Guide
The worst housing associations in the UK (2026)
An annual, data-led view of housing associations with the most serious published Housing Ombudsman findings.
By the Landlord Record research team
Independent analysis of published Housing Ombudsman decisions. Last updated: 30 May 2026.
Reviewed against Housing Ombudsman published guidance.
This is an editorial ranking of published Ombudsman determinations.
Landlord Record is independent and is not affiliated with, or endorsed by, the Housing Ombudsman Service. We organise and analyse decisions published under the Open Government Licence.
By severe maladministration findings, London & Quadrant Housing Trust is the worst-ranked housing association in this 2026 Landlord Record guide, with 220 severe findings across 989 published decisions. That is the clearest answer if you are asking which housing association has the most serious Ombudsman record in this dataset.
This guide is not the canonical head-term league table. For the live, evergreen page targeting the broad "worst housing associations" query, use the worst housing associations page. This page is the annual editorial narrative for 2026: it explains who leads on severe findings, why that matters, and how to read the ranking fairly.
That distinction is deliberate. A live league table is useful when you want the current sortable record. An annual guide is useful when you want the story around the data: what the lead metric is, why it was chosen, how raw counts can mislead, and what a tenant, reporter or campaigner should check before quoting a landlord as one of the worst housing associations in the UK.
The phrase "worst housing association" is blunt. It can sound like a final judgement on every part of a landlord's service. This page uses it in a narrower, evidence-led sense: housing associations ranked by the most serious published Ombudsman findings available through the site's existing query functions. That keeps the claim tied to the source data rather than turning a ranking into a general verdict.
The analysis sits inside Landlord Record's current index of 16,224 published Housing Ombudsman decisions across 603 landlords, including 2,499 decisions marked as severe maladministration. Source: Landlord Record analysis of Housing Ombudsman decisions (OGL v3.0).
The 2026 severe-maladministration table
The table is built from getRanking('severe-maladministration'), filtered to
housing associations using listLandlords(). It then joins each landlord to
the same landlord record for decisions, maladministration rate and compensation. No table
numbers are typed into this page.
| Rank | Housing association | Decisions | Severe findings | Mal. rate | Compensation | Per 10k homes |
|---|---|---|---|---|---|---|
| 1 | London & Quadrant Housing Trust | 989 | 220 | 92% | £589,052 | Not available |
| 2 | Clarion Housing Association Limited | 817 | 115 | 86% | £380,781 | Not available |
| 3 | Peabody Trust | 535 | 89 | 88% | £289,652 | Not available |
| 4 | Southern Housing | 412 | 82 | 92% | £218,277 | Not available |
| 5 | Notting Hill Genesis | 427 | 73 | 86% | £205,681 | Not available |
| 6 | Sanctuary Housing Association | 359 | 65 | 85% | £193,621 | Not available |
| 7 | A2dominion Housing Group Limited | 239 | 50 | 92% | £124,647 | Not available |
| 8 | Sovereign Network Group | 114 | 48 | 92% | £44,452 | Not available |
| 9 | Hyde Housing Association Limited | 309 | 42 | 93% | £149,022 | Not available |
| 10 | The Guinness Partnership Limited | 299 | 41 | 88% | £117,893 | Not available |
| 11 | Metropolitan Thames Valley Housing Mtv | 313 | 40 | 95% | £125,733 | Not available |
| 12 | Orbit Group Limited | 204 | 35 | 89% | £126,176 | Not available |
| 13 | Stonewater Limited | 176 | 31 | 93% | £83,681 | Not available |
| 14 | Paragon Asra Housing Limited | 181 | 30 | 92% | £90,258 | Not available |
| 15 | One Housing Group Limited | 140 | 29 | 85% | £57,155 | Not available |
| 16 | Home Group Limited | 167 | 28 | 87% | £74,525 | Not available |
| 17 | GreenSquareAccord Limited | 122 | 28 | 89% | £61,651 | Not available |
| 18 | Amplius Living | 70 | 26 | 90% | £29,082 | Not available |
| 19 | Wandle Housing Association Limited | 115 | 22 | 94% | £65,845 | Not available |
| 20 | Richmond Housing Partnership Limited | 75 | 17 | 95% | £46,416 | Not available |
Source: Landlord Record analysis of Housing Ombudsman decisions (OGL v3.0).
Why severe maladministration leads this list
A "worst" list can be built in several ways. You can rank landlords by total adverse findings, total compensation, damp and mould records, or the share of decisions found against them. This annual guide uses severe maladministration because it is the most serious Ombudsman finding exposed by the existing ranking query.
Severe findings usually point to a more serious failure pattern than a lower-level service failure. They can involve prolonged delay, repeated missed chances to put things right, poor complaint handling, significant impact on the resident, or failures serious enough for the Ombudsman to mark the case at the highest adverse level. That makes severe findings a strong editorial signal for an annual 2026 ranking.
It is still not the only signal. A landlord can have fewer severe findings but a high maladministration rate. Another can have many adverse findings because it is large and appears often in the published archive. Another can have a compensation total that deserves scrutiny even if its severe count is lower. The table should prompt deeper reading, not replace it.
The advantage of leading with severe findings is clarity. Severe maladministration is not a sentiment score, a review score or a social media complaint count. It is a formal Ombudsman outcome in a published decision. For an annual editorial list, that makes it a stronger starting point than softer signals. The limitation is that it captures only cases that reached a published determination and were classified in the structured data.
That is also why the article links back to the live severe-maladministration ranking. If you need the current leaderboard, use the live table. If you need a readable 2026 explainer that can be cited, shared or used to understand the ranking, this guide gives the context around the same underlying query data.
For context, the housing association leading the overall adverse-findings ranking is London & Quadrant Housing Trust, with 914 adverse findings across 989 published decisions. Compare that with the severe ranking before drawing conclusions from either list.
Size caveat: raw counts favour big landlords
Raw counts are easy to understand, but they are not always fair. Larger housing associations manage more homes and more repairs, so more disputes can reach the Ombudsman. A large provider can therefore rank highly by volume even if its rate is not the highest. A smaller provider can look less prominent by volume but worse when you compare the share of its published decisions found against it.
That is why this table includes the maladministration rate and the per-homes column where
the data is available from listLandlords(). If the per-homes value is not
returned by the query, the table says "Not available" rather than filling the gap from
outside sources. This keeps the page reproducible from the site's existing data layer.
The fairest reading is to use the columns together. Severe findings show the most serious outcomes. Decisions show how much published Ombudsman material exists for the landlord. Maladministration rate shows how often the Ombudsman found against the landlord within those published decisions. Compensation shows the total financial redress ordered across indexed decisions. None of those fields alone is a full service-quality score.
The table also does not tell you whether a landlord has recently improved. Published decisions can relate to events that began before the decision date, and a landlord may have changed policy, staffing or repair processes after an adverse finding. Conversely, a lower rank does not prove a landlord has no serious problems. It means only that, in this dataset and on this metric, it does not lead the 2026 severe-findings list.
If you are using the ranking for research, check the landlord's profile rather than quoting the table alone. Look for repeated themes, the dates of decisions, whether the same problem appears across multiple cases, and whether compensation or orders suggest systemic issues. The headline ranking is the entry point. The decisions explain the pattern.
Method and attribution
This article uses only the existing build-time query functions listed in the brief:
getRanking('severe-maladministration'),
getRanking('worst-landlords-overall'), listLandlords() and
getGlobalStats(). The severe ranking supplies the main order. The landlord
list supplies the housing-association filter and the extra table fields.
Landlord Record is independent. The underlying source material is the Housing Ombudsman Service's published decisions, released under the Open Government Licence. We structure and analyse those determinations so readers can compare landlords, but the official finding in each case remains the Ombudsman's decision.
The page uses defensive fallbacks. If the database is unavailable at build time, the table renders an empty-state message rather than substituting manual figures. If a landlord does not have a homes denominator in the existing landlord record, the size-adjusted column is left unavailable. Those choices are less dramatic than filling gaps, but they keep the page honest and reproducible.
The ranking is also limited to landlords identified as housing associations in the existing landlord records. Other social landlords can appear in the wider rankings, which is why the live ranking pages may not show exactly the same set of names as this guide. This article answers the housing-association question, not the broader all-landlord question.
This page should be read alongside the live rankings: severe maladministration for the most serious findings, and worst landlords overall for adverse findings by volume. To check a specific provider, browse all landlord records.
What tenants can do
If your landlord appears on this list, treat it as context, not proof of your own case. Open the landlord record, read the decision summaries, and compare the themes with your issue. A ranking can show a pattern in published decisions, but your complaint still turns on your evidence, timeline and the landlord's response.
Keep dated records: reports, photographs, emails, complaint acknowledgements, repair appointments, inspection notes and any impact on your household. Follow your landlord's complaint process and ask for a clear written response. If the complaint remains unresolved and falls within the Ombudsman's remit, you can escalate it to the Housing Ombudsman.
When you complain, be specific. Say what happened, when you reported it, what the landlord did or did not do, how it affected you, and what outcome you want. If the issue is a repair, describe the defect and any failed appointments or temporary fixes. If the issue is complaint handling, explain the missed response, delay or unclear decision. A clear timeline makes it easier for the landlord, the Ombudsman or an adviser to understand the case.
If you are comparing landlords before moving, do not use this page as the only source. Look at the landlord's own performance information, local tenant feedback where reliable, the type of housing you need, and the live Landlord Record profile. A severe-findings ranking is a useful warning signal, but it is not a substitute for checking the actual homes, services and complaint history relevant to you.
For a narrower data-led answer about complaint volume, read which housing association has the most complaints? . That guide answers a different question: it ranks by upheld findings rather than using severe maladministration as the lead editorial signal.
Sources
The primary source is the Housing Ombudsman decisions archive . For the complaint process, see the Housing Ombudsman Complaint Handling Code . For the Ombudsman's severe-maladministration publications, see severe maladministration findings .
Frequently asked questions
Which is the worst housing association in the UK?
By severe maladministration findings in Landlord Record's 2026 editorial ranking, London & Quadrant Housing Trust is first among housing associations with 220 severe findings across 989 published decisions. Raw rankings are not a complete measure of service quality, so use the table context as well.
How are the worst housing associations ranked?
This guide ranks housing associations by the severe-maladministration league table, then joins those rows to landlord records for decisions, maladministration rate and compensation. It also checks the overall adverse-findings ranking for wider context.
Which housing association has the most severe maladministration?
London & Quadrant Housing Trust has the most severe maladministration findings among housing associations in this ranking, with 220 severe findings.
Are these rankings official?
The underlying decisions are official Housing Ombudsman publications. Landlord Record is independent and produces this ranking by structuring and analysing those published decisions under the Open Government Licence.
How often is this list updated?
The page is an annual 2026 editorial guide. The figures render from Landlord Record query functions at build time, while the linked live rankings update whenever the site is rebuilt with newer Ombudsman decision data.
What should I do if my landlord is on this list?
Do not rely on the ranking alone. Read your landlord profile, keep evidence of your issue, use the landlord complaint process, and escalate to the Housing Ombudsman if the complaint remains unresolved and falls within its remit.