Landlord Record

Rankings · Updated 2026

The worst housing associations in the UK

Ranked from 18,208 published Housing Ombudsman determinations — by upheld findings of maladministration, severe findings, and compensation ordered. Built only on the Ombudsman’s own record.

How to read this. The first table ranks by the number of upheld findings — the biggest landlords appear high simply because they own the most homes. The second ranks by maladministration rate, a fairer measure. Look at both. Journalists and researchers can also download the league table as CSV.

Most upheld maladministration findings

# Housing association Upheld Severe
1 London & Quadrant Housing Trust £864,960 · 82% 907 117
2 Clarion Housing Association Limited £469,137 · 70% 648 31
3 Peabody Trust £426,645 · 72% 444 45
4 Southern Housing £309,792 · 83% 399 38
5 Notting Hill Genesis £307,449 · 68% 348 23
6 Metropolitan Thames Valley Housing (MTV) £174,751 · 85% 305 9
7 Sanctuary Housing Association £253,628 · 69% 283 21
8 Hyde Housing Association Limited £194,723 · 79% 276 17
9 The Guinness Partnership Limited £176,061 · 75% 248 10
10 A2dominion Housing Group Limited £174,602 · 83% 226 27
11 Paragon Asra Housing Limited £121,520 · 82% 161 16
12 Stonewater Limited £121,459 · 77% 155 5
13 Orbit Group Limited £137,753 · 73% 153 12
14 The Riverside Group Limited £75,831 · 76% 149 5
15 Home Group Limited £102,329 · 72% 134 6
16 Sovereign Network Group £98,049 · 85% 132 4
17 Places for People Group Limited £104,320 · 84% 118 7
18 One Housing Group Limited £79,641 · 73% 107 13
19 Wandle Housing Association Limited £74,309 · 83% 99 16
20 Sovereign Network Homes £97,278 · 82% 97 11
21 GreenSquareAccord Limited £75,345 · 70% 96 8
22 Onward Homes Limited £67,798 · 75% 82 4
23 Torus62 Limited £51,607 · 65% 73 2
24 Abri Group Limited £38,336 · 71% 73 2
25 Richmond Housing Partnership Limited £67,603 · 85% 70 12

Highest maladministration rate (20+ decisions)

The share of each landlord’s decisions in which the Ombudsman found against it — a fairer measure than raw volume.

# Housing association Mal. rate Severe
1 Richmond Housing Partnership Limited 82 decisions 85% 12
2 Metropolitan Thames Valley Housing (MTV) 358 decisions 85% 9
3 Sovereign Network Group 155 decisions 85% 4
4 Hexagon Housing Association Limited 47 decisions 85% 6
5 Curo Places Limited 38 decisions 84% 4
6 Places for People Group Limited 141 decisions 84% 7
7 Accent Housing Limited 55 decisions 84% 3
8 Wandle Housing Association Limited 119 decisions 83% 16
9 A2dominion Housing Group Limited 272 decisions 83% 27
10 Origin Housing Limited 59 decisions 83% 4

See also our severe maladministration, highest compensation and worst damp & mould rankings, or browse every landlord.

Questions, answered

Frequently asked questions

Which housing association has the most upheld complaints in the UK?

By volume of upheld (maladministration) findings in published Housing Ombudsman determinations, London & Quadrant Housing Trust has the most — 907 adverse findings across 1,106 decisions, including 117 of severe maladministration. Larger landlords naturally accumulate more findings, so we also rank by maladministration rate below.

How is the "worst housing associations" ranking calculated?

It is built entirely from the Housing Ombudsman's published determinations (18,208 decisions). The main table ranks by the number of upheld findings of maladministration; a second table ranks by maladministration rate for landlords with at least 20 decisions, which is fairer to smaller providers. We never go beyond what the Ombudsman decided, and every landlord links to its full record.

Does a high number of findings mean a housing association is the worst?

Not on its own. The biggest landlords manage hundreds of thousands of homes, so they receive — and have upheld — more complaints in absolute terms. Maladministration rate (the share of a landlord’s decisions found against it) and severe maladministration findings give a fuller picture. Use both tables together.

Where does this data come from?

Directly from the Housing Ombudsman Service’s published determinations, released under the Open Government Licence v3.0. Figures update as new decisions are published. Each landlord page links back to the original determinations.