Deciding who gets which room is one of the first flashpoints in any shared student house. Rooms are rarely equal — one is bigger, one has the en-suite, one gets the morning sun and one backs onto the bins — so whatever you choose, someone can feel short-changed. A fair, transparent method set out before anyone moves in is the simplest way to stop resentment festering all year.
This guide explains the fairest ways to allocate rooms in a student HMO, how to handle rent when rooms differ, the legal minimum room sizes you must respect, and how to lock the decision down in writing. And you can settle it in seconds with our free random room allocator below.
Key Takeaways
- Random allocation is usually the fairest, least argument-prone method — nobody can claim bias.
- Use our free tool for an instant, visible draw everyone can watch and trust.
- Rent can fairly differ by room size and features — agree it before the draw, not after.
- Every let bedroom must meet the HMO minimum size (6.51 m² for one person over 10).
- Put the final allocation in writing so it protects both you and the tenants.
Why room choice causes friction
Different sizes, en-suites, aspect, noise and proximity to the kitchen create natural inequalities. On a joint tenancy, sharers are usually paying the same rent, so an unfair room split feels like paying the same for less. Left to a free-for-all, it rewards whoever is pushiest or replies fastest — often disadvantaging international students who sign from abroad. A neutral system removes the personal grievance.
The fairest ways to allocate rooms
Most informal methods carry a built-in flaw:
| Method | The problem |
|---|---|
| First come, first served | Rewards speed over fairness; disadvantages students signing from abroad |
| Rent-based bidding | Creates a financial pecking order and can breach a joint tenancy’s equal rent |
| Seniority (returners first) | Unfair to new housemates |
| Straight negotiation | Often ends in stand-offs and lasting resentment |
| Random draw | None — everyone has an equal chance and can see it’s impartial |
A random draw wins because it is visibly impartial. If you want to differ rent by room instead of keeping it equal, set those prices first (see below) and then draw for who pays what — still random, still fair.
How to use the free random room allocator
Our tool takes under two minutes and needs no sign-up:
- Enter the number of bedrooms, the housemates’ names and the room names.
- Spin to generate a random, impartial assignment.
- Print or screenshot the result and share it with everyone as a record.
Do the draw live — on a video call if some housemates are away — so everyone sees it happen.
How many bedrooms?
2 bedroomsEnter your housemates’ names
Enter your bedroom names
Results
Should every room cost the same?
You have two fair options. Keep the rent equal for every room and let the random draw settle who goes where — simplest, and the norm on a single joint tenancy. Or price rooms differently to reflect real differences (size, en-suite, double vs single bed), which students often accept as fair because it matches value to cost.
If you differ the rent, publish the price of each room before anyone commits, keep the gaps proportionate to the actual difference, and record who pays what. Getting the money side clear upfront prevents the most common student-house dispute — and makes rent collection cleaner all year.
HMO room sizes: the legal minimums
Before you allocate anything, check every bedroom is legally usable. Under the Licensing of Houses in Multiple Occupation (Mandatory Conditions of Licences) (England) Regulations 2018, a licensed HMO must meet minimum sleeping-room sizes:
| Used to sleep | Minimum floor area |
|---|---|
| One person aged over 10 | 6.51 m² |
| Two people aged over 10 | 10.22 m² |
| One child under 10 | 4.64 m² |
| Any smaller room | Cannot be used as a bedroom |
Floor area under a ceiling lower than 1.5 m doesn’t count towards the total. A “box room” that falls below the minimum can’t be let as a bedroom at all, so it never enters the allocation. Room sizes also cap how many people can sleep there — another reason to confirm dimensions before you draw.
Kit that makes rooms feel fair
You can narrow the gap between rooms cheaply. Bringing the “worse” rooms up to a good standard — privacy, a proper desk, a comfortable bed and decent blackout — takes a lot of the sting out of who ends up where.
Useful kit for a student HMO room
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- Thumb-turn bedroom lock — gives each tenant privacy while still allowing key-free escape, as HMO fire safety expects.
- A proper desk chair — a small upgrade that makes any room a workable study space.
- Waterproof mattress protectors — protect the mattresses across every changeover.
- Blackout blinds — even up the rooms that get too much light or street glare.
Put the allocation in writing
Whatever method you use, record the outcome so nobody can reopen it later:
- Note each tenant’s room (and their rent, if rooms are priced differently) in or alongside the tenancy agreement.
- Keep the tool’s printout or a screenshot of the draw as evidence it was random.
- Photograph each room’s condition at check-in for the inventory, so deposits are easy to settle at the end.
Common mistakes to avoid
- Letting the group sort it out unsupervised — that’s where the arguments start; offer a fair method instead.
- Changing rents after the draw — agree pricing first, then allocate.
- Letting an undersized box room as a bedroom — it breaches HMO licence conditions.
- Not recording the result — a quick printout heads off “we never agreed that” months later.
Conclusion
Fair room allocation sets the tone for the whole tenancy. Decide your method upfront, respect the HMO minimum sizes, be clear about any rent differences, run the draw transparently with the tool above, and write the result down. For more on this market, see our full guide to renting to students and getting a UK guarantor.
Written by the Landlords Portal team, based on UK HMO licensing rules current as of July 2026. This is general guidance for landlords, not legal advice; confirm room sizes and licence conditions with your local authority.
Frequently Asked Questions
Is the allocation truly random?
Yes. The tool uses secure random number generation, so the result can’t be predicted or nudged. Running the draw live in front of everyone makes the fairness obvious.
What if a housemate needs a specific room?
Agree any exceptions before you run the draw — for example a ground-floor room for someone with mobility needs — and document the reason. Then allocate the remaining rooms randomly.
Should rooms of different sizes cost the same?
They can, and equal rent is simplest on a joint tenancy. But it’s also fair to price rooms by size and features, provided you publish the prices before anyone commits and keep the differences proportionate.
What is the minimum bedroom size in an HMO?
In a licensed HMO in England, a room slept in by one person over 10 must be at least 6.51 m², and 10.22 m² for two people. Space under a ceiling below 1.5 m doesn’t count, and anything under 4.64 m² can’t be a bedroom.
Do I have to let students choose their own rooms?
No. As the landlord you can set the allocation method. Offering a transparent random draw is usually the easiest way to keep the group happy and avoid being drawn into disputes.
How do I record the result?
Print or screenshot the draw, note each tenant’s room (and rent, if it varies) in the tenancy paperwork, and take check-in photos of each room. That protects everyone if a question comes up later.
