OPINION OF THE COURT
Appellant seeks relief under the Post Conviction Hearing Act1 (PCHA) on the ground that he was denied *566effective assistance of counsel at trial.2 Appellant bases this claim on the fact that trial counsel failed to timely move for severance. We agree and reverse the judgment of sentence and order a new trial.
Appellant and co-defendant Westley Smith were charged with aggravated robbery and murder. They were jointly tried before a jury, found guilty of murder in the first degree and sentenced to life imprisonment.
After the case was called to trial and immediately before the jury was selected, each defendant moved orally for a separate trial. The trial court denied the motions as untimely in accordance with former Rules 304 and 305 of the Pennsylvania Rules of Criminal Procedure.3 Those rules *567required that a written application for severance be submitted to the‘trial court at least ten days prior to trial.
On direct appeal to this Court, the judgment of conviction was affirmed because there was “no suggestion in the record that the opportunity to file applications for separate trials did not earlier exist or that appellant or his counsel were unaware of the possible grounds for severance.” Commonwealth v. Smith, 457 Pa. 638, 642-43, 326 A.2d 60, 62 (1974).
As we stated in Commonwealth ex rel. Washington v. Maroney, the “particular course chosen by counsel [must have] some reasonable basis designed to effectuate his client’s interests.” 427 Pa. 599, 604, 235 A.2d 349, 352 (1957). Here, appellant’s right to a separate trial in this homicide case was absolute.4
Counsel’s untimely request for severance reflects a judgment by him that a separate trial would advance the interests of his client. In light of that judgment, there can be no reasonable basis for belatedly seeking this remedy. Hence appellant was denied effective assistance of trial counsel and is entitled to a new trial.
Accordingly, the judgment of sentence is reversed and a new trial is ordered.
LARSEN and FLAHERTY, JJ., file dissenting opinions.
EAGEN, C. J., dissents.