Investment Property in Mainz: Numbers, Locations, and an Honest Calculation

It depends on build year, price, and financing. Mainz has a very tight market, but the rent brake limits rent. A 1970s apartment reaches about 3.7–4.1% gross; a new-build about 2%. With financing, you'll usually pay extra monthly, even after taxes.

Gross approx. 3.7% for a €2,992/m² apartment with index rent (€9.27/m²), or 4.1% at the rent brake limit (€10.20/m²). For new-builds at €8,200/m², it's about 2.1% with index rent.

In 2023/24, existing condos averaged €3,623/m² (without parking). By district, averages ranged from €2,710/m² in Marienborn to €4,239/m² in Drais, reaching €7,010/m² in top city center locations. New-builds averaged €7,943/m² with parking in 2024.

Yes. The ordinance applies in Mainz until Dec 31, 2029. New leases may not exceed the local comparative rent by more than 10%. Existing contracts have a 15% cap over three years. New-builds first used after Oct 1, 2014, are exempt.

Most existing apartments were sold in Gonsenheim and central districts in 2023/24, followed by Bretzenheim and Finthen. Students prefer the center/campus area; families prefer Finthen or Hechtsheim. Check the rent index for specific address quality.

Rhineland-Palatinate charges 5.0% transfer tax. Notary and land registry with financing are about 1.5–1.9%. Without a broker, costs for a €194,480 price and full financing are about €13,200 (approx. 6.8%).