WEG vs. SEV: Understanding the Two Layers of Property Management in Germany (2026)

If you own a rental apartment in a WEG (Wohnungseigentümergemeinschaft), you’re dealing with two completely separate layers of property management. The WEG-Verwaltung handles the building. The Sondereigentumsverwaltung (SEV) handles your individual unit and your tenant. They have different legal frameworks, different contracts, different costs, and different termination rules. Confusing them, or failing to understand where one ends and the other begins, is one of the most common sources of disputes and unexpected costs for apartment investors in Germany.

This guide explains the difference, what to watch for in contracts, and how to decide whether you need an SEV at all.

What WEG-Verwaltung covers

The WEG-Verwalter manages everything that belongs to the Eigentümergemeinschaft (community of owners). This is the Gemeinschaftseigentum (common property), and it includes:

• Building structure: roof, exterior walls, foundation, load-bearing walls
• Common areas: stairwell, hallways, cellar corridors, laundry rooms, bike storage
• Building systems: central heating, shared water supply, electrical backbone, elevator
• The plot of land (Grundstück)
• Exterior elements: facade, drainage, shared garden, parking areas

The WEG-Verwalter’s duties are defined by law (Wohnungseigentumsgesetz, §§ 20, 24, 27, 28 WEG) and by the Gemeinschaftsordnung. They include:

• Preparing the annual Wirtschaftsplan (budget) and Jahresabrechnung (annual statement)
• Managing the WEG bank account and Hausgeld collection
• Coordinating maintenance and repairs on common property
• Organising and conducting the Eigentümerversammlung (owners’ meeting)
• Representing the GdWE (Gemeinschaft der Wohnungseigentümer) externally
• Managing the Instandhaltungsrücklage (maintenance reserve)

The WEG-Verwalter is the statutory representative of the entire community, not your personal property manager. They work for all owners collectively.

What Sondereigentumsverwaltung covers

The SEV manages everything inside your individual apartment, the Sondereigentum, and your relationship with your tenant. This includes:

• Tenant search and selection (Mietersuche, Bonitätsprüfung)
• Drafting and signing the Mietvertrag (rental contract)
• Collecting rent and monitoring payment
• Managing arrears and initiating collection procedures
• Creating the annual Nebenkostenabrechnung for your tenant
• Handling tenant complaints and communication
• Coordinating repairs and maintenance within your unit
• Conducting move-in and move-out inspections (Übergabeprotokoll)
• Managing the Mietkaution (security deposit)

Unlike WEG-Verwaltung, the SEV has no dedicated legal framework. The WEG does not apply to it at all. It is a purely contractual relationship governed by general civil law (§ 675 BGB, entgeltliche Geschäftsbesorgung). This means: if a task is not explicitly written into your SEV contract, the Verwalter has no obligation to do it.

Where the line gets blurry

The Teilungserklärung (declaration of partition) is the document that defines what is Gemeinschaftseigentum and what is Sondereigentum in your specific building. Read it before buying, because the boundaries are not always where you’d expect.

Common grey areas

When a damage event occurs in one of these grey areas, the question of who pays (WEG or individual owner) depends on the Teilungserklärung. If the same company manages both WEG and SEV, they’re making that determination while working for both sides, which creates a conflict of interest (more on this below).

WEG-Verwalter contracts: what to watch for

The WEG-Verwalter is appointed through two separate legal acts: Bestellung (appointment by majority resolution at the owners’ meeting) and the Verwaltervertrag (management contract).

Key contract terms to scrutinise

1. Base fee vs. Sondervergütung

The biggest trap. Many contracts define a low base fee (Pauschalvergütung) of €22–€28/unit/month, but then list extensive extra charges (Sondervergütung) for tasks you’d assume are included:

• Overseeing major renovations or Sanierungsmaßnahmen
• Issuing Verwalterzustimmung for apartment sales (§ 12 WEG)
• Handling insurance claims
• Attending court proceedings
• Extraordinary Eigentümerversammlungen

Before approving a Verwaltervertrag, calculate the realistic total annual cost including probable Sondervergütung. A contract that looks cheap at €24/unit/month can easily become €35+/unit/month once extras are triggered.

2. Contract duration and renewal

Maximum contract terms: 3 years for the first appointment, 5 years for reappointments (§ 26 WEG). Watch for automatic renewal clauses (stillschweigende Verlängerung) with short notice windows.

3. Zertifizierter Verwalter requirement

Since December 1, 2023, only appointing a certified Verwalter (§ 26a WEG) constitutes ordnungsgemäße Verwaltung. Certification requires an IHK examination. Exemptions exist for small WEGs (8 or fewer units with an owner serving as Verwalter, and fewer than one-third of owners demanding certification), as well as professionals with qualifying degrees (Immobilienkaufmann/-frau, law degree, real estate-focused university degree).

If your Verwalter is not certified and another owner demands certification, the Verwalter must be replaced. Check this before voting on an appointment.

4. Liability and insurance

Ensure the contract addresses Vermögensschadenhaftpflichtversicherung (professional indemnity insurance). Per BGH v. 27.2.2026 (V ZR 18/25), the Verwalter can be held liable for damage to individual units caused by negligent failure to maintain common property.

5. Data and document handover

The contract should specify what happens to accounts, documents, and digital access when the Verwalter changes. The outgoing Verwalter is responsible for completing the Jahresabrechnung for concluded fiscal years (BGH v. 26.9.2025, V ZR 206/24).

SEV contracts: what to watch for

Since there is no statutory framework for SEV, the contract is everything. What’s not in it doesn’t exist.

Must-have clauses

1. Complete task catalog

List every expected service explicitly:

• Tenant search and advertising (who pays for Immoscout listings?)
• Bonitätsprüfung and Schufa checks
• Mietvertrag drafting (using whose template?)
• Monthly rent monitoring and arrears management
• Annual Nebenkostenabrechnung
• Coordination of unit-internal repairs
• Übergabeprotokoll at tenant move-in/move-out
• Mietkaution management (separate trust account required)
• Meter readings
• Communication with the WEG-Verwalter for shared-property issues

If any of these are missing, the Verwalter can legally decline to do them.

2. Sondervergütung for re-letting

Many SEV managers charge a separate fee for finding new tenants, typically 1 to 2 net monthly rents (Kaltmieten). This is not always disclosed upfront. On a €900/month apartment, that’s €900–€1,800 per tenant turnover. If your tenant stays 5 years, it’s manageable. If they leave after 18 months, it’s a significant cost.

Negotiate this fee and consider whether it includes advertising costs (Inseratskosten) or whether those are charged separately.

3. Sondervergütung for renovations

Coordinating larger Sanierungsmaßnahmen within the unit typically triggers extra fees (often a percentage of construction costs or a flat hourly rate). Ensure this is capped or clearly defined.

4. Contract duration and notice period

Standard terms: 1-year contract with automatic renewal for another year. Typical notice period: 3 months before contract end. If you miss the notice window, you’re locked in for another year.

Set a calendar reminder 4 months before each renewal date.

5. Accounting and transparency

The contract should specify:

• When you receive monthly financial reports
• How quickly rental income is forwarded to you
• Whether the Verwalter holds funds in a trust account (Fremdgeldkonto) or a pooled account
• What documentation you receive at year-end for your Steuererklärung

Cost comparison: WEG-Verwaltung vs. SEV

Combined discount: When the same company handles both WEG and SEV, the SEV fee is typically lower (around €27/month netto vs. €35/month standalone) because the Verwalter already knows the building and doesn’t need separate site visits.

The dual-role conflict: same company for WEG and SEV?

Using the same Hausverwaltung for both is common and cheaper. But it creates a structural conflict of interest.

The WEG-Verwalter must act in the interest of all owners collectively and remain neutral. The SEV-Verwalter acts exclusively in the interest of the individual owner who hired them. When these interests collide, the dual-role Verwalter cannot serve both sides faithfully.

Where conflicts arise in practice

• Damage attribution: A water leak between units. Is the cause in the shared piping (WEG pays) or in the unit’s internal plumbing (owner pays)? The dual-role Verwalter determines responsibility while representing both parties.
• Cost shifting: Pushing maintenance costs to the WEG budget benefits the SEV client but harms other owners who don’t have SEV with the same company.
• Renovation decisions: The Verwalter recommending a scope of work that serves one owner’s rental interests more than the community’s structural needs.

Courts have found that a Verwalter lacks the required personal suitability when they represent individual owners’ interests at the expense of the community.

Recommendation: If you can find a competent standalone SEV provider at a reasonable cost, using a separate company is safer. If the cost premium is significant (€8–€10/month more) or no standalone provider will take a single unit, using the same company is acceptable, but stay alert to how grey-area decisions are being made.

When to hire an SEV vs. self-manage

Hiring an SEV costs roughly €300–€540/year per unit. The question is whether the time and risk you save is worth that amount.

Hire an SEV when:

• You own 3 or more rental units, especially across different buildings
• The property is geographically distant from where you live
• The building is old and maintenance-intensive
• You have difficult tenant situations (arrears, disputes, frequent turnover)
• You don’t have solid knowledge of German rental law (BGB §§ 535–580a)
• You can’t commit the time for Nebenkostenabrechnung (the most time-consuming annual task)

Self-manage when:

• You own 1 or 2 units in a building near you
• The building is newer and well-maintained
• Your tenant relationship is stable and unproblematic
• You understand the basics of Mietrecht and Nebenkostenabrechnung
• You’re willing to invest the time (estimate 3–5 hours/month for one unit including bookkeeping, communication, and annual tasks)

What self-management actually involves

Don’t underestimate the scope:

• Ongoing: Rent monitoring, tenant communication, invoice processing, bookkeeping
• Annual: Nebenkostenabrechnung (strict formal requirements, 12-month deadline per § 556 BGB), Steuererklärung preparation (Anlage V)
• Event-driven: Tenant search, Schufa/Bonitätsprüfung, Mietvertrag drafting, Übergabeprotokoll, repair coordination, arrears management, potential legal disputes
• Compliance: Mietpreisbremse rules, Kappungsgrenze for rent increases, Mietkaution in separate trust account, data protection (DSGVO) for tenant data

The legal risks of getting Nebenkostenabrechnungen wrong are real. A formally defective statement loses the landlord the right to claim additional payments from the tenant for that year, even if the tenant genuinely owes more.

If you do self-manage, tools like Vermietler can handle much of the administrative burden: rent tracking, expense categorisation, Nebenkostenabrechnung generation, and document management. That’s why we built it.

How to terminate and switch

Replacing the WEG-Verwalter

Since the WEMoG 2020 reform, the process is straightforward:

1. Abberufung (dismissal from office): Simple majority vote at the Eigentümerversammlung. No “wichtiger Grund” (important cause) needed. Any owner can request this item on the agenda.
2. Vertragskündigung (contract termination): The Verwaltervertrag ends automatically no later than 6 months after the Abberufung.

These are two separate legal acts. Abberufung alone doesn’t terminate the contract (the WEG may still owe fees). Kündigung alone doesn’t remove the Verwalter from their statutory role.

Extraordinary termination (fristlose Kündigung) is possible for serious breaches: embezzlement, gross mismanagement, refusal to call an Eigentümerversammlung. Typically requires a prior warning (Abmahnung) unless the breach is so severe that continuation is unreasonable.

Replacing the SEV-Verwalter

Much simpler. No Eigentümerversammlung or majority vote needed.

1. Send written cancellation (Kündigung) within the notice period (typically 3 months before contract end)
2. The contract ends at the expiry date
3. You don’t need to state reasons

Important: Request a complete handover of tenant files, Mietkaution documentation, rent payment records, and Nebenkostenabrechnung data well before the transition. Gaps in documentation will cause problems with the next Verwalter or with self-management.

Recent BGH rulings that matter

Key takeaways

• WEG-Verwaltung is statutory, covers common property, and is decided by the Eigentümerversammlung. SEV is purely contractual, covers your unit and your tenant, and is your individual decision.

• The Teilungserklärung defines the boundary between Gemeinschaftseigentum and Sondereigentum. Read it before buying. Grey areas (windows, balconies, supply lines) cause disputes.

• SEV contracts need explicit task lists because nothing is required by law. If it’s not in the contract, the Verwalter won’t do it. Watch for hidden Sondervergütung for re-letting and renovations.

• Since WEMoG 2020, you can dismiss the WEG-Verwalter by simple majority at any time. The certified Verwalter requirement (§ 26a WEG) is in effect since December 2023.

• Using the same company for WEG and SEV is cheaper but creates conflicts of interest. If cost allows, separate providers are safer.

• Self-management saves €300–€540/year per unit but requires time, legal knowledge, and strict compliance with Nebenkostenabrechnung rules. Tools like Vermietler can bridge the gap.

Calculate your ownership costs including management fees with our rental yield calculator, and read our guide to hidden ownership costs for the full picture of what eats into your return.