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 Horry County
 Code of Ordinances
 Chapter 18. LAND DEVELOPMENT REGULATIONS

  Chapter 18. LAND DEVELOPMENT REGULATIONS  

Article 1. APPLICABILITY
Article 2. PROCEDURES
Article 3. SUBMITTAL REQUIREMENTS
Article 4. DESIGN STANDARDS
Article 5. IMPROVEMENT STANDARDS
Article 6. SPECIAL DESIGN STANDARDS
Article 7. ACCESS MANAGEMENT
Article 8. RESERVED
Article 9. DEFINITIONS

ACKNOWLEDGMENTS

The Horry County Planning Commission would like to acknowledge the members of the Land Development Regulations Committee. These members provided invaluable assistance, ideas, insights, and guidance throughout the process undertaken to develop the attached regulations.

Land Development Regulations Committee Members
(Industry Representatives)

Larry Beasley, Beasley Land Surveying
Thomas Cecala, Wachesaw Development, Inc
Robert Castles, Castles Consulting Engineers
Mike Culler, Culler Land Surveying
Harry Dill, Hall Development
Barry Greene, Nelson Hardwick and Associates
Bill Hattoway, Engineering & Technical Services
Ken Hawk, Wilbur Smith Associates
James Hayes, Affiliated Surveyors
Jay Hood, Burroughs and Chapin
Tim Kirby, DDC Engineers
Lawrence Langdale, Chicora Development
Braxton Lewis, AB Consulting Engineers
Mike Oliver, Associated Land Surveyors
Steve Powell, Venture Engineering
Jon Taylor, EDT
Charlie Thompson, Thompson Planning Services
Terry Watson, Terry Watson Land Surveying

Planning Commission

Donald W. Helms, Chairman Tony Cox, Vice-Chairman
Bill Brown Lacy Cannon
Mitchell Flannery R. Mark Causey
R. Phil Hucks Adam Parness
J. Liston Wells

 

County Staff

Steven S. Gosnell, Division Director Infrastructure and Regulation
Danny E. Taylor, Planning Director
Janet Carter, Deputy County Attorney
Tom Garigen, Deputy Director Horry County Engineering
Patrick R. Zenner, Senior Planner
Linda Siceloff, Senior Planner
Nancy Tindall, Secretary (Planning)

TABLE OF CONTENTS

SECTION PAGE
ARTICLE ONE—APPLICABILITY ..... 949
SECTION 1: TITLE ..... 949
SECTION 2: AUTHORITY ..... 949
SECTION 3: JURISDICTION ..... 949
SECTION 4: PURPOSE ..... 949
SECTION 5: SUITABILITY OF THE LAND ..... 950
SECTION 6: RESERVED ..... 950
SECTION 7: RESERVED ..... 950
SECTION 8: DESIGN MODIFICATIONS ..... 950
SECTION 9: AMENDMENTS ..... 951
SECTION 10: VIOLATIONS AND PENALTIES ..... 951
SECTION 11: APPEALS ..... 952
SECTION 12: SEVERABILITY AND VALIDITY ..... 952
SECTION 13: CONFLICT WITH OTHER LAWS, ORDINANCES, OR REGULATIONS ..... 952
SECTION 14: DEFINITION OF LAND DEVELOPMENT ..... 952
SECTION 15: TYPES OF LAND DEVELOPMENTS ..... 953
ARTICLE TWO—PROCEDURES ..... 954
SECTION 1: GENERAL ..... 954
SECTION 2: REVIEW PROCEDURE FOR MAJOR DEVELOPMENTS ..... 954
2-1. Master Plans/Sketch Plans ..... 954
A. General ..... 954
B. Conference with staff ..... 954
2-2. Preliminary Plan ..... 955
A. Submission ..... 955
B. Staff review procedure ..... 955
C. Planning commission action on design modifications and appeals ..... 955
D. Reserved ..... 955
E. Preliminary plan approval ..... 955
E.1. Model homes or units ..... 956
E.2. Vested development rights ..... 957
F. Construction trailers placement and relocation 958
2-3. Final Plat ..... 958
A. Submission ..... 959
B. Review ..... 959
C. Circulation ..... 959
D. Authorization to record ..... 959
2-4. Major Development Revisions ..... 960
2-5. Group Developments and Developments of Regional Significance ..... 961
2-6. Manufactured Home Developments ..... 961
SECTION 3: REVIEW PROCEDURE FOR MINOR DEVELOPMENTS ..... 961
3-1. General ..... 961
3-1.1. Retrofitting existing public or private road rights-of-way ..... 961
3-1.2. Tract remainder roadway frontage ..... 962
3-2. Submissions ..... 962
3-3. Review Procedure ..... 962
3-4. Letters of Certification ..... 962
3-5. Minor Developments Lacking Adequate Public or Private Improvements ..... 963
3-6. Recording the Minor Development Plat ..... 963
3-7. Revisions to Minor Developments ..... 963
3-8. Additions to a Minor Development ..... 963
3-9. Minor Developments on Adjacent Parcels ..... 964
3-10. Streets Within Minor Developments ..... 965
SECTION 4: REVIEW PROCEDURE FOR PLATTING ACTIONS ..... 966
4-1. General ..... 966
4-1.1. Retrofitting existing public or private road rights-of-way ..... 967
4-1.2. Substandard parcels created by default ..... 967
4-1.3. Proposed improvements and general purpose easements ..... 967
4-2. Reserved ..... 967
4-3. Boundary Surveys (Original Surveys) ..... 967
4-4. Estate Plats and Family Transfers ..... 968
4-5. Court Orders ..... 968
4-6. Combination of Lots ..... 968
4-7. Lot Reconfigurations ..... 968
4-8. Mortgage Plats, Lease Parcels, Land Contract Sales Parcels ..... 969
4-9. Easements ..... 969
4-10. As-Built or Record Plans ..... 969
4-11. Conceptual Phasing Plats for Group Developments ..... 969
4-12. Closing/As builts Plats for Group Developments ..... 970
4-13. Burial/Cemetery Lots ..... 970
4-14. Plats Prior to 1984 ..... 971
4-15. Easements to Existing Landlocked Parcels ..... 971
SECTION 5: REVEIW PROCEDURE FOR LEASE PARCEL DEVELOPMENTS ..... 971
5-1. General ..... 971
5-2. Submission ..... 972
SECTION 6: PROCEDURE FOR E-PLAT ONLINE PLAN SUBMITTAL ..... 972
6-1. General ..... 972
6-2. Preliminary Submission ..... 972
6-3. Final Submission ..... 973
ARTICLE THREE—SUBMITTAL REQUIREMENTS ..... 973
SECTION 1: MASTER/SKETCH PLAN ..... 973
SECTION 2: PRELIMINARY PLAN ..... 975
2-1. Plan Submission and Distribution ..... 975
SECTION 3: FINAL PLAT ..... 976
SECTION 4: PLAT CONTENT (MINOR DEVELOPMENTS AND PLATTING ACTIONS) ..... 980
4-1. Lease parcel developments ..... 982
4-1.1. Platting Requirements ..... 983
4-1.2. Site Plan Requirements ..... 983
SECTION 5: CERTIFICATIONS ..... 984
SECTION 6: LETTERS OF AGENCY ..... 984
SECTION 7: REGULATORY PERMITS AND AUTHORIZATIONS ..... 984
7-1. General ..... 984
7-2. Preliminary Plans ..... 984
7-3. Additional Regulatory Permits and Authorizations ..... 985
SECTION 8: ENGINEERING PLANS ..... 986
8-1. General ..... 986
8-2. Reserved ..... 986
8-3. Engineering Plan Content ..... 986
ARTICLE FOUR—DESIGN STANDARDS ..... 988
SECTION 1: GENERAL ..... 988
SECTION 2: STREETS ..... 988
2-1. Public and/or Private Road Rights-of-Way ..... 988
2-1.1. Required Access to Land Developments ..... 988
2-1.2. Access to Commercial Developments ..... 996
2-2. Relation to Adjoining Street System ..... 997
2-3. Retrofitting Existing Public or Private Road Rights-of-Way ..... 997
2-4. Street Hierarchy ..... 998
2-5. Trip Generation ..... 998
2-6. Roadway Design Criteria ..... 998
A. Development intensity, paving width, and improvements ..... 998
B. Roadway design speed and posted speed ..... 1005
C. Roadway geometric design criteria ..... 1005
D. Grades ..... 1005
E. Crowns ..... 1005
F. Culs-de-sac ..... 1006
G. Alternative culs-de-sac ..... 1006
H. Temporary culs-de-sac ..... 1006
I. Bubble culs-de-sac ..... 1007
J. Medians and traffic control islands ..... 1007
K. Intersections ..... 1009
L. Intersection offsets ..... 1009
M. Pavement radius ..... 1010
N. Reverse curves ..... 1010
O. Roadside clearance ..... 1010
P. Driveway connections and design standards ..... 1011
Q. Shared driveways ..... 1012
R. Encroachment permits ..... 1013
S. Reserve Strips ..... 1013
2-7. Sidewalks ..... 1014
2-8. Pedestrian Paths ..... 1015
2-9. Connectivity to Public Schools and/or Parks ..... 1015
2-10. Bikeways ..... 1016
2-11. Private Street Maintenance ..... 1016
2-12. Reserved ..... 1016
SECTION 3: LOT LAYOUT ..... 1016
3-1. Blocks ..... 1016
3-2. Lots ..... 1016
SECTION 4: FLOOD PRONE AREAS ..... 1018
4-1. General ..... 1018
4-2. Roadways within Flood Prone Areas ..... 1018
4-3. Road Signage in Floodplains and Floodways ..... 1020
SECTION 5: UTILITY LOCATION ..... 1020
5-1. Overhead or Underground Facilities ..... 1020
5-2. Option to Total Underground Cable Utility Location ..... 1021
5-3. Easements for Utilities ..... 1021
SECTION 6: OPEN SPACE ..... 1022
6-1. General Provisions ..... 1022
6-2. Elements of Required Open Space ..... 1023
6-3. Options for Providing Open Space Off-site ..... 1026
A. Fee-in-lieu ..... 1026
B. Open space mitigation bank ..... 1027
6-4. Amount Available for Off-site Open Space ..... 1028
6-5. Management and Preservation of Open Space ..... 1029
6-6. Open Space Recording Issues ..... 1029
A. Restrictive covenants ..... 1029
B. Dedication to Horry County ..... 1030
C. Identification of open space on plats ..... 1030
SECTION 7: STREET NAMING AND ADDRESSING ..... 1030
7-1. Purpose ..... 1030
7-2. Applicability ..... 1030
7-3. Uniform Naming System ..... 1031
7-4. Street Naming Procedure ..... 1032
7-5. Commercial, Industrial and Multiple Family Address Numbers ..... 1033
7-6. Assignment of Addresses ..... 1034
7-7. Location of Numbers ..... 1034
7-8. Street Signs ..... 1035
SECTION 8: OFF-SITE IMPROVEMENT ..... 1036
8-1. Applicability ..... 1036
ARTICLE FIVE—IMPROVEMENT STANDARDS ..... 1036
SECTION 1: GENERAL PROVISIONS ..... 1036
1-1. Conformance ..... 1036
1-2. Commencement ..... 1036
1-3. Access ..... 1036
1-4. Inspection ..... 1036
1-5. Final Plat Approval ..... 1037
1-6. Changes in the Approved Plans and Specifications ..... 1037
SECTION 2: REQUIRED IMPROVEMENTS ..... 1037
2-1. Monuments ..... 1037
2-2. Stormwater ..... 1037
2-3. Lighting ..... 1037
2-4. Roadway Improvements ..... 1037
A. General ..... 1037
B. Pavement Standards ..... 1038
 1. Pavement thickness, sub-grade, and street profiles ..... 1038
 2. Minor developments on unpaved public roads ..... 1038
C. Curbs and Gutters ..... 1038
 1. General ..... 1038
 2. Curb type ..... 1038
 3. Shoulders ..... 1039
D. Bridges ..... 1039
 1. Vehicular ..... 1039
 2. Pedestrian and other types of bridges ..... 1039
E. Traffic control ..... 1039
2-5. Water Supply and Sewage Disposal Requirements ..... 1039
2-6. Auxiliary Turn Lane Requirements ..... 1039
SECTION 3: FINANCIAL GUARANTEES ..... 1041
3-1. General ..... 1041
3-2. Submittal ..... 1041
3-3. Acceptance of Financial Guarantees ..... 1041
3-4. Extensions ..... 1042
3-5. Setup and Extension Fees ..... 1042.1
3-6. Reductions ..... 1042.1
3-7. Drawing of a Financial Guarantee ..... 1042.1
3-8. Release of a Financial Guarantee ..... 1042.2
ARTICLE SIX—SPECIAL DESIGN STANDARDS ..... 1042.2
SECTION 1: MANUFACTURED HOUSING COMMUNITIES ..... 1042.2
1-1. Purpose ..... 1042.2
1-2. General ..... 1042.2
1-3. Special Design Standards and Development Provisions ..... 1042.2
A. Platting requirements ..... 1042.2
B. Expansion of existing "minor" manufactured home developments ..... 1042.2
C. Shared private driveways ..... 1042.3
D. Landscaping ..... 1042.3
E. Design standards ..... 1042.3
SECTION 2: RESERVED ..... 1042.4
SECTION 3: UTILITY INSTALLATIONS ..... 1042.4
3-1. General ..... 1042.4
3-2. Applicability ..... 1042.4
3-3. Lot Requirements ..... 1042.4
3-4. Access ..... 1042.5
A. Utility lots with direct access ..... 1042.5
B. Utility lots without direct access ..... 1042.5
3-5. Paving Standards ..... 1042.5
3-6. Screening ..... 1042.5
3-7. Platting Requirements ..... 1042.5
A. General ..... 1042.5
B. Exclusive easements ..... 1042.5
SECTION 4: CEMETERIES ..... 1042.5
4-1. General ..... 1042.5
4-2. Land Area and Height ..... 1042.6
4-3. Setbacks ..... 1042.6
4-4. Access, Parking, Maintenance, and Buffers/Landscaping ..... 1042.6
A. External access ..... 1042.6
B. Internal access ..... 1042.6
C. Maintenance ..... 1042.6
D. Buffers/landscaping ..... 1042.6
SECTION 5: BEACH DEVELOPMENT ..... 1042.6
5-1. Beach Development ..... 1042.6
SECTION 6: OFFICIAL MAP ..... 1042.7
6-1. Exemption of Property From the Restrictions of the Official Map ..... 1042.7
ARTICLE SEVEN—ACCESS MANAGEMENT ..... 1042.8
SECTION 1: GENERAL PROVISIONS ..... 1042.8
1-1. Applicability ..... 1042.8
1-2. Design Considerations ..... 1042.8
1-3. Number Allowed per Frontage ..... 1042.8
1-4. Location, Spacing, and Offset ..... 1042.9
1-5. Sight Distance ..... 1042.10
1-6. Proximity to Intersections, Ramps, Crossovers, and Railroads ..... 1042.10
1-7. Property-Line Clearance ..... 1042.10
1-8. Traffic Control ..... 1042.11
1-9. Shared Driveways (see also Shared Private Driveway Article 4, Section 2-6(Q)) ..... 1042.11
1-10. Flag Lots ..... 1042.11
1-11. Auxiliary Lanes ..... 1042.11
1-12. Frontage Roads ..... 1042.11
SECTION 2: RESIDENTIAL DRIVEWAYS ..... 1042.12
2-1. Single Residences and Small Apartment Complexes ..... 1042.12
2-2. Large Apartment Complexes ..... 1042.12
SECTION 3: COMMERCIAL AND INDUSTRIAL DRIVEWAYS ..... 1042.12
3-1. High-Turnover and/or Drive-Through Businesses ..... 1042.12
3-2. Shopping Centers and Other Large Developments ..... 1042.12
A. Impact studies ..... 1042.12
B. Out-parcels ..... 1042.13
3-3. Commercial/Industrial Driveways ..... 1042.13
SECTION 4: STREET INTERSECTIONS ..... 1042.14
SECTION 5: MEDIAN CROSSOVERS ..... 1042.15
5-1. General ..... 1042.15
5-2. Requirements ..... 1042.15
5-3. Design ..... 1042.16
SECTION 6: OTHER DRIVEWAYS ..... 1042.16
6-1. Temporary Driveways ..... 1042.16
6-2. Construction Driveways ..... 1042.16
SECTION 7: GEOMETRIC DESIGN ..... 1042.16
7-1. Angle of Intersection ..... 1042.16
7-2. Width ..... 1042.16
7-3. Radii ..... 1042.17
7-4. Approach Grade and Side Slope ..... 1042.17
7-5. Islands ..... 1042.17
7-6. Driveway Medians ..... 1042.17
7-7. Auxiliary Lanes ..... 1042.18
A. Acceleration and deceleration lanes ..... 1042.18
B. Left-turn storage lanes ..... 1042.18
ARTICLE EIGHT—RESERVED ..... 1042.20
ARTICLE NINE—DEFINITIONS ..... 1042.20
SECTION 1: GENERAL ..... 1042.20
SECTION 2: DEFINITIONS ..... 1042.57
APPENDICES ..... 1055