You do not always need to demolish in order to transform

There is a conversation that recurs at our Valencia studio with almost weekly regularity. A client arrives — typically the owner of a flat in L’Eixample or one of the rehabilitated buildings of Ruzafa — firmly convinced that their bathroom needs a full renovation. That the tiles must be hacked off, the plumbing replaced, the toilet relocated and everything started from scratch.

And sometimes they are right. But many other times, they are not.

What we have learned after designing dozens of bathrooms is that there exists an intermediate territory that almost nobody considers: strategic renewal. A set of targeted changes that, well chosen, achieve 80% of the visual and functional transformation with barely 30% of the budget of a complete renovation. It is not magic; it is knowing where the real impact lies.

According to sector data compiled by the National Association of Ceramic and Building Material Distributors (Andimac), 42% of bathroom renovations in Spain during 2025 were partial updates, not full refurbishments. The trend is clear: an increasing number of homeowners are seeking the balance between transformation and financial efficiency.

In this guide we shall break down the seven changes that, based on our experience, generate the greatest impact in a bathroom without the need for major construction. With real budgets, design criteria and the honesty to tell you when it truly is time to go for the complete renovation.

The 7 changes that transform a bathroom

1. Replace the taps

If we had to choose a single change, this would be it. The tap is the element you touch most, see most and that most defines the character of a bathroom. Replacing standard chrome taps with tapware in brushed black, natural brass or matt gold instantly transforms the perception of the space.

A matt black tap on a white basin creates a visual contrast that elevates everything around it. Suddenly, the same old tile looks as though it were chosen on purpose. Grohe offers its Colours line in finishes such as brushed graphite or cool sunrise at reasonable prices. If you are looking for something more exclusive, our article on premium taps details options from Dornbracht, Fantini and Axor.

Estimated cost: €400–1,200 for the complete set (basin + shower). Installation is straightforward if existing water connections are maintained, which is usually the case.

2. Update the mirror

The mirror is the natural focal point of any bathroom. Every morning, it is the first thing you look at. And yet, most bathrooms in Valencia — even those renovated relatively recently — carry a flat rectangular mirror, glued to the wall, with no frame or personality.

Replacing it with a piece that has its own presence changes the visual composition of the entire bathroom. A large round mirror (80–100 cm diameter) with peripheral LED backlighting acts as a design anchor. A mirror with a black metal or brass frame establishes a dialogue with the tapware and unifies the aesthetic. Pay attention to proportions: the mirror should not exceed the width of the vanity, although round mirrors allow greater compositional freedom.

Estimated cost: €200–800. Quality backlit mirrors with integrated demister sit at the upper end of the range, but the investment is worthwhile.

3. Upgrade the lighting

We would venture to say that lighting is the most undervalued change on this list. And at the same time, the one that generates the greatest emotional impact. A bathroom with a central ceiling fitting in cool white light is a functional space. The same bathroom with indirect lighting, lateral wall sconces by the mirror and an LED strip beneath the vanity is an experience.

The key lies in moving from the concept of “illuminating the bathroom” to “creating layers of light.” Major construction is not required: an adhesive LED strip under the wall-hung vanity, two sconces beside the mirror and a bulb change to 3000K (warm white) already make a notable difference. We have written a comprehensive guide on bathroom lighting and atmosphere creation that details this approach.

Estimated cost: €300–900. Quality LED strips (CRI >90, dimmable) cost between €40 and €100 per metre. Designer wall sconces, between €80 and €300 per unit. An electrician can complete the installation in half a day.

4. Replace the vanity unit

Floor-standing vanity units belong to another era of design. A wall-hung vanity frees the floor visually, simplifies cleaning and brings a contemporary lightness that transforms the perception of the space. If you also add a lower LED strip, the vanity appears to float. It is a technique we use in designs such as Organic Minimalist and White & Natural Wood, and the effect in person is far more striking than any photograph conveys.

Installation requires a load-bearing wall (brick, concrete or reinforced plasterboard), but does not involve moving plumbing if the drain position is maintained.

Estimated cost: €600–2,000 with installation included. Upper-mid-range vanities in finishes such as natural oak, walnut or matt lacquer offer an excellent quality-to-design ratio.

5. Add an accent cladding

You do not need to change every tile in the bathroom. Sometimes, intervening on a single wall is enough to redefine the entire space. In interior design this is called an “accent wall”: a surface treated with a different material that acts as a visual focus and breaks the monotony.

The options are wide-ranging: a large-format tile in a contrasting tone, a strip of microcement over the existing tiles, or the most accessible option — a specialist bathroom paint in a colour with personality (sage green, petrol blue, soft terracotta) applied to the wall that is not in direct contact with water. The wall behind the basin is the natural candidate: it is the most visible and has the least water exposure.

Estimated cost: €400–1,500 depending on material. Paint is the most economical option (€200–400); a quality ceramic cladding with professional installation can reach €1,500.

6. Change the accessories

It is the smallest change on the list and, proportionally, the one with the greatest visual return. The bathroom accessories — towel rail, toilet roll holder, robe hook, soap dish, toilet brush holder — are the details that close the composition. And when they are not coordinated with each other or with the tapware, the bathroom conveys a sense of provisionality that no other change can compensate for.

The rule is simple: all accessories in the same finish, and that finish should echo the tapware. Matt black with matt black. Brushed brass with brushed brass. This material coherence creates a sense of a considered design that elevates the whole. Roca offers complete coordinated collections in multiple finishes at accessible prices.

Estimated cost: €150–500 for the complete set. It is the investment with the best cost-to-impact ratio on the entire list.

7. Replace the shower screen

The shower screen is one of those elements we tend to ignore until we compare it with something better. A screen with thick chrome-plated profiles and textured glass belongs to the nineties. A screen of transparent tempered glass with minimal profiles — or entirely frameless — belongs to today.

Visually, a frameless screen enlarges the perception of space by not interrupting the line of sight. Functionally, modern screens with anti-limescale treatment are infinitely easier to maintain. For small bathrooms — which in Valencia, frankly, are the majority — a fixed walk-in screen without a door is an extraordinary option if you have at least 80 cm of shower width.

Estimated cost: €400–1,200. A fixed screen of 8 mm tempered glass with anti-limescale treatment and minimalist profiles sits around €600–800, installation included.

When you genuinely need a full renovation

We would be dishonest if we did not say that there are situations where a partial update is not enough. These are the scenarios where, from experience, we recommend going directly for the complete renovation:

Plumbing problems. If the pipes are lead or galvanised iron, if there are hidden leaks behind the walls or if water pressure is irregularly low, changing the taps will not solve the underlying problem. The plumbing is the invisible infrastructure of the bathroom, and when it fails, one must intervene at the root.

Structural damp and mould. We are not talking about surface marks that wipe away with bleach, but damp that returns time and again and perpetually blackened grout. That indicates a waterproofing problem that can only be resolved by removing the cladding.

A dysfunctional layout. If the shower is 60 cm wide or there is no room for a vanity with decent storage, no cosmetic change will compensate for a poorly resolved layout. Sometimes, gaining 20 cm by moving a partition wall transforms more than any premium tap.

A bathtub you want to convert to a shower. This intervention requires moving drains, levelling the floor and re-waterproofing. It is a partial renovation, yes, but one that involves construction work.

The budget for a partial renovation

The great advantage of a strategic renewal is its budgetary flexibility. It is not necessary to implement all seven changes at once. They can be prioritised according to impact and available budget.

Basic renewal (taps + accessories + mirror): €750–2,500. Three changes that can be completed in a single weekend and that already produce a visible transformation.

Intermediate renewal (the above three + lighting + shower screen): €1,450–4,600. Requires an electrician and professional screen measurement, but remains an intervention without major construction.

Complete renewal (all seven changes): €2,450–8,100. If upper-mid-range materials are chosen, the most common range sits between €3,000 and €6,000.

To put these figures in context: a full bathroom renovation in Valencia currently sits between €12,000 and €25,000 depending on finishes, according to 2025 market data. The strategic renewal offers, therefore, a substantial transformation at a fraction of the cost.

Frequently Asked Questions

Can I change the taps without construction work?

Yes, provided the new fittings use the same water connections as the previous ones, which is standard with conventional connections. A plumber can replace the entire set in a morning. The exception is wall-mounted concealed taps, which do require opening the wall.

How long does a partial bathroom renovation take?

It depends on the scope. A basic renewal (taps, mirror, accessories) can be completed in a day. If we include a vanity, shower screen and lighting, the timeframe extends to three to five days. In any case, we are talking about times far shorter than the three to four weeks typical of a full renovation.

Is it worthwhile to partially renovate a bathroom I plan to fully renovate in a few years?

It depends on the time horizon. If the full renovation is planned for the next twelve to eighteen months, it probably does not make sense. But if we are talking about three to five years, a strategic renewal improves daily quality of life during that period, and some elements (taps, mirror) can be reused in the future renovation.

How do I know which changes will have the most impact in my specific bathroom?

Every bathroom is different. Generally, bathrooms with neutral finishes respond very well to a tap and accessories change (the contrast is immediate), while bathrooms with heavily dated tiles benefit more from an accent cladding that redirects attention. Ideally, a professional assessment of the space will provide the answer.

Strategic renewal is not a compromise: it is an intelligent decision for those who understand that transformation does not always require demolition. At Azulia we work with both approaches — partial and full — because we understand that every bathroom, every budget and every moment in life calls for a different response.

If you would like to calculate the cost of a complete renovation for your bathroom, our budget calculator will give you an initial estimate in just a few minutes. And if you prefer us to assess in person which changes would have the greatest impact in your space, our studio in Valencia is open for consultations without obligation.