Value and process
What is my property worth?
No calculator can tell you that reliably. With the hedonic method used by practically all online estimates, a study by the Hochschule für Wirtschaft Zürich found that only around 37 per cent of the values lie within ten per cent of the price actually paid. Mr Ruf looks at the property and discloses how he arrives at his valuation. Ausführlich →
How does a sale work?
In four steps: site visit, valuation with reasoning, sales mandate with a quiet lead-in, then notarial deed. It only becomes binding with the signed mandate – until then, nothing costs you anything. Ausführlich →
What does the sale cost me?
Our fee falls due on success, upon the notarial deed. The first valuation and the meeting before it cost nothing, even if no mandate comes of it. On top of that come notary and land register fees and the taxes. Ausführlich →
Which documents do I need?
Land register extract, plans, building insurance documents, for condominium ownership (Stockwerkeigentum) the regulations and annual accounts, for tenanted properties the tenancy agreements in the original. A sale rarely slows down over the price; mostly it is over missing papers. Ausführlich →
How long does the whole thing take?
For the entry in the land register, the Basel-Stadt Land Register and Surveying Office (Grundbuch- und Vermessungsamt) gives four to eight weeks in the normal case. Before that come marketing and notarisation, the duration of which depends on the property. In an inheritance case, registration of the succession is added. Ausführlich →
Taxes and duties
What do I pay in property gains tax?
That depends on the canton, and the two calculate in fundamentally different ways. Basel-Stadt by length of ownership: 60 per cent of the gain up to five years, falling to a uniform 12 per cent from the 25th year, starting from 30 per cent for owner-occupied properties. Basel-Landschaft by amount of gain: 3 to 25 per cent, maximum rate from a gain of CHF 120,000. Ausführlich →
Can I defer the tax?
Yes, subject to conditions. The most important case is the replacement purchase (Ersatzbeschaffung): anyone who sells a permanently and exclusively owner-occupied property and puts the proceeds into a replacement property in Switzerland used in the same way does not pay for the time being. But deferral is not exemption – the gain reduces the investment costs (Anlagekosten) of the new property. Ausführlich →
Who pays the property transfer tax?
In Basel-Stadt in principle the buyer, 3 per cent. If someone acquires a property and occupies it exclusively themselves for at least six years, it is halved to 1.5 per cent – and then, under the law, the selling party is liable for the tax. In Basel-Landschaft each side pays 1.25 per cent. Ausführlich →
Is the estate agent's commission deductible?
Yes, as selling costs – evidenced by invoice and proof of payment. In Basel-Landschaft the law expressly names the customary estate agent's commission among the allowable expenditure. We do not calculate the tax itself for you; that is the responsibility of the tax administrations. Ausführlich →
Special situations
I have inherited – can I sell immediately?
No. First the succession must be entered in the land register, and that requires a certificate of inheritance (Erbenbescheinigung) or a notarial deed of succession (Erbgangsbeurkundung). After that the community of heirs can only dispose jointly – for the sale that means unanimity. Ausführlich →
One heir does not want to sell. What then?
Any co-heir can demand the division at any time. If a property cannot sensibly be divided and the heirs cannot agree on who is to receive it, it must be sold and the proceeds divided – by auction if one heir so demands. Ausführlich →
Can I sell even though the property is let?
Yes. The tenancies pass to the buyer together with ownership; the tenants keep their agreements. Important for you: if the new owner gives notice earlier than the agreement would have allowed you to, you are liable to the tenants for the loss. Disclose all contractual terms. Ausführlich →
What do Basel's housing protection rules mean for my sale?
The sale itself does not require a permit. The decisive point is what a buyer intends to do afterwards: renovations beyond simple maintenance must be notified or approved, and an ongoing five-year rent control is entered in the land register. None of this applies in Basel-Landschaft. Ausführlich →
What applies to apartment buildings, commercial property and building land?
There the rent roll determines the price, not the kitchen. And the usual online estimates are designed for single-family houses and condominium flats – it takes someone who looks at the figures. Ausführlich →
Should I renovate before the sale?
Mostly not. A buyer will not pay you for what they want to do differently. It makes more sense to disclose what is due – especially for the heating, where in Basel-Landschaft since 1 January 2026 a renewable system has been mandatory when the boiler or the burner of a heat generator more than 15 years old is replaced, in so far as this is technically possible and economic. Ausführlich →
Can it be done without a public advertisement?
Yes, and often it is the better first step. A property that sits visibly on the market for a long time loses negotiating position. Anyone who offers quietly first can still advertise later – it does not work the other way round. Ausführlich →

Dieter Ruf
Managing Director, Madiba Immobilien AG
MAS ZFH in Real Estate Management · eidg. dipl. Immobilientreuhänder
2008–2021 Präsident der Prüfungskommission der Höheren Fachprüfung Immobilientreuhand · 2009–2020 Präsident der Schweizerischen Fachprüfungskommission der Immobilienwirtschaft
“I look at every property myself. A sound valuation needs a site visit – and a conversation about what you actually intend to do.”
Madiba has been managing and brokering property in Basel since 1964. Mr Ruf handles the sale himself, from the first valuation to the notarial deed.
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