Infill
rededication of land in an urban environment, usually open-space, to new construction

In urban planning, infill, or in-fill, is the rededication of land in an urban environment, usually open-space, to new construction. Infill also applies, within an urban polity, to construction on any undeveloped land that is not on the urban margin. The slightly broader term "land recycling" is sometimes used instead. Infill has been promoted as an economical use of existing infrastructure and a remedy for urban sprawl. Detractors view increased urban density as overloading urban services, including increased traffic congestion and pollution, and decreasing urban green space. Many conservatives also dislike it for social and historical reasons, partly due to its unproven effects and its similarity with gentrification.
In the urban planning and development industries, infill has been defined as the use of land within a built-up area for further construction, especially as part of a community redevelopment or growth management program or as part of smart growth.
It focuses on the reuse and repositioning of obsolete or underutilized buildings and sites. Such projects can also be considered as a means of sustainable land development close to a city's urban core.
Redevelopment or land recycling are broad terms which include redevelopment of previously developed land.
The public source identifies “Infill” as rededication of land in an urban environment, usually open-space, to new construction. This brief keeps that definition visible, then builds a research path around Infill, rededication and land.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 4, 2026. The linked authority identifier is Q811475. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Infill” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.