North West HMO Conversion Specialists
Wolsten are specialist HMO conversion contractors serving Bolton, Wigan, Leigh, Bury and the wider North West. With over 60 years of combined construction experience and 7 years of dedicated HMO conversion work, our family-run team delivers full turnkey HMO projects — from initial feasibility and planning through to a compliant, tenantable property ready to generate income.
We have completed HMO conversions of all types and scales, from a 3-bedroom residential property converted into a fully en-suite 5-bed HMO, to a full-scale pub-to-HMO conversion creating 12 individual units. Whether you are an experienced portfolio investor or approaching your first HMO project, our team will guide you through every stage with honest, expert advice.
All trades are carried out in-house — structural, electrical, plumbing, fire safety, plastering and finishing. One team, one contract, one point of contact throughout.
Specialist Experience
No Subcontractors
Detailed Quote
Types of HMO Conversion
We have experience converting a wide range of property types into fully compliant, high-performing HMOs. Here is an overview of the four main conversion types we specialise in.
Pub to HMO
Former pub buildings offer outstanding HMO conversion potential — large floor plates, high ceilings and commercial-grade construction. Our largest single project converted a pub into 12 self-contained HMO units. These projects require careful planning, fire compartmentation and layout design, all managed in-house by our team.
Residential to HMO
Converting a standard house into a licensed HMO is the most common project we undertake. Whether it’s a 3-bed terrace becoming a 5-bed HMO or a larger property being reconfigured for more rooms, we handle everything from layout redesign and room additions through to full fire safety compliance and building regulations sign-off.
Commercial to HMO
Former offices, retail units and light industrial buildings can be excellent HMO candidates, often available at attractive prices relative to residential stock. Change of use planning permission is required, and the structural and services specification differs significantly from residential conversions — areas where our experience gives investors a clear advantage.
Purpose Built HMO
Building a new HMO from the ground up gives investors the opportunity to design the optimal layout from day one — maximum room count, en suite provision, communal space and fire safety all built in from the outset. Our in-house team handles the full build, delivering a purpose-designed property that maximises rental yield from the moment it’s tenanted.
Our HMO Conversion Process
A single point of contact from first enquiry to tenanted property. We manage every stage in-house — no subcontractors, no gaps in accountability.
Free Consultation
We assess your property’s HMO potential and give you an honest view on feasibility, costs and returns.
Design & Planning
We produce layout drawings, handle planning applications and advise on licensing for your local authority.
Full Quote
A detailed, itemised quote covering all trades. Transparent pricing with no hidden costs or surprises.
The Build
Our in-house team carries out all works to a high standard with regular progress updates throughout.
Handover
A fully compliant, inspection-ready HMO — ready for licensing, tenanting and generating income from day one.
A Wolsten Guide to HMO Conversions
HMO Conversion Costs
The cost of converting a property into an HMO varies significantly depending on the size of the property, its current condition, the number of rooms being created and the level of compliance work required. As a general guide for North West investors:
- Small HMO (3–4 tenants, minimal structural work): £20,000 – £45,000. Typically covers fire doors, electrical upgrades, bathroom refurbishment and redecoration.
- Medium HMO (5–6 tenants): £45,000 – £85,000. Includes layout changes, additional bathrooms or en suites, kitchen upgrades and mandatory licensing compliance.
- Large HMO (7+ tenants): £85,000 – £180,000+. Full structural alterations, fire compartmentation, potential loft conversion or extension to maximise room count.
These are guide figures only. Every HMO conversion is different and costs depend on the property’s current condition, your local authority’s requirements and your specification choices. We always carry out a free site visit before providing a full, itemised quote — so you have accurate numbers before committing to anything.
Planning Permission & HMO Licensing
Planning permission and HMO licensing are two separate requirements, and understanding both is essential before committing to an HMO investment.
Planning Permission
- 3–6 tenants (C4 use class) — usually falls under Permitted Development, no planning application required
- Article 4 areas — planning permission is required even for small HMOs. Parts of Bolton, Wigan and surrounding areas have Article 4 Directions in place. We check your specific postcode as part of the free consultation.
- 7+ tenants (Sui Generis) — full planning permission is always required, regardless of location
- Commercial to HMO — a change of use application is always required
HMO Licensing
- Mandatory licensing is required for all HMOs with 5 or more tenants from 2 or more households
- Additional licensing schemes exist in some areas — some councils (including parts of Bolton and Wigan) require licences for smaller HMOs
- Licence fees typically range from £500 – £1,500 for a 5-year licence from your local authority
- Minimum room sizes, fire safety standards and amenity requirements must all be met before a licence is granted
We build compliance into the design from day one to ensure the licensing process is straightforward once the conversion is complete.
Fire Safety in HMO Conversions
Fire safety is the most critical and non-negotiable element of any HMO conversion. All fire safety works are designed in from the start and carried out by our in-house team to building regulations standards.
- FD30 Fire Doors — 30-minute fire-rated doors are required to every habitable room, kitchen and bathroom. We supply and install certified fire doors with appropriate frames and ironmongery throughout.
- Interlinked Smoke & Heat Detection — Mains-wired, interlinked smoke and heat detectors are required in all rooms and communal areas. All systems are installed and tested by our in-house electrical team before handover.
- Emergency Lighting — Required in all communal areas, hallways and stairwells. Fully designed and installed in-house to building regulations standards.
- Fire Compartmentation — Walls, floors and ceilings between rooms and floors must achieve the required fire resistance rating. We carry out all necessary structural fire protection works including cavity barriers and fire stopping.
- Protected Escape Routes — All HMOs require clearly defined, protected escape routes to external exits. Escape strategies are designed as part of the initial layout planning to ensure compliance is built in from day one.
- Building Control Sign-Off — All fire safety works are carried out to building regulations standards and signed off by building control before handover. We manage the full building regulations process on your behalf.
Why Choose Wolsten for Your HMO Conversion?
- Full Turnkey — One Team, One Contract: All trades are carried out by our own in-house team. No subcontracting means no coordination gaps, no cost surprises and clear accountability throughout your project.
- 7+ Years of HMO Specialist Experience: We have completed HMO conversions ranging from small residential projects to a 12-unit pub conversion. We understand the compliance requirements, local authority relationships and investor priorities that make these projects succeed.
- Compliance Built In From Day One: We don’t bolt on fire safety at the end — we design it in from the start. This avoids costly retrofits, speeds up the licensing process and gets your property tenantable faster.
- Trusted by North West Property Investors: We work with repeat clients including specialist HMO sourcing and investment companies across the North West. Repeat business from experienced investors is the strongest endorsement we can have.
- Transparent Pricing, No Hidden Costs: Our quotes are detailed and itemised. We don’t do ballpark figures — every line of work is clearly specified so you can make informed investment decisions with confidence.
- FMB Registered, TrustMark & SafeContractor Accredited: Our accreditations give property investors the assurance of working with a vetted, professional contractor who meets the industry’s highest standards.
HMO Conversion FAQs
How long does an HMO conversion take?
Timescales vary by project size. A small residential conversion (3–4 rooms, minimal structural work) typically takes 4–8 weeks. A medium conversion with layout changes and additional bathrooms usually takes 8–16 weeks. Large or commercial conversions can take 4–6 months. We provide a detailed programme of works before the build starts.
Do I need planning permission for an HMO in the North West?
It depends on your specific location, though the landscape has changed significantly since mid-2025. Bolton Council introduced a borough-wide Article 4 Direction in June 2025, and Wigan Council — covering areas including Leigh and Atherton — followed with a borough-wide direction in August 2025. This means planning permission is now required for all HMO conversions, regardless of size, across both boroughs. Areas such as Bury and Rochdale do not currently have Article 4 Directions in place for HMOs, meaning most small conversions there still proceed under Permitted Development rights. We check your specific postcode as part of your free consultation and advise you clearly on what applies before any commitment is made.
What is the difference between HMO planning permission and HMO licensing?
Planning permission relates to the change of use of the property and is dealt with by the local planning authority. HMO licensing is a separate process managed by your local council’s housing team, covering safety standards, room sizes and management requirements. Both may be required — we guide you through both as part of our service.
What is the minimum room size for an HMO?
The national minimum is 6.51 square metres for a room used by a single adult. Some local authorities apply stricter minimums. We design all HMO layouts to meet or exceed the requirements of your specific local authority, ensuring no rooms fall below the threshold at the licensing stage.
What areas of the North West do you cover for HMO Conversions?
We carry out HMO conversions across the wider North West, including Manchester, Liverpool, Bolton, Wigan, Preston, Blackpool, Bury, Warrington, Rochdale and Salford. Each area has its own planning and licensing requirements — particularly given the Article 4 Direction changes introduced across Bolton and Wigan in 2025 — so getting local, up-to-date advice before committing to a property is essential. Get in touch and we’ll confirm coverage for your specific location and give you accurate planning information for that area.
Do you manage the licensing application?
We don’t submit the licence application on your behalf as this is the landlord’s legal responsibility, but we ensure the completed property meets all licensing conditions so your application is straightforward. We can advise on the process and point you to the relevant local authority contacts.
Areas We Cover
HMO Conversions Across the North West
We carry out HMO conversions throughout Bolton and the surrounding area. Click your location for local information on HMO planning and licensing requirements.
Our Partners
Forging new partnerships and relationships is key to the long term success of our business, as such we are proud to partner with companies specialising in the sourcing and investing of HMO units. Repeat business is a sign of our long term outlook and the quality of our work.
Recent HMO Projects
A selection of HMO conversion projects completed by our team across the North West.
Wolsten
3-Bed to 4-Bed HMO — PR1, Preston
Full conversion of a 3-bedroom residential property into a fully compliant 4-bedroom HMO. Fire safety fit-out, layout reconfiguration and back to brick full refurbishment
Wolsten
4-Bed Residential to HMO - PR3, Preston
Full conversion of a probate terraced property into a stunning 4 bed HMO unit. Structural redesign, full fire compartmentation, new services installation and planning permission secured.
Wolsten
9-Bed Pub to HMO - WN1, Wigan
Full conversion of a probate terraced property into a stunning 4 bed HMO unit. Structural redesign, full fire compartmentation, new services installation and planning permission secured.
Our Promises
Our Service
Being a family run business elevates our work; with our name and reputation on the line with each project we undertake, we truly believe our service is the best in the North West. Over 30 years of experience and combined 60 years of site experience from the full team, you are in safe hands.
Our Guarantee
All of our work, including labour and certain materials come with a Wolsten guarantee. We have pride in our works, and our guarantees are reflective of this.
Full Turn Key
Our varying skillsets uniquely enables us to provide a full turn key solution for most projects, meaning most work is carried out in house, with no external contractors needed. From brickwork to structural flooring, to electrics and plastering and final finishing, we pride ourselves on seeing a project all the way through, from design to completion.
Would highly recommend fantastic work and a food price to.
Thanks
Contact Us
- Westhoughton, Bolton
- hello@wolsten.co.uk
- 07482332817