Hello everyone,
I am currently planning the construction of a turnkey modular house and have shortlisted two providers from Poland, both offering interesting models in the range of 100–115 m² (1,075–1,237 sq ft):
1. DMDmodular – Model Smart House B115bM
I look forward to any contributions and shared experiences.
Thank you very much and best regards, Manja
I am currently planning the construction of a turnkey modular house and have shortlisted two providers from Poland, both offering interesting models in the range of 100–115 m² (1,075–1,237 sq ft):
1. DMDmodular – Model Smart House B115bM
- Living area: approx. 115 m² (1,237 sq ft), 2 modules
- Turnkey delivery including building services engineering
- Optional heat pump, mechanical ventilation, etc.
- ISO-certified manufacturing
- Living area: approx. 110 m² (1,184 sq ft)
- Heat pump + photovoltaic system planned
- Turnkey handover offered
- Has anyone already built with DMDmodular or Modulhaus HAPPY?
- How was the planning, project management, delivery, and assembly process?
- Are there known issues with building permits / planning permission, transport, or warranty?
- What is the quality like in terms of interior finishing, technical installations, energy efficiency, etc.?
- Are there specific differences compared to German providers?
I look forward to any contributions and shared experiences.
Thank you very much and best regards, Manja
Hi Manja,
Both companies you mentioned are well established in the market, with DMDmodular operating more internationally and being fairly transparent regarding certifications like ISO. With Modulhaus HAPPY, it’s worth taking a closer look at the technical details of the building envelope and building services, especially the photovoltaic package. Have you checked whether both providers offer German-speaking contacts for the building permit / planning permission process and after-sales support? This can make things a lot easier if issues arise.
The topic of building permits strongly depends on your location – often you will need structural calculations and detailed foundation plans in German. Polish companies sometimes provide only the bare minimum here. For transportation, it’s important to clarify in advance whether the modules will be delivered as a whole or in sections, and how they will be craned on site. Warranty claims can be difficult to enforce in practice, so securing these contractually is absolutely crucial.
Do you have any special requirements for the final fit-out, such as sound insulation or automation? This is often where the difference between these providers and German prefab home manufacturers becomes clear...
Good luck!
Both companies you mentioned are well established in the market, with DMDmodular operating more internationally and being fairly transparent regarding certifications like ISO. With Modulhaus HAPPY, it’s worth taking a closer look at the technical details of the building envelope and building services, especially the photovoltaic package. Have you checked whether both providers offer German-speaking contacts for the building permit / planning permission process and after-sales support? This can make things a lot easier if issues arise.
The topic of building permits strongly depends on your location – often you will need structural calculations and detailed foundation plans in German. Polish companies sometimes provide only the bare minimum here. For transportation, it’s important to clarify in advance whether the modules will be delivered as a whole or in sections, and how they will be craned on site. Warranty claims can be difficult to enforce in practice, so securing these contractually is absolutely crucial.
Do you have any special requirements for the final fit-out, such as sound insulation or automation? This is often where the difference between these providers and German prefab home manufacturers becomes clear...
Good luck!
What do you expect from these houses?
These modular houses are designed as holiday homes, which they explicitly state on their website (DMD).
Basically, they are comparable to those from Germany. If you see these houses as a low-cost alternative to a residential home, you might be a bit disappointed with the living quality. They are effectively built living boxes, with coated walls, possibly more plastic than anything else. I have personally stayed in such houses during vacations. The foundation is typically a strip footing or similar, not comparable to a concrete slab foundation, as there is hollow space underneath.
Price-performance ratio: certainly fair if you expect what you actually get. However, many additional costs come up, where in Germany you might lack the right contact person—for example, for the building permit / planning permission, foundations, and so on. The price at Happy-Haus is for a shell house.
What can happen is that you might not get financing for these houses. Considering the fuss some people make when financing a timber frame house from a German manufacturer, this is understandable.
There are always interested parties and inquiries about these modular houses here in the forum. But I have never heard of anyone actually building such a house privately.
These modular houses are designed as holiday homes, which they explicitly state on their website (DMD).
Basically, they are comparable to those from Germany. If you see these houses as a low-cost alternative to a residential home, you might be a bit disappointed with the living quality. They are effectively built living boxes, with coated walls, possibly more plastic than anything else. I have personally stayed in such houses during vacations. The foundation is typically a strip footing or similar, not comparable to a concrete slab foundation, as there is hollow space underneath.
Price-performance ratio: certainly fair if you expect what you actually get. However, many additional costs come up, where in Germany you might lack the right contact person—for example, for the building permit / planning permission, foundations, and so on. The price at Happy-Haus is for a shell house.
What can happen is that you might not get financing for these houses. Considering the fuss some people make when financing a timber frame house from a German manufacturer, this is understandable.
There are always interested parties and inquiries about these modular houses here in the forum. But I have never heard of anyone actually building such a house privately.
Hello Nauer, hello ypg,
thank you very much for your feedback.
I am actually looking for an affordable alternative to building a single-family house in Germany. I have contacted both companies and requested the relevant information. Before making a decision, I would definitely like to see such a house in person.
Let’s see what they reply.
thank you very much for your feedback.
I am actually looking for an affordable alternative to building a single-family house in Germany. I have contacted both companies and requested the relevant information. Before making a decision, I would definitely like to see such a house in person.
Let’s see what they reply.
Manja123 schrieb:
I am actually looking for an affordable alternative to building a single-family house in Germany. Okay, then I would definitely avoid going with a foreign builder and instead focus on German modular house manufacturers. At least there you get legal support that is actually useful, so it doesn’t turn into a never-ending story when it comes to financing and building regulations (building permit / planning permission).
There are plenty of disadvantages. A very big one is the lack of storage space – you might not even be able to properly store your clothes, let alone hobby equipment if you have children. Soundproofing is also not really a topic here, which could become an issue from a building code perspective.
Basically, the construction companies that work with prefabricated building methods are quite similar but designed for permanent living. Unlike modular houses, they offer proper rooms instead of just sleeping spaces. It’s very hard for a family to fully settle in: nobody can find a suitable place to retreat, furniture is basically included as part of the package, but if you want something more customized, you might get frustrated even with a simple 40cm (16 inches) IKEA shelf, because there is no space for it. The kitchen is fine for making sandwiches but not really for hosting guests. The bathroom and shower are also limited to just functional use.
Don’t get too optimistic: what is enough for weekend use is not enough for permanent everyday life. Of course, a 90m² (970 sq ft) modular house is fine for two people, but not for four. Desks, for example, are missing. And if you think it’s still better than an 86m² (925 sq ft) rented apartment, that may be true, but you give up a basement, the advantages of renting, and you pay permanently for something that is worth less compared to a proper house.
If you choose this because you can’t afford a normal house: a six-figure amount or close to it will still be added for the foundation slab, incidental construction costs, and various permits. First, talk to a financer to see if something like this can even be financed.
Manja123 schrieb:
Before making a decision, I would definitely visit one of these houses. Then just take a holiday in a holiday park – there, these chalets, mobile homes, bungalows, and so on are popping up like mushrooms.
Preferably in the cold and wet autumn to test the air quality.
Manja123 schrieb:
I am actually looking for an affordable alternative to building a single-family house in Germany.ypg schrieb:
These modular houses are designed as holiday homes, and they explicitly state this on their website (DMD).What makes building in Germany expensive are the regulations (which also apply to imported products) and the fact that a permanent residence is evaluated differently than a "fixed tent" or a temporary structure. Advantages from favorable exchange rates or low wages can no longer be realized here. The Polish are not naive and understand the value of Western currency. They use that knowledge just like the Dutch do, often underestimated by the Germans. Cheap shopping doesn’t work that way or can even backfire.https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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