An ordinance of the city of Omaha, passed in 1887, declared certain lots owned by John A. Horbach to be a nuisance and directed the board of public works to take the necessary steps to abate such nuisance. This was *86done. The lots were filled with earth and a special assessment against them was afterwards made by the city authorities to defray the cost of the improvement. This assessment remaining unpaid, the property was sold and a tax certificate issued to the purchaser, who assigned the same to the German Savings Bank, of which MeCague is uoav receiver. This action was brought in the district court for Douglas county to obtain a cancellation of the tax certificate as a cloud on Horbacli’s title. But the court on the trial adjudged the certificate to be a valid lien and ordered the lots sold for its satisfaction. Ilorbach has brought the case here on appeal.
The steps which resulted in the issuing of the tax certificate Were taken under section 29 of the charter of 1887, which is as folloAvs: “The mayor and council shall have power to require any and all lots or pieces of ground Avithin the city to be drained, filled, or graded, so as to prevent stagnant Avater, banks of earth, or any other nuisance accumulating or existing thereon; and upon the failure of the owners of such lots or pieces of ground to fill, drain, or grade the same, when so required, the council may cause such lots or pieces of ground to be drained, filled, or graded, and the cost and expense thereof shall be levied upon the property so filled, drained, or graded, and collected as other special taxes.” (Compiled Statutes 1887, ch. 12, sec. 29.) The validity of this section is assailed on the ground that it provides an unconstitutional basis of taxation. The contention is obviously unsound. The charge authorized by the section to defray the expense of draining, filling, or grading-lots, the condition of which amounts to a nuisance, is not a “tax” or “assessment” at all within the meaning of those terms as they are used in the constitution. The abatement of nuisances menacing the public health or safety is the main purpose of the Iuay, and its enactment was a warranted exercise of the police power of the state. (Cone v. City of Hartford, 28 Conn. 363; Williams v. Mayor of Detroit, 2 Mich. 560; Bancroft v. Cambridge, 126 Mass. *87438; Booth v. Town of Woodbury, 32 Conn. 128; O’Reiley v. Kankakee Valley Draining Co., 32 Ind. 169; Reeves v. Treasurer, 8 O. St. 333; Donnelly v. Decker, 58 Wis. 461; State v. City of Newark, 27 N. J. Law 185.)
But appellant insists that if the law is valid the city was not justified in proceeding under it without notice to him, and that no notice was ever given. The decree of the district court recites that no written notice or order requiring Horbach to fill or grade the lots was ever served. The language of this finding implies that the court may have reached the conclusion that notice in some other form was given, but after a diligent search we are prepared to say that the record affords no evidential support for that implication. And there can be in this case no presumption of law to supply the want of proof. (Hutchinson v. City of Omaha, 52 Neb. 345; Smith v. City of Omaha, 49 Neb. 883.) Under the section of the charter above quoted it is quite clear that the power of the city to fill or grade the lots in question at the owner’s expense depended upon a previous demand having been made upon him to do the work and a refusal on his part to do it. Demand and refusal were indispensable and prerequisite to the authority of the city to improve the property and charge it with the expense of the improvement. The legislature having prescribed the terms on which the city was authorized to make assessments of this character, the power to make them could be lawfully exercised, only, when there had been a substantial compliance with the statute. This proposition is well established by authority. (Anderson v. Commissioners of Hamilton County, 12 O. St. 644; Milton, v. Wacker, 40 Mich. 229; Edmiston v. Edmiston, 2 O. 253; Fass v. Sechawer, 60 Wis. 525; Grace v. Board of Health, 135 Mass. 490; Fitchbburg R. Co. v. City of Fitchburg, 121 Mass. 132; Northampton v. Abell, 127 Mass. 507; Hutchinson v. City of Omaha, 52 Neb. 345; Johnston v. City of Oshkosh, 21 Wis. 186.) In the case last mentioned, which involved the validity of an assessment for a local improvement, if, was held that, *88because there was a failure to comply with the provisions of the statute requiring the owner of the property to be notified and given an opportunity to do the work himself, the tax was unauthorized and wholly Amid. In the opinion of the court, delivered by Dixon, J., it is said: “Every one having had the slightest experience in such matters knows that the right reserved to owners and occupants to make the improvements themselves is a substantial right and one which cannot be dispensed with without very great danger of oppression and injustice.” And in Fass v. Sechawer, supra, Lyon, J., speaking of an assessment made without the statutory notice to the property owner and an opportunity to him to do the work himself, uses this language: “No notice being given, the board of public works would be absolutely powerless to make a valid contract to do the work, and thus the very groundwork of a tax to pay for the same would be wanting,” Our conclusion is that the city council of Omaha had no authority to grade appellant’s lots and was without jurisdiction to levy the assessment in controversy and that such assessment was and is absolutely void.
But it is urged on behalf of appellees that even if the assessment is void no relief can be granted against them in this action without requiring Horbacli to first pay the just and reasonable value of the improvement for which the tax was hwied. Such is not the law. Against a void special assessment, no question of estoppel being involved, a court of equity will always grant relief without imposing terms. (Brown v. City of Denver, 7 Colo. 305: Hawthorne v. City of East Portland, 13 Ore. 271; Bellevue Improvement. Co. v. Village of Bellevue, 39 Neb. 876; Smith, v. City of Omaha, 49 Neb. 883; Touzalin v. City of Omaha, 25 Neb. 817; Hutchinson v. City of Omaha, 52 Neb. 345; Harmon v. City of Omaha, 53 Neb. 164.)
We have not overlooked the argument of counsel for appellees that this assessment may be sustained under section 30 of the charter of 1887 without proof that any notice was given, Section 30 is as follows; “The mayor *89and council shall have power to make regulations to secure the general health of the city; to provide for the prevention, abatement, and removal of nuisances; to make and prescribe regulations for the location, construction, and keeping in order all slaughter houses, stock yards, warehouses, stables, or other places where offensive matter is kept, or is liable to accumulate, whether within the corporate limits or within three miles thereof; and to regulate or prevent the carrying on of any business which may be dangerous or detrimental to the public health or the manufacture or vending of articles obnoxious to the health of the inhabitants; and the mayor and council are hereby authorized to abate and remove any nuisance and the cause thereof in a summary manner at the cost of the owner or occupant of the premises where the nuisance or the cause thereof may be, and for that purpose may enter upon and take possession of any premises or property where such nuisance may exist or be produced, and may collect such cost by civil action in any court of competent jurisdiction, or may assess the same against any such premises or property.” (Compiled Statutes 1887, ch. 12a, sec. 30.) It will be observed that this section provides for the abatement of nuisances generally, while section 29 has special reference to the abatement of nuisances upon real estate by grading, filling, or draining the same. The latter section having-made specific provision for the abatement of nuisances of the kind in question in this case must, under a well settled rule of construction, be held exclusively applicable. (Merrick v. Kennedy, 46 Neb. 264; State v. City of Kearney, 49 Neb. 325.) The judgment of the district court is reversed and judgment will be entered in this court in accordance with the prayer of the petition.
Reversed and degree for plaintiff.