Deposits are where London renting hurts first. Before you've unpacked a single box, someone wants a four-figure sum "for security" — and how much they can take, where it must be kept, and how you get it back are all governed by rules that surprisingly few renters ever read. Five minutes here saves real money.
The Law: Five Weeks Is the Ceiling, Not the Standard
Since the Tenant Fees Act 2019, landlords in England can take a maximum of five weeks' rent as a tenancy deposit (for annual rents under £50,000). Five weeks is the legal ceiling — but London's rental market has quietly treated it as the default. On a £300/week room, that's £1,500 handed over before day one, on top of your first rent payment.
Nothing stops a landlord asking for less. At Nook, the standard is two weeks' rent — on that same £300/week room, £600 instead of £1,500. That £900 difference is a month of groceries, a travelcard and a decent winter coat, sitting in your account instead of someone's holding scheme. It's one of the reasons we built the rent a room in London guide around total move-in cost, not just weekly rent.
Where Your Deposit Must Live: Protection Schemes
For assured shorthold tenancies in England, your deposit legally must be protected in a government-approved scheme — DPS, TDS or mydeposits — within 30 days of you paying it. You should receive written confirmation naming the scheme. If a landlord can't tell you where your deposit is protected, that's not a quirk; it's a red flag with legal consequences (courts can award up to three times the deposit for non-protection).
Ask two questions before you pay anything: "Which scheme will protect my deposit?" and "When will I get the confirmation?" Legitimate operators answer instantly.
How to Get Every Penny Back
Do the inventory properly. On move-in day, photograph everything — walls, carpet, mattress, that suspicious mark behind the door — and email the photos to the landlord or operator so there's a timestamp. Most deposit disputes are inventory disputes wearing a costume.
Report damage when it happens. A cracked shelf reported in month two reads very differently from one discovered at checkout.
Leave it as you found it. "Fair wear and tear" is protected — scuffed floors from normal living can't be charged to you. Actual damage and serious cleaning can.
Dispute if you disagree. All three schemes offer free dispute resolution, and the burden of evidence sits with the landlord, not you. Renters win or partially win a large share of disputes — don't accept a vague deduction without an itemised breakdown.
Deposit Maths Before You Sign
Whatever room you're considering, run one calculation: deposit + first rent payment + any setup costs = your real move-in number. Two identical £300/week rooms can differ by more than £1,000 on move-in day purely on deposit policy. The weekly rate gets all the attention; the move-in number is what actually empties accounts.
Want the low-friction version? Nook rooms are furnished, all bills are included from £215/week (subject to room availability), and the deposit is two weeks — protected, documented, and returned per your contract. Browse rooms or book a viewing and see the difference on your own spreadsheet.