How to Find a Flat in London Fast: The Definitive Guide

First, understand how fast it really moves

If you've just started looking at Rightmove and you're planning to “browse for a couple of weeks before getting serious,” you're going to struggle. London's rental market isn't like buying a sofa. A decent one-bed in Zones 2 or 3 will typically receive 20–30 enquiries within the first few hours of going live. By the end of the first day, agents have often stopped reading new messages entirely.

This isn't hyperbole. Ask any letting agent south of the river and they'll confirm it. The good listings—the ones that are priced fairly, in a liveable condition, and in a reasonable location—are effectively gone within 24–48 hours. Not “under offer” necessarily, but the viewing slots are full and the agent has a shortlist. If your enquiry arrives on day two, you're already in the recycling bin.

So the single most important thing you can do is compress the time between a listing appearing and your enquiry landing in the agent's inbox. Everything else in this guide is in service of that goal.

The best times to contact letting agents

Timing matters more than you think. Most agents work Monday to Friday with a skeleton crew on Saturdays, and they have patterns just like anyone else. Here's what works:

That said, speed still trumps timing. If a perfect flat goes live at 3pm on a Sunday, send the enquiry immediately—don't wait until Tuesday. The timing advice above is for when you have a choice, not a rule to follow rigidly.

Which areas move fastest (and slowest)

Not every part of London moves at the same pace. Understanding the turnover in your target area helps you calibrate how aggressive you need to be.

High turnover (move fast or miss out)

Zone 2–3 areas popular with young professionals tend to have the fastest churn. Think Clapham, Hackney, Peckham, Brixton, Bethnal Green, and Dalston. These areas have large rental populations, relatively standardised housing stock (Victorian conversions, purpose-built flats), and high demand from people who know exactly what they want. Listings here can fill viewing slots within a single afternoon.

Medium turnover

Outer Zone 2 and inner Zone 3 areas like Tooting, Forest Hill, Walthamstow, and Lewisham move quickly but you've usually got a day or two before viewings are fully booked. Still fast by any normal city's standards, but you can breathe a little.

Slower turnover

Zones 4–6, parts of South West London (Putney, Wimbledon), and some North London suburbs tend to move a bit more slowly. There's more family housing, more managed lets, and slightly less competition from the twenty-something crowd refreshing Rightmove every hour. You might have three to five days here, sometimes more.

If you're flexible on area, it's worth knowing that broadening your search by just one zone can dramatically reduce the pressure. A flat in Brockley might sit for two days while an identical one in Peckham goes in two hours.

What to say in your first message to an agent

Your first enquiry is basically a job application. Agents are scanning dozens of messages looking for tenants who are ready, able, and unlikely to waste their time. A generic “Hi, is this still available?” tells them nothing and goes straight to the bottom of the pile.

Here's what to include:

• Your move-in date. Be specific. “Available from 1 March” is infinitely better than “looking to move soon.” If you can be flexible, say that too.
• Your budget. Confirm you can afford the listed rent. If it's at the top of your range, don't mention that—just confirm you're comfortable with the asking price.
• Your occupation. A one-line summary: “I'm a software engineer working in the City” or “I'm a junior doctor at King's.” Agents (and landlords) like stability.
• Number of tenants. Solo, a couple, two sharers—be clear upfront. Mismatches waste everyone's time.
• Viewing availability. Offer specific times. “I'm free any weekday after 5pm or all day Saturday” shows you're serious and makes the agent's job easier.

Keep it to one short paragraph. Agents don't read essays. The goal is to signal “I am a real, qualified person who is ready to move forward immediately.”

Set up Rightmove alerts properly

Most people set up one broad Rightmove alert and leave it at that. You can do much better.

• Create multiple alerts with different criteria. Instead of one alert for “£1,200–£1,800, Zones 1–3,” create several focused alerts: one for Hackney up to £1,500, one for Clapham up to £1,600, one for Peckham up to £1,400, and so on. Focused alerts mean you immediately know which area a new listing is in without even opening it.
• Set alerts to “instant.” Rightmove offers daily or instant email alerts. Always choose instant. The daily digest arrives in the morning, by which time the best listings from the day before are already gone.
• Sort by “newest listed.” When you do browse manually, always sort by newest. The default sort includes “featured” listings that agents have paid to promote—these aren't necessarily the freshest.
• Check at key listing times. New listings tend to cluster around 8–10am and again around 1–2pm when agents return from morning viewings and upload fresh stock. A quick scroll at these times can catch things before the alert email even arrives.

One note: Rightmove's alert emails can be slow. There's often a 15–30 minute delay between a listing going live on the site and the alert email landing. If you're in a competitive area, that half-hour gap can cost you. Manually checking or using tools that poll the site more frequently can help close the gap.

Get your documents ready before you start looking

This is the step most people skip—and it costs them flats. In a fast-moving market, the person who can say “I can send references and proof of income today” beats the person who needs “a few days to sort that out.” Every time.

Here's what you should have ready in a folder on your phone or laptop before your first viewing:

• Photo ID — passport or driving licence.
• Proof of income — last three months of payslips, or your employment contract if you've just started a new job. Self-employed? Have your SA302 or accountant's reference ready.
• Proof of address — a bank statement or utility bill from the last three months.
• Employer reference — a letter from your employer confirming your role, salary, and contract type. HR departments can be slow, so request this early.
• Previous landlord reference — if you're currently renting, get your landlord's contact details and ideally a short written reference confirming you paid on time and left the property in good condition.
• Guarantor details — if you need one (common for those earning under 2.5x the annual rent), have their agreement and documents lined up in advance.

Practical tactics that save hours

Beyond the big stuff, there are a handful of small habits that compound into a serious advantage:

Use a dedicated email address

Create a Gmail or Outlook address just for flat hunting. Something like yourname.flathunt@gmail.com. This keeps agent replies, Rightmove alerts, and referencing emails separate from your personal inbox. You won't miss a reply buried between newsletters, and it's much easier to stay on top of multiple conversations.

Write response templates

If you're sending 10–15 enquiries a day (and in a competitive search, you should be), you don't want to type each one from scratch. Draft two or three templates—one for your initial enquiry, one for following up, one for confirming a viewing—and keep them in your phone's notes app. Copy, paste, personalise the property address and rent, send. It takes thirty seconds instead of five minutes.

Book viewings for the same day if you can

When an agent responds with available viewing times, take the earliest one. Don't try to batch viewings for the weekend unless there's genuinely no alternative. Good flats don't wait. If you're working, many agents will accommodate an early-evening slot—you just need to ask.

Phone, don't just email

For properties you're genuinely excited about, pick up the phone. Call the agency directly, ask for the person handling the listing, and book a viewing on the spot. Emails sit in a queue. Phone calls get answered. This alone puts you ahead of 90% of other applicants who are too nervous or too busy to call.

Be ready to offer on the spot

If you walk into a viewing and the flat is right, tell the agent immediately. “I'd like to put an offer in at asking price” is all you need to say. Having your documents ready means you can follow up with everything they need within the hour. Hesitating overnight is how you lose flats to someone who was less qualified but more decisive.

The speed problem (and how to solve it)

The single biggest frustration people have with London flat hunting is the speed mismatch. You have a job. You have a life. You can't spend every waking hour refreshing Rightmove and firing off emails. But the market doesn't care about your schedule. Listings go live at random times and the early responders win.

There are a few ways to deal with this. One is brute force: take a week off work and dedicate it entirely to flat hunting. Seriously. If you can manage it, a focused week of full-time searching, enquiring, and viewing is far more effective than two months of half-hearted evening browsing.

Another approach is to use tools that automate the monitoring and initial contact. Lettie, for example, watches Rightmove continuously and sends enquiries on your behalf the moment something matching your criteria goes live—which solves the timing problem neatly, especially if you're searching while working a full-time job. But whether you use a tool or do it manually, the principle is the same: the faster your enquiry arrives, the better your chances.

Common mistakes that slow you down

• Being too picky too early. Your first week of viewings is about calibrating expectations, not finding The One. Go and see places, even ones you're not sure about. You'll learn what £1,500 actually gets you in different areas, and you'll get faster at making decisions.
• Only looking at one portal. Rightmove is the biggest, but some agents list on Zoopla or OpenRent first. Check all three, or at least two.
• Waiting for the “perfect” flat. It doesn't exist. In London, you're optimising across rent, location, size, condition, and commute time. You'll need to compromise on at least one. Accept that early and you'll move much faster.
• Not following up. If you don't hear back from an agent within 24 hours, follow up. A polite “Just checking if any viewing slots are still available for [address]?” is perfectly fine. Agents are juggling dozens of properties and your enquiry might have genuinely been missed.
• Applying from abroad without a plan. If you're moving to London from another country, the process is significantly harder without a UK guarantor or six months' rent upfront. Services like Housing Hand can act as a guarantor, but factor this into your timeline.

A realistic timeline

If you follow everything in this guide, here's roughly what to expect:

Two to three weeks from starting your search to having a signed tenancy is entirely achievable in London. It's not relaxed, but it's doable if you treat it like the competitive process it is.

The bottom line

Finding a flat in London fast comes down to three things: preparation, speed, and persistence. Get your documents ready before you start. Respond to new listings within minutes, not hours. And keep going even when agents ghost you or flats get snapped up before you can view them. It happens to everyone.

The market is tough, but it's not impossible. Thousands of people find great flats every month. The ones who succeed are the ones who understand the game they're playing and prepare accordingly. You now know exactly what to do—so go and do it.

Good luck out there.