Opinion by
Mb. Justice Benjamin E. Jones,On December 26, 1956, the Commonwealth of Pennsylvania, acting through the Department of Forests and Waters, condemned for state park purposes certain properties located on 5th, 6th, Commerce and Cuthbert Streets in Philadelphia of which Eobert B. Wolf was the record owner.
On January 23, 1957, a board of view was appointed to assess the damages to these properties; after hearing, the board on April 25, 1958 awarded Wolf $415,-800, an amount which included damages as compensation for delay in payment. On May 23, 1958, Wolf appealed to the Court of Common Pleas No. 2 of Philadelphia County alleging that the board’s award was in*501adequate. The matter was then heard de novo before President Judge Sloane and a jury and, at trial, the court submitted to the jury two questions: (1) the value of Wolf’s properties at the time of taking and (2) whether Wolf was entitled to any detention damages. The jury by its verdict fixed the value of these properties at the time of taking at $355,000 and found that Wolf was not entitled to any detention damages.
Wolf then filed motions for a new trial and for judgment n.o.v., the latter motion being premised on the ground that the trial court on the state of the record should have directed the jury to award detention damages at the rate of 6% per annum. The court below refused the motion for a new trial, granted the motion for judgment n.o.v. and entered judgment in favor of Wolf and against the 'Commonwealth in the amount of $421,917.50. The amount of this judgment was composed of the value of the properties as fixed by the jury — $355,000—together with detention damages of $66,917.50. The judgment as entered by the court awarded detention damages from the date of the taking up to the date of the entry of judgment (February 17, 1960) not up to the date of the jury’s verdict '(November 5, 1959) and furthermore, provided for interest at six (6%) percent per annum from the time of its entry to the time of final payment.1 From that judgment the Commonwealth has taken this appeal.
The Commonwealth contends: (1) that Wolf forfeited any right to detention damages by reason of excessive and unreasonable demands on his part; (2) that, even if Wolf were entitled to detention damages, *502lie could not claim such damages beyond the date of the jury’s verdict; (3) that-the Commonwealth is immune from the payment, of any interest upon the judgment.
In Whitcomb v. Philadelphia, 264 Pa. 277, 107 A. 705, we said (p. 284): “When land is taken under the power of eminent domain, the owner thereof acquires the right to its value immediately upon appropriation. Until that value has been definitely ascertained, it -is called-damages, not a debt due; but when ascertained it relates back to the time of taking, and the owner is entitled to compensation for delay in its payment, unless just cause be shown to the contrary. ■ [citing cases]” In Fidelity-Philadelphia Trust Company v. Commonwealth, 352 Pa. 143, 145, 42 A. 2d 585, Justice (now 'Chief Justice) Jones, speaking for this Court, stated: “Prima facie, an owner of private property which is condemned and appropriated for public use is entitled to damages for delay in payment of the sum due as reasonable compensation for the property taken. [citing cases]. The right to damages for delay in payment in such cases may, of course, be lost if the cause for the delay is the fault of the property owner. Such fault may be evidenced by an unconscionable or excessive claim of damages by the owner of the property or by his refusal, as otherwise indicated,'to negotiate for the amicable settlement of the property damages. ‘But the lam [does] not presume any such conduct on his [the owner’s] part’: Wayne v. Pennsylvania Railroad Company, supra, at p. 515. There is no evidence in this case of any unwillingness or refusal on the part of the plaintiff to arrive at an amicable adjustment of the damages nor of any effort by either party to that end. In that situhtion, the parties presumably being content to have the damages determined by appropriate legal proceedings, the owner’s right to damages for delay in payment remains unimpaired. Cf. Hoffman v. Philadelphia, 250 Pa. 1, 5-6, 95 A. 322.
*503“Such being the law in general;- is damage for delay in payment compensable when the Commonwealth is the condemnor? We think it is. Loss of-use of the property or its proceeds because of delay in payment is an element of damage the same as is the value of the appropriated property. The law so recognizes: see cases cited supra. •• The Constitution of .the State requires that just compensation be first made or secured for the taking of: private property for public use. Where that is not first done, i.e., at the time of the taking, the integrity of the constitutional reqiiirement can be respected only by including in the award for the value of the property taken such damage as there may have been (within legally.prescribed limits) due to the delay in payment for the property.”
The Commonwealth takes the position that Wolf, by reason of his excessive and unreasonable demands, has forfeited any right to detention damages. Of course, if there was proof of such excessive and unreasonable demands, it would work a forfeiture of Wolf’s right to detention damages: Springer v. Allegheny County, 401 Pa. 557, 567, 165 A. 2d 383 and cases therein cited.
The Commonwealth argues that it proved that Wolf’s demands were unreasonable and excessive in two ways: (1) that the valuations placed upon the property by Wolf’s real estate experts were unreasonable and excessive and that Wolf was bound by such valuations2 and, (2) as stated in the Commonwealth’s brief, the “[cjondemnee refused to accept less than $750,000 in settlement of his claim. Immediately prior to trial, it was indicated that hé [the condeinnee] might consider accepting an unnamed sum exceeding $600,000. *504During trial, attempts by the trial judge to effect settlement for a lesser sum were rejected by [Wolf]”.
As to the Commonwealth’s first argument the record does not disclose any testimony whatsoever as to what Wolf had demanded from the Commonwealth for these properties. If Wolf did make a demand or demands of any representative of the Commonwealth, why did the Commonwealth not call such representative to prove the nature of such demand or demands? The Commonwealth elected not to present such proof. In lieu thereof, the Commonwealth takes the position that, because the valuations placed by Wolf’s real estate experts were approximately $400,000 greater than the valuations placed by the Commonwealth’s experts, Wolf was bound by such valuations of his experts and the jury could have found that his demand or demands equated the valuations placed by the real estate experts and, therefore, were unreasonable and excessive. Springer, supra, completely and effectively shatters this argument (p. 569) : “Obviously, he [the owner] could not be found to have been exorbitant or unreasonable in his demands because of the valuations placed upon it [his properly] by the expert witnesses he produced at trial”. This phase of the Commonwealth’s argument is without merit.
The Commonwealth’s second argument is not only without merit but somewhat amazing. It is axiomatic that on appeal only that which appears of record is subject to argument by counsel or to consideration by the appellate court. This phase of the Commonwealth’s argument is completely and entirely based upon matters which do not appear upon the record. There is not a scintilla of evidence that Wolf refused to accept less than $750,000, that at trial Wolf indicated that he might accept an unnamed sum in excess of $600,000 or that Wolf rejected any attempts on the part of the trial judge to negotiate a settlement. Not only can we not *505consider such an argument but such an attempt to go outside the record in this matter is not to be countenanced: Daniels Company, etc. v. Nevling, 385 Pa. 276, 122 A. 2d 814.
On the state of the record the court below erred in permitting the jury to pass upon the question of detention damages. Wolf had a prima facie right to recover detention damages and the record is bare of proof of any conduct upon his part which could result in a forfeiture of his right to such damages. In the absence of any such evidence, the jury was not in a position to deny detention damages and, in entering judgment n.o.v., for this reason, the court below justifiably corrected its own error.
More serious are the questions of the propriety of the court’s action in allowing detention damages to the date of the judgment rather than the date of the jury’s verdict and the allowance of interest against the Commonwealth until the date of final payment.
The Constitution of Pennsylvania provides that “just compensation be first made and secured for the taking of private property for public use”. (Emphasis supplied). Implicit in the integrity of this constitutional requirement is an obligation upon the part of the Commonwealth to pay such just compensation with as much expedition and with such absence of delay as the circumstances will permit. If the period from the time of the taking of the property to the date of receipt of compensation therefor be unduly extended and if the delay in payment is not due to the fault of the person whose property has been taken, then the compensation to be just should include not only the value of the property at the time of taking but also damages during the period within which payment of such value is withheld.
Where the condemnor of property is a body other than the Commonwealth, just compensation is assured *506not only by tbe award of detention damages3 from tbe date-of the taking of the property to-the date of tbe award but also-by the allowance of interest from tbe date of tbe -award to tbe date of payment.4 However, where tbe condemnor is tbe 'Commonwealth we have held that tbe Commonwealth is immune from tbe payment of any interest on tbe award (Culver v. Commonwealth, 348 Pa. 472, 35 A. 2d 64),5 although recognizing tbe liability of. the Commonwealth for detention damages (Waugh v. Commonwealth, supra; Fidelity-Philadelphia Trust Co. v. Commonwealth, supra).
■ As a result of our prior decisions in tbe field of eminent domain tbe Commonwealth is placed in a favored status so far as tbe constitutional requirement of “just compensation” is concerned and tbe Commonwealth, unlike all other condemnors, does not have to pay tbe person or persons whose property has been taken any compensation for-any delay in payment following tbe award. By way of illustration,- tbe instant jury award was made on November 5, 1959 -but tbe Commonwealth' did not pay any part of such award until May 26, 1960, although tbe jury bad fixed tbe amount of the-basic, as distinguished from tbe detention, damages at -a figure in accordance with tbe Commonwealth’s estimates. Had these properties been taken by a condemnor other than tbe Commonwealth, tbe property owner would have received upwards of *507$10,000 by way of interest on .the award, whereas the Commonwealth, by reason of a judicially created immunity. from payment of interest, seeks to be relieved from paying, any compensation whatsoever during this period.
Many years ago this Court stated that “The compensation (for the taking of land) must be a just one at the time its amount is settled . . . (Emphasis supplied) Klages v. Philadelphia and Reading Terminal Company, 160 Pa. 386, 390, 28 A. 862. The constitutional. mandate of “just compensation” should be applied regardless of the status of the condemnor and the person whose property has been taken should receive identical treatment at the hands of any condemnor. The only sensible, logical and equitable manner. in which “the integrity of the constitutional requirement” can be maintained is to require that the Commonwealth pay interest on the amount of the award from the date of the award until the Commonwealth has actually paid the value of the property taken.6
To require the Commonwealth to pay interest until final payment of the award will impose upon it no unreasonable or wrongful burden7 and, at the same time, such a requirement will secure equal justice to the condemnee and full compliance with both the letter and spirit of the constitutional guarantee.
In the instant factual situation, the jury made its award on November 5, 1959. Approximately three months later, the court entered a judgment n.o.v. which *508had the effect of adding to the jury’s award of the value of the properties damages for detention up until the date of the entry of the judgment. What the court did was to remold the jury’s award and to enter a judgment expressive of such remolded award, and through such court action the condemnee was awarded both the value of the properties as found 'by the jury plus detention damages. Under these circumstances, the court acted properly in calculating the detention damages to the date of the entry of its judgment. Upon such judgment interest should run until the date of final payment thereof by the Commonwealth to Wolf.
Judgment affirmed.
Mr. Justice Cohen dissents from that portion of this opinion which allows interest on the judgment.In his opinion for the conrt en bane, President Judge Sloane stated that the provision as to interest “was in part excessive since [Wolf] would thereby receive interest on detention money in addition to detention damages with respect to the valuation.” It should be noted that the Commonwealth paid Wolf $355,000 on May 26, 1960.
In this connection it should be noted -that Morris Wolf — one of the actual owners — testified but his testimony disclosed no demand nor did it equate the real estate experts' valuations with any demand he made.
Even .though detention damage is-not interest, such damage — - in the absence- of any evidence to justify a lower figure — is computed at the regular interest rate: Frontage, Inc. v. Allegheny County, 400 Pa. 249, 259, 162 A. 2d 1; Waugh v. Commonwealth, 394 Pa. 166, 175, 146 A. 2d 297.
Act of April 25, 1929, P. L. 777, No. 328, §1,' as amended by the- Act of March 26, 1931, P. L. 10, No. 7, §1, 26 PS §43.
Cf: Lichtenstein v. Pennsylvania Turnpike Commission, 398 Pa. 415, 158 A. 2d 461; Treser v. General State Authority, 190 Pa. Superior Ct. 490, 154 A. 2d 325.
To the extent Culver v. Commonwealth, 348 Pa. 472, 35 A. 2d 64, holds to the contrary, it is overruled.
The Commonwealth can protect itself by paying into court a substantial amount of the value of the property at the time of its taking as reflected by the opinions and valuations placed on such property by real estate experts selected by the Commonwealth and thus can decrease the detention damages on interest which it may eventually have to pay.