The plaintiffs have appealed from a judgment of the Court of Common Pleas dismissing their appeal from the action of the defendant commission in amending the zoning regulations of Ridgefield to permit the use of land by research and development laboratories under a special permit to be issued by the commission.
Zoning was adopted in Ridgefield in 1946, pursuant to what is now chapter 124 of the General Statutes. The zoning commission thereafter adopted zoning regulations and divided the town into zon *82 ing districts. In December, 1960, the regulations were amended by adding § 9A, authorizing the commission, subject to specified standards and conditions, to issue a special permit for the use of land for research and development laboratories in any zone in the town. A research and development laboratory is defined as a “private commercial enterprise engaged exclusively in the pursuit of scientific research and development, including research concerning, and development of, manufactured, processed or compounded products.” There are extensive provisions concerning the buildings, structures, facilities and equipment which can be used on property for which a special permit for a research and development laboratory has been issued. Commercial manufacture, production or fabrication of products for sale, lease or disposition other than for testing purposes is expressly forbidden. Also prohibited is the use of land for any laboratory which might create a risk of harm or damage to persons, structures or plant growth beyond the boundaries of the land. Safeguards are established to prevent any use which would cause noise, smoke, dust, odor and certain other specified conditions which are generally considered to be objectionable in a modern residential neighborhood.
Among the exacting requirements to be met to obtain a special permit are the following: Each property must consist of an area of at least forty acres in single ownership; the area which can be covered by buildings is limited; the height of structures and their location on the land with relation to street lines, side-lot lines and rear-lot lines are restricted; prescribed space to park motor vehicles must be provided; buildings, structures and parking areas must be screened by trees, shrubbery or other *83 means so as substantially to conceal them from surrounding properties at all seasons of the year; special conditions concerning access to and egress from the premises must be met; on the issuance of a special permit, the premises must be devoted exclusively to the use specified, together with the uses accessory thereto; plans concerning sanitary conditions on the premises must be submitted to the town director of health; the applicant must furnish to the commission any information reasonably required by it to enable it to determine whether the proposed use meets the requirements for a special permit. The regulation contains a provision that it shall be construed and administered so as to promote the health, safety, and economic and general welfare of the town as a whole and so as to minimize any detriment to the convenience and property values of property owners in the vicinity. The commission is required in each case, before it issues a permit, to find as a fact that such objectives are met. If a permit is issued, the commission is given continuing authority to inspect the premises at all reasonable times thereafter and to enforce continued compliance with the regulation and with the requirements of the permit. Authority to permit the use of land for laboratories is limited to a total of 240 acres in the entire town.
The action of the zoning commission in adopting the amendment was unanimous. In accordance with § 8-3a of the General Statutes, when the amendment was proposed, it was referred to the planning commission for consideration, and that commission voted unanimously to recommend its adoption by the zoning commission.
The plaintiffs, as owners of residential property in the town, could be adversely affected by the adop
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tion of § 9A of the regulations, if it involved a change in the comprehensive plan of zoning for the town, and are therefore entitled to appeal, as aggrieved persons, from the action of the commission.
Mills
v.
Town Plan & Zoning Commission,
The amendment of § 8-2 of the General Statutes in 1959 was subsequent to the decision of this court in
Pecora
v.
Zoning Commission,
The
Pécora
case was decided in July, 1958. We can assume that the legislature was aware of the interpretation which we placed on the statute.
Herald Publishing Co.
v.
Bill,
*87
In the law of zoning, “special permit” is used interchangeably with “special exception.”
Rosenfeld
v.
Zoning Board of Appeals,
In the light of the history, background and purpose of the statutory change and the circumstances which led to its adoption, there can be no doubt that the defendant commission, in adopting § 9A, the regulation in question, had authority to do so under the 1959 amendment to § 8-2.
The plaintiffs also claim that § 9A is invalid because it was not enacted in accordance with the comprehensive plan. The statute authorizing the adoption of zoning regulations directs that they shall be made in accordance with a comprehensive plan. General Statutes § 8-2;
Purtill
v.
Town Plan & Zoning Commission,
The entire history of zoning legislation indicates a clear intention on the part of the General Assembly, subject to certain underlying principles, to leave the solution of zoning questions to the local authority.
Couch
v.
Zoning Commission,
*90
The plaintiffs contend that § 9A violates the principles of zoning by creating what is known as a “floating zone,” that is, a zone without boundaries. We are not unmindful of the conflicts which have arisen in other jurisdictions over the authority to establish floating zones. In support of this method of zoning, see
Rodgers
v.
Tarrytown,
The claim has also been made that § 9A permits an industrial use in a residence zone, that it is a fundamental departure from the statutory principle of district zoning, and that it may lead to the destruction of the whole principle of zoning as embodied in the statutes. Whether a research laboratory as defined by § 9A constitutes an industrial use may be open to debate. That question aside, the plaintiffs, in advancing their claims, overlook the limitations and restrictions which are imposed by the language of the 1959 amendment to § 8-2 of the General Statutes. The power of the zoning commission to grant a special permit even when the stand
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ards prescribed in § 9A have been satisfied is still subject to tbe additional conditions stated in tbe statute. It is true that the standards set forth in § 9A must be satisfied to obtain a permit, but it is also true that the permit is subject “to conditions necessary to protect the public health, safety, convenience and property values.” General Statutes § 8-2. These conditions must always be present, for the right to zone rests on the reasonable exercise of the police power in the public interest.
Vartelas
v.
Water Resources Commission,
We are not now called on to decide whether, as a general proposition, conformance with § 9A of the Ridgefield regulations will authorize the issuance of a special permit for a research and development laboratory in any given situation. Our inquiry here is limited to the validity of § 9A. It is conceivable that some particular applicant may be unable to satisfy all the statutory requirements, even though he may be in a position to meet the standards fixed under § 9A. Whether all the conditions and requirements are satisfied in a specific ease must be determined by the circumstances of that case.
There is no error.
In this opinion the other judges concurred.
