Following denial by the board of appeals of Concord (the board) of a special permit to fill land in a flood plain zone, the plaintiff sought review in the Superior Court under G. L. c. 40A, § 21, as amended through St. 1974, c. 78, § l. 1 In that proceeding the plaintiff was also unsuccessful.
1. On appeal before us the plaintiff attacks adverse findings of the trial judge on the ground that they are inconsistent with facts contained in responses by the board to a request for admissions pursuant to Mass.R.Civ.P. 36(a),
2. Concerning the consequences of the plaintiff’s construction proposal, the judge made detailed findings of fact, including that: most of the land which the plaintiff sought permission to fill is subject to flooding; the proposed filling of a canal by the plaintiff would defeat the drainage function which the canal served; the velocity of water flow over a dam in the Assabet River would be increased such that erosion of an existing dam, washing out of existing fill and a change in the course of the Assabet River were likely; compensatory water storage in the locus would be reduced; the land of others would be adversely affected; and filling the upstream end of the canal would contribute to stagnation and pollution in the downstream unfilled end, causing detriment to the public health. This sampling of the judge’s findings does not exhaust his compilation of what was likely to go wrong if the plaintiff obtained the permit it wanted. We do not set aside findings of fact of a trial judge unless clearly erroneous, Mass.R.Civ.P. 52(a),
These findings amply support the judge’s determination that the board acted within its authority in denying the *481 plaintiff the special permit it sought. Under the applicable zoning by-law provision, § 4.2B(7), no land fill was permitted “in any part of the Flood Plain Conservancy District” without a special permit, and no special permit was to issue unless it were “proven to the satisfaction of the Board of Appeals, after the question has been referred to and reported on by the Planning Board and the Board of Health, as being in fact not subject to flooding or not unsuitable because of drainage conditions . . . and that the use . . . will not be detrimental to the public health, safety or welfare.” The planning board of Concord reported that the proposed fill “would interfere with the protection against the hazards of flood water inundation which the Flood Plain Conservancy District is intended to provide,” and the board of health reported that “the filling in of this one portion of the existing canal would be detrimental to the public health in respect to increased problems with pollution and stagnation in the adjacent portion of the canal . . . .”
No one, of course, has an absolute right to a special permit,
Humble Oil & Ref. Co.
v.
Board of Appeals of Amherst,
3. The plaintiff asserts that the Concord flood plain zoning by-law is unconstitutional as applied because it leaves the plaintiff without any practical use of its property and, therefore, amounts to a taking by eminent domain without just compensation. Compare
Commissioner of Natural Resources
v. S.
Volpe & Co.,
4. There is no merit to the plaintiff’s contention that a thirty-foot strip of its land is exempt from the flood plain controls because § IB of the zoning by-law permits an owner whose lot straddles a zoning district line to extend the less restrictive use for a distance of thirty feet into the more restrictive district. It is apparent that the Flood Plain Conservancy District is a so called overlay district imposed over the underlying use district. Whether land is subject to the flood plain restrictions or is subject merely to the conditions *483 of the underlying zone is a function of the grade of the land. As to land below the grades specified in § IE of the by-law, the flood plain controls override the controls of the underlying zone.
Judgment affirmed.
Notes
Under the recodification of The Zoning Enabling Act inserted by St. 1975, c. 808, § 3, the provisions relating to judicial review of decisions of a board of appeals or other special permit granting authority appear in G. L. c. 40A, § 17.
The board attempted to establish the fact that the admissions were never drawn to the attention of the judge by including in its brief an affidavit of counsel to that effect. The proper method for so doing is by a motion to a single justice of this court to enlarge the record appendix, or prior to argument, to ask leave, pursuant to Mass.R.A.P. 18(a), as amended July 1, 1979,
Unless the court on motion permits withdrawal or amendment of the admission, any matter admitted under rule 36 is conclusively established.
