Aster Group
Housing association; also known as Aster.
Before you bid
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Rents out about 30,883 homes in England. This is the number of tenants in rented homes it counted for its 2025/26 tenant survey.
Source: [5]
The regulator's grade
C1
The Regulator of Social Housing checks how well landlords treat tenants. It gave Aster Group grade C1 on 8 July 2026.
C1 means the landlord is doing what the regulator expects. Grades go from C1 (best) to C4 (worst).
Source: [1]
How it compares
We compared Aster Group with 71 similar landlords: housing associations, 10,000 homes or more. These are tenants' answers to the 2025/26 survey and the landlord's own records.
Overall satisfaction: 79.9% of tenants were happy with the service. That puts it in the upper middle of similar landlords. ↓ Down from top quarter in 2024/25.
Repairs and homes: in the upper middle. ↓ Down from top quarter in 2024/25.
Being heard: in the upper middle. ↓ Down from top quarter in 2024/25.
Neighbourhood: in the upper middle.
Top quarter means it did better than at least three in four similar landlords. Bottom quarter means it did worse than at least three in four.
Source: [5]
Complaints to the Housing Ombudsman
In 2025-26, the Housing Ombudsman looked at complaints about Aster Group Limited. It made 80 findings. It found the landlord at fault in 38% of them. It ordered or recommended £28,506 in compensation. 1 of the findings were severe failings.
From October 2025 the Ombudsman looks at how complaints were handled in every case. So these figures are not comparable with earlier years.
Source: [3]
Safety checks
Not all done (as at 31 March 2026):
- Asbestos checks: done for 96.8% of homes that needed them
- Water safety (legionella) checks: done for 99.5% of homes that needed them
- Lift safety checks: done for 98.3% of homes that needed them
Source: [5]
The figures, 2025/26
| Measure | Figure | Among similar landlords |
|---|---|---|
| Repairs and homes | ||
| Satisfied with repairs | 83.1% | top quarter |
| Satisfied with how long the last repair took | 82.8% | top quarter |
| Satisfied the home is well maintained | 82.0% | top quarter |
| Homes that don't meet the Decent Homes Standard | 0.1% | upper middle |
| Non-emergency repairs done within the landlord's target time | 82.8% | upper middle |
| Emergency repairs done within the landlord's target time | 90.7% | bottom quarter |
| Being heard | ||
| Satisfied the landlord listens and acts | 72.6% | top quarter |
| Satisfied the landlord keeps them informed | 81.6% | top quarter |
| Agree the landlord treats them fairly and with respect | 86.9% | top quarter |
| Satisfied with how complaints are handled | 39.4% | upper middle |
| First-stage complaints answered in time | 86.7% | bottom quarter |
| Second-stage complaints answered in time | 79.7% | bottom quarter |
| Neighbourhood | ||
| Satisfied communal areas are clean and well kept | 71.1% | upper middle |
| Satisfied the landlord helps the neighbourhood | 71.8% | upper middle |
| Satisfied with how anti-social behaviour is handled | 72.5% | top quarter |
| Shown but not compared | ||
| Satisfied the home is safe | 85.1% | |
| First-stage complaints per 1,000 homes | 61.1 | |
| Second-stage complaints per 1,000 homes | 15.1 | |
| Anti-social behaviour cases per 1,000 homes | 26.6 | |
| Anti-social behaviour cases involving hate incidents per 1,000 homes | 0.5 | |
Source: [5]
Earlier Ombudsman figures
From October 2025 the Ombudsman looks at how complaints were handled in every case. So these figures are not comparable with earlier years.
| Year | Name in the report | Findings | At fault |
|---|---|---|---|
| 2024-25 | Aster Group Limited | 78 | 50% |
Source: [2]
Where it has homes
Homes it owns in each council area, 31 March 2026. We added up the figures for each company in the group.
- Dorset: 8,179
- Wiltshire: 5,963
- Test Valley: 5,383
- Somerset: 4,213
- Bournemouth Christchurch and Poole: 654
- Camden: 573
- Swindon: 443
- Westminster: 423
- Cornwall: 366
- Eastleigh: 363
- Plymouth: 357
- East Hampshire: 261
and 52 more areas
Source: [4]
Earlier names: Synergy.
Where these figures come from
Every figure on this page comes from one of these published files. We do not change them.
- Regulator of Social Housing, Regulatory Judgements and Enforcement Notices Table (current). The file, fetched 2026-11-06. Open Government Licence v3.0.
- Housing Ombudsman Service, Landlords with individual performance reports ( xlsx ) ( xlsx, 0.39 MB) (2024-25). The file, fetched 2026-11-06. © Housing Ombudsman Service; reuse terms being confirmed.
- Housing Ombudsman Service, Landlords performance data tables ( xlsx ) ( xlsx, 0.4 MB) (2025-26). The file, fetched 2026-11-06. © Housing Ombudsman Service; reuse terms being confirmed.
- Regulator of Social Housing, Private registered providers data release (2025/26). The file, fetched 2026-11-06. Open Government Licence v3.0.
- Regulator of Social Housing, Tenant Satisfaction Measures Full Dataset (2025/26). The file, fetched 2026-11-06. Open Government Licence v3.0.