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Self-Managing a Block of Flats: The Complete Guide for New RMC and RTM Directors

The BlockKeeper Team

A practical guide for new RMC and RTM directors on the legal responsibilities, service charge rules, and tools you need to self-manage a block of flats properly.

So you've become a director of your residents' management company. Maybe your block just successfully exercised the Right to Manage. Maybe the previous director stepped down and nobody else put their hand up. Maybe you've been doing this quietly for years and it's only just dawning on you how much you don't officially know.

Whatever the route, welcome to one of the UK's stranger volunteer roles: unpaid, legally responsible, and fielding texts from your neighbours about the bin area.

This guide is for you. Not for professional managing agents or property lawyers — for the volunteer director who wants to get this right without spending half their evenings reading the Landlord and Tenant Act 1985.

What Does "Self-Managing" Actually Mean?

When a block of flats is self-managed, the residents — usually through a Residents' Management Company (RMC) or a Right to Manage (RTM) company — are responsible for running the building themselves. That means:

The alternative is hiring a professional managing agent to do most of this for you — typically costing £1,000–£3,000 per year per flat. Many blocks choose to self-manage to cut costs and have more control. That can work brilliantly. It can also, if you're not careful, descend into a spreadsheet nightmare.

The key insight: self-management doesn't mean doing it without any structure. It means the structure is yours to create.

Your Legal Responsibilities as a Director

Directors of RMC and RTM companies have genuine legal duties. These aren't bureaucratic technicalities — they're the foundation of your role. The main ones:

Companies House obligations

Your management company is a registered company. That means annual filings:

Service charge obligations under the Landlord and Tenant Act 1985

Service charges must be:

The rules here are more detailed than most new directors realise. We'll cover service charge demands specifically in the next section.

Health and safety

Depending on the size of your block, you'll have obligations around:

None of this is optional. As a director, you carry legal responsibility for ensuring these are in place and kept current.

GDPR

You hold personal data about leaseholders (names, addresses, bank details). You're a data controller, which means you need to handle that data responsibly. In practice for small blocks, this mostly means: don't share leaseholder details unnecessarily, store data securely, and have a basic privacy notice if you're communicating with residents.

Setting Up Service Charges

This is the heart of self-management and the thing most likely to cause you sleepless nights if you get it wrong.

Understand your lease

Every lease sets out:

Your lease is the rulebook. Service charges outside what the lease permits aren't recoverable. Apportioning differently to the lease isn't valid. Start here.

Set a realistic budget

At the start of each service charge year, draw up a budget showing estimated expenditure. You'll typically be collecting:

Estimate conservatively. Service charge demands can only be raised for money actually needed — you can't collect surplus that sits in your account indefinitely without justification.

Issue demands correctly

A service charge demand must include specific wording required by law — a "Summary of Rights and Obligations" prescribed by the Landlord and Tenant Act. Without this wording, leaseholders can legally withhold payment until you send a corrected demand. This trips up a lot of new directors.

Track payments carefully

Know who has paid and who hasn't. Arrears left unmanaged grow — and they're awkward to chase when the debtor lives downstairs. Set up a simple system from day one.

The 18-month rule (Section 20B)

If you spend money on something and don't issue a service charge demand (or a "notice of intention to demand") within 18 months, you may lose the right to recover that cost from leaseholders. This catches a lot of self-managed blocks out, particularly where a backlog of invoices builds up. More on this in our dedicated Section 20B guide.

Managing Day-to-Day Operations

Running a block isn't just about the annual service charge cycle. Ongoing:

Maintenance and repairs

You're responsible for the building's common areas and structure (what exactly depends on your lease). You'll need:

Major works (Section 20 consultation)

If you plan to spend more than £250 per leaseholder on any single project, you must follow a formal consultation process before awarding the contract. This means:

Skipping this process doesn't make the work illegal — but it limits your ability to recover the full cost from leaseholders. The consequences can be financially significant.

Leaseholder communications

Good communication with leaseholders pays dividends. Annual accounts showing where the money went, prompt responses to maintenance queries, advance notice of planned works — all of these reduce conflict and build trust.

Many self-managed blocks use a WhatsApp group for day-to-day chat, combined with more formal written communications (email or letter) for anything legally significant. Keep a record of formal communications.

AGMs

Many management companies are required by their articles of association to hold an Annual General Meeting. Check your articles. AGMs can be simple and brief — they're an opportunity to present the year's accounts, discuss upcoming plans, and formally record any votes.

Common Mistakes New Directors Make

In roughly descending order of how badly they go wrong:

1. Getting service charge demands wrong. Forgetting the statutory wording, wrong apportionment, wrong year — any of these can make a demand unenforceable. Take time to get this right.

2. Missing Companies House deadlines. Set calendar reminders. Fines start at £150 and escalate.

3. Not keeping the reserve fund separate. Reserve (sinking) fund money must be held on statutory trust, separate from the general service charge account. Using one pot for everything creates legal and accounting problems.

4. Ignoring arrears until they're huge. Chase early and consistently. A polite reminder at 30 days is far easier than a solicitor's letter at 18 months.

5. Skipping Section 20 on major works. Especially easy to miss for urgent repairs. If in doubt, get legal advice before proceeding.

6. Letting compliance certificates lapse. A fire risk assessment that expired two years ago isn't just a legal problem — it's a genuine safety issue and an insurance risk.

7. No paper trail. Keep records of decisions made, quotes obtained, money spent. If a leaseholder challenges a charge at tribunal, documentation is everything.

Getting the Right Tools

Plenty of self-managed blocks survive on spreadsheets and email. Plenty also find that system breaks down — when the spreadsheet-keeper steps down, when a leaseholder challenges the accounts, when you realise you've been sending technically non-compliant demands for three years.

The right tools make the job significantly less stressful:

You don't need to spend £195/month on professional agent software built for managing 500 units. BlockKeeper is designed specifically for self-managed blocks like yours — small, volunteer-run, and needing software that's actually understandable to non-accountants. At £29/month, it's less than most blocks spend on light bulbs.

A Note on Getting Help

Self-management doesn't mean doing everything in isolation. Good resources:

No director should try to navigate every edge case alone. The leasehold legal framework genuinely is complicated, and knowing when to get professional input is part of doing the job well.

Summary

Self-managing your block is entirely achievable — thousands of volunteer directors across the UK do it well. The keys are:

  1. Know your lease — it's the source of truth for service charges and apportionment
  2. Get service charge demands right — correct wording, correct apportionment, issued on time
  3. Stay on top of compliance — certificates, Companies House, Section 20 for major works
  4. Keep records — decisions, communications, expenditure
  5. Use the right tools — don't let spreadsheet chaos be what breaks you

If you're just getting started, the best thing you can do is set up proper systems before they're urgent. Future you will be grateful.

Ready to get organised? BlockKeeper is purpose-built for self-managed blocks — legally compliant service charge demands, payment tracking, and compliance reminders, all in one place. Check out BlockKeeper to automate parts of this process.

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