Apartment sub-management. When Karin Weber checks her smartphone, she only sees a short message: „Rent received. No outstanding requests.“ That's all she needs - because the sub-administration takes care of everything.
Many landlords are familiar with the problem: the apartment is rented out, but the costs remain high. Rent collection, repair requests, operating costs - all of this costs time, nerves and is fraught with legal pitfalls. The good news is that there is a solution that takes care of all these tasks - and offers full transparency for owners.

What exactly is subadministration?
The management of an individual apartment is known in the real estate sector as Subadministration is the term used. Other common terms are Subadministration, Object management or Special property management. This form of management includes the management of the Special property within a community of owners, for example coordinating repairs, communicating with tenants or taking on organizational tasks. It is distinguished from the classic Property management which is responsible for managing the entire building and the communal areas.
The Subadministration is therefore a specialized service for rented condominiums. While traditional property management exclusively Common property the stairwell, roof or outdoor facilities - the sub-administration takes care of the concrete apartment and the current tenancy.
Karin Weber, who is very busy at work, decided to make a change after losing a day's vacation with a blocked drain in her rented apartment: sub-management instead of self-organization.
Prerequisite: The owner(s) of the apartment must be authorized to commission the service.
Specific sub-administration services
| Range | Services |
|---|---|
| Rental management & payment transactions | Rent proposal, index adjustment, income and expenditure accounting, dunning & debt collection, deposit management, monthly or quarterly rent forwarding |
| Communication & support | Contact person for tenants, coordination of repairs & professionals, key management, claims settlement |
| Tenancy agreement & change of residence | Lease renewals, management of terminations, lease entries & exits, deposit management |
| Additional services | Preparation of tenancy agreements (for new tenancies), handovers & returns with protocol |
To the complete overview of services on our website
What is included - and what is not?
The monthly flat rate for sub-administration covers all ongoing activities. This includes communication, payment processing, dunning and handovers. Not included are
- Legal disputes (e.g. judicial eviction)
- Costs for external service providers (e.g. professionals, emergency services)
- New rental of the apartment
Five clear advantages of subadministration
| Advantage | Description |
|---|---|
| 1. professional payment transactions | Regular index adjustment, billing and dunning handled reliably |
| 2. relief in the event of damage | Coordination with professionals & property management |
| 3. clear contact persons | Your tenants contact the sub-administration directly - no telephone terror for you |
| 4. clean handovers | Legally compliant protocols for moving in and out |
| 5. time saving & transparency | You keep an eye on everything - without wasting time |
How to commission a sub-administration: step by step
| Step | Measure |
|---|---|
| 1. make a request | Online contact form |
| 2. initial consultation | Clarification of apartment, rental status and desired services |
| 3. signing of the contract | Official submanagement contract with service description |
| 4. handover of the documents | Tenancy agreement, contact details, keys, property management information |
| 5. start of support | Communication with tenants is taken over |
Who is subadministration suitable for
- Owners of old or new apartments in Salzburg or Vienna
- Investors with an investment apartment - secure income & tax-compliant
- Landlords with little time or residing abroad
- Everyone who values transparency & control - without having to become an administrative expert themselves
Karin Weber often felt overwhelmed by her rented apartment - but since she started working with KROY Immobilien, she has been enjoying her weekends again.
Avoid common mistakes - our practical tips
| Error | Better this way |
|---|---|
| Write reminders yourself | We take over the dunning process completely for you |
| No index adjustment | Is regularly checked & implemented by us according to MRG guidelines |
| Unclear key management | Precise documentation for handovers incl. protocol |
| No central contact person | Your tenants contact our team directly |
Why landlords opt for sub-management
More and more landlords in Austria are opting for sub-management - and for good reason: the number of legal requirements, tax obligations and ongoing tasks has increased significantly in recent years. If you only own one or two apartments, you don't want to have to deal with utility bills or repair requests on a daily basis - instead, you want professional support.
Sub-management is a model that is particularly suitable for individual rented condominiums within a larger property. Traditional property management is only responsible for the general property - such as the stairwell, heating, elevator and outdoor facilities. But what happens in the apartment itself? This is where sub-management comes into play: it deals specifically with all aspects of the tenancy, from the rent bill to communication with the tenant.

Conclusion: Sub-administration with KROY Immobilien - fair, simple, reliable
Karin Weber no longer has to write e-mails to tenants or the property management company - we take care of that. If you also want to manage your condominium Efficient, legally compliant and with little effort our sub-administration is the perfect solution.
Request a personal consultation now
What is sub-management of an apartment?
Sub-administration is the professional management of individual condominiums that are rented out. It takes care of all tasks relating to the tenancy - from rent assessment to tenant communication.
How does sub-management differ from property management?
While property management looks after the common property of a building (stairwell, roof, etc.), sub-management relates exclusively to the individual property - i.e. your specific apartment.
What services does KROY Immobilien offer in sub-administration?
Among other things, KROY Immobilien handles the dunning process, rent forwarding, coordination of repairs and handovers with minutes. You can find a complete overview above in the article.
Who may commission a sub-administration?
Only the owner of the apartment may appoint a sub-manager - provided the existing tenancy agreement permits this.
Are reminders also accepted in the event of late payment?
Yes - dunning is an integral part of our services. We take care of payment reminders, index adjustments and deposit management.
How does the handover to the sub-administration work?
After an initial meeting, the contract is signed. You then hand over the relevant documents to us and we start providing support - including tenant communication.