Secure usable employment space at Tipner West alongside its homes

The problem and who is affected

Tipner West is one of the few large sites left for industrial jobs on Portsea Island. The plan under examination expects about 1,000 homes and 25,000 m² of employment space, but the delivery table puts homes from 2030 and employment space mainly in 2035 to 2040, with some after 2040. Without Tipner, the city would fall about 27,700 m² short of its industrial space need. The site has an estimated £107m funding gap, and more employment space makes that gap bigger.

Who is affected: People seeking skilled industrial, marine and manufacturing jobs in north Portsmouth; local firms needing modern workspace; future Tipner West residents; and taxpayers if public money is used to close the funding gap.

What this would change

Aim: Deliver usable employment space at Tipner West at a pace that keeps up with its homes, so the site adds jobs as well as housing.

What success would mean: Each housing phase is matched by an agreed amount of serviced, lettable employment floorspace, reported once built and once occupied. Any phasing ratio would be a proposal for testing through viability work, not an evidenced target.

Ask the council, as landowner and planning authority, to set out how employment space will be phased with homes. As landowner it can write employment milestones into any disposal or development agreement. As planning authority it can require a site-wide phasing and sequencing strategy under Policy PLP3 part 7, backed by conditions or a planning obligation that meets the legal tests. Test realistic options, including serviced employment plots in phase 1, before setting any requirement. Report employment floorspace permitted, completed and occupied at Tipner West alongside homes in the annual monitoring report.

Proposed lead: Portsmouth City Council, as site promoter and as local planning authority acting separately (proposed). Partners: Homes England (funding and delivery options), Hampshire and the Solent Combined County Authority (possible funding from 2028), Environment Agency and Coastal Partners (sea defences), Natural England and the Tipner West Regulatory Panel (habitats), Portsmouth International Port, University of Portsmouth and local marine employers (demand testing), A future development partner.

Powers: Planning conditions must be necessary, relevant, precise, enforceable and reasonable, and cannot require payments or the transfer of land (nppf-2026, policy DM6). Planning obligations can only be a reason to grant permission if necessary, directly related and fairly and reasonably related to the development (cil-reg-122). Policy PLP3 part 7 already requires phasing and sequencing strategies for all proposals (pcc-addendum-2025). As freehold owner since January 2024, the council can also set delivery milestones in disposal or partnership contracts (pcc-tipner-delivery-approach). These powers cannot create demand for workspace, and a requirement that makes the scheme unviable may stall homes as well as jobs.

Options

• Current approach: Current approach: allocation with a site-wide phasing strategy. Policy PLP3 allocates about 25,000 m² employment and 1,000 homes, requires a masterplan, design code and phasing strategy, and lists employment for 2035 to 2040 in its monitoring table. Delivery depends on closing the funding gap with Homes England and others.
• Proposed response: Tie employment milestones to housing phases through disposal terms and planning obligations. Agree serviced employment plots or a share of floorspace before a set number of homes are occupied, secured in the development agreement and, where lawful, by condition or planning obligation. Test the viability effect first.
• Proposed response: Early serviced employment land in phase 1. Prepare and service employment plots, for example near the listed buildings in the north of the site, in the first phase, so that firms can build when demand exists. The council’s own March 2026 programme already suggests about 10,000 m² in years 5 to 10.
• Alternative: Monitor and review rather than condition. Rely on annual monitoring and a policy review trigger if employment slips behind homes, avoiding extra cost or delay to housing.
• Alternative: Relocate some industrial space need elsewhere. Seek other sites, such as Land West of Portsdown Technology Park or intensified industrial estates, if Tipner West employment proves unviable. No alternative site of this scale was identified in the plan.

The council’s optioneering found that more employment space increases the funding gap (employment-led option about £174m against £107m). A strict sequencing requirement could therefore slow homes. Demand for marine space at Tipner may also be weaker than the 2021 study assumed, because the current policy has no deep-water access. Market testing, viability and the inspectors’ findings could change the preferred option.

Delivery plan

A first practical step: Before the 19 November 2026 hearing, the council could publish a one-page note explaining how employment space will be phased with homes and what would trigger action if it slips.

Costs and funding

One-off costs

Not costed. Market testing and viability work would cost consultancy and officer time.

Recurring costs

Not costed. Monitoring is part of existing annual reporting.

Capital or revenue

Market testing, viability and monitoring: revenue. Servicing employment plots early: capital, part of the wider site funding gap.

Funding status

No public funding committed for Tipner West delivery. The council says it is discussing funding with Homes England and may seek combined authority funding from April 2028.

Affordability

The site already has an estimated funding gap of about £107m. Bringing employment forward could increase early costs.

Costing still needed

Price the cost of servicing employment plots in phase 1, the effect on land value and gap funding, and compare with the residential-led baseline using the same assumptions as the council’s optioneering.

Benefits, risks and trade-offs

Possible benefits: Keeps open the chance of industrial and marine jobs on the island, and avoids homes being completed while the employment land stays empty. Not quantified; jobs numbers are not estimated here.

Risks:

• A strict sequencing rule could make the scheme unviable and delay homes.
• Demand for industrial or marine space at Tipner may be weaker without deep-water access.
• Habitat mitigation for the bird support area and the bridge could add cost and delay.
• Leaseholders, including the Harbour School, must be relocated first; the council estimates five or more years.
• Conditions or obligations that fail legal tests could be overturned on appeal.

Who could gain or lose: Industrial jobs could benefit residents without degrees in north Portsmouth. If homes are delayed by employment requirements, households needing homes lose out. Public money used to close the gap is a cost to taxpayers.

Environment: The site lies next to Portsmouth Harbour SPA, Ramsar site and SSSI and the Solent and Dorset Coast SPA. Development will lose part of a primary support area for waders and brent geese (about 6.66 ha), needing replacement habitat. Parts of the site are in flood zones 2 and 3 and need new sea defences and land raising. One bridge option could also affect Chichester and Langstone Harbours SPA and Ramsar.

Capacity: The council promoter team, the planning authority and Homes England teams must work in parallel. The council’s evidence library lists separate planning-authority handling arrangements for Tipner West (July 2025), meant to keep its landowner and planning roles apart; the document itself was not reviewed here. Staff capacity was not assessed.

How to judge progress

Reassess when: Reassess after the inspectors report on Policy PLP3, when Homes England decides on a business case, or when a planning application for Tipner West is submitted.

Where things stand

What is known:

• The submitted policy allocates about 25,000 m² employment and 1,000 homes at Tipner West.
• The council owns the freehold but leaseholders, including the Harbour School, remain.
• The funding gap is estimated at about £107m and no public funding is committed.
• The plan’s monitoring table puts employment space mainly in 2035 to 2040, after the first homes.
• Tipner West is about a third of the city’s planned industrial floorspace supply.

What is not known:

• Whether there is enough demand for industrial or marine space at Tipner without deep-water access.
• How much employment space could be serviced in phase 1 and at what cost.
• Whether the inspectors will modify Policy PLP3 on phasing.
• The cost of the bridge options other than the discounted £25m to £30m option.
• How many jobs the space would support.

Decisions needed:

• Whether employment milestones are written into the disposal and delivery strategy.
• Whether to seek phasing obligations in an outline or hybrid permission.
• Whether to fund early servicing of employment land.

Existing work:

• Policy PLP3: Tipner West (Local Plan Addendum): Under examination; hearing scheduled for 19 November 2026 (as of 2026-10-21).
• Tipner West Regeneration Delivery Approach: March 2026 paper; Homes England agreed to explore delivery options; disposal and delivery strategy to follow (as of 2026-03).
• Tipner Bridge feasibility and habitat risk assessment: Feasibility study (September 2025) and high-level Habitats Regulations risk assessment (September 2026); all three options carry a risk of adverse effect (as of 2026-09).
• Council funding talks with Homes England: Meeting scheduled for October 2026, according to the council’s September 2026 statement; outcome not published (as of 2026-09-18).

Next review: When the inspectors publish findings on Policy PLP3 after the 19 November 2026 hearing.. Evidence last checked 2026-11-02.

Sources

Where earlier ideas went

• tipner-marine-jobs (earlier ten suggestions): restored. This action, with a new stable ID. The sequencing idea is kept and tested against viability evidence; options now include contract milestones, phasing obligations, early serviced plots and monitoring. Not carried forward: The 58,000 m² figure (it was the 2024 draft; the submitted policy says about 25,000 m²); the claim that this has no public cost (the council estimates a £107m gap and more employment raises it); the status ‘Under discussion’ (no evidence of discussion of this specific proposal).