What to Look for in Block Management Software for Self-Managed Blocks

You took over management of your block from a professional agent. The outgoing agent handed over a folder of spreadsheets, a box of paper invoices, and a login to the buildings insurance portal. Now you need to run service charge demands, chase arrears, comply with Section 20, and produce year-end accounts — and you're wondering whether software could help.

The short answer: yes. The longer answer: most block management software is built for professional managing agents running portfolios of 50+ blocks, not for a volunteer director managing one.

This guide covers what features actually matter for self-managed blocks, what to watch out for, and how to evaluate whether a platform fits your needs and budget.

Why spreadsheets stop working

Most volunteer directors inherit spreadsheets from whoever managed the block before them. For the first year, this feels manageable. Problems emerge as the block grows more complex:

No audit trail — who changed which number, and when?
Lease percentages get stale — a flat is sold, the new leaseholder has different contact details, and the spreadsheet still has the old owner
Arrears tracking is manual — you're cross-referencing bank statements with a separate demands spreadsheet
Section 20 deadlines aren't tracked — you need a separate calendar, and nothing links the timeline to the notices you've sent
Year-end accounts are a nightmare — re-keying data from a spreadsheet into the RICS format takes hours and introduces errors

Software doesn't make these problems disappear. It structures the workflow so you're less likely to miss something.

Features that matter for self-managed blocks

1. Service charge demand generation

The core function. You need software that:

Stores lease percentages for each unit
Calculates individual demands automatically from a total budget
Generates demand letters in the correct statutory format (including the landlord's name and address, as required by Sections 47–48 of the Landlord and Tenant Act 1987)
Tracks which demands have been sent and which are outstanding

Try our free service charge demand generator to see what a compliant demand looks like.

Watch out for: Tools that only generate invoices, not statutory service charge demands. The legal requirements for a valid demand are specific — a generic invoice template won't comply.

2. Arrears tracking

You need to see, at a glance, who owes what and for how long. Key features:

Dashboard showing all outstanding balances by unit
Payment recording (manual or bank feed)
Automatic ageing (14 days, 30 days, 60 days, 90+ days)
Template chase letters at each stage
The 18-month rule flagged visually — any cost approaching the Section 20B deadline should be highlighted
Use our free arrears letter generator to see example chase letters at each stage

3. Section 20 consultation workflow

This is where self-managed blocks face the most risk. A missed deadline can void the entire consultation and cap recoverable costs at £250 per leaseholder. Software should:

Walk you through all three stages step by step
Calculate statutory deadlines automatically from your start date
Generate notice templates for each stage
Track leaseholder observations and contractor nominations
Log when notices were served and how

Most professional agent software includes S20 compliance. Many tools aimed at smaller blocks do not — check before committing. Read our full S20 guide for the process detail, or try our free Section 20 timeline calculator to see how the deadlines work.

4. Year-end service charge accounts

At the end of each accounting year, you need to produce service charge accounts following RICS/ICAEW guidance. These must show income, expenditure by category, and the reserve fund balance.

Software should generate accounts in the standard format without re-keying data from separate spreadsheets.

5. Companies House reminders

RTM companies and RMCs must file an annual confirmation statement with Companies House. Missing the deadline can lead to enforcement action and ultimately the company being struck off the register. Software with automated reminders for this (and insurance renewal, gas safety certificates, and other recurring deadlines) prevents costly oversights.

Features that don't matter (yet)

For a small self-managed block, some features commonly listed in block management software are unnecessary:

Portfolio management — you manage one block, not fifty
Contractor management platforms — you use local tradespeople, not a managed supply chain
Resident portals with messaging — a WhatsApp group works fine for 12 leaseholders
Mobile apps — nice to have, but not a reason to choose one platform over another
API integrations — unless you're connecting to external accounting software, skip this

Pricing: what to expect

Block management software pricing varies widely:

Tier	Typical Cost	Who It's For
Free/DIY	£0	Spreadsheets + Word templates
Entry	£100–300/year per block	Small self-managed blocks
Mid-range	£60–100/month	Small managing agents
Professional	£100–200/month	Mid-size agents, 10+ blocks
Enterprise	£200+/month	Large portfolios

Volunteer directors should look at the entry tier. If the pricing is per-unit rather than per-block, calculate the total for your block size — per-unit pricing can scale surprisingly fast for blocks of 15+ flats.

Red flags on pricing:

Hidden setup fees
Per-user charges (you might have 3-4 directors who need access)
Contracts longer than monthly or annual
Pricing that requires a sales call to discover

Evaluation checklist

Before committing to any platform:

Sources

This guide is for general information only. Always check the specific requirements for your lease and jurisdiction before choosing software or changing your management processes.