(a)    In this title the following words have the meanings indicated.

(b)    “Appurtenance and environmental setting” includes:

(1)    paved or unpaved walkways and driveways;

(2)    trees;

(3)    landscaping;

(4)    pastures;

(5)    croplands;

(6)    waterways; and

(7)    rocks.

(c)    “Commission” includes a historic district commission or a historic preservation commission.

(d)    “Demolition” includes any willful neglect in the maintenance and repair of a structure, other than the appurtenance and environmental setting of the structure, that:

(1)    is not due to a financial inability to maintain and repair the structure; and

(2)    threatens to result in a substantial deterioration of the exterior features of the structure.

(e)    “District” means a significant concentration, linkage, or continuity of sites, structures, or objects united historically or aesthetically by plan or development.

(f)    “Person” includes a unit of local government.

(g)    “Routine maintenance” means work that:

(1)    does not alter the exterior fabric or features of a site or structure; and

(2)    has no material effect on the historical, archaeological, or architectural significance of the site or structure.

(h)    “Site” means the location of:

(1)    an event of historic significance; or

(2)    a structure or ruin that possesses historic, archaeological, or cultural significance.

(i)    (1)    “Structure” means a combination of material to form a construction that is stable.

(2)    “Structure” includes:

(i)    a building;

(ii)    a stadium;

(iii)    a reviewing stand;

(iv)    a platform;

(v)    staging;

(vi)    an observation tower;

(vii)    a radio tower;

(viii)    a water tank or tower;

(ix)    a trestle;

(x)    a bridge;

(xi)    a pier;

(xii)    paving;

(xiii)    a bulkhead;

(xiv)    a wharf;

(xv)    a shed;

(xvi)    a coal bin;

(xvii) a shelter;

(xviii) a fence;

(xix)    a display sign that is visible or intended to be visible from a public way; and

(xx)    a part of a structure.