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Major Works and Section 20 Guide

Reviewed: May 14, 2026 1 min read General information only

Quick answer

Section 20 consultation is intended to give leaseholders notice of qualifying works or long-term agreements and a chance to comment before large costs are passed on.

What to do next

  1. Identify the notice stage and deadline for observations.
  2. Ask for the scope of works, surveyor report, estimates and tender documents.
  3. Check whether the works are repairs, improvements or mixed works.
  4. Compare the proposed cost with actual defects and lease responsibilities.
  5. Keep a written record of all objections and questions.

Common mistakes

  • Only objecting generally without evidence.
  • Missing the observation deadline.
  • Failing to separate leaseholder responsibility from freeholder responsibility.
  • Ignoring whether consultation was properly carried out.

Useful related resources

  • Request Section 20 documents
  • Challenge major works cost
  • Major works contribution estimator
General information only: check the current official position and consider professional advice before taking formal legal action.
Disclaimer
This is general information for landlords and is not legal advice. Check current official guidance before formal action.