The seat of the arbitration, and the place a hearing happens

The seat is a legal designation

The Arbitration Act 1996 defines “the seat of the arbitration” as “the juridical seat of the arbitration”. The word the statute uses is juridical: a legal designation, not a venue. The parties may designate it, so may any arbitral or other institution or person they vest with powers in that regard, and so may the tribunal if the parties authorise it; absent any designation it is determined having regard to the parties’ agreement and all the relevant circumstances (s 3). The Model Law reaches the same place from the other side: the parties are free to agree the place of arbitration, and failing agreement the tribunal determines it having regard to the circumstances of the case (art 20(1)).^1,3

Part of why the two ideas run together is that the instruments do not share one word for them. The Act says seat. The Model Law and the UNCITRAL Arbitration Rules both say place of arbitration, and the ICC provision is headed Place of the Arbitration, while the Model Law then uses the same word for the other thing, letting a tribunal meet at any place it considers appropriate. The LCIA Rules separate them in the heading: article 16 is headed “Seat of Arbitration, Place(s) of Hearing and Applicable Law”.^1,3,6,7,8

What the seat fixes

The seat decides which national arbitration law governs the proceedings. Under Model Law article 1(2) the Law applies, with named exceptions, only if the place of arbitration is in the territory of the enacting State. The secretariat Explanatory Note gives the reason: in most legal systems the place of arbitration is the exclusive criterion for determining the applicability of national law. The Note adds that the territorial criterion is of considerable practical importance in respect of articles 11, 13, 14, 16, 27 and 34, “which entrust State courts at the place of arbitration with functions of supervision and assistance to arbitration”. Supervision and assistance sit with the courts at the seat, and the seat is what puts them there.¹

Which court can set the award aside

Article 34 of the Model Law never says “the court of the seat”. Three provisions make the link instead. Article 1(2) applies the Law only where the place of arbitration is in that State. Article 6 is where each enacting State names the competent court for these functions. And the Explanatory Note lists article 34 among the articles that entrust State courts at the place of arbitration with supervision and assistance. So the court that can annul an award is fixed by the seat, not named in the setting-aside article. For the grounds themselves and the clock they run against, see enforcing and challenging an award.¹

The award’s nationality for enforcement

The seat also decides what the award is, as a matter of enforcement. The New York Convention applies to awards made in the territory of a State other than the one where recognition and enforcement are sought, and to awards not treated as domestic in the State where enforcement is sought (art I(1)). It then attaches consequences to that place. Recognition and enforcement may be refused, at the request of the party against whom the award is invoked, on proof that the award “has been set aside or suspended by a competent authority of the country in which, or under the law of which, that award was made” (art V(1)(e)).²

Two further grounds point the same way. Article V(1)(d) measures the arbitral procedure, failing party agreement, against the law of the country where the arbitration took place, and article V(1)(a) tests the arbitration agreement, failing any indication of chosen law, under the law of the country where the award was made. Article VI then lets an enforcing authority adjourn its decision, and order suitable security, where a setting-aside or suspension application has been made to a competent authority referred to in article V(1)(e).²

The tribunal may meet anywhere

None of that constrains where people actually sit. Model Law article 20(2) separates the two ideas: notwithstanding the provision fixing the place of arbitration, the tribunal may, “unless otherwise agreed by the parties, meet at any place it considers appropriate for consultation among its members, for hearing witnesses, experts or the parties, or for inspection of goods, other property or documents”. The Explanatory Note reads it the same way: the territorial criterion does not limit the tribunal’s ability to meet where it considers appropriate for the conduct of the proceedings. The UNCITRAL, ICC and LCIA Rules each carry a version of the same permission, set out in the table below.¹

The LCIA Rules state the consequence. A tribunal may hold an in-person hearing at any convenient geographical place in consultation with the parties, and where a hearing or deliberation happens away from the seat, or otherwise than in person in whole or in part, “the arbitration shall nonetheless be treated for all purposes as an arbitration conducted at the arbitral seat and any order or award as having been made at that seat” (art 16.3). A hearing held remotely, or in a third city because that is where the witnesses are, changes nothing about the seat.⁶

The award states the seat and is deemed made there

The award is where the designation becomes a matter of record. Model Law article 31(3) requires the award to state its date and the place of arbitration as determined under article 20(1), and provides that “The award shall be deemed to have been made at that place.” The Explanatory Note explains the deeming: the final making of an award is a legal act that in practice does not necessarily coincide with one factual event, so deliberations may be held at various places, by telephone or correspondence, and the award does not have to be signed by the arbitrators physically gathering at the same place.¹

The Arbitration Act 1996 puts the same rule as a flat statutory statement. Unless the parties otherwise agree, where the seat is in England and Wales or Northern Ireland, any award in the proceedings “shall be treated as made there, regardless of where it was signed, despatched or delivered to any of the parties” (s 53). Where the paper was signed or posted is a fact about the paper. The UNCITRAL and ICC Rules carry the same deeming, and the place of arbitration is a mandatory content element of the award rather than an optional recital.^5,7,9

The seat is where an arbitration legally belongs. The hearing venue is where people meet. Moving the second does not move the first, and the award records the first.

Who fixes the seat when the parties have not

For an administering body this is a live decision, not a background fact. Under the current ICC Rules, if the parties have not agreed on the place of arbitration the Court fixes it (art 19(1)): the institution itself decides. The LCIA Rules take the other route and supply a default, making the seat London unless the tribunal orders that another seat is more appropriate (art 16.2); the parties may agree the seat in writing at any time before the tribunal is formed, and afterwards with the tribunal’s prior written consent (art 16.1). The Arbitration Act 1996 anticipates this by naming an institution or person the parties empower as one of the bodies that can designate the juridical seat (s 3).^3,6,9

What an institution records about the seat

Under the ICC Rules in force for cases commenced on or after 1 June 2026, the seat runs through the file from the start. The Request must contain all relevant particulars and any observations or proposals as to the place of the arbitration (art 5(3)(h)). If the parties have not agreed on it, the Court fixes it (art 19(1)). The tribunal holds an initial case management conference within 30 days of receiving the file from the Secretariat (art 24(1)), and the award is deemed to be made at the place of the arbitration and on the date stated in it (art 35(3)). The Secretariat retains all awards and decisions of the Court in the Court archives (Appendix II, art 5(1)).⁹

For cases commenced before that date the 2021 Rules still apply, and they put the seat in a signed case document too. The tribunal drew up Terms of Reference as soon as it received the file; that document had to contain the place of the arbitration among its seven particulars (art 23(1)(f)) and was signed by the parties and the tribunal (art 23(2)). The 2026 Rules remove that requirement and replace the old archive provision with a retention article: documents submitted by the parties or the arbitrators are destroyed unless one of the listed exceptions applies (Appendix II, art 5(2)). So for a new case the seat is carried by the Request, the Court’s decision and the award.^8,9

Citing the right ICC edition

• The place of the arbitration is article 19 in the 2026 Rules, not article 18, which is now Party Representation. The deeming provision moved from article 32(3) to article 35(3), and the expeditious-conduct provision from article 22(1) to article 23(1).
• The 2026 Rules “apply to any arbitration that is commenced on or after 1 June 2026, unless the parties have agreed to submit to the Rules in effect on an earlier date” (art 1(2)), so cases commenced between 1 January 2021 and 1 June 2026 still run on the 2021 numbering.^8,9

The seat is a rulebook field, not a note in a file

Every consequence above follows from one entry: which place was designated, by whom, and under which rule. If the rulebook gives the institution power to fix the seat, the record has to show the institution exercising it; if the parties agreed it, the record has to show the agreement and its date. The hearing venue belongs in the same record, in a different field, because it carries none of the same consequences. That is the ordinary shape of administering cases on your own rulebook. It is what enforcing and challenging an award later tests, and part of what a party picks when it chooses a seat such as London: see arbitration in London.^1,2,3