Bungalow with in-law apartment floor plan: division overview
Short answer: A bungalow with in-law apartment floor plan divides the single-story area into a large main apartment (open living area plus two to three rooms) and a self-contained in-law apartment of around 30 to 60 qm with its own kitchen, own bathroom and separate entrance. Here you currently find 0 larger bungalows starting from 135 m². These manufacturer prices apply without building plot and construction ancillary costs.
The bungalow is almost predestined for the in-law apartment: Because all rooms lie without thresholds on one level, the ELW can be designed ideally barrier-free - for example as an age-appropriate apartment for parents or grandparents. Decisive is the clear separation of both units: own access, own kitchen, own bathroom. Thus the in-law apartment remains independently usable and - where building-law permitted - rentable. Read more about the basic form in the Bungalow floor plan overview, the complete topic overview for single-level living is bundled in the prefabricated house bungalow.
Floor plan variants for a bungalow with in-law apartment: division and what they suit
| Variant | Division | Suits |
|---|---|---|
| Separate entrances, side by side | Main and ELW next to each other, each with own front door on different building sides | Clear separation, ideal for rental |
| L-shaped bungalow with ELW in the leg | ELW in the short L-leg, main apartment in the long tract, shared inner courtyard | Families with relatives in the house |
| ELW with internal connecting door | Lockable door between the units, otherwise separate | Flexible use as guest/care apartment |
| Compact ELW as extension | Small, self-contained unit on the house side with own access | Home office, guests or small rental apartment |
The house prices on this page are catalogue from prices of the providers (ancillary costs +15–20 %). Calculate your realistic total sum including building plot in the cost calculator.
Living area splits: This is how main and in-law apartment are divided
How large main and in-law apartment turn out depends on the need: If the ELW is only to be a guest or care room, around 40 qm is sufficient. For a permanently habitable or rentable apartment 50 to 60 qm with own living kitchen and two rooms is more realistic. The following table shows proven splits for common total areas.
Example living area splits in the bungalow with in-law apartment (guide values)
| Total area | Main apartment | In-law apartment |
|---|---|---|
| 150 m² | ca. 110 m² (3 rooms + living) | ca. 40 m² (1.5 rooms + bathroom) |
| 170 m² | ca. 120 m² (4 rooms + living) | ca. 50 m² (2 rooms + bathroom) |
| 190 m² | ca. 130 m² (4 rooms + living) | ca. 60 m² (2 rooms + bathroom + living kitchen) |
Important: For a real, independent in-law apartment, kitchen, bathroom and access should be completely separate. A pure apartment in apartment solution without own kitchen is usually not considered an independent residential unit under building law. Whether the self-finishing is financially worthwhile, best calculate with the cost calculator.
Separate entrances: How the units are cleanly separated
An own, lockable access is the core feature of any in-law apartment. In the bungalow there are several elegant solutions: separate front doors on different building sides, a shared vestibule with two apartment doors or - with the L-shaped bungalow - one entrance per L-leg. An internal connecting door is possible, but should be lockable so the separation remains clear. With the L-shaped bungalow floor plan the ELW can be accommodated particularly well in its own building leg.
The prices of the individual bungalows depend strongly on size, fit-out level, equipment and energy standard. To the house price always add building plot, development, building permit and external installations - how that works is shown by the guide to the house construction costs.
Legal short notes on the in-law apartment
Whether a second residential unit is permissible is regulated by development plan and state building regulations. Common stumbling blocks are additional parking spaces, energy requirements and the separate recording of consumptions. These points should be clarified early with the building office and - in case of rental - with the tax advisor:
- Check development plan: Is a second residential unit on the building plot permitted at all?
- Clarify parking spaces: For the ELW many municipalities require an additional parking space proof.
- Plan separate meters: own meters for electricity, water and heat facilitate billing and rental.
- Secure independence: own lockable entrance, own kitchen and own bathroom make the ELW independently usable.
- Clarify tax and subsidy beforehand: rental, relative use and subsidized residential units have different rules.
- Think of barrier-free: ground level shower, door widths from 90 cm and movement areas of 1.50 m make the ELW age-appropriate.
- Check building plot size: The bungalow with ELW needs significantly more area due to the single-level construction method.
Note
These are general orientation notes, no legal or tax advice. The specific requirements differ depending on federal state, municipality and building plot - check them before planning with the responsible authorities.
0 large bungalow houses for an in-law apartment
These larger bungalows and L-shaped bungalows from 135 m² offer enough space for a separable secondary apartment. They come from our curated database and are sorted by catalogue "from" price in ascending order (houses without price indication are at the end). All images, floor plans and detailed information come from the manufacturers - you plan the ELW together with the provider in the floor plan.
Smaller bungalows without secondary apartment in comparison
You do not need a second residential unit? Then a more compact bungalow is often sufficient. Couples and small families will find what they are looking for with the Floor plan Bungalow 100 qm successful, the family sweet spot is at the Floor plan Bungalow 120 qm. Ground-level living in old age is explained on the page Bungalow floor plan for seniors. All other layouts are bundled in the Floor plan overview, the house type is explained on the page Bungalow as prefabricated house.
Compare suitable offers for your bungalow with secondary apartment
Answer a few short questions about living area split, ELW use and region - we match them with verified manufacturers and send you suitable free bungalow offers. Non-binding and free of charge.


