GSE’s £120m Hythe Imperial Plan: 291 Homes, a 25m Pool — and a Planning File That Doesn’t Quite Add Up

GSE’s Imperial Gardens scheme promises 291 homes, around 73 “affordable homes”, a new 25m swimming pool and substantial private investment on Hythe seafront. But dig through planning application 26/1290/FH and the documents don’t always agree with one another — or, in some cases, with the development now being proposed.

GSE is offering Hythe something substantial. Its hybrid planning application covers roughly 17 hectares around the Hythe Imperial Hotel and golf course and seeks up to 291 homes, 25% “affordable housing”, 24 additional hotel bedrooms, eight serviced apartments, new spa facilities, a public gym and four-lane 25m swimming pool, a nine-hole academy golf course, adventure golf, splash park, public open space and wider landscaping and highway works. GSE’s own publicity valued the privately funded investment at £120m.

The applicant is GSE Property Group, according to Lichfields’ Planning Statement, which says the development will be delivered by GSE Group. GSE acquired the Hythe Imperial in 2008 and has already developed Imperial Green beside it. The Shepway Vox Team examined the wider GSE property, construction and hotel network last November.

There’s plenty in the proposal which could benefit Hythe.

The difficulty begins when you stop looking at the glossy offer and start reading the paperwork behind it.

A 25m pool that’s still 20m in some of the evidence

Take the swimming pool. GSE’s final Planning Statement says it’ll be 25 metres long. The project team says the applicant had “confirmed it will now deliver a 25m pool”, while the relevant drawing records the change rather more bluntly: “POOL [was] AMENDED FROM 20M TO 25M LENGTH”.

So far, so clear.

Except the Health Impact Assessment dated 4 August 2026 still concludes on the basis of a “new four lane 20m swimming pool”. The Flood Risk Assessment and Transport Assessment also describe a 20m pool. Maybe the extra five metres makes no material difference to those assessments. But that isn’t something councillors should be expected to take on trust: the technical authors should confirm whether occupancy, energy demand, water use, plant, drainage or trip assumptions remain valid for the scheme actually being determined.

Then there’s the arithmetic.

Planning Statement Table 6.4 gives 1,957sqm for the hotel extension, 1,207sqm for the leisure building and 605sqm for the clubhouse. Add them together and you get 3,769sqm. The table says 3,019sqm — an understatement of 750sqm. Elsewhere the clubhouse itself changes from 605sqm to 604sqm. A typo doesn’t sink a planning application, but FHDC ought to know whether that wrong total has travelled any further into parking, transport, energy, water or other calculations.

Flood levels don’t quite agree either: one document says 7.50m AODN, the detailed FRA says 7.30m.

On a Flood Zone 3 site, 200mm isn’t a figure to leave hanging.

Then the planning rulebook changed

There’s another problem which isn’t GSE’s doing.

Its principal Planning Statement is dated 5 August 2026. Twelve days later, on 17 August, the Government published a replacement National Planning Policy Framework. The new NPPF says its policies “must be taken into account in decision-making from the day of its publication”. GSE couldn’t assess final policy which hadn’t yet been published; FHDC, deciding the application afterwards, plainly has to.

That matters because this site is already protected by adopted local policy. Policy C3 safeguards existing mapped open space unless specified tests are met. The new national HC7 policy likewise protects existing sports and recreational land unless, amongst other routes, it is clearly surplus, properly replaced or alternative recreational provision clearly outweighs its loss.

So FHDC needs an updated policy assessment before councillors get anywhere near raising their hands for or against.

Hythe’s age profile changes the health argument

The dry planning paperwork becomes rather less dry when you look at who actually lives around the site.

GSE’s Health Impact Assessment defines a large “Local Impact Area” covering eight wards across Hythe and much of Folkestone. Across that combined geography, 23% of people are said to be aged 65 or over. But KCC’s latest 2024 ward estimate shows something dramatically different in Hythe itself: 4,270 of Hythe ward’s 11,080 residents are aged 65+ — about 38.5%.

That doesn’t make the HIA geography improper. An eight-ward statistical area can be perfectly legitimate for some purposes.

But it can also smooth away the very characteristic most relevant to Hythe.

Intriguingly, GSE itself accepts that point when assessing the proposed pool. Its Swimming Facility Need Assessment says Hythe has “a significantly higher proportion of older adults (55 years and over)” and concludes: “This age profile will influence swimming participation rates within Hythe’s catchment area”. If age changes the strength of the swimming case, it surely also deserves proper attention when assessing accessible housing, walking distances, flood evacuation, pollution vulnerability and healthcare.

And Hythe sits within a district which is getting older. KCC’s ONS-based projections put Folkestone & Hythe’s 65+ population at 28,000 in 2022, rising to 39,300 in 2047 — an increase of 40.3%. Total population is projected to rise by only 13.6%. Those are projections, not forecasts, and they aren’t available at Hythe town level, so it would be wrong to claim we know precisely how old Hythe will be in 2047. The direction of travel across the district, however, is unmistakable.

Then come the GPs.

The applicant’s own HIA records 17,536 patients across two practices within 3km and roughly six full-time-equivalent GPs — 2,974 patients per FTE GP. It describes that as “a large deficit in capacity across the local healthcare system”. With the development, its scenario raises the ratio to 3,076 and says this would “further exacerbate the existing capacity constraints”.

That isn’t merely background colour. The Environmental Statement classifies the healthcare effect before mitigation as Moderate Adverse and Significant. It only falls to Minor Adverse and Not Significant after a Section 106 contribution is assumed. Yet the draft heads of terms currently goes no further than “A proportionate S106 commitment towards local health services”. FHDC should know what NHS Kent and Medway actually wants before counting the mitigation as delivered.

What exactly is Hythe losing?

The golf and open-space argument is just as tangled.

GSE relies in part upon the 2017 Shepway Open Space Assessment. Yet its current Open Space Assessment acknowledges that golf courses weren’t included in that earlier audit and admits “the report does not provide justification for this”. The 2017 study can tell us something about the open-space categories it examined. It can’t, on its own, establish that golf-course provision was surplus when golf courses weren’t audited.

GSE has done separate work. It looked at golf facilities within a 30-minute drive, using journey times “calculated outside of peak hours”, and its own evidence says Hythe Imperial has the lowest membership price of the 18-hole courses in that catchment.

That’s where KCC Public Health becomes important.

Its 2025 work on physical activity identifies “Membership fees and cost”, the “Need to be a member to use facilities”, transport and lack of suitable local activities amongst barriers to people being active. With roughly 38.5% of Hythe ward already aged 65+, another golf course being half an hour away by car doesn’t automatically make it equally accessible.

Yet the replacement offer is significant. GSE proposes academy golf, adventure golf, new public space and, crucially, the 25m pool. KCC Public Health says aquatic activity has “enormous potential to support population health”, particularly because it can be suitable for people unable to manage other forms of exercise.

So the pool strengthens GSE’s case.

It also makes the small print matter. GSE says Ashridge Leisure, part of GSE Group, would operate the facility, with membership and pay-to-enter options alongside lessons and classes. If public-health benefits are being placed in the scales against the loss of existing recreation, FHDC should secure affordable public access, concessions, school use and long-term availability rather than leave them as promises in supporting documents.

The Royal Military Canal, archaeology and flood water

Some issues can’t be tidied away as spreadsheet errors.

KCC’s archaeological adviser says its “key concern is no field evaluation has been undertaken on Site” and that there is “insufficient data regarding below-ground deposits and their archaeological potential”. GSE’s own archaeological report subsequently recommends trial trenching and geoarchaeological boreholes and says targeted investigation “could be carried out during the determination period”. Most tellingly, the Environmental Statement accepts that until intrusive work is done, a worst-case “Major Adverse (significant) effect could arise”.

The Royal Military Canal brings a genuine professional disagreement. KCC says the assessment underestimates the contribution made by the open canal-to-sea setting, calling it “a relatively rare survival”. GSE’s heritage evidence calls that contribution “limited, very low”. Its own Environmental Statement nevertheless predicts a Moderate Adverse Significant effect upon part of the Scheduled Monument.

Flooding also needs fair treatment. The FRA says the proposed homes and northern access can achieve safe access in the assessed design event. It would be simply wrong to tell readers that GSE’s own assessment shows the residential scheme to be inaccessible or unsafe.

But the same FRA says access to the hotel, golf clubhouse and course could be affected and contemplates upper floors being used as “safe, dry refuge”. The new NPPF refers to an “agreed emergency plan”; GSE’s FRA talks about a Flood Warning and Evacuation Plan being prepared. That gap, like the 7.30m/7.50m defence discrepancy, deserves closing before permission rather than afterwards.

February evidence, March rules, August claims

Energy provides one last revealing timeline.

Hilson Moran’s 13 February Sustainability Statement says the Future Homes Standard hadn’t yet been adopted, uses SAP 10.2 reference values and promises to follow the final requirements once they become available. The Government published the final Future Homes and Buildings Standards on 24 March. By 5 August, however, GSE’s Planning Statement was saying the residential scheme “aligns with the Future Homes Standard” while simultaneously acknowledging that detailed energy modelling would come later at Reserved Matters.

There’s another contradiction underneath that.

The Sustainability Statement says residential air-source heat-pump “Feasibility to be explored”. The Air Quality chapter, meanwhile, says “there is no on-site combustion plant” and assumes “an all-electric approach through Air Source Heat Pumps (‘ASHP’) and photovoltaic panels (‘PV’)”. One describes an option still being explored. The other relies on it as an environmental assumption.

FHDC needs one answer.

And GSE does have a case

It would be daft to pretend otherwise.

GSE promises 25% “affordable housing” — around 73 homes. But “affordable” is a planning term covering several very different tenures, including affordable housing for rent, discounted market sale, shared ownership and rent-to-buy. FHDC’s adopted Policy CSD1 says that, for developments of 15 homes or more, approximately 70% of the “affordable housing” should, as a starting point, be affordable housing for rent. Applied straightforwardly here, that would be around 51 of the 73 affordable homes. So the eventual tenure split matters every bit as much as the headline number.

And those homes would matter. KCC records just nine additional “affordable homes” in Folkestone & Hythe in 2024/25, all delivered through rehabilitation or acquisition rather than new build. GSE also claims a 24.18% habitat biodiversity net gain and 236% hedgerow uplift. If those promises are properly secured and delivered, they deserve real weight.

So do a proper 25m public pool, hotel investment and better public access.

GSE has also changed its plans in response to consultation. Its own engagement report records 23% supporting the current proposals, 51% opposing them and 26% unsure. It says opposition centred particularly on perceived scale, visual impact, local infrastructure and loss of open space, while supportive comments focused on the hotel and new leisure provision.

This isn’t goodies versus baddies.

It’s about whether the evidence is ready.

Before councillors put their hands up, FHDC should have one current NPPF assessment, one correct pool size running through the relevant technical documents, one corrected floorspace schedule, agreed healthcare mitigation, a properly tested open-space case, clarity over what archaeology must be investigated now, consistent flood evidence and a settled energy assumption behind the air-quality assessment.

GSE has put a £120m proposition on Hythe’s seafront, with some substantial benefits attached to it. Councillors may ultimately decide those benefits outweigh the harms.

But before they do, they should at least be certain they’re judging the same development, using the same numbers, against the rules now in force.

Have a story that needs telling, or information you think may interest us? Please get in touch. All correspondence will be treated in the strictest confidence TheShepwayVoxTeam@proton.me

The Shepway Vox Team

The Velvet Voices of Voxatiousness