This is a petition for a writ of certiorari to quash the record of a proceeding of the respondent board culminating in a decision to vary the application of the zoning ordinance of Cambridge. It appears that John J. Shine, Inc., hereafter termed the landowner, held title to a lot of land in Cambridge located within a residence district, as established by the zoning ordinance, within which the erection of a hotel was permitted and the erection of a garage for more than two cars was prohibited. The landowner applied to the superintendent of public buildings for the erection on its land of a hotel and garage for many cars combined in one building. This application was rejected because the land was located within a residence district where the erection of a garage for more than two cars was prohibited. The landowner thereupon appealed to the respondent board and petitioned for a change in the application of the zoning ordinance to the end that the erection on its land of an apartment hotel of first class fireproof construction with garage facilities in the basement and subbasement, to contain one hundred and forty cars, might be legalized. The respondent board fixed a date for a public hearing on this appeal and petition and ordered notice thereof to be given in compliance with § 27A, added to G. L. c. 40 by St. 1924, c. 133. Affidavit of service of notice in accordance with the order was made in behalf of the landowner. A public hearing was held and subsequently the respondent board filed a decision. As a part thereof findings were made, concluding with an order that the appeal be granted and the application of the zoning ordinance be varied so as to permit the construction and use of the desired building.
The residence district was established by § 12 of the zoning ordinance of Cambridge. Confessedly the construction of the building described in the decision of the respondent board was prohibited within that district. By § 14 the appeal board was given some power to vary the application of the zoning law. It is not necessary to examine the provisions *422of this section because the respondent board did not act under it. By § 15 of the zoning ordinance provision was made to the effect that the respondent board “may permit in a residence district a garage for more than two motor vehicles . . . provided there are on file . . . the written consents of the owners of seventy-five per cent of the area of the private property within five hundred feet of the center of the lot on which the garage is proposed to be erected ...” with other specifications not here material. It is alleged in the petition that the zoning ordinance of Cambridge was adopted on December 31, 1923, and approved on January 7, 1924. The effect of §§ 12, 14 and 15 of the zoning ordinance of Cambridge was that no garage such as here is in question could be constructed except after the filing of written consents according to § 15, and the return does not show that such consents have been filed.
After the passage of the zoning ordinance the General Court supervened by the enactment of said § 27A, added to G. L. c. 40. It there was provided by a law of general scope (outside the city of Boston, see St. 1924, c. 488, § 19), that a board of appeal “may vary the application of any by-law or ordinance adopted under section twenty-five in specific cases wherein its enforcement would involve practical difficulty or unnecessary hardship and wherein desirable relief may be granted without substantially derogating from the intent and purpose of such by-law-or ordinance, but not otherwise.” The power of the General Court over the subject of zoning is supreme. Article 60 of the Amendments to the Constitution. When it has spoken as to any branch of that subject, conflicting by-laws or ordinances established by local authority must give way. The effect of said § 27A was to enlarge the powers of the board of appeal over those conferred by § 14 of the Cambridge ordinance. Section 15 of that ordinance is not thereby annulled. It remains effective so far as it goes. Inspector of Buildings of Lowell v. Stoklosa, 250 Mass. 52, 62. Its manifest design is to provide a safeguard against the invasion of residential districts by garages for more than two cars without the consent of a great majority of the interested landowners. That was a highly important feature of the *423zoning ordinance. One method of approach to permission for the erection of such garages is still provided by that section. Of course it was beyond the power of the local authorities to tie the hands of the legislative department of government as to a police regulation such as this. It was competent for the General Court to provide another way by which that end could be accomplished. That has been done by said § 27A. . But § 15 of the ordinance is still effective. Its force in conjunction with §§12 and 14 is to establish bounds to the authority of the appeal board. According to its terms and apart from § 27A of G. L. c. 40 the only way in which the landowner could erect the building desired was by procuring the written consents there specified, as a condition precedent to favorable action by the respondent board. It was within the jurisdictional power of the respondent board to vary the application of § 15, under said § 27A added to G. L. c. 40. It is apparent from the return of the respondent board that it did not undertake to do that. It is recited in the preliminary part of the decision of the respondent board that “The petitioner incorporated in its appeal a petition to vary the application of Section 12 of the Ordinance entitled ‘Construction, Use, Maintenance and Inspection of Buildings’ of said Cambridge adopted December 31, 1923, and approved January 7th, 1924, in so far as it pertains to premises situated at the southeast corner of Garden Street and Chauncy Street in said Cambridge, so as to permit the erection of an apartment hotel of first class fireproof construction, with garage facilities in the basement and subbasement for one hundred and forty automobiles.” This recital is correct. The appeal and petition of the landowner make no reference to failure to comply with § 15 of the ordinance and contain no request that the provisions of that section be varied in their application to the land in question. That section is ignored in every part of the record. That section confers important privileges upon landowners in a residential district. If it was the aim of the landowner to ask for variation in the application of that section he should have stated it in plain words. The notice to the public and other landowners ought to have con*424veyed information to that effect. The respondent board in dealing with the subject in its decision ought to have adjudicated with reference to that section as well as with reference to § 12, and passed upon all the points thereby raised as specified by said § 27A added to G. L. c. 40. The record of the respondent board shows nothing with respect to § 15 of the ordinance. There is no decision that its application ought to be varied in the public interests. The general phrase at the conclusion of the decision of the respondent board, to the effect that the zoning ordinance be varied as requested, cannot go beyond the specific recital already quoted, to the effect that the subject under consideration related exclusively to a petition to vary the application of § 12 of the zoning ordinance. That recital circumscribes all that is in the decision.
It follows that the record of the respondent board is fatally defective and that the writ of certiorari ought to issue. The petitioner was aggrieved by the order dismissing the petition. It is unnecessary to pass upon the other points argued.
Exceptions sustained.