Renovating an apartment in a tenement – what to watch out for in old buildings?

26 December 2025

Renovating an apartment in a tenement building is a completely different story than renovations in a new block or development. The tenement houses in Łódź have their unique atmosphere, but also specific technical issues , which can surprise even experienced investors. Before you start the renovation, it is worth knowing what to pay special attention to , to avoid costly surprises. 1. Condition of the installations – the biggest risk in tenement buildings In many tenement buildings, the installations: electrical, water and sewage, gas date back several decades. They are often installed chaotically, without documentation, and do not meet today's safety standards. What does this mean in practice? Renovation almost always requires: replacement of the electrical installation, reconstruction of water risers, adjusting the installation to the new layout of the apartment. This is an element on which it is not worth saving . 2. Crooked walls, ceilings, and floors – the norm, not the exception In tenement buildings: walls are rarely perfectly straight, ceilings can be uneven, floors may "wave" or be sloped. When planning a renovation, one must account for: straightening walls, self-leveling pours, additional preparatory work. A well-executed renovation in a tenement begins with solid preparation of the substrates , not with aesthetics. 3. Ceilings – wooden or concrete? In older tenement buildings, wooden ceilings are very often found, which require: thorough technical assessment, reinforcements, appropriate soundproofing. Not every floor or heavy structure will be possible to execute without interfering with the construction. Here, experience and common sense are needed , not schemes from new investments. 4. Moisture and ventilation The moisture problem is one of the more common issues in old buildings. Causes may include: lack of insulation, leaky risers, poor ventilation. During renovation, one must: check the source of moisture, ensure proper ventilation, use appropriate materials. Masking the problem with paint or drywall is a mistake that will quickly backfire . 5. Formalities and approvals – easy to forget about this In tenement buildings, regulations often apply: community rules, restrictions regarding load-bearing walls, conservation requirements (especially in the center of Łódź). Before work begins, it is worth: checking what can be changed, reporting planned work, avoiding conflicts with the administration and neighbors. 6. Why is it worth choosing an experienced team? Renovating a tenement is not a place to learn the trade. A team is needed that: knows the realities of old buildings, can react to unforeseen situations, advises the best solutions, not just follows orders. A well-planned renovation allows one to preserve the character of the interior , while also adapting it to contemporary comfort standards. Summary Tenement buildings have a soul, but they require common sense, experience, and good organization of work . If you are planning to renovate an apartment in a tenement in Łódź or its surroundings, the key to success is: a reliable technical assessment, a realistic budget, a proven renovation team. Thanks to this, the renovation will not become a source of stress, and the apartment will gain a new life – without compromises and unpleasant surprises.

 

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