property being valued, and must be sufficiently alike in respect to character, size, situation, usability, and improvements, to make it clear that the property sold and the property being valued are comparable in value and that the price realized for the property sold may be fairly considered as shedding light on the value of the property being valued.”
Given the inherent vagueness of this standard of “comparability,” appellate courts have recognized that “ ‘the trial judge . . . must be granted a wide discretion’ ” (County of Los Angeles v. Faus (1957) 48 Cal.2d 672, 678 [312 P.2d 680]) in determining the admissibility of sales sought to be relied upon as “comparable.” “[N]o general rule can be laid down regarding the degree of similarity that must exist to make such evidence admissible. It must necessarily vary with the circumstances of each particular case. Whether the properties are sufficiently similar to have some bearing on the value under consideration, and to be of any aid to the jury, must necessarily rest largely in the sound discretion of the trial court, which will not be interfered with unless abused.” (Wassenickv. Denver (1919) 67 Colo. 456, 464 [186 P. 533, 536]; see San Bernardino County Flood Control Dist. v. Sweet (1967) 255 Cal.App.2d 889, 905 [63 Cal.Rptr. 640]; People ex rel. State Park Com. v. Johnson (1962) 203 Cal.App.2d 712, 719 [22 Cal. Rptr. 149].)
Although the district does not deny that this broad discretion resides in the trial court, it does maintain that sales which are “substantially enhanced” can never properly be found to be “comparable sales,” because, assertedly by definition, such sales are not “sufficiently alike [the property to be valued] in respect to character, situation [or] usability. . . .” Section 816, however, does not establish criteria of “substantial” or “insubstantial” comparability, but rather requires the trial court to measure whether or not “the property sold” is “sufficiently alike” the property to be valued, by determining whether “the price realized for the property sold may be fairly considered as skedding ligkt on tke value of tke property being valued.” (Italics added.)
We recognize, of course, that in many, perhaps most, cases, a trial judge may find that sales of neighboring property which “substantially” reflect an enhancement value not properly shared by the condemned property, will not “shed light” on the value of the subject property, but rather will tend to confuse the issue if admitted into- evidence. In such cases the sales should, properly be excluded. We can conceive of a variety of situations, however, in which a trial court may reasonably find that such sales will “shed light” on the value of condemned land even though the sales reflect “substantial enhancement.”
In some cases, for example, a project will remain in the planning and