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Section 20 Major Works: Common Mistakes to Avoid

The most common mistakes managing agents and freeholders make with Section 20 consultation, and how to get the process right first time.

Guidance NoteApril 2026Major Works
Overview

Getting Section 20 right

Section 20 consultation is a legal requirement before carrying out major works on residential blocks where leaseholder contributions exceed 250 pounds. Getting it wrong can limit cost recovery, delay projects and expose managing agents to tribunal challenges.

Mistake 1: Starting works before consultation

The most serious mistake is beginning works before completing the consultation process. Unless emergency works are genuinely needed and a dispensation application is made, works must not start until the three-stage consultation is complete. Starting early exposes the freeholder to a 250-pound-per-leaseholder cap on recoverable costs.

Mistake 2: Inadequate specification

A vague or incomplete specification leads to unreliable tenders, scope disputes during the works and challenges from leaseholders. The specification should be prepared by a qualified building surveyor and be detailed enough for contractors to price accurately and for leaseholders to understand what they are being asked to contribute towards. Procurement and tendering advice is valuable here.

Mistake 3: Poor record keeping

Every stage of the consultation must be properly documented. This includes proof of service of notices, copies of all leaseholder observations and the landlord's written response to those observations. If the process is challenged at tribunal, the quality of the documentation is often decisive.

Mistake 4: Failing to consider leaseholder nominations

Leaseholders have the right to nominate contractors at the tendering stage. Failing to properly consider nominations, or dismissing them without good reason, is a common ground for challenge. All nominated contractors should be invited to tender on the same specification and their bids evaluated on the same criteria.

FAQ

Frequently asked questions

What is Section 20 consultation?

A statutory three-stage consultation process required before qualifying works exceed 250 pounds per leaseholder. Failure to comply caps recoverable costs at that amount.

What happens if Section 20 is not followed correctly?

The landlord's cost recovery is capped at 250 pounds per leaseholder regardless of actual cost, and leaseholders can challenge charges at the First-tier Tribunal.

Can I get a dispensation from Section 20?

Yes, by applying to the First-tier Tribunal. Dispensation may be granted for urgent works, but is not guaranteed. Following the procedure correctly from the start is always preferable.

How long does the Section 20 process take?

The minimum statutory period is around three months. In practice, allow four to six months when including specification preparation, tendering and evaluation.

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