Ten taxpayers of Boston and three garage corporations, doing business in Boston and paying taxes on their property there, have brought this petition under G. L. (Ter. Ed.) c. 40, § 53, purporting also to seek relief under G. L. (Ter. Ed.) c. 231A, § 6, against the city, its three assessors and Boston Common Garage, Inc., a private corporation (hereinafter called Garage, Inc.). Garage, Inc., is the lessee of a portion of Boston Common, to be used for garage purposes, under a lease made pursuant to St. 1946, c. 294, as amended by St. 1948, c. 654, St. 1951, c. 355, and St. 1955, c. 529.
The petition seeks to restrain the assessors from assessing taxes on property in Boston for the year 1956 without likewise assessing taxes for that year upon the portion of Boston Common leased to Garage, Inc. It also seeks declarations (1) that the city cannot constitutionally raise money by taxing property within the city unless taxes are assessed to Garage, Inc., with respect to the leased portion of Boston *55 Common, and (2) that, notwithstanding an express exemption found in St. 1946, c. 294, § 2A, inserted by St. 1948, c. 654, § 1, the assessors are under a duty to assess a tax to Garage, Inc., with respect to the leased premises.
Demurrers to the petition, filed by the city, the assessors and Garage, Inc., were sustained and a final decree dismissing the petition was entered. Appeals were taken by the petitioners. The facts set forth below are alleged in the petition.
Statute 1946, c. 294, § 2, authorized the city “to enter into a contract with a private corporation for the construction and operation, at the expense of the corporation and without cost to the city, of a garage for motor vehicles under Boston Common . . . together with all necessary and convenient approaches above and below ground; . . . and of an underground passageway from said garage with entrance and exit at or near the corner of West and Tremont streets . . . and to grant a lease for such purposes to such corporation for a term of not exceeding forty years . . . .” The city by § 2 is also authorized to permit construction of a two lane traffic tunnel under the Public Garden, Charles Street and the Common from Commonwealth Avenue at or near Arlington Street to the proposed garage. The lessee, by the statute, is to pay a rental equivalent to not less than two per cent of its gross receipts.
The city owns Boston Common in fee.
Lowell
v.
Boston,
The corporate petitioners 1 each own in fee, and operate, a garage within 2,000 feet of the entrance of the projected garage and will be subjected to competition by Garage, Inc. Statute 1946, c. 294, does not authorize the city to control rates to be charged or otherwise to regulate the operation of the proposed garage and the city intends to refrain from such control or regulation.
Statute 1948, c. 654, § 1, inserted in St. 1946, c. 294, a new section, § 2A, reading, “No private corporation mentioned herein shall be assessed any tax upon any real estate, garage, underground passageway or traffic tunnel of which it is lessee hereunder or upon any structures or facilities constructed under any construction contract or lease while such lease is in force, the provisions of any general or special law to the contrary notwithstanding.”
The respondents other than Garage, Inc., contend that § 2A merely expressly confirms an exemption of city owned land, leased for public purposes, which would exist even without the enactment of § 2A and that, in any event, § 2A is valid. The petitioners assert that the operation of the proposed garage is in the nature of a private business and does not constitute a public use or a public purpose. Accordingly, they contend that § 2A grants a tax exemption, which (1) violates the provision relating to “proportional and reasonable . . . taxes” of Part II, c. 1, § 1, art. 4, of the Constitution of Massachusetts; and (2) denies the petitioners and others similarly situated the equal protection of *57 the laws in violation of the Fourteenth Amendment to the Constitution of the United States. 1
The assessors do not propose to make any assessment in 1956 to Garage, Inc., with respect to the leased property. They do, however, propose to assess the individual and corporate petitioners 1956 taxes with respect to their taxable property in Boston.
The petitioners assert that an actual controversy exists between the petitioners and the several respondents with respect to the duties of the latter under § 2A and with respect to the validity of § 2A.
No procedural questions are raised as grounds of demurrer. A ten taxpayers’ suit may be brought, under G. L. (Ter. Ed.) c. 40, § 53, to restrain a tax levy, alleged to be generally invalid.
Dowling
v. Assessors
of Boston,
The petition alleges that the “operation of the said garage is in the nature of a private business, and does not constitute a public use or a public purpose” and that the lease to Garage, Inc., was made “for business purposes.” These allegations we view as conclusions not admitted by the demurrers.
United Shoe Machinery Corp.
v.
Gale Shoe Manuf. Co.
The lease to Garage, Inc., however, plainly does have a “double aspect.” See
Allydonn Realty Corp.
v.
Holyoke Housing Authority,
The question of the validity of the tax exemption granted by § 2A of the garage legislation, however, was not determined by Lowell v. Boston. That case was decided several weeks before the enactment (or introduction as a bill) of St. 1948, c. 654, which inserted § 2A in the 1946 statute. The intimation in the Lowell case (at page 734) that "the taxation of the garage is a matter for the General Court, and the occupant of commercial property located on land . . . held by the city in trust may be made liable for the tax” did not purport to deal finally with the question of tax exemption and, of course, could not have dealt with the exemption granted by the 1948 statute later enacted. Accordingly, we have for consideration, without any binding prior decision on the precise issue, the case of city property leased for a public purpose, where the Legislature, as an incident of its plan for accompHshing that purpose, has made explicit statutory provision that the property so leased shall be exempt from taxation.
Apart from specific statutory provisions, no taxes are imposed in Massachusetts upon municipally owned property used for public purposes.
Rossire
v.
Boston,
Reasonable exemptions, both of public property and of the real estate used for public purposes, held by privately owned corporations, are not precluded by Part II, c. 1, § 1, art. 4, of the Constitution of the Commonwealth requiring that taxes on property must be “proportional and reasonable ” nor by the more general provisions of art. 10 of the Declaration of Rights. See
Assessors of Quincy
v.
Cunningham, Foundation,
With respect to public property, the Legislature has broad authority to make it taxable in whole or in part if it desires to do so.
Boston Fish Market Corp.
v.
Boston,
Here we are dealing not with property of the Commonwealth, the sovereign, but with property of the city of Boston. However, Boston Common is a property held by the city “as an agency of the government for the benefit of the public, and . . . the power of the Legislature to represent this interest is supreme.” See
Lowell
v.
Boston,
The conclusion which we reach in the present case is supported by a recent decision of the Supreme Court of Pennsylvania. See
Pittsburgh Public Parking Authority
v.
Board of Property Assessment,
The petitioners contend that the Legislature has exercised its power to tax to the lessee the leased portion of the Common by two statutes, one applicable to Boston and the other applicable on a State wide basis. 2 By St. 1922, c. 390, § 1, land owned by the city “if leased for business purposes” is made taxable. By G. L. (Ter. Ed.) c. 59, § 3A, as appearing in St. 1951, c. 667, § 1, such leased land is made taxable “if used or occupied for other than public purposes.” As indicated earlier, the respondents contend *64 that, even under these two statutes, the leased portion of Boston Common would be exempt from property taxation as public property used for public purposes. This question it is unnecessary to decide at this time in view of the express exemption of the leased property enacted in 1948 and found in § 2A of the garage legislation. 1 We consider that exemption to be valid, for we cannot say that it was beyond the power of the Legislature to adopt it as an incident of its plan for relieving traffic congestion in Boston.
In the light of the authorities just reviewed, we are of the opinion that the explicit exemption contained in § 2A is a valid exercise of the supreme authority of the Legislature with respect to Boston Common, even though the garage is leased to a private corporation operating it for profit in its own business, and even though other leased municipal properties, whose lessees use them for their business purposes, remain taxable. The broad public purpose (see
Lowell
v.
Boston,
There is nothing in
Dehydrating Process Co. of Gloucester, Inc.
v.
Gloucester,
The petitioners contend that the operation of the garage
*66
by Garage, Inc., cannot be regarded as a public use because of the failure of either the Legislature or the city to provide for the regulation and control of Garage, Inc., as, for example, in the matters of the rates to be charged and the quality of service to be rendered. They assert that some measure, at least, of public regulation and control is necessary to permit tax exemption of the garage in the hands of the lessee as property devoted to a public use. This argument is based upon language found in
Worcester
v.
Western Railroad,
The
Western Railroad
case decided that the right of way of a raihoad and necessary railroad structures on the right of way were not subject to taxation. Chief Justice Shaw reviewed carefully (at pages 565-566) the act incorporating the railroad and the duties imposed by law upon it. He concluded (at page 566) that from “the various provisions of the law, by which the rights and duties of the Western Rail Road Corporation are regulated, it is manifest that the establishment of that great thoroughfare is regarded as a public work, established by public authority, intended for the public use and benefit, the use of which is secured to the whole community, and constitutes therefore, like a . . . highway, a public easement.” He pointed out that the “only principle, on which the legislature could have authorized the taking of private property for its construction . . . is, that it was for the public use” and held (page 568) that the property was tax exempt to “the extent to which they ¡The railroad] are authorized to take land without the consent of the owner.” It is true that, in many of the cases following the
Western Railroad
case, railroad or utility corporations, subject to potential or actual State regulation, were the owners of the property there under discussion. See, for example,
Boston
v.
Boston & Albany Railroad,
170
*67
Mass. 95, 98-100;
Milford Water Co.
v.
Hopkinton,
The
Western Railroad
case, and the cases following it, do not greatly rely, as supporting tax exemption of property used for public purposes, on the fact that the corporations are subject to actual or potential public regulation. At most, these cases treat public regulation of the owner or occupant of real estate as one factor to be considered in determining whether the use of the real estate is in fact public. The major consideration “is the character of the use to which the property is put, and not of the party who uses it.”
Milford Water Co.
v.
Hopkinton,
We think that, under the applicable decisions, the fact that Garage, Inc., has not been subjected to public regulation of its rates or service has no tendency to indicate that the garage scheme was otherwise than for a public purpose. Consequently, this fact is not fatal to the tax exemption. Whether to include such regulation in the scheme was a *68 matter for legislative determination. The Legislature may well have believed 1 that the competition of other garages, of private parking lots, and of municipally owned off-street parking facilities, would ensure reasonable prices to the public for use of the proposed garage, thus avoiding an expensive and unnecessary rate regulatory process. On this record, the garage remains potentially subject to public regulation. Nothing indicates that the Legislature has in any manner purported to bar itself from future supervision of the charges or service of the lessee of the proposed garage in carrying out the public purpose of the garage. If that becomes appropriate, doubtless provision for such regulation will be sought.
What has been said under the Constitution of the Commonwealth about the validity of the tax exemption granted by § 2A in large part also disposes of the contention that the petitioners have been denied the equal protection of the laws in violation of the Fourteenth Amendment to the Constitution of the United States. The tax exemption here granted by the Legislature is with respect to property owned by the city of Boston and used for a public purpose as expressly authorized by the Legislature. All of this was within the legislative discretion in dealing with property owned by, or held for the benefit of, the sovereign.
Boston Fish Market Corp.
v.
Boston,
By St. 1946, c. 294, § 2 (3), only a minimum rent rate was fixed. The city was entirely free to fix a rent higher than the •minimum. Although the lessee, in negotiating the lease, would naturally give consideration to the possibility of re *69 peal of the tax exemption, the Legislature, in granting the exemption, would have been justified in believing that the city would normally obtain more favorable terms than if there had been no tax exemption, and that it would seek to obtain a rent high enough to compensate it for any loss of tax revenue by reason of the exemption. This would mean that the city, in another way, by proper negotiation, would receive the full equivalent of the tax, exemption from which had been granted.
Even if it be assumed that apart from § 2A the lessee of the garage would have been taxed with respect to the leased property, we perceive no denial of equal protection of the laws to any of the petitioners. The individual taxpayers have no cause to complain that this property, leased as a method of carrying out a public purpose, is not taxed while they are taxed. Separate classification for taxation or exemption of property used for a public purpose is within the legislative discretion and does not constitute an unconstitutional discrimination. “Neither due process nor equal protection imposes upon a state any rigid rule of equality of taxation. . . . [Inequalities which result from a singling out of one particular class for taxation or exemption, infringe no constitutional limitation. ... A legislature is not bound to tax every member of a class or none. It may make distinctions of degree having a rational basis, and when subjected to judicial scrutiny they must be presumed to rest on that basis if there is any conceivable state of facts which would support it.”
Carmichael
v.
Southern Coal & Coke Co.
There is no showing on this record that there has been any improper classification of this garage for separate treatment in the matter of taxation. There is no suggestion that the Commonwealth, permits taxation of any comparable garage property owned by the city and leased for a public purpose. The fact that the tax exemption applies only to a single property does not indicate denial of equal protection of the laws, where as here a proper classification has been made.
Independent Warehouses, Inc.
v.
Scheele,
The discrimination, held to be improper in
Dehydrating Process Co. of Gloucester, Inc.
v.
Gloucester,
This petition was seasonably brought to obtain a decision on a doubtful matter of substantial civic importance. It is not an appropriate case for the award of costs of appeal.
Leonard
v.
School Committee of Springfield,
Although there was no error in sustaining the demurrers, it will perhaps avoid future controversy if, as a matter of exercising the court’s discretion under G. L. (Ter. Ed.) c. 231A, § 6, inserted by St. 1945, c. 582, § 1, a binding determination of the rights of the parties is made. Accordingly, the Superior Court, in lieu of the interlocutory *71 decrees sustaining the demurrers and of the final decree dismissing the petition, will enter a decree declaring and determining (1) that the petitioners, and each of them, are not entitled to any affirmative or injunctive relief in equity, and (2) that, as made applicable to Garage, Inc., and its property, and, as affecting the property taxation of the petitioners, and each of them, and of their property, by the city of Boston, St. 1946, c. 294, § 2A, inserted by St. 1948, c. 654, § 1, (a) is in all respects a valid exercise of legislative power within the authority granted to the Legislature by Part II, c. 1, § 1, art. 4, of the Constitution of the Commonwealth and (b) does not deprive the petitioners, or any one or more of them, of the equal protection of the laws in violation of the Fourteenth Amendment to the Constitution of the United States.
So ordered.
Notes
The applicable statute does not purport to give these corporate petitioners standing to bring a ten taxpayers’ proceeding. Under G. L. (Ter. Ed.) c. 40, § 53, such a proceeding must be brought by “ten taxable inhabitants.” The word “inhabitant” normally would mean a natural person and in practical operation the statute seems to have been so construed. See G. L. (Ter. Ed.) c. 4, § 7, Fourteenth. Compare
Opinion of the Justices,
The Attorney General has been given due notice of the pendency of this petition (where the constitutional validity of § 2A is raised) as required by the last sentence of G. L. (Ter. Ed.) c. 231 A, § 8, inserted by St. 1945, c. 582, § 1.
See on this point
Wayland,
v.
County Commissioners of Middlesex,
Now found in substance in G. L. (Ter. Ed.) c. 59, § 5, Second, as amended by St. 1951, c. 667, § 2.
Certain decisions in other States, it is contended, provide precedent for holding invalid the exemption granted in § 2A. These decisions deal with statutory provisions different from, and in general far less specific in declaring the legislative purpose (and the method of carrying it out) than, the provisions here involved. We do not feel constrained to follow these cases. See, for example,
San Francisco
v.
Ross,
44 Cal. (2d) 52, holding (in a case involving no tax exemption) that eminent domain and public funds could not be used to acquire off-street parking space to be leased to a private operator, at least in the absence of specific provisions for regulation of the lessee’s rates;
Opinion to the Governor,
76 R. I. 365, advising that a proposed expenditure for a_ city yacht basin would be improper unless there should be struck out a provision for leasing the basin to private interests to operate for profit without regulation (no tax exemption was involved);
Foltz
v.
Indianapolis,
Statute 1922, c. 390, § 1, provides in part that “The lands and buildings owned by the city of Boston in fee, in trust or otherwise may, if leased for business purposes, be taxed by the assessors of taxes of said city and the taxes assessed to the lessees thereof or to their assigns in the same manner and to the same extent as if said lessees were the owners thereof in fee.” A somewhat similar provision of State wide application is found in G. L. (Ter. Ed.) c. 59, § 3A, as appearing in St. 1951, c. 667, § 1, which reads in part, “Real estate owned by ... a city or town, if used or occupied for other than public purposes, shall be taxed to the lessee or lessees thereof, or their assigns, ... in the same manner and to the same extent as if the said lessee or lessees or their assigns . . . were the owners thereof in fee, free of any trust.”
A decision whether, apart from § 2A, the leased Boston Common property would be taxable under St. 1922, c. 390, and G. L. (Ter. Ed.) c. 59, § 3A, will be necessary only if § 2A is repealed.
Similarly in granting tax exemption, the Legislature may reasonably have believed that without the tax exemption no corporation would undertake to construct the new garage facility on the Common at its own expense and attempt to amortize its cost within the forty years given to it before the property passed finally to the city under St. 1946, c. 294, § 2 (7). The provision for tax exemption of the leased real estate may also have been enacted with some consideration of the fact that the lessee of the garage would be subject to an excise under G. L. (Ter. Ed.) c. 63, § 32, as amended, in the measure of which the value of its leasehold interest in real estate not subject to local taxation would presumably be appropriately reflected. Compare the exemption considered in
Commissioner of Corporations & Taxation
v. Assessors
of Boston,
