Board of Trustees National Social Security Fund v Judy Wambui Muigai [2017] KECA 276 (KLR)
The bottom line
#Kenya's Court of Appeal upheld most damages against NSSF for selling an already-sold house, but struck out a Kshs.500,000 exemplary damages award.
What this practically means
#Executive summary
#Key legal issues
#Mutual mistake as a defence to breach of contract
No mutual mistake was established; the mistake was solely the appellant's since only it had access to its records and knew the property had already been sold.
The Court held mutual mistake can only be found where both parties contributed to the state of affairs making performance impossible. The respondent had no access to the appellant's records and could not have known of the prior sale. The appellant's own witness attributed the error to poor record-keeping, and the appellant's contradictory defence in HCCC 684 of 2002 exposed its dishonesty.
Remoteness and foreseeability of damages for breach of contract
The damages awarded (save exemplary damages) were actual, foreseeable losses arising from the vendor's failure to convey good title.
Applying Hadley v Baxendale, where a vendor refuses to make good title the purchaser recovers actual damages. The losses were foreseeable given the terms of the agreement, the respondent's part performance, and the appellant's assurances of ownership, including the liberty to use the property commercially.
Valuation report as evidence of loss of bargain
The trial court properly relied on the respondent's valuation report; the appellant's belated criticism of its methodology could not be entertained on appeal having failed to object at trial or produce its own valuation.
The appellant never objected to the valuation report, did not procure its own valuation to counter it, and only raised the methodology complaint in submissions on appeal. Such concerns should have been raised before the trial court; they were not, so the criticism was of no assistance.
Exemplary damages in breach of contract
The award of Kshs.500,000/= exemplary damages was set aside as unjustified because none of the recognised categories for exemplary damages applied.
Exemplary damages punish and deter and are available only for oppressive, arbitrary or unconstitutional state action, profit-making wrongdoing exceeding compensation, or where statutorily authorised. None was discernible here; the trial court therefore acted on a wrong principle and the appellate court was entitled to interfere.
Illegality of structures/business raised for the first time on appeal
Issues not pleaded or raised in the defence, such as the alleged unlawfulness of the respondent's structures under the Physical Planning Act, could not be entertained on appeal.
The appellant's contention that improvements required City Council approval under section 30 of the Physical Planning Act was never part of its defence or attack at trial, being raised only in submissions. The trial court was right to ignore them, and the Court declined to consider the illegality argument.
Legal principles established
#- A Court of Appeal will only interfere with a trial judge's award of damages where the judge acted on a wrong principle of law or the award is so high or low as to be an entirely erroneous estimate.
- Where a vendor fails to make good title, the purchaser recovers actual damages suffered; mutual mistake cannot be attributed to a party who had no access to the vendor's records and played no role in the mistake.
- Exemplary damages are awarded only in cases of oppressive, arbitrary or unconstitutional action by government servants, wrongful conduct calculated to profit the defendant beyond compensation payable, or where expressly authorised by statute; the award of exemplary damages must rest on a correct principle.
Court orders
#- 1.Set aside the award of Kshs.500,000/= as exemplary damages
- 2.Appeal allowed only to the limited extent of the exemplary damages award; other heads of damages upheld
- 3.Appellant awarded ¼ of the costs of the appeal
- 4.Respondent awarded ¾ of the costs of the appeal as well as in the High Court
- 5.Interest on damages and costs in the trial court to run from the date of judgment
- On appeal from
- High Court of Kenya at Nairobi
- H.C.C.C. No. 203 of 2006
- Jurisdiction invoked
- First appeal to the Court of Appeal under the Court of Appeal jurisdiction (Appellate Jurisdiction Act/Article 164 of the Constitution), limited to quantum of damages
Key timeline
#Practical implications
#Frequently asked questions
#Later judgments citing this (1)
#Judgments in the corpus that rely on this one. Where the Court said how it treated the authority, that is shown.
- Sawa v Bakary (Civil Appeal E135 of 2023) [2026] KECA 1094 (KLR)[2026] KECA 1094 (KLR)12 Jun 2026applied
Cite this brief
#Cite this brief
Caselaw, "Board of Trustees National Social Security Fund v Judy Wambui Muigai [2017] KECA 276 (KLR)", Case Analysis (2017). Civil Appeal No. 262 of 2013. Source: https://new.kenyalaw.org/akn/ke/judgment/keca/2017/276/eng@2017-09-29
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.