Title 16 — ConservationRelease 119-73
§460u–3 “Improved property” and “appropriate map” defined; terms and conditions for rights of use and occupancy
Title 16 › Chapter CHAPTER 1— - NATIONAL PARKS, MILITARY PARKS, MONUMENTS, AND SEASHORES › Subchapter SUBCHAPTER LXXIX— - INDIANA DUNES NATIONAL PARK › § 460u–3
Summary
An "improved property" is a detached, one-family house that meets three rules: its construction began before the date listed for the matching map; the house sits inside the area shown on that map; and it is not inside any area shown on a map with an earlier date. It also includes the land under the house if the same person owns both and the Secretary says that land is needed for enjoying the house only for noncommercial, residential use.
Full Legal Text
Title 16, §460u–3
Conservation — Source: USLM XML via OLRC
As used in this subchapter, the term “improved property” means a detached, one-family dwelling which meets each of the following criteria:
(1)The construction of the dwelling began before the date (shown in the table contained in this section) corresponding to the appropriate map.
(2)The property is located within the boundaries delineated on the map described in such table which corresponds to such date.
(3)The property is not located within the boundaries of any other map referred to in such table which bears an earlier date.
The term “improved property” also includes the lands on which the dwelling is situated which meets both of the following criteria:
(A)The land is in the same ownership as the dwelling.
(B)The Secretary has designated the lands as reasonably necessary for the enjoyment of the dwelling for the sole purpose of noncommercial residential use.
Legislative History
Notes & Related Subsidiaries
Editorial Notes
Amendments
1992—Pub. L. 102–430 amended table generally. Prior to amendment, table read as follows: “Property Within Boundaries of Map
Construction
Began Before Dated October 1986, #626–80,033–B
February 1, 1986 Dated December 1980, #626–91014
January 1, 1981 Dated September 1976, #626–91007
February 1, 1973 Dated September 1966, #LNPNE–1008–ID
January 4, 1965”. 1986—Pub. L. 99–583 substituted provisions defining “improved property” and “appropriate map” for former provisions which read as follows: “The term “improved property”, whenever used in this subchapter, shall mean a detached, one-family dwelling,
Construction
of which was begun before
January 1, 1981 or, in the case of improved property located within the boundaries delineated on a map identified as “Boundary Map, Indiana Dunes National Lakeshore”, dated September 1976 and bearing the number 626–91007, before
February 1, 1973, or, in the case of improved property located within the boundaries delineated on a map identified as “A Proposed Indiana Dunes National Lakeshore”, dated September 1966, and bearing the number “LNPNE–1008–ID”, which map is on file and available for public inspection in the Office of the Director of the National Park Service, Department of the Interior, before
January 4, 1965, together with so much of the land on which the dwelling is situated, the said land being in the same ownership as the dwelling, as the Secretary shall designate to be reasonably necessary for the enjoyment of the dwelling for the sole purpose of noncommercial residential use, together with any structures accessory to the dwelling which are situated on the lands so designated.” 1980—Pub. L. 96–612 inserted “
January 1, 1981 or, in the case of improved property located within the boundaries delineated on a map identified as ‘Boundary Map, Indiana Dunes National Lakeshore’, dated September 1976 and bearing the number 626–91007, before” after “begun before”. 1976—Pub. L. 94–549 struck out subsec. (a) which related to the suspension of the authority of the Secretary to acquire improved property by condemnation when an appropriate zoning agency had in force a valid zoning ordinance, designated subsec. (b) as the entire provision, and in the entire provision as so designated, inserted provision including in definition of “improved property” a one-family dwelling the
Construction
of which was begun before February 1, 1973, or in the case of improved property located within the boundaries of the map bearing the number “LNPNE–1008–ID”, property the
Construction
of which was begun before January 4, 1965, and provision which subjected all rights of use and occupancy to terms and conditions the Secretary deems appropriate.
Reference
Citations & Metadata
Citation
16 U.S.C. § 460u–3
Title 16 — Conservation
Last Updated
Apr 6, 2026
Release point: 119-73