A. 
The Town Board of the Town of Oyster Bay hereby finds that:
(1) 
There exists in the Town of Oyster Bay places, sites, structures and buildings of special historic significance or which, by reason of famous events, the antiquity or uniqueness of architectural construction and design, are of particular significance to the heritage of our town.
(2) 
The conservation, protection and preservation of such places, sites, structures and buildings is a public necessity in harmony with the Comprehensive Town Plan and will promote the public health, safety and general welfare.
B. 
Now, therefore, the Town Board hereby declares that the purpose of this chapter is to accomplish the conservation, protection and preservation of such places, sites, structures and buildings.
As used in this chapter, the following terms shall have the meanings indicated:
ALTERATION
Any act or process which changes one or more of the exterior architectural features of a structure designated as a landmark or any structure or building in an historic district.
BUILDING
A structure wholly or partially enclosed within exterior walls or within exterior or party walls and a roof, affording shelter to persons, animals or property.
EXTERIOR ARCHITECTURAL FEATURES
The architectural style, design, general arrangement and components of all of the outer surfaces of any building or structure, including but not limited to the kind, color and texture of the building material and the type and style of all windows, doors, lights, signs and other fixtures appurtenant to said building or structure.
HISTORIC DISTRICT
Any area which contains places, sites, structures or buildings which have a special character and ambiance or historical value or aesthetic interest and which represent one or more periods or styles of architecture of an era of history and which cause such area to constitute a distinct section of the town.
LANDMARK
Any place, structure or building of historical value or aesthetic interest by reason of its antiquity or uniqueness of architectural design or as part of the development, heritage or cultural characteristics of the town, county, state or nation.
LANDMARK AND HISTORIC DISTRICT MAP
A map to be prepared and maintained by the Division of Building identifying the location of all landmarks, landmark sites and historic districts.
LANDMARK SITE
A parcel or part thereof on which is situated a landmark, and any abutting parcel or part thereof constituting part of the premises on which the landmark is situated.
STRUCTURES
Any assembly of materials forming a construction framed of component structural parts for occupancy or use, including buildings.
STYLES OF ARCHITECTURE
Style recognized by one of the following organizations:
A. 
The National Register of Historic Places.
B. 
The Historic American Building Survey.
C. 
The Historic American Engineering Record, United States Department of the Interior, National Park Service.
D. 
The Division for Historic Preservation, New York State Office of Parks and Recreation.
E. 
The Nassau County Museum.
F. 
The National Trust for Historic Preservation.
G. 
The Society of Architectural Historians.