§ 1263.205.Improvements Pertaining to the Realty Defined; Determining Whether Property Can Be Removed Without Substantial Economic Loss

Article 3 turns to a category of property that sits at the boundary between real estate and personal property: machinery and equipment bolted, wired, or otherwise fixed to a building or parcel. Section 1263.205 gives this category a name -- improvements pertaining to the realty -- and a definition that decides whether it gets valued as part of the land or left out of the compensation picture entirely.

The test turns on removability. Machinery or equipment installed for use on the property taken (or on the remainder, if the taken property is part of a larger parcel) counts as an improvement pertaining to the realty when it can't be removed without substantial economic loss, or without substantial damage to the property it's attached to. The method of installation -- bolted down, wired in, or something else -- doesn't change that analysis.

Subdivision (b) supplies the yardstick for "substantial economic loss": compare what the item is worth staying in place as part of the real estate against what it would be worth if pulled out and sold separately. A large gap between those two numbers signals that removal would cause the kind of loss this section is built to prevent.