- BY Kevin Barry BSc(Hons) MRICS
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One Constituency, Both Slipways: What the 2023 Boundary Changes Mean for Strangford in May 2027
Strangford Lough Crossing Campaign | Kevin Barry BSc(Hons) MRICS, Campaign Lead | 20 October 2026
The short version
For the first time since the Assembly constituencies were drawn, both ends of the Strangford Ferry, Portaferry and Strangford village, will sit inside the same Assembly constituency when Northern Ireland votes on Thursday 6 May 2027.
That is not a political opinion. It is a matter of boundary law. This post sets out what changed, where the change is recorded, and what the published electoral analysis does, and does not, say about the likely effect on the count.
1. What changed, and when it applies to the Assembly
The Boundary Commission for Northern Ireland submitted its final report to the Speaker of the House of Commons on 27 June 2023. The Parliamentary Constituencies Order 2023 was approved by the Privy Council on 15 November 2023 and came into force on 29 November 2023.
Source: Boundary Commission for Northern Ireland, “The 2023 Review of Parliamentary Constituencies”, boundarycommission.org.uk.
The new boundaries were first used at the Westminster general election of 4 July 2024. They have not yet been used for the Assembly, because Section 33 of the Northern Ireland Act 1998 provides that MLAs are returned for the parliamentary constituencies, and no Assembly election has been held since. The Commission’s own report draws attention to that statutory link.
Source: Boundary Commission for Northern Ireland, “Final Recommendations Report of the 2023 Review of Parliamentary Constituencies”, June 2023, ISBN 978-1-5286-4069-5, Chapter 1, paragraph 7.
The Assembly’s own Research and Information Service confirms that the current Assembly still reflects the pre-review boundaries, and that the May 2027 election will be held on the updated constituencies.
Source: Northern Ireland Assembly Research and Information Service, “Constituency boundaries”, Research Matters, 10 August 2026; and James Bamford, “Briefing Note: Changes made to Northern Ireland parliamentary constituency areas”, NIAR Research and Information Service, 10 August 2026.
The election date follows Section 7 of the Northern Ireland (Miscellaneous Provisions) Act 2014: the first Thursday in May of the fifth calendar year after the last election (5 May 2022). That is Thursday 6 May 2027, unless the Assembly is dissolved early. (Readers should note that at least one election website has listed 7 May 2027; that date falls on a Friday and is incorrect.)
2. The Strangford changes, ward by ward
The following is drawn directly from the Assembly Research and Information Service briefing note of 10 August 2026 (James Bamford, NIAR), cross-checked against the Commission’s Final Recommendations Report (June 2023).
Wards added to Strangford
| Ward | Previously | Now |
|---|---|---|
| Drumaness | Wholly in South Down | Wholly in Strangford |
| Strangford | Wholly in South Down | Wholly in Strangford |
| Glen | Split with North Down | Wholly in Strangford |
| Derryboy | Split with South Down | Wholly in Strangford |
| Crossgar and Killyleagh | Split with South Down | Wholly in Strangford |
| Quoile | Wholly in South Down | Split along the River Quoile |
| Ballyward | Split with South Down | Still split, along the Dromara Road |
Wards removed from Strangford
| Ward | Previously | Now |
|---|---|---|
| Saintfield | Wholly in Strangford | Belfast South and Mid Down |
| Carryduff East | Split with Belfast South | Belfast South and Mid Down |
| Moneyreagh | Split with Belfast South | Belfast South and Mid Down |
| Knockbracken | Split with Belfast South | Belfast South and Mid Down |
| Ballygrainey | Split with North Down | North Down |
Unchanged: Carrowdore and Loughries remain split with North Down along the existing line, because each spans the full width of the Ards Peninsula.
Why the Strangford ward matters to this campaign
The Strangford ward is the ward containing Strangford village and the southern ferry slipway. The SDLP South Down Association’s published representation to the Commission listed the settlements affected by moving the ward, including Strangford village, Saul, Ballyhornan and Kilclief.
Source: SDLP South Down Association, third-stage consultation representation, “Recommendations for the Revised 2023 Review of Parliamentary Constituencies”, published by the Boundary Commission for Northern Ireland.
Two decades ago, the ARK elections analyst Nicholas Whyte remarked that it was odd that the town and ward of Strangford lay outside the constituency bearing its name. From May 2027, at Assembly level, that oddity ends.
Source: Nicholas Whyte, “2004 Boundary Commission: Provisional recommendations”, ARK Northern Ireland Elections, ark.ac.uk.
A note on conflicting secondary sources. One published constituency profile states that most of the Strangford ward is “now back in South Down”; the same firm’s South Down profile states the opposite, that the ward was lost to Strangford. The Assembly research briefing and the Commission’s revised and final proposals both place the Strangford ward in the Strangford constituency. We rely on the primary sources.
Sources: Brown O’Connor, “#GE24 Constituency Profile: Strangford”, 5 June 2024, and “#GE24 Constituency Profile: South Down”, 27 June 2024.
Who the change brings in, and who it takes out
ARK’s analysis estimates that Strangford lost about 6,000 electors, mainly in Saintfield, to Belfast South and Mid Down, and gained about 9,000 around Downpatrick from South Down. Whyte describes this as the largest shift in party support of any Northern Ireland constituency in the review. The electorate at the July 2024 general election was 74,525.
Source: Nicholas Whyte, “Strangford”, ARK Northern Ireland Elections, ark.ac.uk/elections/astr.htm; and Nicholas Whyte, “The new Northern Ireland constituencies”, From the Heart of Europe, 11 February 2024.
3. The last Assembly result, on the old boundaries
For reference, the 5 May 2022 Assembly result in Strangford (five seats; electorate 70,775; turnout 58.4%, the lowest in Northern Ireland; quota 6,811):
| Party | First preferences | Share | Seats |
|---|---|---|---|
| DUP | 14,618 | 35.8% | 2 |
| Alliance | 9,837 | 24.1% | 2 |
| UUP | 6,228 | 15.2% | 1 |
| TUV | 5,186 | 12.7% | 0 |
| SDLP | 2,440 | 6.0% | 0 |
| Sinn Féin | 1,607 | 3.9% | 0 |
| Green | 831 | 2.0% | 0 |
| Independent | 118 | 0.3% | 0 |
The final seat went to Alliance’s Nick Mathison, ahead of the TUV’s Stephen Cooper, by under 250 votes, after SDLP transfers on the last count.
Source: Nicholas Whyte and Conal Kelly, “Strangford”, ARK Northern Ireland Elections, ark.ac.uk/elections/astr.htm, citing the Electoral Office for Northern Ireland declared result.
Combined nationalist first preferences in 2022 were 9.9%, well short of the 16.7% needed for a seat in a five-seat count.
4. What the published analysis says about May 2027
We set out below what three independent analysts have published. We draw no conclusion of our own on party outcomes. These are notional figures, and every analyst cited is careful to say so.
(a) Notional 2019 Westminster votes on the new boundaries (ARK / Rallings and Thrasher)
| Party | Actual 2019 (old) | Notional 2019 (new) | Change |
|---|---|---|---|
| DUP | 47.2% | 40.5% | -6.7 |
| Alliance | 28.4% | 26.2% | -2.1 |
| SDLP | 5.3% | 10.0% | +4.7 |
| UUP | 10.7% | 9.2% | -1.5 |
| Sinn Féin | 1.5% | 7.6% | +6.1 |
| Conservative | 3.9% | 3.4% | -0.6 |
Whyte’s assessment is that the nationalist share rises by more than ten points and now exceeds an Assembly quota, and that whichever nationalist party finishes ahead of the other would have a good chance of a seat.
Source: Nicholas Whyte, “The new Northern Ireland constituencies”, From the Heart of Europe, 11 February 2024 (Northern Ireland component of the Rallings and Thrasher notional results).
(b) The 2024 Westminster result on the new boundaries (actual)
| Candidate (Party) | Votes | Share |
|---|---|---|
| Jim Shannon (DUP) | 15,559 | 40.0% |
| Michelle Guy (Alliance) | 10,428 | 26.8% |
| Richard Smart (UUP) | 3,941 | 10.1% |
| Ron McDowell (TUV) | 3,143 | 8.1% |
| Noel Sands (Sinn Féin) | 2,793 | 7.2% |
| Will Polland (SDLP) | 1,783 | 4.6% |
| Others | 1,262 | 3.2% |
Turnout 52.4%. On these actual votes, Whyte projects that a five-seat Assembly count would return DUP 2, Alliance 2, UUP 1, the same as 2022. He records that, contrary to his own expectation, it was the overall unionist vote that rose here rather than the nationalist vote.
Source: Nicholas Whyte, “Strangford”, ARK Northern Ireland Elections, ark.ac.uk/elections/astr.htm.
Campaign arithmetic (not independently verified): on the 2024 votes, combined Sinn Féin and SDLP first preferences of 4,576 equal about 0.71 of a five-seat quota. Westminster votes are shaped by tactical voting and are an imperfect guide to an STV Assembly count.
(c) The 2023 council votes projected onto the new boundaries (Slugger O’Toole)
Michael Hehir’s analysis of the May 2023 council votes concludes that, on the new boundaries, nationalists would be well over a quota; that two DUP seats, one UUP and one Alliance look secure; and that the final seat would be contested between Alliance’s second candidate and Sinn Féin, with the advantage to Alliance. He notes that the outcome would change if the SDLP outpolled Sinn Féin, and states plainly that his work is an analysis of council votes and not a prediction.
Source: Michael Hehir, “What the council votes say about the next Assembly and Westminster elections: Strangford, U Bann, W Tyrone plus NI summary”, Slugger O’Toole, 29 June 2023.
What all three agree on
- The boundary change materially increases the nationalist vote within Strangford.
- Whether that converts into a seat depends on turnout, on which nationalist party leads, and on transfers.
- The fifth seat is the one in play. In 2022 it was decided by fewer than 250 votes.
5. The field so far
Two of the five sitting Strangford MLAs have announced they will not stand again:
- Mike Nesbitt MLA (UUP), Health Minister, announced on 2 January 2026 that he was stepping down as UUP leader and signalled his intention to retire at the end of the current term. Source: ITV News UTV, “Mike Nesbitt is to step down as leader of the Ulster Unionist Party”, 2 January 2026.
- Kellie Armstrong MLA (Alliance), first elected in 2016 and topping the poll in 2022, announced her retirement on 24 April 2026. Source: BBC News, “Alliance’s Armstrong to step down from politics next year”, 24 April 2026.
Candidates reported as selected at the date of writing include Nick Mathison MLA and Vicky Moore (Alliance), Richard Smart (UUP, selected September 2026), Jonathan Jackson (TUV) and Gareth Burns (Independent). Sources: Belfast Telegraph, “UUP selects Richard Smart as Strangford candidate for Assembly election”, 17 September 2026; candidate list compiled at Wikipedia, “Next Northern Ireland Assembly election”, accessed 20 October 2026. This list is incomplete and will change; selections by the DUP, Sinn Féin and the SDLP had not been reported in that compilation at the time of writing.
With two retirements and a redrawn electorate, at least two of Strangford’s five seats will be filled by someone new in May 2027.
6. Why this matters for the crossing
Until now, the Strangford Narrows has been a constituency boundary as well as a stretch of water. Portaferry has been represented by Strangford MLAs; Strangford village by South Down MLAs. Each set of representatives answered for one slipway.
From 6 May 2027, all five Strangford MLAs will represent both. The ferry, its subsidy (a recurring annual net cost of £2,090,000, DfI FOI response DFI-2024-0366), and the 46-mile road alternative that the Department itself acknowledges (DFI-2024-0412, memorandum by Mark McPeak, Divisional Roads Manager) become a single-constituency issue for the first time.
That changes the question a candidate can be asked on the doorstep. It is no longer “what will you do for your end of the ferry?” It is “what will you do for the crossing?”
The campaign’s ask remains singular and modest: a Ministerial direction to commission an independent, TAG-compliant feasibility study, at an estimated £250,000 to £500,000 depending on scope. It is not a commitment to build. It is a request for an honest answer.
Both councils on either shore have already passed resolutions in support (Ards and North Down Borough Council, March 2026; Newry, Mourne and Down District Council, April 2026). In May 2027 one set of five MLAs will speak for both shores.
What you can do
- Check your ward. The Assembly’s interactive map lets you confirm which constituency you will vote in next May: assemblyresearchmatters.org.
- Ask every candidate one question: will you support an independent feasibility study for a fixed Strangford Lough crossing?
- Read the evidence and download the MLA briefing at www.strangfordloughcrossing.org.
Not a bridge. Not a commitment. Just an honest answer.
Sources
- Boundary Commission for Northern Ireland, Final Recommendations Report of the 2023 Review of Parliamentary Constituencies, June 2023, ISBN 978-1-5286-4069-5.
- Boundary Commission for Northern Ireland, The 2023 Review of Parliamentary Constituencies (web page), boundarycommission.org.uk.
- Northern Ireland Assembly Research and Information Service (James Bamford), Briefing Note: Changes made to Northern Ireland parliamentary constituency areas, 10 August 2026.
- Northern Ireland Assembly Research and Information Service, Constituency boundaries, Research Matters, 10 August 2026.
- SDLP South Down Association, third-stage representation to the Boundary Commission for Northern Ireland, 2022.
- Nicholas Whyte and Conal Kelly, Strangford, ARK Northern Ireland Elections, ark.ac.uk/elections/astr.htm.
- Nicholas Whyte, The new Northern Ireland constituencies, From the Heart of Europe, 11 February 2024.
- Nicholas Whyte, 2004 Boundary Commission: Provisional recommendations, ARK Northern Ireland Elections.
- Michael Hehir, What the council votes say about the next Assembly and Westminster elections: Strangford, U Bann, W Tyrone plus NI summary, Slugger O’Toole, 29 June 2023.
- Brown O’Connor, #GE24 Constituency Profile: Strangford (5 June 2024) and South Down (27 June 2024).
- ITV News UTV, Mike Nesbitt is to step down as leader of the Ulster Unionist Party, 2 January 2026.
- BBC News, Alliance’s Armstrong to step down from politics next year, 24 April 2026.
- Belfast Telegraph, UUP selects Richard Smart as Strangford candidate for Assembly election, 17 September 2026.
- Department for Infrastructure, FOI response DFI-2024-0366; and DFI-2024-0412 attachment (McPeak memorandum).
- Northern Ireland Act 1998, s.33; Northern Ireland (Miscellaneous Provisions) Act 2014, s.7.
Every source above has been located and read; figures have been checked against the source cited. Notional electoral figures are the published estimates of the named analysts and are not predictions by this campaign. Campaign arithmetic is labelled as such.
Strangford Lough Crossing Campaign | www.strangfordloughcrossing.org | Quintin QS, Portaferry