corridor, the location of each area by vulnerability category and calculations of impervious surface and clearance by category, or other such data in accordance with the Certificate for the subdivision approved under the Metropolitan River Protection Act. Show also any buffer or setback required by the Metropolitan River Protection Act.
9.
All other applicable requirements of Title 2 of this UDO or conditions of zoning approval.
10.
Name, address, and telephone number of the owner and the person who prepared the HLP.
D.
Certificate of Occupancy. If a lot is located in the Chattahoochee River Corridor, a Certificate of Occupancy shall not be issued for the structure or other improvements until conformance to the provisions or other requirements of the House Location Plan have been field verified by a survey prepared by a registered land surveyor and submitted to the Department.
320-140.6 Residential Drainage Plan (RDP).
A.
Certified boundary survey required. Prior to issuance of a Building Permit, Residential Drainage Plans shall be drawn to scale on a certified boundary survey of the lot prepared by a registered land surveyor and be approved by the Stormwater Plan Review Section of the Department. The Residential Drainage Plan may be combined with a House Location Plan (HLP) if an HLP is required for the lot. The requirements contained herein shall also apply to lots which formerly required SPED (Site Plan - Engineering Division) approval.
B.
List of what is required to be shown. Residential Drainage Plans shall show the following as applicable:
1.
Boundary lines of the lot, giving distances to the nearest one-tenth of a foot and bearings to the nearest minute.
2.
Location and names of all abutting streets or other rights-of-way.
3.
The outline of all buildings, driveways, parking areas, swimming pools, recreational courts, patios, accessory structures and other improvements existing or proposed on the property, and dimensions of buildings and distances between all structures and the nearest property lines as required to locate the major improvements on the lot.
4.
All easements, public water or sewer facilities traversing or located on the property, and septic tank drain field.
5.
Subdivision name, lot designation, land lot, and district.
6.
North arrow and scale.
7.
Contour lines based on sea level datum. These shall be drawn at intervals of not more than two feet, and shall be based on a field survey. Proposed grading of the lot shall be shown along with the finished floor elevation of the lowest habitable floor of the house.
8.
Storm water features, including swales, pipes, storm water detention and other structures, all drainage easements (DE), and directions of flow.
9.
Floodplain features, including the limits of the flood hazard area, 100-year flood high water elevation, origin of the floodplain data, and any proposed modifications to the floodplain limits.
10.
Sedimentation and erosion control measures to be taken or placed on the lot during construction.
11.
Names, address, and telephone number of the owner and person who prepared the RDP.
12.
Seal, registration number, and date of expiration of the authorized registered professional who prepared the drainage improvements or modifications shown on the RDP.
320-140.7 Residential Drainage Study (RDS).
A.
A Residential Drainage Study (RDS) shall be conducted by the developer's or builder's authorized registered professional prior to issuance of a Certificate of Occupancy on those lots so noted on the Final Plat. The requirements for a RDS contained herein shall also apply to lots that formerly required SSED (Site Study - Engineering Division) approval. The grading and construction of the lot shall be field verified by the developer's or builder's authorized registered professional as being in conformance with grading plans and storm water management studies approved for the subdivision. A Certificate of Occupancy shall not be issued for the structure until a written certification has been received from the developer's or the builder's authorized registered professional stating that the provisions or improvements required by the Residential Drainage Plan or as a result of the Residential Drainage Study have been field verified.
320-140.8 Certificate - Department approval. If a RDP or RDS is required because a stream or floodplain is on or adjacent to the lot, the notation on the development plans and plat shall be "RDP" or "RDS" as appropriate.
320-140.9 Swimming Pool Location Plan.
A.
A Swimming Pool Location Plan is required for residential lots in order to obtain a building permit for a swimming pool. Its purpose is to ensure that the rear yard location and accessory structure setback requirements are met and that easements are kept free of encroachments.
B.
Size and description. Swimming Pool Location Plans shall be drawn to scale and may be shown on a certified boundary survey of the lot or any other drawing showing the information required below. The Department may accept a Swimming Pool Location Plan drawn to the same scale as shown on the Final Plat where sufficient detail can be shown to support an adequate review and approval.
C.
May be drawn by an individual. It is not the intent of the Department that the House Location Plan be prepared by an authorized registered professional but may be done by the individual proposing the pool on the lot. It is the intent, however, to receive a drawing with sufficient readability and accuracy to ensure that the proposed improvements will be constructed on the lot in conformance with the requirements of this UDO, or other regulations as applicable.
D.
List of what is required to be shown:
1.
Boundary lines of the lot with distances and bearings.
2.
Location and names of all abutting streets or other street rights-of-way.
3.
Minimum required front building setback lines with dimensions.
4.
Minimum required 5-foot accessory structure setback from side and rear property lines.
5.
Self-closing and self-latching gate equipped with a locking device.
6.
Pump, equipment structures and decking.
7.
Septic tank and drain field (if applicable).
8.
Height, type and location of required pool fencing.
9.
The approximate outline of all buildings, driveways, swimming pools, recreational courts, patios, accessory structures and other improvements, existing or proposed, on the property, and dimensions of buildings and distances between all structures and the nearest property lines.
10.
Location and dimensions of any water, sewer, drainage or other easements, storm water management facilities, septic tank, and septic tank drain field located on the lot.
11.
Subdivision name, lot, and block designation.
12.
North arrow and scale.
13.
100-year floodplain limits, any applicable stream buffers or other special building setback lines.
14.
Any other applicable requirements of the Zoning Resolution or conditions of zoning approval.