Renting in London 2026: what a flat costs and what deposit is legal

"How much does it cost to rent in London" usually gets answered with someone's figures from five years ago. Here are the official numbers for July 2026, and the rules that protect you by law: how much deposit can be demanded, what you can never be charged for, and what to check before signing.

What renting costs: the current figures

According to ONS, average monthly private rent in July 2026 was:

London — £2,317 a month (up 3.0% on the year).
England — £1,451 (up 3.8%).
UK overall — £1,393 (up 3.7%).

London sits roughly 60% above the rest of England, which is why most newcomers do not start in the centre. Within London the spread is wider still: rent falls as you move out from zones 1–2, but the travelcard rises — so rent and transport have to be budgeted together, not separately.

Note that £2,317 is an average across all private lets, rooms in shared flats and studios included. "How much is a one-bedroom flat in London" has no single answer: in the same city it is both £1,200 in an outer zone and £2,500 in the centre.

The deposit: what can legally be asked

Here agreement ends and law begins. Under the Tenant Fees Act 2019 a tenancy deposit is capped at:

5 weeks' rent where annual rent is under £50,000;
6 weeks' rent where annual rent is between £50,000 and £100,000.

It is counted in weeks of rent, not "two months" as is often asked. A demand for three months' deposit is unlawful.

A holding deposit — to take the property off the market — cannot exceed one week's rent, and is held for 15 days unless another period is agreed in writing.

The deposit must be placed in a government-approved protection scheme within 30 days, and you must be told which one. This is not a formality: an unprotected deposit gives you real leverage at the end. When the tenancy ends, the money is returned within 10 days of the amount being agreed.

What you can never be charged for

A tenant cannot be required to pay for: drawing up the tenancy agreement, reference checks, a loan or insurance as a condition of the tenancy, professional guarantor services, contents insurance, deposit replacement products, or inventories. These are the landlord's costs. You may choose to buy some of them yourself — but they cannot be demanded.

Still permitted: the rent itself (no more than one month in advance); replacement keys and fobs; interest on late rent, capped at 3% above the Bank of England base rate and only after two weeks; changes to the tenancy at £50 or documented reasonable costs; utilities and bills where set out in the agreement and reflecting actual cost.

What to check before signing

Right to Rent. The landlord must check your status. What they may and may not ask for is set out in our separate guide.

Who you are dealing with. Rental fraud nearly always looks the same: a flat well below market price, an "owner abroad", keys to be posted, and a deposit wanted before the viewing. Pay nothing before you have seen the property and the documents.

The agreement. Read what it says about ending the tenancy early, who pays council tax and bills, and notice periods. The rules changed substantially in 2026 — we covered what changed in our guide to the new renting law.

Council tax. A separate local tax that in many tenancies is the tenant's to pay, and one many people leave out of the budget. Confirm before signing whether it is included.

Budgeting realistically

A monthly London budget is rent plus council tax, utilities, internet and mobile, a travelcard and food. On the national median salary, take-home is about £2,630 a month — so average London rent of £2,317 absorbs almost all of it. That is why most newcomers start with a room or a share rather than a flat of their own; it is the normal route, not a defeat.

For the other lines in the budget we have separate guides: transport, mobile and internet, food.

Where to look

The main platforms are Rightmove, Zoopla, OpenRent and SpareRoom (the last specifically for rooms and shares). Among Russian speakers a lot moves by word of mouth: rooms, flats and takeovers can be browsed and posted free on our classifieds board.

In short

Average rent is £2,317 a month in London, £1,451 across England and £1,393 UK-wide (July 2026). By law the deposit is capped at five weeks' rent and the holding deposit at one, and the deposit must be protected within 30 days. Agreement fees, reference checks and inventories are not yours to pay. And budget rent together with transport and council tax, or an outer zone will not turn out cheaper.