Over 15 years of experience in Munich, Bavaria & the surrounding area. Commission the best real estate agents for your property in Mammern.
Between the decision to sell and the notary appointment in Mammern, there are usually several months of work: gathering documents, reliably determining the value, finding the right buyer group, negotiating. We take over these steps completely and keep you informed of every interim status.
Instead of searching portals daily, we reverse the process: you register your profile for Mammern, we automatically match every new listing with it, and we actively contact you. No fees for searchers, no automated mass emails, no sharing of your data with third parties.
Personally by Gerhard Hahn · FREITAG® Immobilien GmbH
Over 30 years of experience as a real estate specialist
You receive a fixed schedule: valuation, documents, exposé, buyer approach, viewings, negotiation, notary. Each step with clear responsibility and realistic timelines. This way, every owner in Mammern knows at all times where we stand — and what comes next.
»Competent and trustworthy, absolutely perfect«
»Mr Freitag successfully sold my company mudis and completely surprised me with the sale price. I am still absolutely thrilled!«
»FREITAG® Immobilien helped us quickly and professionally with a financially very urgent matter. Many thanks again for that!«
Anyone looking for an experienced real estate agent in Mammern expects more than just the publication of an advertisement. Crucial factors are a realistic valuation, a suitable marketing strategy, high-quality documentation, professional communication with prospective buyers and secure contract processing. This is precisely where we come in.
As a real estate agency for Mammern, we support owners, communities of heirs, capital investors, and landlords in all phases of real estate brokerage — with clear processes and transparent advice.
Personal consultationPersonal, discreet, with over 15 years of market knowledge – your real estate agent for Mammern.
You don't have to come to us: For a personal consultation or a property valuation, your real estate agent will, of course, come to you in Mammern – discreetly, without obligation, and at an appointment time that suits you.
The following figures show how purchase prices, rents, and land values have developed in Mammern. These are average values for the entire location — the location, year of construction, and condition of a specific property can deviate significantly from these.
For Swiss municipalities, the Federal Statistical Office (FSO) does not publish square metre prices per municipality, but rather the national residential property price index IMPI. We therefore show the national index – as a reference for long-term price development in Mammern. Basis: Q4 2019 = 100.
Index level 2026: 126.8 points (Basis Q4 2019 = 100)
The national FSO index IMPI reflects the development of transaction prices for owner-occupied housing in Switzerland. As the FSO does not publish square metre prices specific to municipalities, the national index serves as a reliable reference for long-term price development — including in Mammern.
| Year | Avg. value | Change |
|---|---|---|
| 2017 | 92.2 Index | – |
| 2018 | 95.0 Index | +3 % |
| 2019 | 98.5 Index | +3.7 % |
| 2020 | 101.0 Index | +2.5 % |
| 2021 | 106.7 Index | +5.7 % |
| 2022 | 113.5 Index | +6.4 % |
| 2023 | 116.0 Index | +2.2 % |
| 2024 | 118.1 Index | +1.7 % |
| 2025 | 123.4 Index | +4.6 % |
| 2026 | 126.8 Index | +2.7 % |
| Year | Total | Detached houses | Condominiums |
|---|---|---|---|
| 2017 | 92.2 | 91.8 | 92.7 |
| 2018 | 95.0 | 94.6 | 95.3 |
| 2019 | 98.5 | 98.5 | 98.6 |
| 2020 | 101.0 | 101.2 | 100.7 |
| 2021 | 106.7 | 107.3 | 106.2 |
| 2022 | 113.5 | 115.1 | 112.1 |
| 2023 | 116.0 | 117.3 | 114.9 |
| 2024 | 118.1 | 118.6 | 117.5 |
| 2025 | 123.4 | 123.8 | 123.1 |
| 2026 | 126.8 | 127.0 | 126.6 |
Durchschnittlicher Anstieg Total 2017–2026: +3.60 % p.a.
Source: Bundesamt für Statistik (BFS) – Schweizerischer Wohnimmobilienpreisindex (IMPI) · retrieved on 2026-05-08
Buyers should factor in additional costs, any maintenance backlog, and energy standards. Especially with older properties, these factors determine the actual financial burden. We do not have access to officially reliable transaction series for Mammern. A valuation is therefore based on comparable properties in the surrounding municipalities. The district of Frauenfeld generally serves as the comparison area, as the demand profile and construction style there are most comparable to Mammern. For reasons of transparency, we do not provide price per square metre figures for Mammern as long as there is no reliable data basis.
Frequently asked questions about buying, selling, financing, and living in Mammern — concisely answered.
For owners in Mammern who wish to sell their property and continue to live in it, FREITAG® offers the classic property annuity (Immobilienverrentung) — via usufruct (Nießbrauch), Right of residence, Leaseback or Life annuity. You release the capital tied up in your house or condominium in Mammern and secure a right of residence registered in the land registry.
The model that is particularly in demand is Usufruct: You remain the economic owner, are in the first rank in the land registry, and can even rent out the property if needed. An owner-occupancy termination is contractually excluded for all four models.
Whether it's care costs, gifts to heirs, or a noticeably higher pension: We will check for owners in Mammern, free of charge, which model suits their life situation, and obtain offers from selected investors and foundations.
Entrepreneurs in Mammern who wish to sell their commercial property and lease it back use Sale & Lease-Back: They sell office buildings, warehouses or practice premises to an investor, receive liquidity for growth or consolidation, and lease the property back long-term. The location in Mammern remains unchanged.
FREITAG® accompanies the entire process: value-based valuation, selection of qualified investors, contract drafting with clear lease-back conditions — including options for repurchase and flexible terms.
We check free of charge whether your commercial property in Mammern is suitable for a Sale & Lease-Back and obtain transparent offers — without obligation and without hidden costs.
Whether a country inn, city café, hotel garni, or boarding house with an annex — for hospitality and accommodation properties in Mammern there is a specific, manageable circle of buyers. We have known and cultivated this circle for years, instead of advertising widely.
Often, leasing is the calmer path: you retain the property in Mammern your portfolio, hand over operational management, and receive ongoing income. We check the concept and creditworthiness of the tenant before the contract is concluded.
If the property is vacant or no longer profitable to operate, we examine repurposing — for example, into residential space, a boarding house, or practice premises. What is Mammern legally permissible under building law, we clarify before marketing.
Managing Director of FREITAG® Beteiligungsgesellschaft mbH
As an appraiser and real estate agent with over 30 years of experience, Gerhard Hahn knows both sides of the market: reliable valuation and the actual willingness of buyers to pay. For owners, heirs, and capital investors, he translates this into a concrete sales or letting strategy.
A reliable valuation in Mammern requires genuine comparative data and a feel for micro-location — Gerhard Hahn has internalised both after 30+ years of market proximity in Bavaria and Thurgau. Personal appointments in Mammern are an integral part of every mandate for Gerhard Hahn — no remote diagnosis, no templates.
Note: This list is based on AI-powered research (ChatGPT) of publicly available sources and does not constitute an official evaluation or recommendation. The order does not imply a hierarchical ranking.
One of the largest real estate agents in Mammern with several properties in their portfolio. Specialised in residential properties with lake views in the region.
Active real estate agent in Mammern with a focus on high-quality residential properties. Markets properties with lake views and modern amenities.
One of the largest real estate agents in Mammern with an extensive range of residential properties. Active in the brokerage and sale of properties in the region.
Visit websiteEstablished real estate agent in Mammern with a focus on residential properties. One of the largest agents in the municipality.
Real estate agent operating in the Thurgau region and Mammern. Offers sales, brokerage, and free valuations for residential properties.
Visit websiteReal estate agent in Thurgau with a focus on residential properties and property management. Manages detached houses and condominiums in the Mammern region.
Visit websiteSpecialised real estate agent for Mammern with a focus on strategic marketing and buyer selection. Provides support with the sale of properties and building land.
Visit websiteReal estate agent in Eastern Switzerland operating in Mammern and the surrounding area. Offers property searches, sales, and free valuations.
Visit websiteAre you looking for a real estate agent not directly in Mammern, but in the surrounding area? FREITAG® also serves the following municipalities in Thurgau with local market knowledge, current purchase prices, and personal advice:
Mammern is located in a border region — many of our clients compare locations across countries. These municipalities in neighbouring countries offer similar location qualities and are often the closest alternative:
Detailed analysis of the plot, year of construction, condition, and micro-location. We develop an individual marketing strategy and support the house sale up to the notary appointment.
We consider the declaration of division (Teilungserklärung), service charge (Hausgeld), energy performance certificate, reserves, and target group — and structure the entire sales process for you.
We clarify the development plan, development status, and suspected contamination in advance — this prevents price reductions during negotiations.
Third-party usability, remaining term of rental agreements, and tenant creditworthiness determine the price of your commercial property. We tailor the documents precisely to these factors.
Professional market placement, well-considered tenant selection, and legally sound documents for a smooth letting of your flat.
For houses, tenant quality matters more than the final price point. We select tenants who will look after the property long-term.
Right of residence (Wohnrecht), leaseback, life annuity (Leibrente), or usufruct (Nießbrauch) — we examine the most suitable option for you and advise on opportunities and framework conditions.
Understandable valuation as a basis for sale or letting — carried out by certified experts with regional market knowledge.
Contact us — we will advise you without obligation on valuation, marketing, and next steps.
Phone hours: Mon–Sat 09:00–20:00 · Sun & public holidays closed
| Country | Schweiz |
| Federal State | Thurgau |
| District | Frauenfeld |
| Altitude | 400 |
| Postcode | 8265 |
| Community Key | 4826 |
| Inhabitants | 659 |
| Population Change (10 yrs) | 12,3 % |
| Population density (per km²) | 121,14 |
| Proportion of foreign nationals | 27,3 % |
| Vacancy rate | 1,74 % |
| Wohnbautätigkeit (Neubau / 1 000 EW) | 3,1 |
| Total employees | 481 |
Quellen: Wikipedia (accessed on 2026-05-08) · Bundesamt für Statistik – Regionalporträts der Gemeinden (as of 2004–2020, BFS-Nr. 4826)
In Mammern, a lakeside property with nearly 3,000 square meters of land, a single-family home, and a separate guest house is for sale. The report classifies the property as a high-priced estate with direct access to the Untersee and mentions a price in the millions.
The municipality of Mammern has approved a planning credit for the expansion of the primary school. Plans include a new building and the renovation of the existing structure; the total project is expected to cost around 6.5 million Swiss francs.
A report on the Thurgau housing market highlights Mammern as a municipality with a particularly low vacancy rate. As of the reference date June 1, 2022, only one apartment was vacant there; this makes Mammern one of the municipalities with the tightest housing supply in the canton.
