Project record

Langstone Coastal Defence Scheme

Participation
Awarded
Participation checked

Jackson is appointed; April 2027 main construction is planned, with the programme under refinement and signed terms and consent documents outstanding

Participation source

Havant Borough Council announced Jackson Civil Engineering's appointment on 26 June 2026 for Langstone's approximately one-kilometre coastal-defence scheme. The UK6 decision selected Jackson at GBP 14 million excluding VAT, GBP 16.8 million including VAT; the council's separate GBP 23.6 million figure describes the wider programme. Coastal Partners' August update retains an April 2027 main construction target and says Jackson is refining a programme intended to finish in under one year through concurrent work across five frontages. It reports selected vegetation clearance and supervised reptile relocation completed that week. Actual signed terms, final planning and MMO licence documents, approved programme, installed defence quantities and acceptance remain outstanding in this record.

Langstone waterfront at the Royal Oak showing an owner-published visual example of the proposed coastal defence treatment

Coastal Partners; owner-published Langstone defence visualization, not an issued-for-construction drawing or progress photograph

Location

United Kingdom / Europe

Segment

Continuous tidal flood and coastal erosion defence with early contractor involvement

Phase

Award / Confirmed

Last checked

14 October 2026

Coverage

Related sectors

Continuous tidal flood and coastal erosion defence with early contractor involvement is the primary work classification. Related sectors connect this record to adjacent marine delivery and market coverage.

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

Project anatomy

Contract scope and delivery roles

Client / authority
Havant Borough Council, delivered through Coastal Partners with Environment Agency and local-authority funding
Procurement references
APP/25/00162; ocds-h6vhtk-0585fc; 040737-2026
Delivery parties
Jackson Civil Engineering Ltd - owner-confirmed appointed contractor; actual signed terms not obtained, Sheet piling, reinforced concrete, flood glass, gates, earthworks, survey, ecology, traffic, marine plant and other lower-tier suppliers - publicly unnamed
Contract route
Havant used a two-stage competitive flexible procedure under the Procurement Act 2023, initially shortlisting three to five suppliers before invitation to tender. The published weighting was 50% price and 50% combined quality and social value. Delivery is based on NEC4 Engineering and Construction Contract Option C target cost with X22 Early Contractor Involvement and a pain/gain mechanism. The 1 May 2026 UK6 release selected Jackson at GBP 14 million excluding VAT, but recorded the contract as pending and estimated signature for 31 May 2026. The official history retains the pending UK6 award and scheduled signature, with no actual signed-contract object. Havant separately confirmed Jackson's appointment on 26 June; the statement does not supply a signature date or executed terms. Planning application reference APP/25/00162.
Execution window
The UK6 award estimates an administrative period from 1 June 2026 to 3 December 2029. The earlier owner programme envisaged April-November construction seasons in 2027 and 2028. Coastal Partners' August update instead describes Jackson refining an intended under-one-year programme from an April 2027 main start, with concurrent activities across five frontages. The accepted programme and final completion date remain unconfirmed. Selected vegetation clearance and supervised reptile relocation were reported completed in August; main defence construction, installed quantities and sectional acceptance remain separate.
Works package
Construct approximately one kilometre of continuous defences along the Langstone frontage. Published scope includes earth raising, flood embankments, reinforced-concrete flood walls, sheet-piled walls, flood glass, flood gates and demountable defences, plus raised and realigned footpaths and cycleways, highway alterations, landscaping, tree work, ecological improvements, temporary compounds, access and associated works. The core scheme and any additional privately funded frontage must remain distinct until affordability and contract instructions are published.
Marine interfaces
The alignment sits between Langstone and Chichester Harbours in a constrained tidal frontage with conservation areas, listed buildings, protected habitats and the A3023, the only highway access to Hayling Island. Planning material identifies permanent intertidal habitat loss and temporary construction effects requiring mitigation and strategic habitat compensation. Work methods must resolve tide and weather windows, narrow access, buried utilities, public routes, harbour ecology and overwintering-bird restrictions.
Commercial evidence boundary
The UK6 selected value is GBP 14 million excluding VAT and GBP 16.8 million including VAT. Havant's 26 June account describes a separate GBP 23.6 million overall scheme. Coastal Partners reports GBP 17 million of Environment Agency investment, GBP 1 million from the Southern Regional Flood and Coastal Committee, GBP 5.1 million from Havant and GBP 250,000 from Hampshire County Council, with GBP 1.4 million dedicated to biodiversity enhancement. These figures retain their programme, funding and selected-contract scopes; actual payments and expenditure are unconfirmed.

Project timeline

Material developments

Dated events that changed scope, counterparties, delivery, commissioning or operating status.

Open this project in the Change Log

Owner reports enabling work and a shorter programme under refinement

Coastal Partners reports selected vegetation clearance and supervised reptile relocation completed that week, while Jackson develops an intended under-one-year programme from April 2027 across five frontages. Main construction, approved programme and accepted defence quantities remain separate.

Source

Havant confirms Jackson's appointment

The council announces the appointed contractor after completed supplier procurement, records conditional committee approval and describes a GBP 23.6 million scheme distinct from the UK6 selected value.

Source

Planning officers recommend conditional permission

The committee report recommends granting APP/25/00162 subject to conditions after assessing habitat, heritage, access and amenity effects. A recommendation is not the final decision notice or discharge of conditions.

Source

Jackson selected for the GBP 14 million contract

The UK6 award notice names Jackson Civil Engineering, records a GBP 14 million excluding-VAT value and estimates a 31 May signature, while keeping the contract pending.

Source

Pre-construction survey campaign begins

Coastal Partners scheduled LiDAR, ground-level and underground-utility surveys to update design information. Survey activity does not establish construction mobilisation.

Source

Owner reports the wider funding package

Coastal Partners reported GBP 17 million of Environment Agency investment plus three local contributions and a GBP 1.4 million biodiversity allocation, distinct from the later Jackson award value.

Source

Compliant competitive flexible procedure opens

The retender established the NEC4 Option C and X22 ECI route, one-kilometre scope, bidder requirements and 50:50 price-quality split after the earlier procurement was restarted.

Source

Evidence gap

What remains unverified

Outstanding evidence

  • Contract-details notice or owner confirmation of NEC4 execution
  • Final planning decision for APP/25/00162 and condition schedule
  • Marine Management Organisation licence and related environmental consents
  • ECI start, accepted programme, target cost and buildability changes
  • Core-scheme affordability and any separately funded private frontages
  • Sheet-pile, concrete, flood-glass, gate, earthworks and temporary-works packages
  • Named lower-tier suppliers and the boundary between council appointments and Jackson's supply chain
  • Accepted construction programme, April 2027 mobilisation, installed quantities, sectional acceptance and confirmed completion dates

Related records 2

Reporting status

Project phase
Award
Evidence confidence
Confirmed
Last checked
14 October 2026
Cited sources
9

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Source collections

Project sources 9