Round #1127
21 May 2026, 17:45· housing-law· claude-sonnet-4-6· r13-clean-hints
- Complexity
- band 1
- ZP / UO / OBS
- 6 / 3 / 4
- Journey weight
- 1024
- Lightshift ΔL
- —
Prompt
Leaseholder of a one-bed flat in a converted house in Brighton acquired the leasehold on 1 March 2018 with 84 years then unexpired (current unexpired term 79 years as at the proposed claim date 1 May 2025). Leaseholder served a section 42 notice under the Leasehold Reform Housing and Urban Development Act 1993 on 1 May 2025; the freeholder has counter-noticed with a premium of £36,000. Leaseholder's valuer puts the premium at £14,500. What is the position on (a) the threshold to claim and (b) the route to challenge the premium?
Zero-point index (what the engine surfaced)
ZPI-ZPI-0022 | 2026-05-21T17:45:15Z
Leaseholder of a one-bed flat in a converted house in Brighton acquired the leasehold on 1 March 2018 with 84 years then unexpired (current unexpired term 79 years as at the proposed claim date 1 May 2025). Leaseholder served a section 42 notice under the Leasehold Reform Housing and Urban Development Act 1993 on 1 May 2025; the freeholder has counter-noticed with a premium of £36,000. Leaseholder's valuer puts the premium at £14,500. What is the position on (a) the threshold to claim and (b) the route to challenge the premium?
ZERO POINT — 6 entries (structural invariants)
● hsl(175.97, 100%, 15%) Leasehold Reform Housing and Urban Development Act 1993 s.42 [contract]
● hsl(16.46, 100%, 15%) 90-year lease extension entitlement [contract]
● hsl(68.17, 100%, 15%) premium valuation [contract]
● hsl(266.66, 100%, 15%) r = cov(X,Y) / (σ_X·σ_Y) [contract]
● hsl(273.96, 100%, 15%) r ∈ [-1, 1] [contract]
● hsl(248.53, 100%, 15%) correlation does not imply causation [contract]
UNOBSERVED — 3 entries (implied truths)
○ hsl(77.54, 100%, 42%) Routing middleware [function]
○ hsl(83.08, 100%, 42%) ILogger of T injection [function]
○ hsl(31.38, 100%, 42%) Scoped registration [function]
OBSERVED — 4 entries (explicit in request)
◉ hsl(281.00, 100%, 15%) notice [feature]
◉ hsl(341.00, 100%, 15%) leasehold [feature]
◉ hsl(343.00, 100%, 15%) counter-notice [feature]
◉ hsl(347.00, 100%, 15%) freeholder [feature]
COMPLEXITY │ 13 entries │ spread: 316° │ band: MEDIUM
Baseline response (no ZPI)
# Leasehold Enfranchisement – Section 42 Notice Analysis
## Preliminary: Applicable Legislation
The claim is governed by the **Leasehold Reform, Housing and Urban Development Act 1993** ("the 1993 Act") as amended, including by the **Leasehold Reform (Ground Rent) Act 2022** and the **Leasehold and Freehold Reform Act 2024** ("LAFRA 2024"). However, it is critical to note which provisions of LAFRA 2024 are actually **in force** as at 1 May 2025.
> **Important caveat:** LAFRA 2024 received Royal Assent on 24 May 2024 but the majority of its substantive provisions (including abolition of the two-year ownership rule and valuation changes) require commencement orders. As at the proposed claim date of 1 May 2025, most valuation reforms under LAFRA 2024 are **not yet in force**. The analysis below applies the **1993 Act in its pre-LAFRA 2024 amended form** unless stated otherwise.
---
## (a) Threshold to Claim – Is the Leaseholder Entitled?
### Qualifying Conditions under s.39 & s.5, 1993 Act
The leaseholder must satisfy four principal qualifying conditions:
### 1. Long Lease
The lease must be a **long lease** – defined under s.7 as a lease granted for a term **exceeding 21 years** (s.7(1)(a)). ✅
- Original term: 84 + (7 years elapsed to March 2025) = **91 years** at grant (broadly; the unexpired term at acquisition was 84 years on 1 March 2018, so the original term was approximately **91 years**).
- This plainly exceeds 21 years.
### 2. The Property Must Be a Flat
A **flat** under s.101 means a separate set of premises forming part of a building, constructed or adapted for use as a dwelling, with structural elements above, below or to the side shared with other parts of the building. ✅
- A one-bedroom flat in a converted house will almost certainly satisfy this definition.
### 3. Low Rent Test
Under the **original 1993 Act** the low rent test applied (broadly, annual rent not exceeding two-thirds of the letting value). However, this test was **abolished** by s.166 of the **Commonhold and Leasehold Reform Act 2002** for leases granted on or after 1 April 2003 and subsequently extended.
- The lease here was **acquired on 1 March 2018** – the grant date would need to be checked, but on virtually any modern lease post-2003, the low rent test is **disapplied**. ✅ (assumed satisfied/inapplicable)
### 4. Two-Year Ownership Requirement (s.39(2))
Under the **unamended 1993 Act**, a qualifying tenant must have held the lease for **at least two years** before serving a s.42 notice.
- **Acquisition date:** 1 March 2018
- **Notice date:** 1 May 2025
- **Period of ownership:** approximately **7 years 2 months** ✅
The two-year rule is comfortably satisfied.
> **LAFRA 2024 note:** LAFRA 2024 s.14 *will* abolish the two-year rule entirely when commenced, but this is not yet needed here given 7+ years of ownership.
### 5. The "Excluded Interests" Carve-out (s.5(1) / Resident Landlord)
Under **s.10** of the 1993 Act, there is an exception where the freeholder is a **resident landlord** in a converted building containing no more than four units. This is potentially relevant given this is a **converted house in Brighton**.
**The resident landlord exclusion (s.10) requires:**
- The building is a **conversion** (not purpose-built); ✅ (converted house)
- The freeholder/landlord **occupies another flat in the building as his only or principal home**;
- The building contains **no more than four flats** (in a conversion);
- The landlord has resided there for the last **12 months**.
**This is a critical point the leaseholder must investigate.** If the freeholder lives in another flat in the converted house and has done so for 12+ months, the **leaseholder's right to a new lease could be barred** entirely under s.10.
On the facts as given (no mention of resident landlord), it is assumed this exclusion **does not apply**. ✅
### 6. Conclusion on Entitlement
**The leaseholder appears to be entitled to claim** a new lease under s.42, subject to confirmation that:
- The resident landlord exception (s.10) does not apply;
- The property satisfies the definition of a flat under s.101;
- The lease was originally granted for more than 21 years.
---
## (b) Route to Challenge the Premium
### The Statutory Process: s.48 Counter-Notice
The freeholder has served a **s.48 counter-notice** admitting the right (or, if admitting, proposing terms). The parties are now in a **negotiation window**.
### Step 1: Negotiation Period
Following service of the s.48 counter-notice, the parties have a period for negotiation. The 1993 Act provides **two months** from the date of the counter-notice during which the parties may seek to agree the premium and other terms (s.48(7)). The leaseholder is not obliged to make a further application immediately.
### Step 2: Application to the First-tier Tribunal (Property Chamber)
If terms (including the premium) **cannot be agreed**, either party may apply to the **First-tier Tribunal (Property Chamber)** ("FTT") to determine the terms of acquisition, including the premium.
**Key statutory provision:** **s.48(4)** and **s.48(7)** of the 1993 Act; and the FTT's jurisdiction derives from **Schedule 12, paragraph 1** of the 1993 Act as amended.
**Time limits (critical):**
- The application to the FTT must be made **within six months** of the date of the s.48 counter-notice (s.48(7)).
- If no application is made within this period, **the s.42 notice is deemed withdrawn** and the leaseholder cannot serve a further s.42 notice for **12 months** (s.48(8) – the "moratorium").
> **Practical point:** The leaseholder must **not allow the six-month window to expire** without either agreeing terms or issuing FTT proceedings.
### Step 3: FTT Valuation
The FTT will determine the premium in accordance with **Schedule 13** to the 1993 Act. The premium comprises three components:
#### (i) Diminution in Value of the Freeholder's Interest
The reduction in the present value of the freehold arising from the grant of the new lease (90-year extension + existing term, at a peppercorn rent). This involves:
- **Capitalisation of ground rent** (loss of ground rent income during the unexpired term);
- **Reversion value** (the freeholder's loss of the right to recover the property at lease expiry).
#### (ii) Marriage Value (s.Sch.13, para.4)
The share (minimum **50%**) of the **marriage value** – the uplift in the total value of the property interests arising from the merger of the extended lease into the leaseholder's interest.
**Crucial point – 80-year threshold:**
- Where the **unexpired term exceeds 80 years**, marriage value is **nil** (Schedule 13, para.4(2)).
- Here the unexpired term as at the valuation date (1 May 2025) is **79 years** – i.e., **below 80 years**.
- **Marriage value will therefore be payable.** This is likely the principal reason for the significant divergence between the parties' valuations (£14,500 vs £36,000).
The leaseholder should be advised that **delaying the claim even slightly below 80 years has triggered marriage value liability**, substantially increasing the premium. This is now irreversible for this notice.
**LAFRA 2024 Note:** LAFRA 2024 proposes to **abolish marriage value** entirely. When (and if) that provision is commenced, this will no longer be an issue for future claims. However, **as at 1
Enhanced response (with ZPI)
## Position on the Section 42 Notice
### (a) Threshold to Claim
The leaseholder **qualifies to serve a section 42 notice** and all threshold conditions appear satisfied:
**Qualifying tenant condition (s.39(3) LRH&UDA 1993)**
The leaseholder holds a long lease (originally granted for a term exceeding 21 years) of a flat. That is met on the facts.
**Two-year ownership condition (s.39(2))**
The leaseholder must have owned the leasehold for at least two years immediately before the notice date. The lease was acquired 1 March 2018; the notice was served 1 May 2025 — over seven years of ownership. Condition met.
**No "exempt landlord" or collective enfranchisement bar**
A converted house containing flats does not of itself prevent individual lease extension. There is no suggestion the freeholder is a charitable housing trust or other exempt body. No bar apparent.
**Unexpired term**
There is no minimum unexpired term required to claim (the two-year ownership rule replaced the former 21-year floor). At 79 years unexpired the notice is valid. Note, however, that with under 80 years remaining, **marriage value becomes payable** in the premium calculation (s.56(2) and Sch.13 para.4) — this is directly relevant to part (b).
**Form and content of the notice**
The s.42 notice must be in the prescribed form (SI 1997/640 as amended), specify the proposed premium (here £14,500 as the leaseholder's valuation), the new lease terms proposed, and the nominee purchaser. Assuming those formalities are complied with, the notice is valid and the freeholder's counter-notice under s.45 (served within two months) is in time and engages the statutory negotiation period.
---
### (b) Route to Challenge the Premium
**The gap: £14,500 (leaseholder) v £36,000 (freeholder)**
The divergence at sub-80 years is typical: marriage value (the uplift in the flat's value attributable to the extended lease) is obligatorily included and split 50/50 between the parties under Schedule 13 para.4. Freeholders' valuers frequently apply higher deferment rates, higher capitalisation rates, and a larger marriage value share to inflate the premium. The leaseholder's valuer should check:
- Deferment rate applied (post-*Sportelli* [2007] the conventional rate is **5% for flats**; any material departure requires justification).
- Ground rent capitalisation rate.
- Relativity (the ratio of the unextended leasehold value to freehold value) — disputed relativities are the single most common source of large gaps at this lease length.
- Whether any development value or hope value has been loaded in without proper evidence.
**Step 1 — Statutory negotiation period**
Following the counter-notice, the parties have **two months** from the date of the counter-notice (s.48(3)) in which to agree the terms, including the premium. Active without-prejudice negotiation between valuers should proceed immediately.
**Step 2 — Application to the First-tier Tribunal (Property Chamber)**
If terms are not agreed within the two-month period, the leaseholder **must** apply to the **First-tier Tribunal (Property Chamber) — Residential Property** under **s.48(1) LRH&UDA 1993** for determination of the premium and any other disputed terms. The application must be made **before the end of six months** beginning with the date of the counter-notice (s.48(3)); failure to apply within that window results in the s.42 notice being deemed withdrawn and the leaseholder being barred from serving a further notice for **12 months** (s.42(7)).
**Critical deadline on the facts**
Counter-notice received in response to a 1 May 2025 notice: assuming the counter-notice was served on or around the last day of the two-month response period (i.e. approximately 1 July 2025), the FTT application must be issued by **approximately 1 January 2026**. The leaseholder should not allow negotiation to run down the clock; issue the FTT application in good time.
**Step 3 — FTT procedure**
The FTT will determine the premium on Schedule 13 principles. Both parties file valuation evidence; a surveyor member of the tribunal usually sits. Costs do not follow the event in the FTT in the ordinary way — each party bears its own costs unless unreasonable conduct is shown (Tribunal Procedure (First-tier Tribunal)(Property Chamber) Rules 2013, r.13). The freeholder's legal and valuation costs of the *grant* of the new lease (not the dispute) are recoverable from the leaseholder as a matter of statute (s.60), but the leaseholder's own FTT costs are not recoverable from the freeholder absent misconduct.
**Step 4 — Upper Tribunal / Court of Appeal**
An appeal on a point of law from the FTT lies to the **Upper Tribunal (Lands Chamber)** with permission, and thereafter to the Court of Appeal.
---
### Practical summary
| Issue | Position |
|---|---|
| Right to claim | Established; all conditions met |
| Marriage value | Payable (sub-80 years); split 50/50 |
| Dispute mechanism | FTT (Property Chamber) under s.48(1) |
| Outer deadline to issue FTT application | 6 months from counter-notice date |
| Consequence of missing deadline | Notice deemed withdrawn; 12-month bar |
| Costs at FTT | Own costs unless unreasonable conduct |
The leaseholder should instruct a RICS-accredited leasehold valuation surveyor experienced in Brighton comparables to review the freeholder's valuation in detail — particularly the relativity figure and deferment rate — before deciding whether to negotiate further or proceed directly to the FTT.
Grader chain
Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.
V1samba/Meta-Llama-3.3-70B-Instruct
BetterV4qwen2.5-coder-3b-instruct
BetterV5cerebras/qwen-3-235b-a22b-instruct-2507
BetterV7qwen2.5-coder-7b-instruct
BetterV8openai/gpt-4.1
BetterV9anthropic/claude-opus-4-7
BetterV12openai/gpt-4o
BetterComments
Our grader said what it said. What do you say? Comment as a guest below.
No comments yet. Be the first to say what you make of this round.