How Many Bathrooms Is Too Many?

Following a discussion in the office recently, a colleague mentioned her son is buying his first home. As we browsed through online property listings, arguably one of the most enjoyable forms of house hunting without leaving your chair, we noticed that many of the properties within his budget were traditional terraced homes. It immediately brought back memories of my grandmother’s house, complete with its old brick outhouse and outside toilet. It’s remarkable to reflect on just how much our homes, and our expectations of them, have evolved over the years.

Few areas of the home illustrate this better than the bathroom. A century ago, many British homes relied on an outside WC at the end of the garden. Today, it is not uncommon to find a four-bedroom house with four ensuite bathrooms, a family bathroom, and an additional cloakroom. The question is not just how many bathrooms we need, but how modern housing has adapted to accommodate them.

The original Victorian and Edwardian terraced houses that still dominate many towns were never designed for multiple bathrooms. Plumbing systems were basic, and living space was prioritised over sanitary facilities. As indoor plumbing became widespread, bathrooms were often squeezed into existing layouts, frequently at the expense of a bedroom or storage area. For much of the 20th century, one bathroom served the entire household, and this was not unusual.

The rise of the ensuite bathroom has changed both expectations and architecture. New homes are now designed around plumbing rather than having it added as an afterthought. Bedrooms are often positioned back-to-back to allow bathrooms to share pipework and drainage systems, reducing construction costs and making multiple bathrooms practical. What was once a luxury feature has become a standard selling point.

From a structural perspective, the growth in bathroom numbers has significant implications. Bathrooms are among the most expensive rooms to build because of the plumbing, ventilation, waterproofing, and drainage requirements involved. Valuable floor space is also consumed. In many new-build homes, the space taken by ensuite facilities might once have been used for larger bedrooms, cupboards or family living areas.

Yet there are obvious benefits. Larger families, multigenerational households, and home-working arrangements have increased demand for private facilities. A family bathroom, an ensuite, and a downstairs cloakroom can dramatically reduce the morning rush and improve convenience.

The issue arises when practicality gives way to excess. Some modern properties contain 5 or 6 bathrooms despite being occupied by only a couple of people. While these arrangements may add prestige and appeal in the property market, they also increase maintenance costs and can leave substantial parts of a house under-used.

The contrast with the outside WC is remarkable. Older generations who crossed a cold yard on a winter’s night simply to reach the toilet would be amazed by today’s modern bathroom facilities. The progression from a single outdoor loo to multiple ensuites reflects rising living standards, advances in building technology, and changing expectations of privacy.

So, how many bathrooms is too many? Structurally and practically, most households function perfectly well with 2 or 3. Beyond that, the answer is less about necessity and more about preference and lifestyle. The bathroom has evolved from a basic household requirement into a statement of comfort and luxury.