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LEASE-iQ
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Last reviewed: 2 May 2026 · Spot something wrong? Tell us and we'll fix it.
LEASE-iQ · a product of Building Trust

Your lease question.
Answered in seconds.

A solicitor's lease review typically starts at £350. Your first question with LEASE-iQ is free.

LEASE-iQ is the AI lease intelligence product from Building Trust, the UK leasehold reference platform. Upload your lease. Ask anything. Get a clause-cited answer cross-checked by multiple AI models before it reaches you.

Ask your first question free → Or send a voice briefing →

No card needed. England & Wales only. Information, not legal advice.

Two ways to use LEASE-iQ

Pick the door that matches your situation.

Same engine, same regulatory overlay, same clause-cited output. Two different shapes of input, depending on how tangled your situation is.

Quick chat · free

One specific question

"Can my freeholder charge for X?" "What does the alterations clause say?" Type the question, get a clause-cited answer in seconds.

  • ✓ Instant answer with clause reference
  • ✓ First question free, no card
  • ✓ Best for clear single questions
Ask your first question free →
Voice briefing · pilot, free

A tangled, multi-issue situation

A water leak, a managing agent dispute, a lease that doesn't match what's on the ground. Send an 8-prompt voice briefing plus your lease. Get a written deliverable back in 24 hours.

  • ✓ Plain-English summary with clause-cited analysis
  • ✓ A ready-to-send letter (we write it; you sign and send)
  • ✓ A solicitor briefing summary you can hand to your own lawyer
  • ✓ 24-hour turnaround. Stream 1 £50 / case, Stream 2 £225 / case with independent solicitor sign-off by Bitesh Solanky (True Counsel Limited).
Send a voice briefing →
PDF, scan or photo · handwritten leases from 1930s onwards · processed on GCP London · never used to train any model
Your situation Watch the demo How it works Why not ChatGPT The pipeline How we stay current For directors Pricing Try free →
What people actually arrive with

Three real situations. Three answers your solicitor would charge £350+ for.

If any of these is your situation tonight, LEASE-iQ reads your actual lease and gives you the answer with the clause cited. The first question is free.

Service charge

"My freeholder wants £4,200. Do I actually have to pay?"

LEASE-iQ checks whether the demand was issued correctly under Section 21B LTA 1985LTA 1985, s.21B. Every service charge demand must include the prescribed summary of rights and obligations. Without it, the demand is not enforceable until the landlord complies., whether the costs are within the 18-month time barLTA 1985, s.20B. Costs must be demanded within 18 months of being incurred, or become unrecoverable., and whether each line item is recoverable under your specific lease. Cites the exact clause.

Sublet / Airbnb

"Can I let my flat on Airbnb?"

Most leases prohibit short-term holiday lets even when they permit longer subletting. LEASE-iQ reads your subletting clause, tells you what duration is permitted, what consent is required, and how the Renters' Rights Act 2026LFRA 2024 + Renters' Rights Act 2026. Reshaped tenancy regulation; LEASE-iQ ingests the new regime on 1 May 2026. changes the picture for any AST you would grant a sub-tenant.

For directors

"We're voting on £8,000 of works each. Was Section 20 done right?"

LEASE-iQ reads your lease for the recoverability route and confirms whether the consultation hits the three statutory stagesLTA 1985, s.20. Stage 1 Notice of Intention, Stage 2 Statement of Estimates with leaseholder nomination of contractors, Stage 3 Notice of Reasons. Skip any stage and recovery is capped at £250 per leaseholder.: Notice of Intention, Statement of Estimates, Notice of Reasons. Flags missing stages, short timelines, and any line a leaseholder could challenge under s.27ALTA 1985, s.27A. The First-tier Tribunal jurisdiction to determine whether a service charge is reasonable and payable..

New · just shipped
Ask LEASE-iQ what legislation applies to you
Type "what legislation applies to my building" and LEASE-iQ returns the live statutes that govern your lease (LTA 1985, CLRA 2002, BSA 2022, LAFRA 2024, RRA 2026) with the sections that bear on your specific situation. Surfaces any statute you might not have known applied.

If your situation is not one of these, that is fine. LEASE-iQ answers any lease question. See what LEASE-iQ solves for your role → · User guide →

How it works

Upload. Ask. Know.

No training. No fine-tuning. LEASE-iQ reads YOUR lease every time.

1

Upload your lease

PDF, scan, even handwritten leases from the 1930s. LEASE-iQ reads documents that most AI tools can't even open.

2

Ask your question

In plain English. "Can I sublet?" "Who pays for the roof?" "What notice period for alterations?" Any question about your lease.

3

Get a verified answer

Every answer cites the specific clause in your lease and is cross-checked by multiple AI models before it is shown. If the question is genuinely ambiguous, LEASE-iQ tells you.

Why this reads the lease you actually signed

Most legal tools answer the statute. LEASE-iQ answers the lease you actually signed.

They tell you what the law says in general. LEASE-iQ reads your document: the schedule on page 34, the 2019 deed of variation bolted on at the end, the clause that contradicts the one before it. That is the lease you have to live under. That is the one it reads.

Why LEASE-iQ

Why not just use ChatGPT? Or ask a solicitor?

One gives you a confident wrong answer. The other charges £350 per question. There's a better way.

ChatGPT / Generic AI
1. Cannot read PDFs accurately.

LLMs autocomplete; they do not read. They invent text across page breaks, columns, stamps, and redactions. One wrong digit on ground rent or the £250 Section 20 threshold flips the answer.

2. Cannot model the lease structure.

Leases are hierarchical: clauses, schedules, definitions, cross-references, and deeds of variation that override the original wording. Generic AI reads it as flat prose and loses precedence.

3. Does not know the live statute book.

LTA 1985, CLRA 2002, BSA 2022, LAFRA 2024, RRA 2026 plus 40 years of tribunal authority. Foundation models train on stale snapshots. A pre-Daejan answer on Section 20 dispensation is still a wrong answer.

⚠️ The risk both ways: directors and agents are seeing confident letters that quote made-up clauses. Leaseholders sending ChatGPT-drafted challenges can trigger adverse costs under s.20C and undermine a real grievance.

Full technical detail, with references →

LEASE-iQ
Reads YOUR actual lease. Every clause, every schedule, every cross-reference. Answers only from your document, never from training data.
Maps the lease onto a UK ontology with three-level reference chaining: clause → schedule → definition → deed of variation.
Applies a regulatory overlay updated weekly by a practising solicitor. RRA 2026 ingests on 1 May.
Cross-checks every answer with the Juror: 10 parallel responses, outlier removal, 3-agent consensus vote. Uncertainty flagged, never hidden.
The four-stage pipeline
Read → ontology → regulatory overlay → Juror. Strip any stage and accuracy drops materially.
Ask your first question free →
Under the hood

Two questions worth asking before you trust an AI on legal text.

How does it actually answer a question? And how is it not already out of date? Both have explicit answers.

How LEASE-iQ answers a question

A 4-stage pipeline that closes the failure modes that break generic AI: PDF reading, lease structure, stale statutes, confident-wrong.

How we stay current on UK statute

What we track, how updates are reviewed before going live, and how you can verify what we treat as the live statute book.

The architecture in detail → For partners and integrators →

"We had a water leak. Three flats affected. The solicitor told us we were liable as freeholders. LEASE-iQ read the actual lease and found the clause that put liability on the leaseholder's internal pipework. Saved us thousands."

Carl Johnson

Director, Share of Freehold · SW11

Verified pilot user
Demo · 90 seconds

See LEASE-iQ read a real lease.

Upload your lease, ask a question, get a clause-cited answer. Faster than reading this paragraph.

Directors: stop guessing what the lease says before your next board meeting

Directors

Most compliance questions start with 'what does the lease say?' Stop guessing. LEASE-iQ reads the lease and gives you the answer - with the clause reference you need for board minutes, leaseholder communications, and tribunal evidence.

Board meeting preparation

Get instant answers to lease questions before board meetings. Share clause-cited responses with other directors.

Tribunal-ready evidence

Every LEASE-iQ answer includes the specific clause reference. If challenged, you have documentation that shows you consulted the lease.

Try LEASE-iQ free →
Answer to Action

LEASE-iQ answers your question. Then what?

Most tools give you information and leave you to figure out what to do with it. LEASE-iQ connects every answer to the next step.

LEASE-iQ says

Your lease requires written consent from the freeholder before subletting.

Your next step
Use the consent request letter template →
LEASE-iQ says

Your ground rent doubles every 10 years. This makes your lease harder to sell and more expensive to extend.

Your next step
Check what extension will cost →
LEASE-iQ says

Your service charge has no cap. The freeholder can recover costs without limit.

Your next step
Use the service charge challenge letter →
Pricing

A property solicitor's lease review typically starts at £350. Your first LEASE-iQ question is free.

A property solicitor's written lease review typically starts at £350. LEASE-iQ gives you clause-cited answers from your actual lease, cross-checked by multiple AI models.

Try free → See all plans →

Not sure where to start? Talk to us.

We are directors ourselves at Hafer Road in Battersea. We have been through lease extensions, service charge disputes, and RTM. No sales pitch. Just a conversation.

No spam. Adam reads every message personally.

Not sure if the document you have is your lease, or where to find it? See the user guide on identifying and locating your lease →

Monthly digest for leaseholders and directors

One email a month. New regulations, tribunal decisions that matter, and questions real directors asked LEASE-iQ this month.

No spam. Unsubscribe anytime. Written by directors who run their own building at Hafer Road.

Ask LEASE-iQ

Got a lease question? Type it here.

The Building Trust assistant can route you to the right page, explain a clause, or get you started with LEASE-iQ. First question is free.

Want a written, clause-cited answer in 24 hours instead? Talk to us →