Diamond Trust Bank Kenya Ltd v Mutubia & another (Civil Appeal E161 of 2023) [2026] KECA 1001 (KLR)
The bottom line
#Kenya's Court of Appeal confirmed that when a main lawsuit is struck out for lack of jurisdiction, any counterclaim in it dies too.
What this practically means
#Executive summary
#Questions the Court framed
#The issues the Court set itself to decide, in its own words.
- 1.whether the learned judge erred by failing to consider the appellant's replying affidavit filed in opposition to the 1st respondent's application for review
- 2.whether the learned Judge erred in failing to hold that the Court lacked jurisdiction to preside over further proceedings, and in holding that the appellant's counterclaim remained pending and capable of being prosecuted notwithstanding the Court of Appeal's decision striking out the main suit
Key legal issues
#Whether a trial judge may treat a replying affidavit filed after directions fixing the ruling date as a response to an application
The judge cannot be faulted for treating the application as unopposed where the affidavit was filed 25 days after directions and never placed before the judge
The appellant was duly served with the application and hearing notice on 6th April 2023 but filed no replying affidavit by the hearing of 4th May 2023. It filed its affidavit on 30th May 2023, 25 days after directions on delivery of the ruling, and made no attempt to place it before the learned Judge before the ruling. The judge therefore acted properly in proceeding on the premise that the application was unopposed.
Whether a counterclaim survives the striking out of the main suit for want of jurisdiction
It does not; all pleadings and proceedings founded on an incompetent suit are automatically rendered nullities, and a counterclaim cannot stand independently in a null proceeding
The Court of Appeal had conclusively determined that the ELC lacked jurisdiction over the 2nd respondent's suit and struck it out. Once the original suit was a nullity ab initio, no jurisdiction existed to entertain further proceedings, including the counterclaim involving the same subject matter. Order 7 rule 13 applies only where a properly-constituted court stays, discontinues or dismisses a suit; it cannot cure a jurisdictional nullity.
Whether the ELC could entertain an application for review of its order closing the file after the Court of Appeal had conclusively determined jurisdiction
It could not; the learned Judge could not assume jurisdiction to consider the review application once the Court of Appeal had struck out the main suit for want of jurisdiction
The question of the ELC's jurisdiction had been conclusively determined by the Court of Appeal's judgment of 24th June 2022. The implication of that judgment was that the ELC had no jurisdiction to entertain any further proceedings founded on the incompetent suit. The learned Judge's reliance on Order 7 rule 13 was a misstep, and in granting review he in effect sat on appeal on the Court of Appeal's judgment and reasserted jurisdiction he did not have.
Legal principles established
#- A suit filed in a court without jurisdiction is a nullity ab initio and all proceedings founded on it, including a counterclaim, are null and void; jurisdiction cannot arise from a null proceeding.
- Order 7 rule 13 of the Civil Procedure Rules sustains a counterclaim only where the main suit is stayed, discontinued or dismissed on merits by a court with jurisdiction; it cannot rescue a counterclaim where the main suit is struck out for want of jurisdiction.
Court orders
#- 1.Appeal allowed
- 2.Ruling and orders of the Environment and Land Court at Mombasa (S. M. Kibunja, J.) dated 25th July 2023 set aside
- 3.Each party to bear their own costs of the appeal
The bench
#One judgment of the whole court — no separate or dissenting opinions.
- On appeal from
- Environment and Land Court of Kenya at Mombasa
- Mombasa ELC Case No. 102 of 2019
- Jurisdiction invoked
- Appellate jurisdiction of the Court of Appeal under the Appellate Jurisdiction Act against a ruling of the Environment and Land Court
Relief refused
#Costs of the appeal to the appellant
The appeal was prompted by the learned Judge's misapprehension of the law on jurisdiction; the Court declined to award costs and directed each party to bear their own costs
Declaration that the counterclaim was automatically struck out
No such formal declaration was made; the relief was achieved by setting aside the ruling under appeal
Costs
Each party to bear their own costs of the appeal
Quotable passages
#Verbatim from the judgment, each located to the page it appears on in the official PDF — so these can be cited and checked directly.
It is an immutable principle that, if the court lacks jurisdiction over the original suit, the ensuing proceedings are void ab initio, and the court cannot entertain a counterclaim founded thereon because jurisdiction cannot arise from a null proceeding.
It goes without saying that the rule only sustains counterclaims where the main suit is stayed, discontinued or dismissed. It cannot rescue a counterclaim where the main suit has been struck out for want of jurisdiction.
Consequently, the ruling and orders of the Environment and Land Court of Kenya at Mombasa (S. M. Kibunja, J.) dated 25th July 2023 are hereby set aside.
Jurisdiction is everything. Without it a court has no power to make one more step.
Considering that the appeal was prompted by the learned Judge's misapprehension of the law on the jurisdictional issues raised with regard to the counterclaim, we hereby direct that each party bears their own costs of the appeal.
Issues in the judgment
#The judgment states it was delivered on 29th May 2026, an apparently anomalous future date relative to the appeal timeline (memorandum of appeal dated 26th September 2023; submissions filed February/March 2024)
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "Diamond Trust Bank Kenya Ltd v Mutubia & another (Civil Appeal E161 of 2023) [2026] KECA 1001 (KLR)", Case Analysis (2026). Civil Appeal (Mombasa) – appeal against ruling in Mombasa ELC Case No. 102 of 2019. Source: https://new.kenyalaw.org/akn/ke/judgment/keca/2026/1001/eng@2026-05-29
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.