Round #985

18 May 2026, 22:34· hr-law· Meta-Llama-3.3-70B-Instruct· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
3 / 0 / 0
Journey weight
255
Lightshift ΔL

Prompt

How much notice does my landlord have to give me on a Section 21? My fixed term ended last month and they handed me a letter on Saturday saying I need to leave.

Zero-point index (what the engine surfaced)

ZPI-ZPI-0001 | 2026-05-18T22:34:53Z How much notice does my landlord have to give me on a Section 21? My fixed term ended last month and they handed me a letter on Saturday saying I need to leave. ZERO POINT — 3 entries (structural invariants) ● hsl(224.91, 100%, 15%) Section 21 notice validity [contract] ● hsl(78.03, 100%, 15%) prescribed information served [contract] ● hsl(16.90, 100%, 15%) How to Rent guide served [contract] UNOBSERVED — 0 entries (implied truths) OBSERVED — 0 entries (explicit in request) COMPLEXITY │ 3 entries │ spread: 0° │ band: LOW

Baseline response (no ZPI)

In England and Wales, if your fixed-term tenancy has ended and you're now on a periodic tenancy (also known as a "statutory periodic tenancy" or "rolling contract"), your landlord must provide you with a minimum of 2 months' written notice using a Section 21 notice. Since your fixed term ended last month, and you received the Section 21 notice on Saturday, you should check the notice to see what date it says you need to leave by. To calculate the notice period, you should count 2 months from the date the notice was given to you (Saturday). The notice period must end on the last day of a tenancy period (e.g., if your rent is paid monthly, it would be the last day of the month). For example, if you received the notice on Saturday, 6th of the month, and your rent is paid monthly, the earliest date you could be required to leave would be the last day of the month, 2 months later (e.g., 28th/29th/30th/31st of the month, depending on the month). However, I would recommend seeking advice from a local authority, housing association, or a citizens advice bureau to confirm your specific situation, as the rules can be complex and subject to change. They can help you understand your rights and options. Additionally, it's essential to note that the Section 21 notice must be in a specific format and include certain information, such as: * The address of the property * The date the notice is given * The date the tenancy will end (at least 2 months after the notice is given) * A statement that the landlord is giving you notice under Section 21 of the Housing Act 1988 If the notice doesn't meet these requirements, it might be invalid, and you should seek advice on how to proceed.

Enhanced response (with ZPI)

In England and Wales, a landlord must provide a minimum of 2 months' notice for a Section 21 notice, which can be served after the fixed term has ended. Here is a simple C# code snippet to calculate the minimum notice period: ```csharp using System; public class Section21Notice { public static int GetMinimumNoticePeriodInDays() { return 2 * 30; // 2 months, assuming a month is approximately 30 days } public static void Main(string[] args) { int minimumNoticePeriodInDays = GetMinimumNoticePeriodInDays(); Console.WriteLine($"The minimum notice period is {minimumNoticePeriodInDays} days."); } } ``` This code calculates the minimum notice period in days, assuming a month is approximately 30 days. However, please note that the actual notice period may vary depending on the specific circumstances and the laws in your area. It's always best to consult with a legal professional for personalized advice. Additionally, for a Section 21 notice to be valid, the landlord must have complied with certain requirements, such as providing the tenant with a valid Energy Performance Certificate (EPC), a gas safety certificate, and the prescribed information, as well as serving the How to Rent guide. If these requirements have not been met, the notice may be invalid. In your case, since the fixed term ended last month and you received the notice on Saturday, you should review the notice carefully and seek advice from a legal professional or a local authority to determine its validity and your next steps.

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
Better
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Worse
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Worse
V9anthropic/claude-opus-4-7
Worse
V12openai/gpt-4o
Same

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