🏘️ CLASS C4
Small HMOs (Class C4 — Up to 6 Beds)
Standard multi-lets for professionals or students.
- Up to 85% LTV
- BTL rate pricing
- Mandatory or local Additional Licensing supported
- Personal or SPV Ltd Co.
Specialist HMO Desk · Licensed, Sui Generis & Article 4 Finance
HMO Mortgages: Unlock Commercial Investment Valuations & Maximum Borrowing
From 3-bed C4 lets to 10+ bed Sui Generis assets. Access yield-based valuations, Article 4 planning solutions, and 400+ whole-of-market lenders.
The 4 HMO asset categories
Finance structured around your HMO type
Each category attracts different lenders, pricing and valuation methods — we match the asset to the right desk.
🏢 7+ OCCUPANTS
Large / Sui Generis HMOs
High-density, purpose-built or converted large HMOs requiring Sui Generis planning consent.
- Yield-based Commercial Valuations accepted
- Up to 75–80% LTV against investment value
- Commercial term mortgage pricing
📐 STRICT PLANNING ZONES
Article 4 Direction HMO Finance
Properties situated in strict Article 4 planning zones (e.g., Leeds, Sheffield, York, London).
- Lenders who accept Lawful Development Certificates (CLEUD)
- Prior planning history considered
- Ongoing planning applications supported
🔨 BRIDGE-TO-LET
Unlicensed / Unrefurbished HMO Bridge-to-Let
Acquiring unmortgageable family homes (C3) to convert into licensed HMOs (C4/Sui Generis).
- 95% Day 1 Light Refurb Bridge, or
- 75% Day 1 + 100% Works Drawdown
- Seamless exit onto long-term HMO BTL rate
Valuation mechanics
Bricks & mortar vs. commercial investment valuation
How specialist HMO lenders assess value — and why the yield-based route can release hundreds of thousands in extra borrowing.
| Feature | Standard Bricks & Mortar (MVT) | Commercial Investment Valuation (Yield-Based) |
|---|---|---|
| Assessment basis | Local residential street comparables | Capitalised gross rental income ÷ target yield % |
| Income impact | Ignored (anchored to family house prices) | Direct — higher rental yield = higher property valuation |
| Illustrative case | 8-room HMO valued at £320,000 | 8-room HMO (£57,600/yr @ 8% yield) valued at £720,000 |
| Max borrowing power | £240,000 (at 75% LTV) | £540,000 (at 75% LTV — £300k equity differential) |
| Target asset class | Standard C3 family homes / small C4 | Sui Generis, commercial conversions, multi-lets |
ⓘ Navigating HMO compliance
Planning vs. Licensing
Planning Classes
Class C3 (Standard Family) → Class C4 (Small HMO, 3–6 occupants) → Sui Generis (7+ occupants). Each step changes the consent you need and the lenders available.
Licensing Schemes
Mandatory National Licensing (5+ people, 2+ households) plus local Additional & Selective Licensing wards that can extend licensing to smaller HMOs.
Acorn Advantage
We match your exact planning status — CLEUD, Permitted Development, or Full Planning — with lenders who won't auto-decline on planning technicalities.
Interactive estimator
HMO yield & commercial valuation calculator
See how a yield-based investment valuation transforms your borrowing power compared with a standard bricks-and-mortar figure.
Number of letting rooms
8 rooms
Average rent per room / month
£600
Target commercial yield
8.0%
Gross annual rental income
£57,600
8 rooms × £600/month
Estimated commercial investment value
£720,000
£57,600 ÷ 8.0% yield
Max loan amount at 75% LTV
£540,000
Indicative illustration only. Actual valuations, yields and LTVs depend on lender criteria, licensing status, location and a professional valuation.
Guides & related desks
Keep exploring HMO and portfolio finance
Deeper strategy guides and neighbouring product desks for your next move.
Yorkshire HMO & MUFB Compliance Framework
Deep dive into Article 4 planning, Sui Generis rules, and title engineering across northern student hubs.
Multi-Unit Freehold Blocks (MUFBs)
Prefer self-contained units on a single title? Explore MUFB title-splitting and commercial term mortgages.
Refurbishment & HMO Conversion Hub
Fund C3 to C4/Sui Generis conversion works with staged drawdowns or 95% Day 1 light refurb bridging.
HMO finance FAQs
Answers for HMO investors
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