Housing Finance v Nathaniel Ngure Kihiu
The bottom line
#Kenya's Court of Appeal ruled that a borrower's new claim over loan overpayments could proceed despite an earlier case over the same loan.
What this practically means
#Executive summary
#Key legal issues
#Whether res judicata under section 7 of the Civil Procedure Act bars a second suit founded on a cause of action that arose after the first suit was determined
It does not. The court affirmed the High Court's finding that the respondent's claim of overpayment crystallising on discharge of charge in February 2012, about six months after the first suit's determination, could not have been raised in the former suit.
The court held that despite the same parties, loan contract and security, the decisive question is whether the second suit's cause of action arose after the first suit's finalization. The respondent alleged overpayment of about Kshs.1.3 million as at discharge of the security in February 2012, six months after the first judgment, and the borrower-lender relationship continued after that suit. Following Housing Finance v J. N. Wafubwa, post-determination developments bring the matter within the Henderson 'special case' exception.
Whether the existence of a new cause of action can be determined on a preliminary objection
No; it involves contested facts requiring evidence and is not amenable to determination as a demurrer.
There was contestation as to the nature and character of the supposed new cause of action and whether it in fact arose after determination of the first suit. Because the controversy involved matters of fact as well as law, resolution required evidence rather than a preliminary objection. The magistrate's ruling upholding res judicata as a preliminary matter was therefore unsustainable.
Whether the High Court erred in finding special circumstances excluding res judicata
The respondent conceded the special-circumstances framing was a misdirection, but the court held the ultimate finding that res judicata did not apply was sound and unaffected.
The respondent conceded the High Court misdirected itself in treating the case as one of special circumstances under Henderson, whereas its argument was that res judicata did not apply at all. The Court of Appeal nonetheless found the outcome correct because the new-cause-of-action analysis independently justified the result, aligning with Wafubwa where post-determination developments constituted special circumstances.
Legal principles established
#- The decisive test for res judicata is whether there is a new cause of action arising after the determination of the first suit which could not, with reasonable diligence, have been raised in it; same parties, contract or security do not by themselves attract the doctrine.
- Whether a supposed new cause of action arose after determination of the first suit is a question of contested fact requiring evidence, and is not a proper matter for resolution on a preliminary objection.
- Developments occurring after the institution and determination of a former suit constitute special circumstances bringing a subsequent suit within the exception to the doctrine of res judicata.
Court orders
#- 1.The appeal is dismissed in its entirety
- 2.Costs of the appeal awarded to the respondent
- On appeal from
- High Court
- NRB Civil Appeal No. 530 of 2014
- Jurisdiction invoked
- First appeal to the Court of Appeal from the High Court exercising appellate jurisdiction (Court of Appeal Act / Article 164 of the Constitution invoked by operation of law; not expressly stated in the judgment)
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "Housing Finance v Nathaniel Ngure Kihiu", Case Analysis (2026). Civil Appeal (Nairobi). Source: https://new.kenyalaw.org/akn/ke/judgment/keca/2026/408/eng@2026-02-27
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.