TWGA Consulting expert appraiser network for real estate valuation in the DACH region, Grünwald near Munich

TWGA Consulting · DACH Expert Appraiser Network

Expert Appraiser Network Real Estate Valuation · DACH · since 2015

The right appraisal.
For the complex case.

TWGA Consulting refers complex valuation engagements to experienced expert appraisers within a DACH-wide partner network. The expert appraisers in the network are publicly appointed or certified under DIN EN ISO/IEC 17024 (HypZert, DIAZert, EIPOSCERT and others) and hold their own professional indemnity insurance. TWGA Consulting is a single point of contact for both sides: clients with a complex case and expert appraisers seeking a reliable network partner.

Who are you?

DACH

Network coverage

since 2015

In the market

100%

Discretion

Appraisals recognised by

Tax authorities
Courts
Banks and credit institutions
Probate courts
Publicly appointed expert appraisers

What brings
you here?

Services from a single source

DACH Expert Appraiser Network

The TWGA network comprises publicly appointed and sworn expert appraisers as well as DIN EN ISO/IEC 17024 certified colleagues from the recognised certification bodies including HypZert, DIAZert, EIPOSCERT, IQ-Zert, Hochschule Anhalt izert and Sprengnetter. The right expert appraiser for every engagement. You have one conversation; we coordinate the rest.

Legal and tax support

Specialist solicitors for inheritance law, family law and tax law, together with selected tax advisers in the TWGA network, guide you through complex situations from the initial assessment to final resolution. One point of contact for appraisal, legal and tax matters.

Typical situations

Whether inheritance, divorce, tax or bank financing: behind every case lies a specific formal requirement for the appraisal. We clarify this in advance and select the appropriate expert appraiser from the network with the qualification the procedure requires.

01

Inheritance and estate disputes

In estate disputes involving real estate, you need an independent market value appraisal that holds up in court, with the tax authority and against co-heirs. TWGA Consulting coordinates preparation by a publicly appointed or certified expert appraiser from the network.

Market value appraisal, inheritance tax, tax authority, probate court

02

Divorce and separation of assets

A market value appraisal is the basis for a fair settlement of matrimonial property equalisation. A family-law-experienced publicly appointed or certified expert appraiser is nominated from the TWGA network. A specialist solicitor can accompany the process on request.

Market value appraisal, matrimonial property equalisation, family law

03

Appraisal for the tax authority

For gift tax, inheritance tax and statutory valuation, the tax authority requires formally recognised appraisals. We clarify in advance which format applies and ensure the valuation is prepared by a publicly appointed or DIN EN ISO/IEC 17024 certified expert appraiser from the network.

Gift tax, inheritance tax, statutory valuation

04

Mortgage lending value report for banks

Banks require a recognised mortgage lending value report under BelWertV (German Mortgage Lending Value Regulation) for real estate financing. The TWGA network includes HypZert-certified expert appraisers whose reports are accepted by all institutional lenders.

Mortgage lending value, bank appraisal, real estate financing

05

Ground lease and usufruct

A ground lease, usufruct or lifetime right of residence can reduce the value of a property considerably, often by six-figure amounts. Such valuations require expert appraisers with specific experience in these rights. This specialisation is available within the TWGA network.

Ground lease, usufruct, right of residence, registered encumbrances

06

Care home, hotel, special purpose property

For care homes, hotels, boardinghouses, hospitality properties, commercial parks or listed heritage properties, the property type matters, not the appraiser's title. The expert appraiser nominated from the network is one who has valued exactly this property type for years.

Specialist appraisal, care home, hotel, special purpose properties, DCF method

Thomas Wörle, Managing Director TWGA Consulting
2015 In the market since

The right network
for your engagement.

TWGA Consulting is a specialist for complex real estate valuation engagements in the DACH region. We coordinate a growing network of publicly appointed and sworn expert appraisers as well as DIN EN ISO/IEC 17024 certified colleagues from the recognised certification bodies including HypZert, DIAZert, EIPOSCERT, IQ-Zert, Hochschule Anhalt izert and Sprengnetter. For every property type and every formal requirement there is an appropriate expert appraiser in the network.

Our core competence is specialist appraisals and complex cases. Care homes, hotels, boardinghouses, hospitality, commercial parks, listed heritage properties. Inheritance valuations with tax authority requirements, matrimonial property equalisation before the family court, mortgage lending value reports for institutional banks, residual useful life evidence for tax optimisation. Wherever a standard market value appraisal reaches its limits.

We do not simply refer. We clarify the formal requirement, select the expert appraiser with the appropriate certification and property type experience, and coordinate documents, appointments and quality assurance. You have one point of contact who takes responsibility for the outcome, regardless of who signs the appraisal.

"Appraisals must hold up. With the tax authority, in court, with co-heirs. That requires the right network, not just a certificate."

Management: Thomas Wörle. Active in real estate valuation since 2015. Focus on structuring complex cases and coordinating the expert appraiser network. Personally reachable at t.woerle@twga-consulting.de and +49 160 5196191.

DACH

Network coverage

6

Certification bodies covered

100%

Discretion

Engagements matched to your qualification.
We acquire and coordinate, you appraise.

You are publicly appointed and sworn or certified under DIN EN ISO/IEC 17024. You want to concentrate on the appraisal, not on business development and back office work. TWGA Consulting has been coordinating a DACH-wide partner network for exactly this arrangement since 2015.

Engagements matched to qualification

We refer engagements that match your property type, region and qualification profile. No wasted effort, no instructions outside your area of expertise.

Back office and client clarity

Initial contact, briefing, document pre-review, fee agreement, invoicing. You receive a fully prepared engagement.

Liability remains with you

You prepare the appraisal under your own professional indemnity insurance. TWGA Consulting refers and coordinates without interfering in your professional responsibility.

Apply to join the network Book an introductory call

What we require

  • Public appointment by a Chamber of Commerce or DIN EN ISO/IEC 17024 certification (DIAZert, HypZert, Sprengnetter, TUV, EIPOS)
  • Professional indemnity insurance with adequate coverage
  • At least 5 years of valuation practice, experience with court-grade appraisals
  • Clear regional or thematic specialisation (care home, hotel, special purpose property, specialist areas)
  • Commitment to transparent fee arrangements and clean engagement management

Admission follows a personal conversation and review of qualification documents. We select partners carefully because our network is only as reliable as its weakest member.

Residual Useful Life Appraisal

Owners who rent out a property generally depreciate the building at two per cent per year over 50 years. The German Income Tax Act, however, permits a higher depreciation rate where the actual residual economic life of the building is demonstrably shorter. This evidence is provided by a residual useful life appraisal.

The tax effect can be substantial. For an older building from the 1970s, a recognised appraisal can often achieve significantly higher annual depreciation. The appraisal costs are tax-deductible.

What matters is that the appraisal is prepared by the right expert appraiser. The tax authority recognises only appraisals from publicly appointed and sworn expert appraisers or from expert appraisers certified by one of the six DAkkS-accredited certification bodies under DIN EN ISO/IEC 17024. These qualifications are precisely what the TWGA network provides.

§ 7 IV 2

EStG enables depreciation based on a shorter actual useful life

6

DAkkS-accredited certification bodies in Germany

§ 7 IV EStG

Statutory basis for accelerated depreciation

45 sec · Residual useful life explained

Is a residual useful life appraisal worthwhile for you?

First indication in 30 seconds. No personal data required. For a reliable result, a certified appraisal from the TWGA network is subsequently needed.

Complete the five fields. The result appears immediately on the right (on mobile, directly below). For any questions, please call us: +49 160 5196191.

Typically 60 to 80% of the purchase price for existing properties.
Roof, windows, heating, facade renovation. Not purely cosmetic repairs.
Top rate 42%, wealth surcharge 45%. Plus solidarity surcharge and church tax if applicable.

Indicative annual tax saving

-

Complete the fields on the left.

This calculation follows a simplified model of residual economic life based on Annex 1 to ImmoWertV (German Real Estate Valuation Ordinance) § 4. It does not replace an expert appraisal. For rented buildings, the evidence under § 7 IV 2 EStG must be provided by a publicly appointed or DIN EN ISO/IEC 17024 certified expert appraiser. Note: the BMF guidance of 22.02.2023 was revoked on 01.12.2025. The statutory wording and the case law of the Federal Fiscal Court are now the governing authority.

Guides

01

What does a market value appraisal cost, and when do I need one?

A market value appraisal is the formal determination of the market value of a property by a qualified expert appraiser. It follows clear statutory requirements, withstands scrutiny from tax authorities, banks or courts, and is recognised by these bodies.

The most common situations: you inherit a property and the tax authority sets an excessive tax value. You are in divorce proceedings and must prove matrimonial property equalisation. A court requires an expert opinion. Or you want to be on solid ground before buying or selling.

A value indication costs on average around EUR 1,500 net and is suitable as a basis for negotiations as long as no dispute exists and no authority is involved. For tax authorities, courts or banks it carries no binding weight.

The fee for a full appraisal is governed by the fee schedules of the valuation committees. It is mandatory as soon as official bodies are involved or a dispute exists.

Not every expert appraiser is suitable for these purposes. The tax authority recognises only appraisals from publicly appointed expert appraisers or from appraisers certified by one of the six DAkkS-accredited certification bodies: HypZert, DIAZert, EIPOSCERT, IQ-Zert, Hochschule Anhalt izert and Sprengnetter Zertifizierung.

Contact: Thomas Wörle, TWGA GmbH, t.woerle@twga-consulting.de

02

Estate disputes and real estate: which appraisal do I need for the tax authority and in court?

The death of a family member brings not only grief but often complex legal and tax questions, particularly where real estate forms part of the estate. The tax authority sets a tax value that frequently exceeds the actual market value.

To prove a lower market value, you must submit an appraisal that meets the requirements of the tax authorities. The most common problem: the submitted appraisal does not carry the necessary certification. This is not a quality problem but a formal one, and it is avoidable.

Courts apply similar, sometimes stricter requirements. Errors in selecting the expert appraiser can delay proceedings, generate additional costs or result in an expensive appraisal having to be redone.

For your engagement, an expert appraiser from the network with the appropriate qualification and property experience is nominated. A specialist solicitor for inheritance law from the network is additionally available where the situation requires legal support.

Contact: Thomas Wörle, TWGA GmbH, t.woerle@twga-consulting.de

03

Divorce with real estate: how is the value fairly determined?

Where a jointly owned property is involved, an independent market value appraisal is the basis for a fair settlement. Each party has an interest in a particular outcome. Valuations from estate agents instructed by one party are rightly considered partisan in this context.

In family law proceedings there are specific features that an expert appraiser must know and take into account. Valuation dates, co-ownership shares, ongoing tenancies or mortgage encumbrances all affect the valuation and therefore the matrimonial property equalisation figure.

Family-law-experienced expert appraisers are nominated from the network whose appraisals hold up even in contested proceedings. Where legal questions remain open alongside the valuation, a specialist solicitor for family law from the network is also available.

Contact: Thomas Wörle, TWGA GmbH, t.woerle@twga-consulting.de

04

Specialist appraisals for complex properties: network and property type expertise rather than generalists

For insolvency administrators, banks, asset managers, family offices, tax advisers and institutional investors the question is not whether an appraisal is needed. The question is whether the expert appraiser is actually the right person for this specific property.

Formal qualification is necessary but not sufficient for complex properties. An appraiser who valuates residential properties competently is not automatically capable of methodologically capturing a care home, a hotel or a historic castle ensemble.

The network holds specialist expert appraisers for: care homes and social real estate, hotels and boardinghouses, hospitality properties, schools and educational facilities, listed heritage properties, lakeside properties and commercial parks.

The assignment is precise. Property and requirement are analysed, then the right specialist from the network is nominated and the instruction is coordinated. No searching, no trial and error, no subsequent quality problems.

Contact: Thomas Wörle, TWGA GmbH, t.woerle@twga-consulting.de

05

Residual useful life appraisal: higher depreciation, lower tax

Anyone who rents out a property knows the standard rule: the tax authority allows buildings to be depreciated at two per cent per year over 50 years. The German Income Tax Act does, however, permit the demonstration of a shorter actual residual economic life, thereby claiming a higher annual depreciation amount.

Concretely: an owner of a rental property with a market value of EUR 600,000 who can demonstrate a residual economic life of 20 years instead of the standard two per cent depreciates at five per cent per year, i.e. EUR 30,000 instead of EUR 12,000. The annual tax saving can amount to several thousand euros.

The current legal position

In August 2025 the German Federal Ministry of Finance published a draft bill that would have significantly tightened the requirements. In November 2025 the Ministry withdrew these plans without replacement. The legal position remains unchanged: both publicly appointed and DIN EN ISO/IEC 17024 certified expert appraisers are recognised.

The decisive factor remains the qualification of the expert appraiser. The BMF guidance of 22.02.2023, which imposed strict formal requirements for the evidence, was revoked on 01.12.2025. The governing authority is once again the statutory wording of § 7 para. 4 sentence 2 EStG and the case law of the Federal Fiscal Court.

Contact: Thomas Wörle, TWGA GmbH, t.woerle@twga-consulting.de

Another question?

I will answer it in
a personal conversation.

Book a call

Free checklist for advisers

When does the client need a specialist appraisal rather than a standard expert appraiser?

Twelve warning signs from practice. For tax advisers, solicitors and notaries advising clients with real estate questions. With examples, risk assessment and specific recommendations. PDF, eleven pages, free of charge.

  • 01Hotel, care home, boardinghouse, listed heritage, special purpose property
  • 02Specific provisions from BGB, EStG, BewG and ImmoWertV 2021 (German Real Estate Valuation Ordinance)
  • 03Liability risks for the advising professional identified
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Tell us
what you need.

Four short steps. We read every briefing personally, match it to the appropriate expert appraiser in the DACH network and respond within 24 hours with an initial assessment and a fee framework.

In 4 short steps you describe your case. You do not need to fill in anything you do not know. We respond within 24 hours with a concrete proposal.

Step 1 of 4

What is your reason for getting in touch?

Step 2 of 4

What exactly is involved?

Step 3 of 4

Background & Timeframe

Step 4 of 4

Who are you?

Briefing prepared.

To ensure your briefing reaches Thomas Wörle personally, please choose one of the following three options. You will receive an initial assessment and a fee framework within 24 hours.

Your briefing to copy

If the email button does not work (e.g. because no email client is configured), copy the text and send it manually to t.woerle@twga-consulting.de.

< 24 h

Initial assessment

100 %

Discretion

DACH

Network coverage

Personal contact: t.woerle@twga-consulting.de  ·  +49 160 5196191  ·  Südliche Münchner Str. 60C, 82031 Grünwald