The plaintiff submitted a plan for a subdivision to the defendant commission which it refused to approve because the plan did not provide an open space for a park or playground. The plain *111 tiff brought this action in the Superior Court seeking a declaratory judgment and ancillary injunctive relief. The questions to which answers are sought are: (1) “Whether Section 2.3 of the Regulations of the Planning Commission of the City of Danbury is unconstitutional”; and (2) “Whether that portion of Section 8-25 of the Connecticut General Statutes, which pertains to open spaces for parks and playgrounds, which is quoted ... in the Stipulation of Pacts, is unconstitutional.” The case comes to us on a reservation by the Superior Court on stipulated facts.
The plaintiff acquired about 275 acres of undeveloped land in Danbury in 1958. The regulations of the planning commission of the city of Danbury then in force did not require that a subdivision plan show an area for a park or playground. In 1965, § 2.3 of the subdivision regulations was adopted, the material portion of which provides: “The Commission may require that a plan of subdivision show an area for park or playground. Such an area, if required, shall be at a rate of not more than four percent of the total area to be approved for subdivision, but not less than 10,000 square feet. The area shall, in the opinion of the Commission, be suitable for recreational use and located so as to fit in with a city wide recreation plan; it may be required to be contiguous with open spaces of neighboring subdivisions. It shall in all cases be available and accessible to all residents of the subdivision.” Thereafter, on April 3, 1968, the plaintiff submitted a plan for a subdivision containing eleven lots which was complete in all respects except that the plaintiff refused to, and did not, comply with the requirement that an area for a park or playground be set aside pursuant to the quoted section of the regulations. *112 The commission denied the plaintiff’s application for a subdivision because the plan submitted did not make provision for a park or playground area.
Section 2.3 of the planning commission’s regulations was adopted pursuant to § 8-25 of the General Statutes. The plaintiff claims that § 8-25 as it pertains to open spaces for parks and playgrounds is unconstitutional because it is vague and uncertain, lacks required standards, is an arbitrary and discriminatory abuse of the police power and amounts to an unauthorized tax for the use of the land. It claims that § 2.3 of the regulations is unconstitutional because it is vague and uncertain, lacks required standards, amounts to a taking of private property for public use without just compensation, is a deprivation of property rights without due process of law, is an arbitrary and discriminatory abuse of the police power and exceeds the legislative authority for its enactment.
A statute is not to be held unconstitutional unless its invalidity on that ground is established beyond reasonable doubt.
Adams
v.
Rubinow,
Where a statute declares a legislative policy, establishes primary standards for carrying it out and lays down an intelligible principle to which an administrative body must conform, it may authorize the administrative body to fill in the details by prescribing rules and regulations for the enforcement of the statute.
Roan
v.
Connecticut Industrial Building Commission,
The plaintiff also attacks § 2.3 of the commission’s regulations on the ground that it lacks the requisite specificity and exceeds the legislative authority for its enactment. The principle that a regulation, like a statute, cannot be too general in its terms is clear.
Powers
v.
Common Council,
The plaintiff attacks both the statute and the regulation for vagueness on the ground that each fails to set forth the legal status of the park or playground area which is required to be set aside. It has long been the law in this state that when conveyances are made by reference to a map or plot, each grantee to whom the conveyance is made acquires a private right or easement in a park or other open area delineated on the map or plot.
Pierce
v.
Roberts,
The plaintiff attacks both the statute and the regulation adopted under it on the ground that they constitute an arbitrary abuse of police power and amount to a taking of private property for public use without the payment of just compensation. To constitute a valid exercise of police power, both the legislation and the regulation must, of course, have a rational relation to the public welfare and must be reasonable and impartial.
Teuscher
v.
Zoning Board of Appeals,
The test which has been generally applied in determining whether a requirement that a developer set aside land for parks and playgrounds as a prerequisite to the approval of a subdivision plan is whether the burden cast upon the subdivider is
*118
specifically and uniquely attributable to his own activity. Where the requirement is uniquely attributable to the subdivider’s activity, it has been held to be a permissible exercise of the police power.
Billings Properties, Inc.
v.
Yellowstone County,
The cases just cited hold that a requirement that the developer dedicate open space to the public is valid on the ground that the burden imposed on him is uniquely attributable to his own activity because the increase in population in the area which will result from that activity is productive of the need for open space. It is to be noted that in both the
Jenad
and
Jordan
cases the court also sustained a requirement that the developer pay a sum of money to the municipality as an alternative to providing open space. Other jurisdictions have frowned upon a requirement that a subdivider make a cash payment in lieu of providing land for parks or open space. In
Haugen
v.
Gleason,
It is clear that the requirement which is cast upon the plaintiff by the regulation and statute with which we are concerned is uniquely and solely attributable to its activity in undertaking to establish a subdivision. Engaging in the activity is left to its own choice. When it undertakes to subdivide, the population of the area is necessarily increased and the need for open space for its people becomes a public one. Moreover, when it chooses to subdivide the land, the open space requirement renders the lots offered for sale more attractive and desirable to purchasers, a circumstance of value to the seller. One of the stipulated facts in this case is that “ [a] t the time of the purchase of the property in question by the plaintiff, the projected cost of development of the acreage under the regulations then in force in Danbury could not have included the cost of setting aside land for park or playground purposes.” The plaintiff argues that § 2.3 of the regulations, subsequently adopted, is an arbitrary exercise of the police power because it, in effect, imposes a “tax” on or confiscates for public use the portion of his property required to be set aside for a park or playground. Basically, however, the complaint is that the plaintiff should be able to assert an individual interest in filling the entire area with housing as superior to the public interest in maintaining a more healthful open space environment. For the reasons already discussed, the public welfare must be paramount.
We hold that the statute and the regulation are valid and constitutional exercises of the police *120 power. Billings Properties, Inc. v. Yellowstone County, supra; Jenad, Inc. v. Village of Scarsdale, supra; Jordan v. Menomonee Falls, supra.
To both questions in the reservation we answer, “No”.
In this opinion the other judges concurred.
