The Commonwealth appeals from an Order of the court below discharging appellee by virtue of Pa.R.Crim.P. 1100, following his conviction for receiving stolen property.1 For the reasons which follow, we reverse.
A criminal complaint was filed against appellee on January 20,1977 establishing an initial Rule 1100 rúndate of July 18, 1977. On May 3, 1977, appellee executed a written waiver of his Rule 1100 rights and on June 27, 1977 appellee requested a continuance of the pretrial hearing on his application to suppress evidence. The trial court granted the request and rescheduled the hearing to July 25, 1977, seven days after the initial Rule 1100 rúndate. The court rescheduled the pretrial hearing a second time and it was finally held on August 12, 1977. On or about that date, the court further granted appellee’s request and continued the case until September 6, 1977 and directed the District Attorney to list the case for trial during the September Term of Criminal Court. On September 16, 1977, ten days past the continuance date set by the trial judge, the Commonwealth filed a petition to extend the time for commencement of trial, to which appellee filed an opposing answer. After a hearing on October 31, 1977, the trial court dismissed the petition as being premature on the basis of “stipulations and statements between and by counsel.”
*274The case proceeded to trial on November 7, 1977 and ended in a mistrial on November 10,1977. On November 17, 1977 the Commonwealth again filed a petition to extend. Appellee opposed the extension and filed, for the first time, a motion to dismiss under Rule 1100. Following a hearing, the motion was denied. A second trial commenced on January 3,1978 and appellee was found guilty of receiving stolen property. Appellee then filed post-trial motions arguing, inter alia, that he was denied his right to a speedy trial. The lower court agreed with this claim and ordered appellee discharged. This appeal by the Commonwealth followed.
The initial argument presented by the Commonwealth is that appellee waived his Rule 1100 rights by failing to file a motion to dismiss prior to the commencement of the initial trial. We agree.
It is well established that a defendant waives his Rule 1100 rights by failing to file a motion to dismiss prior to the commencement of trial. Commonwealth v. McCloud, 487 Pa. 191, 409 A.2d 29 (1979); Commonwealth v. Baines, 480 Pa. 26, 389 A.2d 68 (1978); See Commonwealth v. Chase, 494 Pa.Super.Ct. 212, 431 A.2d 224 (1981).
Following the grant of a new trial, a defendant’s rights to a speedy trial are prescribed by Rule 1100(e).2 A trial following a mistrial is treated as a new trial granted by the trial court. Hence Rule 1100(e)(1) is applicable here. See Commonwealth v. Legree, 256 Pa.Super.Ct. 128, 389 A.2d 634 (1978); Commonwealth v. Bytheway, 290 Pa.Super.Ct. 148, 434 A.2d 173 (1981); Commonwealth v. Manley, 491 Pa. 461, 421 A.2d 636 (1980). Appellee’s new trial, which *275commenced fifty four days after the trial court declared a mistrial in appellee’s first trial, satisfied the requirements of Rule 1100(e).
In Commonwealth v. Hughes, 256 Pa.Super.Ct. 105, 389 A.2d 623 (1978), we concluded that, following the grant of a contested petition to extend time for the commencement of trial under Rule 1100, it would be futile to require a motion to dismiss to be filed if defendant’s challenge on appeal rested on the same grounds as did his objection to the extension. The rule, as recently stated by our Supreme Court in Commonwealth v. Drake, 489 Pa. 541, 414 A.2d 1023 (1980), is as follows:
Where an extension is granted to the Commonwealth pursuant to section (c) of Rule 1100 and trial commences within the period allowed by the extension, no written application to dismiss need be filed as objection to the extension preserves the issue. Commonwealth v. Coleman, 477 Pa. 400, 383 A.2d 1268 (1978).
Id., 489 Pa. at 544 n.1, 414 A.2d at 1024 n.1.
The exception to the requirement of an application to dismiss, as articulated by Drake, Coleman and Hughes, is inapplicable to the present case. Here the trial court did not grant the Commonwealth’s petition to extend; rather, the trial court dismissed the petition as premature upon stipulation of the Commonwealth and the appellee. Therefore, it cannot be said that it would have been futile for the appellee to file a motion to dismiss following the lapse of 180 days and prior to the commencement of the first trial. Had appellee filed a timely motion to dismiss, the trial court would have been obliged to consider the Rule 1100 question on the merits. The failure of appellee to do so worked a waiver. Therefore, we reverse the order of the trial court discharging the appellee and remand the case to the lower court with the directive that it reinstate the conviction of the appellee on the aforementioned charge and proceed accordingly with sentencing.
Reversed and remanded.
MONTEMURO, J., files a dissenting opinion.. 18 P.S. § 3925.
. Pa.R.Crim.P. 1100(e) provides:
(1) When a trial court has granted a new trial and no appeal has been perfected, the new trial shall commence within one hundred and twenty (120) days after the date of the order granting a new trial.
(2) When an appellate court has granted a new trial, or has affirmed an order of a trial court granting a new trial, the new trial shall commence within one hundred and twenty (120) days after the appellate court remands the record to the trial court. The date of remand shall be the date as it appears in the appellate court docket.