St Helens Council has opened the clock on a borough-wide Article 4 Direction for small HMOs, giving landlords a six-week consultation window before a 12-month lead-in to tighter planning control. For landlords, the immediate point is simple: future C3 to C4 conversions could soon need planning permission across the whole borough, not just in isolated hotspots.
The council said there were 106 licensed HMOs in St Helens as of March 2026, up from 66 in 2021-22. It also logged 21 complaints linked to HMOs over the year to March, alongside 84 proactive compliance inspections and four advisory notices.
That matters now because the council is not presenting this as a narrow planning tidy-up. It is framing the move as part of a wider push on concentrations, property management, parking pressure and neighbourhood standards.
St Helens wants more control over future HMO growth
Under a non-immediate Article 4 Direction, the automatic permitted development right to convert a family house into a small HMO for up to six residents would fall away once the direction takes effect. Landlords would still be able to apply, but they would no longer be able to assume a conversion can proceed without a planning test.
The council’s case rests on cumulative impact. It says residents and community groups have raised concerns about over-concentration, parking, waste, local infrastructure and absentee management. That gives landlords a clearer signal about how future applications are likely to be judged.
Planning pressure is spreading beyond the usual HMO hotspots
This follows Landlord Knowledge’s Slough opens consultation on 17,000-home licensing plan and Greenwich opens 18-ward landlord licensing consult as councils widen HMO rules. The direction of travel is the same: councils are using a mix of planning and licensing powers to get tighter control over where shared housing goes and how it is run.
For landlords, the practical risk is timing. A 12-month lead-in sounds generous, but Article 4 changes often alter site appraisals, finance assumptions and exit plans well before they formally start. Investors looking at St Helens stock now will need to price in the chance that a straightforward HMO conversion route could disappear. The council’s own planning guidance on HMOs and its supplementary planning document already makes clear that concentration, neighbour impact and living standards will be central.
There is also a wider message here. St Helens leader George Woodward said the authority was only just starting to ‘tighten the screws’, with licensing and SPD renewal also in view. For landlords, that suggests the Article 4 move should be read as one part of a broader local policy line rather than a stand-alone planning change.
What this means for landlords
- If you’re assessing a St Helens HMO deal: test whether it still works if planning permission becomes mandatory for a small HMO conversion.
- Watch for: consultation detail on over-concentration thresholds, amenity tests and any changes to the council’s HMO SPD.
- Bottom line: St Helens is signalling a harder line on future HMO growth, not just a paperwork change.
Editor’s view
Article 4 stories matter because they change deals before a shovel hits the ground. Once councils start tying HMO growth to neighbourhood politics, landlords lose the luxury of treating planning as an afterthought.
Author: Editorial Team – UK landlord & buy-to-let news, policy, and finance
Published: 28 July 2026
Sources: St Helens Council
Related reading: Slough opens consultation on 17,000-home licensing plan
