Item B: Update on Commercial/Industrial/Residential Land Studies

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demolished). They migh Iso agree, in broad terms, on certain attributes of the' land that constrain'its de lopment (either physically or legally) and suggest that it be classified as unbuil ble. Complications occur hen the physical assessment of vacancy gets overlaid on tax lot boundaries. If x lot boundaries did not have to be considered, then every square foot of Ian ould be characterized as vacant or developed. Tax lot boundaries, however, ofl e lump developed and vacant land together on the same tax lot (e.g., one house 0 a three-acre lot). Thus, on a tax lot level vacant land that is not constrained (i e , buildable land) comes in two varieties: totally vacant (no significant improve nts on the tax lot) and partially vacant (sometimes referred to as under-utili d land). Redevelopable land s not vacant, but it is available to support some of the new development dema ed by the increasing population and employment. Redevelopment occurs 0 edevelopable land. Here again the definitions are important and messy. It is clear that if a b .1 ing is removed and something is built in its place that redevelopment has occu d. But the tax-lot problem occurs there also~ What does one call a situation whe e vacant portion of a large tax lot gets development, without demolishing abiding elsewhere on the lot? Or when an existing structure is added to, in asing the density of development? Some jurisdictions u the term infill for this type of development. They may even apply the term to a t x lot itself: if surrounding tax lots are primarily developed, then an isola buildable tax lot (i.e., a tax lot totally or partially vacant) is also an infill t lot. Figure A-2 simplifi ome of these issues to define three types of land that can support new develo ent: buildable vacant land, buildable partially-vacant land, and redevelopable 1 nd. Given the amount 0 evelopment in any urban area, it is necessary to use some type of database stem for the land inventory. After assembling databases, the next step in the sup analysis is to classify each tax lot in the UGB in to a mutually exclusive cate ry. This classification typically includes the following categories: . Vacant land. Va nt Land means tax lots with no development. Some definitions use a inimum improvement value and size threshold for vacant land. . Partially-vacant I nd. Partially-vacant tax lots are sometimes called "underutilized" a d. This includes tax lots that have some development on them, but als ave visible vacant areas. Commercial and Industrial Lands Database ECONorthwest September 2006 Page 28