Summary of Opinion — Appellate Decision

Factual and Procedural Background

This appeal arises from a High Court decision by Judge Russen to make a Syers order (an order permitting one partner to buy the other partner’s interest at a valuation rather than by open market sale) following the dissolution of a farming partnership. The Appellant (a brother) challenged that order, contending that the partnership assets should have been sold on the open market with both partners permitted to bid.

Brief factual background (as found by the trial judge): Two brothers (the Respondent and the Appellant) inherited and operated a farm ("The Farm") with a third brother (Family Member A) until 2006 when Family Member A was bought out. From 2006 until dissolution in August 2022, the remaining brothers operated the partnership in equal shares. There was no formal partnership agreement; the partnership was at will.

Key events found by the trial judge included an important conversation in 2005/2006 in which the Appellant is recorded as having said that one day the Respondent would have to buy him out. Over the partnership's life the Respondent was identified as the driving force behind a major expansion (including building a large dairy unit), and the Respondent gave evidence that he had invested time and resources in reliance on an expectation that he would be permitted to buy the Appellant out at the partnership's end.

The Respondent commenced proceedings in August 2022 seeking declarations relating to dissolution and a buy-out. The trial judge found that, by reason of a "proprietary estoppel-ish" equity, it would be just to make a Syers order permitting the Respondent to acquire the Appellant's interest at a valuation determined by expert evidence. The Appellant appealed to the Court of Appeal challenging that approach.

Legal Issues Presented

1. Whether, on the facts, a Syers order (buy-out at a court-determined valuation rather than open market sale) was permissible and, if so, in what circumstances such an order is justified.
2. Whether the trial judge properly identified and applied an equity akin to proprietary estoppel (the "proprietary estoppel-ish" equity) to justify departing from the ordinary practice of ordering a sale.
3. Whether reliance upon expert valuation evidence to implement a Syers order was appropriate, or whether the judge wrongly substituted valuation evidence for an open market test of value.

Arguments of the Parties

Appellant's Arguments

• The Appellant submitted that the judge erred in making a Syers order because the authority Bahia v Sidhu requires "exceptional circumstances" before departing from the ordinary practice of ordering a sale, and the present case did not fall within the recognised categories identified in that decision.
• The Appellant contended that the alleged "proprietary estoppel-ish" equity was not made out on the facts.
• The Appellant argued that reliance on expert valuation to effect the buy-out was improper because an open market sale might achieve a higher price and the valuation evidence could not supplant the market test.

Respondent's / Other Submissions

• The trial judge and the Respondent relied on established authorities (including Syers v Syers and Bahia v Sidhu) but argued that Bahia does not exhaustively identify every circumstance in which a Syers order can be justified; a proprietary-estoppel-like equity can be a valid basis for such an order.
• The Respondent's evidence, as found by the trial judge, established an enduring understanding and detrimental reliance such that ordering a sale would have been unfair and unconscionable.
• On valuation, the Respondent relied on the expert valuation evidence as a reliable indication of market value and pointed to the saving in costs and other practical consequences of an open market sale which supported implementation by valuation.
• Attorney Pearce-Smith (identified in the opinion as appearing for the Respondent at some stages) argued that the trial judge had not properly addressed the individual requirements of proprietary estoppel (context of the 2005/2006 conversation, whether circumstances later made any understanding spent, whether there was genuine detriment, and whether the requisite unconscionability was established).

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Syers v Syers (1876) 1 App Cas 174	Illustrates that, in exceptional cases, the court may allow a partner who wishes to continue the business to acquire another partner's share at a valuation rather than by sale.	Accepted as the foundational authority for a non-sale remedy (a Syers order); the trial judge applied its principle to justify buy-out by valuation in the present factual context.
Bahia v Sidhu [2024] EWCA Civ 605, [2025] Ch 55	Explains that an open market sale is the normal practice on dissolution, identifies categories of "exceptional circumstances" where departures may be justified, and emphasises that departures are exceptional.	The court analysed Bahia closely. It held that Bahia's list are examples and do not preclude other circumstances (including a proprietor-estoppel-like equity) justifying a Syers order where justice requires it.
Hammond v Brearley [1992] 12 WLUK 185	Authority cited for the proposition that, where an open market sale will not maximise value, the court may permit acquisition by a co‑partner at valuation.	Referenced as supporting the proposition that Syers-type relief may be appropriate where a sale would not maximise value.
Thorner v Major [2009] UKHL 18, [2009] 1 WLR 776	Sets out the three principal elements of proprietary estoppel: representation/assurance, reliance, and detriment.	The court used Thorner’s articulation of estoppel elements in evaluating whether a proprietary-estoppel-like equity could justify a Syers order.
Gillett v Holt [2001] Ch 210	Emphasises that equity prevents unconscionable conduct and that the court must look at the matter in the round.	Cited to support the equitable underpinning of the proprietary estoppel analysis and the discretionary remedies available.
Guest v Guest [2022] UKSC 27, [2024] AC 833	Explains that, once an equity is established, the starting point is to fulfil the promise unless practicality or fairness require a different remedy; the aim is undoing or preventing unconscionable conduct.	Used to justify that an estoppel-based equity can lead to remedies that enforce expectations and that practical considerations may moderate relief.
Piglowska v Piglowski [1999] 1 WLR 1360	Court should read reasons on the assumption that the judge knew which matters to take into account; absence of express mention does not mean a matter was not considered.	Relied upon when addressing criticisms about the trial judge’s reasons and whether omitted points could be inferred to have been considered.
Henderson v Foxworth Investments Ltd [2014] UKSC 41, [2014] 1 WLR 2600	Standards for appellate interference with findings of fact — interference is limited unless judgment cannot reasonably be explained or there is identifiable error.	Applied to explain the appellate standard of review and to justify deference to the trial judge’s factual findings.
Volpi v Volpi [2022] EWCA Civ 464, [2022] 4 WLR 48	Appellate court may set aside factual conclusions only if they are rationally insupportable.	Used to reinforce the limited scope for disturbing evaluative factual findings by a trial judge.
In re Sprintroom [2019] EWCA Civ 932, [2019] 2 BCLC 617	On appeals challenging evaluative decisions, the appellate court must identify a logical flaw rather than re-weigh the evaluation afresh.	Applied to caution against substituting the appellate court’s evaluative judgment for that of the trial judge absent identifiable flaws.
R (on the application of R) v Chief Constable of Greater Manchester [2018] UKSC 47, [2018] 1 WLR 4079	Standard that an appellate court must identify gaps in logic or omissions that undermine a trial judge’s conclusion.	Referenced in relation to evaluating whether the trial judge’s reasoning was cogent.
D J & C Withers (Farms) Ltd v Ambic Equipment Ltd (and English v Emery Reimbold & Strick Ltd) [2002] 1 WLR 2409	Explains that an appellate court can reconstruct the judge’s reasoning when reasons are imperfect, provided the underlying material enables identification of cogent reasons.	Cited to support the court’s approach to reviewing a trial judge’s reasons and to justify upholding a decision where cogent reasons can be identified from the record.

Court's Reasoning and Analysis

The Court of Appeal undertook a multi-stage analysis:

1. Principles governing dissolution and realisation: The starting point is section 39 of the Partnership Act 1890 and the normal practice of ordering sale on the open market to maximise realised value. The court acknowledged established authorities that allow departures in exceptional circumstances (Syers and subsequent cases).
2. Scope of Bahia v Sidhu: The panel examined Bahia, which identified example categories of cases where departures may be justified. The appellate judge (Judge Newey) concluded that Bahia’s categories are examples, not an exhaustive code, and do not exclude other circumstances (including equitable considerations akin to proprietary estoppel) that would make an open market sale unfair.
3. Proprietary-estoppel-like equity: The court considered whether the trial judge had properly found a "proprietary estoppel-ish" equity. The trial judge had found (among other things) that: an earlier conversation gave rise to a shared understanding that the Respondent would be permitted to buy the Appellant out at a fair price; the Respondent devoted himself to developing the business in reliance on that understanding; the reliance produced a detriment of a kind sufficient to support an equity; and, in the round, an order for sale would be unfair and unjust.
4. Standards of appellate review: The Court reviewed the trial judge’s findings against established appellate principles (Henderson, Volpi, Sprintroom), emphasising deference to trial findings unless they were irrational or based on identifiable legal error. The appellate court concluded that the trial judge’s factual findings (including the credibility assessment of the Respondent) had adequate evidential basis and were not rationally insupportable.
5. Assessment of unconscionability and fairness: The trial judge had considered other practical factors (potential tax consequences, implications for a third-party majority shareholder of an associated company, and likely adverse effects on employees and the going concern) as supporting the conclusion that a sale would be unfair. The Court of Appeal accepted that these factors could legitimately feed into the assessment of whether equity arose and whether a Syers order was just.
6. Use of expert valuation: The trial judge relied on the valuation evidence of experienced valuers and added tolerances (including a 5% margin and rounding) as a realistic and reliable indicator of market value. The appellate court held that reliance on valuation evidence does not preclude a Syers order and that the mere possibility that an open market sale might produce a higher price was not an absolute bar to making a Syers order.

Holding and Implications

Holding: The Court of Appeal dismissed the appeal and upheld the trial judge’s order permitting a buy-out by valuation (a Syers order). The judges (Judge Newey, Judge Nugee and Judge Lewison) agreed in that result.

Implications and immediate consequences:

• The Syers order made by the trial judge stands and the Appellant remains subject to the buy-out procedure ordered by the High Court (implementation as set out in the judgment, including reliance on the expert valuation approach adopted by the trial judge).
• The Court affirmed that a proprietary-estoppel-like equity can, in appropriate circumstances, justify a Syers order as a departure from the normal practice of ordering an open market sale; Bahia v Sidhu provides illustrative categories but does not exhaust the possible equitable bases for departure.
• The decision underlines the appellate standard of review: the Court will defer to trial judges’ factual and evaluative findings unless they are irrational or there is an identifiable legal error; imperfectly expressed reasons will not automatically warrant reversal where the record enables the appellate court to identify cogent grounds for the decision.
• The opinion did not purport to lay down a closed list of circumstances warranting Syers relief; rather it confirmed that equitable considerations (including expectations and detrimental reliance) may be relevant to the exercise of the court’s discretion under section 39 of the Partnership Act 1890.

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