OPINION OF THE COURT
Wе consider whether a real estate developer with an option to buy a parcel of land has standing to challenge zoning restrictions that prevent its planned development from going forward. We hold that it does.
I.
Appellant Toll Brothers, Inc. describes itself as “the nation’s leading builder of luxury homes.... ” See Toll Brothers, http://www.tollbrothers.com (last visited January 15, 2009). 1 Toll Brothers prides itself on developing communities in prime locations; it carefully chooses “the most scenic areas that offer a blend of rural charm and suburban convenience.” Id. In early 2001, Toll Brothers found just such a setting on a 160-acre tract of land in the Township of Rеadington, New Jersey (“the Township”). Toll Brothers entered into an option contract with the tract’s owner, Readington Properties, LLC.
Pursuant to the contract, Readington Properties granted Toll Brothers an exclusive option to buy the tract at a fixed price. In exchange, Toll Brothers promised to make periodic payments to Readington Properties. The original contract stated a *135 five-year option with an expiration date of January 2006. Subsequent amendments have extended the option period, and Toll Brothers’ exclusive option remains in force. During the life of the option, Read-ington Properties cannot “enter into any lease, agreement of sale,” or any other agreement affecting the property. Appendix (“App.”) 203. In addition, Toll Brothers has the right to come onto the property “to perform engineering, environmental and such other feasibility studies” as it deems necessary. App. 200.
At the time of the contract’s formation, the Township’s zoning laws classified part of the tract as “research-office,” and part as “rural-residential.” The rural-residential classification allowed for “development of detached single-family dwelling units, farm and agricultural uses, and open space and parks.” Aрp. 45. Residential development in this zone could not exceed one unit per three acres. In the research-office zone, “general office development” was permitted. Id.
Toll Brothers quickly began to formulate plans for both the rural-residential and research-office portions of the property. For the rural-residential zone, the company “engaged in preliminary planning” to develop housing “for families with children.” App. 46, 49. As to the research-office zone, Toll Brothers drafted plans for an office park. For whatever reason, the office plans advanced more rapidly than thе residential plans. In May 2002, Toll Brothers submitted a formal application to the Township Planning Board requesting approval for construction of an office development. Toll Brothers claims that this proposal was consistent with the Township’s zoning ordinance “and with the general character” of the area. App. 46.
The Township did not approve Toll Brothers’ application. Instead, it passed an ordinance rezoning the entire tract “agricultural-residential.” The agricultural-residential zone allowed for just three uses by right: “(1) farms; (2) open space and parks; and (3) residential uses at one residential dwelling per six acres.” App. 47. As a result, office parks were prohibited. The requirement of six acres per dwelling, according to Toll Brothers, made any residential development economically unfeasible. Toll Brothers’ development plans thus have been thwarted.
Toll Brothers contends that this change in law was no ordinary zoning decision. It was instead part of a nefarious plot hatched by Township officials to “reduce the fair market value of properties held by disfavored landowners.” App. 33. By frustrating the lawful plans of Toll Brothers and other developers, Township officials sought to “drive down the value of the [targeted] properties] and acquire [them] cheaply at ... price[s] below their fair market values.” App. 36. They also “intended to discriminate against families with children ... in an effort to reduce [their] residential opportunities” within the Township. App. 41^42.
Toll Brothers claims the Township’s actions have caused it considerable injury. The company is in the real estate development business, but the Township has prevented all profitable development of the Readington Properties parcel. Toll Brothers is maintaining its option by rendering periodic payments to Readington Properties. If and when the Township approves Toll Brothers’ plans, the company still intends to exercise its option. In the meantime, Toll Brothers has spent considerable amounts of money on planning, including fees for “architects and other professionals.” App. 291. In addition to these “sunk costs,” Toll Brothers has also lost out on the potential profits.
*136 In August 2002, Toll Brothers filed a lawsuit against the Township in New Jersey Superior Court. The complaint alleged violations of the New Jersey Municipal Land Use Law, N.J. Stat. Ann. §§ 40-.55D-1 to -163; the Equal Protection Clause; the Due Process Clause; the Takings Clause; equivalent provisions of the New Jersey Constitution; and the public policy and law of New Jersey as expressеd in the state Supreme Court’s Mount Laurel decisions. 2 That action remains pending.
In December 2004, Toll Brothers brought this suit against the Township, the Township Committee, the Township Planning Board, and various Township officials (collectively, “defendants”). The allegations in this case are quite similar to the claims pending in state court, but they do not overlap completely. In this case, Toll Brothers brings claims under the Equal Protection Clause; the Due Process Clause; the Takings Clause; The Fair Housing Act of 1968, as amended, 42 U.S.C. §§ 3601-31; the New Jersey Law Against Discrimination, N.J. Stat. Ann. §§ 10:5-1 to -49; the federal Racketeer Influenced and Corrupt Organizations (RICO) Act, 18 U.S.C. §§ 1961-66; and New Jersey’s RICO Act, N.J. Stat. Ann. §§ 2C.41-1 to -6.2. Toll Brothers seeks an order “[invalidating and setting aside” the Township’s zoning ordinance, an order “enjoining Defendants ... from enforcing” the ordinance, and money “damages sustained as a result of Defendants’ illegal actions.” App. 67.
The defendants moved to dismiss Toll Brothers’ complaint for,
inter alia,
lack of standing.
3
Toll Brothers opposed the motion and, in the alternative, sought leave to file an amended complaint. In an unreported decision, the District Court granted the motion to dismiss.
See Toll Bros. v. Twp. of Readington,
No. 04-6043,
*137 II.
Toll Brothers alleged that the District Court had jurisdiction pursuant to 28 U.S.C. §§ 1331 and 1332 and supplemental jurisdiction over its state law claims pursuant to 28 U.S.C. § 1367. This Court has jurisdiction pursuant to 28 U.S.C. § 1291.
We exercise plenary review over the District Court’s dismissal of the complaint for lack of standing.
See Goode v. City of Philadelphia,
III.
Article III of the Constitution limits federal “judicial Power” to the adjudication of “Cases” or “Controversies.” U.S. Const, art. Ill, § 2. This limitation is essential to our system of separated рowers.
See Valley Forge Christian Coll. v. Ams. United for Separation of Church & State, Inc.,
Courts enforce the ease-or-controversy requirement through the several jus-ticiability doctrines that “ ‘cluster about Article III.’ ”
Allen v. Wright,
The “irreducible constitutional minimum” of Article III standing consists of three elements.
Lujan v. Defenders of Wildlife,
A.
While all three of these elements are constitutionally mandated, the injury-in-fact element is often determinative.
4
Under it, the plaintiff must suffer a palpable and distinct harm.
See Allen,
The critical issue for us is whether the Township’s rezoning of the Readington Properties parcel has cognizably injured Toll Brothers, an optionee with a plan to develop the property.
5
No binding author
*139
ity directly addresses an optionee’s standing to challenge zoning restrictions. Three decisions of our sister courts of appeals, however, indicate that an optionee with a plan to develop the underlying property suffers the requisite injury from zoning restrictions that block the planned development.
See Scott v. Greenville County,
The first is
Warth v. Seldin,
The second Supreme Court decision is
Village of Arlington Heights v. Metropolitan Housing Development Corp.,
Both cases are instructive here. First, Toll Brothers’ alleged injuries are far more particularized and concrete than those of the
Warth
homebuilders. For example, where the Pennfield ordinance prevented none of the
Warth
homebuilders from developing any particular project,
Toll Brothers’ alleged injuries also bear a strong resemblance to the injuries of the developer in
Arlington Heights.
Both plaintiffs had “detailed and specific” plans for the restricted properties.
See Arlington Heights,
Yet, as the defendants point out, there are differences between the harm alleged in
Arlington Heights
and the harm alleged in this case. The
Arlington Heights
developer had a 99-year lease on the restricted property and a conditional contract to purchase the land.
See id.
at 256,
Here, on the other hand, Toll Brothers is neither a lessee nor a contract purchaser. It has only an option to buy. Although that option does give Toll Brothers “an inchoate right to acquire the land which ... [is] protected in equity,” Toll Brothers does not have any present interest in the Readington Properties parcel.
Bright v. Forest Hill Park Dev. Co.,
The defendants say this distinction makes all the difference. Toll Brothers’ option, they assert, is just a “phantom connection” to the Readington Properties parcel, and the Township’s rezoning of the tract has produced “nothing morе than the loss of a speculative business opportunity.” Def. Br. 13. The defendants thus deride Toll Brothers’ allegations as abstract claims of future harm insufficient to establish injury-in-fact.
See Storino,
But these arguments unfairly diminish the valuable rights possessed by an op-tionee. Toll Brothers has paid (and continues to pay) substantial sums to Read-ington Properties. In exchange, Toll Brothers has gained the right to demand conveyance of the Readington Properties parcel for a set price at any time during the option period.
See
Stoebuek & Whitman,
supra,
at 799-800;
see also Brunswick Hills Racquet Club, Inc. v. Route 18 Shopping Ctr. Assocs.,
*142
Toll Brothers’ complaint alleges that the Township rezoned the Readington Properties parcel to “drive down [its] value” and “acquire [it] cheаply.” App. 36. By driving down the value of the Readington Properties parcel, the Township has also driven down the value of Toll Brothers’ option.
See
Hannover,
In sum, Toll Brothers holds an exclusive option to buy the Readington Properties parcel, and the company has expended considerable sums maintaining its option, planning office and residential developments, and submitting an application to build an office park on the property. The zoning restrictions that bar Toll Brothers’ рlanned developments have left the company unable to recoup these front-end costs, and the restrictions have also decreased the value of the company’s option. These economic harms amount to legally cognizable injury-in-fact.
B.
The second requirement for Article III standing is “traceability.”
Pitt News v. Fisher,
The defendants do not seriously argue that Toll Brothers fails to establish traceability. Toll Brothers challenges the defendants’ rezoning of the Readington Properties parcel to “agricultural-residential.” That rezoning directly caused Toll Brothers’ inability to move fоrward with its development plans, and it directly impacted the value of Toll Brothers’ option. No action of a third party is a more immediate cause of these harms. We therefore conclude that Toll Brothers easily satisfies the traceability element.
C.
Redressability is the final element of constitutional standing. This requirement is “closely related” to traceability, and the two prongs often overlap.
Powell Duffryn,
*143
Redressability is not a demand for mathematical certainty. It is sufficient for the plaintiff to establish a “substantial likelihood that the requested relief will remedy the alleged injury in fact.”
Stevens,
As in
Arlington Heights,
a decision striking down the Township’s zoning ordinance would not “guarantee” successful completion of Toll Brothers’ develоpment plans. The District Court correctly pointed out that “even if the Court were to rule in [Toll Brothers’] favor, it need not exercise its option.”
Toll Bros.,
Moreover, even leaving aside the likelihood of construction, a favorable decision likely will remedy the harm to Toll Brothers’ option. As discussed earlier, the option itself is property. If, as Toll Brothers clаims, the agricultural-residential ordinance has decreased the value of the Readington Properties parcel, then it has also decreased the value of Toll Brothers’ option. An order striking down the ordinance is likely to redress that injury by increasing the value of both the underlying real property and the option. We therefore hold that Toll Brothers satisfies the redressability requirement.
D.
As the previous discussion demonstrates, Toll Brothers satisfies all three constitutional standing elements. Further buttressing that conclusion are the very separation-of-powers principles that animate the doctrine. Article III standing preservеs the separation of powers by limiting federal courts to matters “ ‘of a Judi
*144
ciary nature.’ ”
DaimlerChrysler,
In this case, Toll Brothers alleges the defendants “specifically identified” the company as a “target[] for their illegal enterprise.” App. 44. The defendants then enacted their ordinance “to intentionally and maliciously block” Toll Brothers’ development of the Readington Properties parcel. App. 47. They did this because Toll Brothers was a “disfavored” developer. App. 38.
These allegations are not even remotely akin to “generally available grievance[s].”
See Hein,
Toll Brothers has alleged cognizable injuries that are fairly traceable to the defendants’ challenged actions and likely to be redressed by a favorable decision. As such, the District Court erred when it dismissed Toll Brothers’ complaint for lack of Article III standing. 10
IV.
Toll Brothers’ allegations, if true, give the company constitutional standing to press its claims. We will vacate the District Court’s contrary judgment and remand the case for further proceedings, with instructions that the District Court grant Toll Brothers leave to amend its complaint.
Notes
. “For purposes of ruling оn a motion to dismiss for want of standing, both the trial and reviewing courts must accept as true all material allegations of the complaint, and must construe the complaint in favor of the complaining party.”
Warth v. Seldin,
.
See generally S. Burlington County NAACP v. Twp. of Mount Laurel,
. The defendants’ motion to dismiss also raised the issue of
Colorado River
abstention.
See Colorado River Water Conservation Dist. v. United States,
.
See Teva Pharm. USA, Inc. v. Novartis Pharm. Corp.,
. We note that Toll Brothers seeks both in-junctive relief and damages. Standing, the Supreme Cоurt has stated, "is not dispensed in gross.”
Lewis v. Casey,
Also, Toll Brothers’ complaint contains eleven separate claims, and the company must "demonstrate standing for each claim [it] seeks to press.”
DaimlerChrysler,
. Some have read Warth "to leave substantial latitude for builders to obtain standing in other cases: the minimal property interest necessary to apply for a zoning variance— such as a conditional contract or option— would probably be sufficient to establish the requisite concrete dispute.” The Supreme Court, 1974 Term: Standing to Challenge Exclusionary Zoning Ordinances, 89 Harv. L.Rev. 189, 194 (1976) (emphasis added). Indeed, the New Jersey Municipal Land Use Law permits "the holder of an option or contract to purchase” to apply for a zoning variance. NJ. Stat. Ann. § 40:55D-4.
. The District Court also distinguished
Arlington Heights
by noting that the developer there was "a non-profit organization whose primary interest [was] making low-income housing available,” while Toll Brothers’ "primaiy interest ... is clearly economic gain.”
Toll Bros.,
.
See Helvering v. San Joaquin Fruit & Inv. Co.,
. The Supreme Court has not always been consistent about whether the prohibition on "generalized grievances” is an Article III mandate or a prudential standing limitation.
Compare Warth,
. We also hold that the District Court abused its discretion by refusing to grant Toll Brothers leave to amend its complaint. Under Federal Rule of Civil Procedure 15(a), leave to amend should be "freely given when justice so requires,” and we have recognized that "a district court must permit a curative amendment unless such an amendment would be inequitable or futile.”
Phillips v. County of Allegheny,
