If your building needs significant works — a new roof, lift replacement, or external redecoration — Section 20 consultation is not optional. It is the legal requirement that gives leaseholders a say in who carries out the work and what it costs. Get it wrong and a tribunal can limit your recovery to £250 per leaseholder, no matter what the works actually cost.

What Is Section 20 Consultation?

Section 20 of the Landlord and Tenant Act 1985 requires a freeholder, landlord, or residents management company to consult leaseholders before carrying out qualifying works or entering into a qualifying long-term agreement. The consultation exists to protect leaseholders from having expensive or poor-value work imposed on them without any say.

Two types of activity trigger it. Qualifying works are any works where the contribution from any one leaseholder would exceed £250. Qualifying long-term agreements are contracts of more than 12 months where any leaseholder's contribution would exceed £100 per year. This guide is the dedicated Section 20 walkthrough promised in our service charges explainer, so if you have not read that one yet, it covers the wider picture this sits inside.

The Two-Stage Process for Qualifying Works

For most qualifying works, Section 20 consultation follows a two-stage process set out in the Service Charges (Consultation Requirements) (England) Regulations 2003. Each stage has a strict observation period that you must not cut short.

Stage 1 — Notice of Intention

You must serve a notice on every leaseholder and any recognised tenants' association describing the works, explaining why they are necessary, and inviting written observations. Leaseholders have 30 days to respond. They can also nominate a contractor they want to provide an estimate — if they do, you are legally required to invite that contractor to tender.

Stage 2 — Notification of Estimates

Once you have gathered at least two estimates — including one from any contractor nominated by leaseholders — you must send the details of each estimate to every leaseholder. They again have 30 days to submit observations. If you intend to appoint a contractor who did not submit the lowest estimate, you must include a written statement of reasons explaining your choice.

You may not start the works until Stage 2 is complete and the 30-day observation period has expired, unless the works are genuinely urgent.

The Three-Stage Process for Long-Term Agreements

Qualifying long-term agreements require a third stage. After awarding the contract, you must notify leaseholders of the award and your reasons, and they have a right to make further representations. This third stage applies only to contracts exceeding 12 months — it does not apply to one-off qualifying works.

Section 20 — Key Legal Provisions

Provision	What the law says	What that means for you
s.20	Sets the qualifying works and qualifying long-term agreement thresholds and the consultation requirement itself.	Cross the £250 or £100 per year threshold and consultation is mandatory, whatever the total project cost.
SI 2003/1987	The Consultation Requirements Regulations set out the exact two-stage and three-stage notice content.	This is the regulation your notices must actually comply with, not just the headline duty in section 20.
s.20ZA	First-tier Tribunal power to dispense with all or part of the consultation requirements.	Missing a step is not automatically fatal, but dispensation is a tribunal application, not a formality.

What Happens If You Fail to Consult?

The consequences are severe. A tribunal will limit the amount you can recover through the service charge to £250 per leaseholder for qualifying works, or £100 per leaseholder per year for long-term agreements — regardless of the actual cost. On a building with 20 flats, that means a maximum recovery of £5,000 towards a £60,000 roof replacement.

The shortfall must be funded from reserves or absorbed by the freeholder. There is no route back once the works are complete and the consultation has not been done correctly.

Can You Apply for Dispensation?

Yes. Dispensation* is a legal term for asking the tribunal to excuse a landlord or management company from all or part of the consultation requirements, usually because a step was missed, a deadline was cut short, or the works were genuinely urgent. It does not happen automatically, and the tribunal can attach conditions even when it says yes.

*In everyday English, dispensation just means being let off doing something you would normally be required to do. Here, that means being let off some or all of the formal consultation steps, not being let off consulting altogether.

The leading case shows exactly how costly getting it wrong can be. In Daejan Investments Ltd v Benson [2013] UKSC 14, a landlord who had barely consulted at all applied for dispensation after works totalling just under £280,000. Without dispensation, recovery would have been capped at roughly £1,250 across all leaseholders under the statutory limit.

The Supreme Court granted dispensation, but only on terms: the leaseholders' total liability was cut by £50,000 and the landlord paid tribunal costs. The court's test focuses on whether leaseholders suffered real prejudice from the failure to consult, not on how badly the landlord broke the rules, but that did not mean the landlord got off free. Dispensation applications take time and rarely come without cost. If you believe you need one, instruct a surveyor or solicitor before any work begins, not after the fact.

Is Section 20 Being Reformed?

The government ran a consultation between July and September 2025, "Strengthening leaseholder protections over charges and services", which proposed changes to the Section 20 major works regime alongside compulsory reserve funds and new regulation of managing agents. Nothing has been legislated yet, and as of July 2026 the current thresholds and process remain fully in force.

Directors should treat this as a signal to keep records well organised now, not a reason to relax the current rules. Blocks with clean consultation records and proper documentation will have the easiest transition.

Common Mistakes That Invalidate the Process

Service by email alone is not sufficient in most cases. Consultation notices must be served in a way that satisfies your lease terms and the statutory rules — post, hand delivery, or serving notice at the property are the safer options. Always take legal advice if your lease is unclear on this point.

You must invite every contractor nominated by leaseholders to tender. Ignoring a nominated contractor is one of the most common grounds on which leaseholders successfully challenge a consultation at tribunal. If you reject a nominated contractor, your statement of reasons must address this directly.

Keep full records. You need to demonstrate at any future tribunal that every notice was served, every observation period ran in full, and every estimate was properly shared. Dated copies of all correspondence are the minimum standard, and Daejan shows exactly why — the landlord's weak paperwork trail is what put £280,000 at risk in the first place.

What RTM Companies and RMC Directors Need to Know

If your building has gone through the right to manage process, the Section 20 obligations now fall on the RTM company — not the former managing agent. That is one of the biggest operational responsibilities that comes with taking over management.

The same applies to residents management companies. As a director, you are personally responsible for ensuring the consultation is completed correctly before any works are commissioned above the threshold. Freehold.Pro gives you a single place to store every notice, estimate, and leaseholder response, and track each observation deadline, so you have a complete record if a consultation is ever challenged at tribunal.

Section 20 Consultation — Frequently Asked Questions

Do I need Section 20 consultation for a £5,000 roof repair?

Yes, if any individual leaseholder's contribution towards the works exceeds £250, full Section 20 consultation is required regardless of the total project cost. A £5,000 job split across a small block can easily cross that threshold for each flat.

Can leaseholders refuse Section 20 works?

Leaseholders cannot formally veto the works, but they can raise written observations, nominate a contractor for tender, and challenge unreasonable costs or a flawed consultation at the First-tier Tribunal after the fact.

How long does Section 20 consultation take?

The statutory minimum is 60 days, covering both 30-day observation periods, but most directors should budget 3 to 4 months once tendering and estimate gathering are factored in.

Section 20 Consultation — Plain English Glossary

Term	What it means
Qualifying works	Any repair, maintenance, or improvement work where one leaseholder's share would exceed £250.
Qualifying long-term agreement	A contract lasting more than 12 months where any leaseholder's yearly contribution would exceed £100.
Recognised Tenants' Association (RTA)	A group of leaseholders formally recognised by the landlord to represent them collectively, including receiving consultation notices on their behalf.
Notice of Intention	The Stage 1 letter telling leaseholders what work is planned and why, and inviting comments and contractor nominations.
Nominated contractor	A contractor a leaseholder proposes during Stage 1. The landlord must invite to quote and include their estimate alongside any others.
Statement of Estimates	The Stage 2 letter sharing at least two cost estimates and inviting further comments before a contractor is chosen.
Statement of Reasons	A written explanation the landlord must provide if they choose a contractor who did not submit the lowest estimate.
Observation period	The 30-day window leaseholders have to respond in writing at each stage of consultation.
Dispensation	Tribunal permission to skip or shorten part of the consultation process, not a blank cheque to skip consultation altogether.
Tribunal	A legal body similar to a court, but usually more informal and specialised, set up to decide disputes in a specific area such as housing or property.
First-tier Tribunal (Property Chamber)	The specific tribunal in England that rules on service charge and consultation disputes.
Section 20C	A different, related provision that lets a leaseholder ask the tribunal to stop a landlord's legal costs from being added to the service charge. Easy to confuse with Section 20 itself, but it deals with legal costs, not consultation.

Section 20 Consultation — Quick Reference

Qualifying works threshold: £250 per leaseholder
Qualifying long-term agreement threshold: £100 per leaseholder per year
Observation periods: 30 days minimum at each stage, 60 days minimum total
Failure to consult: recovery capped at £250 per leaseholder
Dispensation route: First-tier Tribunal (Property Chamber), see Daejan v Benson [2013] UKSC 14