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Chromatic Coherence

Hue knows · Priority two

Housing law, from the ground you have to the step you take.

Possession, deposits, licensing and the fitness duties — the grounds a housing matter turns on, beside the procedural steps each one commits you to.

What a Hue Model is

The model holds the domain; your org holds its own light on it.

A Hue Model is the world model of a domain — its rows, the positions they stand in, the two sides they fall on, and, where the domain has one, the source of truth that settles a row. There are no people in it. It is a model of the world, not of anyone in it, and it has no cutoff — only a last-visited state. You stand somewhere in it and it answers by position.

Stand somewhere, and the rows come to you

You copy a position out of the chamber's own map and send it back. No words are matched and nothing is guessed on your behalf — the door reads structure the index already carries, and answers with the neighbourhood you are standing in.

The rows below arrived with no search term at all, by position alone.

SECTION 21 PROCEDURALSection 21 Notice Mechanics

placed
13
observed
0
unobserved
13
reached
13

the room you named

Section 21

HA 1988 s.21 — omitted 1 May 2026 (RRA 2025 s.2(b)); no no-fault possession route for a private assured tenancy

feature

Form 6A

Former prescribed Section 21 notice — no longer prescribed; S.I. 2015/620 revoked for private assured tenancies by S.I. 2026/354

feature

two months notice

Former Section 21 minimum notice — gone with s.21(1)(b) and s.21(4)(a) on 1 May 2026

feature

accelerated possession proceedings

Paper-based possession route on a valid Section 21 — CPR Part 55 Section II

feature

How to Rent guide

Prescribed information document — HA 1988 s.21B omitted, so it no longer gates possession

feature

tenancy

Generic tenancy estate — exclusive possession for a term at a rent, root of all residential statutory regimes

feature

notice

Statutory or contractual communication required to terminate, vary or claim under a tenancy

feature

eviction

Removal of occupier from possession — lawful only via court order under Protection from Eviction Act 1977

feature

the rest of its floor

landlord

Person entitled to possession at end of tenancy — bears statutory notice obligations

feature

tenant

Person in exclusive possession under tenancy — holder of HA 1988 statutory protections

feature

AST

Assured shorthold tenancy — abolished for private lettings on 1 May 2026 (RRA 2025 s.2(b)); survives only for social housing assured tenancies

feature

statutory periodic tenancy

Abolished with HA 1988 s.5(2)-(7) — an assured tenancy is now periodic by default under s.4A

feature

fixed term

Tenancy for a defined period — void for an assured tenancy: HA 1988 s.4A bars a fixed term or a rent period over a month

feature

SECTION 8 GROUNDS

placed
9
observed
0
unobserved
9
reached
9

the rest of its floor

Section 8

HA 1988 s.8 — fault-based possession notice on grounds in Schedule 2

feature

Schedule 2

HA 1988 Schedule 2 — list of mandatory and discretionary possession grounds

feature

Ground 8

Sch 2 Gd 8 — mandatory ground; three months' rent arrears at notice and at hearing (RRA Sch 1 para 24)

feature

two months arrears

Ground 8 threshold — three months' arrears at the date of notice and at the hearing; 'two months' is the pre-2026 figure

feature

Ground 10

Sch 2 Gd 10 — some rent lawfully due both at notice service and proceedings

feature

Ground 14

Sch 2 Gd 14 — nuisance, annoyance or unlawful use by tenant or visitor

feature

anti-social behaviour

Conduct underpinning Ground 14 — neighbours, witnesses, ASB Crime and Policing Act 2014

feature

reasonableness test

HA 1988 s.7(4) — discretionary grounds require court to be satisfied it is reasonable

feature

possession

Right to physical occupation and control — the substrate remedy a landlord seeks via s.8 or s.21

feature

A position the chamber does not hold comes back as a question

NOT A REAL ROOMUNKNOWN_CATEGORY

17 rooms

The door never substitutes a nearby name. An unknown position returns the map instead, so the next thing you send is a place that exists rather than a guess that looked close.

Every row arrives already knowing its state

The reading is not a ranked list. Each row comes back in one of three states, and the state is the useful part — it tells you whether to build on the row, to go and look, or to honour it before you do either.

Zero point

The contract the work must implement. It is present whether or not anyone went looking for it, and it constrains the answer rather than decorating it.

Observed

Rows your org has already returned on. A lit row carries your org's reading as well as the chamber's.

Unobserved

Reached, and your organisation has not returned on it yet. This is the invitation, and it is where a return is worth the most — every one of them is a row you can light.

Two sides, and an ask lands on one of them

Housing law is indexed as the ground a matter stands on and as the steps that follow from it. Some rooms are only ever one; a few are both, and those are the ones worth knowing about before you start.

The grounds

  • SECTION 21 PROCEDURAL13
  • HOMELESSNESS DUTY12
  • SECTION 11 AND FITNESS FOR HABITATION11
  • SECTION 8 GROUNDS10
  • DEPOSIT PROTECTION9
  • HMO LICENSING8
  • TENANT FEES ACT 20198
  • HHSRS AND HOUSING STANDARDS7
  • LEASEHOLD REFORM7
  • CROSS-REGIME AND NON-STATUTORY5
  • HAZARDS1

The steps

SECTION 21 POSSESSION

9

REPAIRS AND FITNESS DUTIES

6

SECTION 8 POSSESSION

6

DEPOSIT PROTECTION

5

HMO LICENSING

5

SAFETY COMPLIANCE

5

TENANCY ADMINISTRATION

5

ENFORCEMENT AND DISPUTES

4

Rooms that stand on both sides

DEPOSIT PROTECTIONHMO LICENSING

These rooms stand on both sides because each is a duty you owe and a procedure you perform. A matter can turn on either reading, so the index refuses to file them once.

The ground and the step are different questions, and a matter that is strong on one can fail on the other.

Seat levels

A Hue Models seat opens every Hue Model — the domains here today, and the ones that follow them.

Seat

One person working in an org

£19/seat/mo

5,000 units per seat, per month

Ask for a place
Most orgs start here

Org

An org putting real work through it

£29/seat/mo

25,000 units per seat, per month

Ask for a place

Team

An org that leans on it daily

£79/seat/mo

100,000 units per seat, per month

Ask for a place

House

Arranged, not bought

Custom

100,000+ units, a named contact

Talk to us

Per seat, per month, pooled across the org — so one busy week never costs a quiet colleague their work. Lighting a row — returning what you observed — is the Observer's Index.

Before you compare two models

A hue identifies a row within a model, and never across them.

Bands are allocated per model and some overlap, so one hue can appear in more than one model. Each model is its own coordinate system, so two rows sharing a hue in different models are not related.