Where to Spend Your Budget When Renovating a Villa

When renovating a villa, spend first on what you cannot easily change later: structure, waterproofing, the roof, electrics, plumbing and insulation. Next come glazing, then kitchens and bathrooms, then the outdoor spaces that make Mediterranean life so pleasant. Save, where you need to, on things that can be upgraded later without disturbing the house, such as loose furniture and some decorative finishes.

This order of priorities is not about spending less. It is about making sure the money goes where it does the most lasting good.

Why the order matters

Every renovation runs into the same tension. The visible parts, such as the kitchen, the bathrooms and the flooring, are what owners look forward to. The invisible parts, such as wiring, pipework, roof membranes and insulation, are what decide whether the house works, stays dry and is comfortable in August and January. Once the walls are closed and the floors laid, revisiting the invisible parts means undoing the visible ones.

For a sense of overall costs, our guide on how much it costs to renovate a villa in Spain sets out indicative ranges per square metre.

1. The invisible essentials

Structure

On older villas, particularly those from the 1970s to 1990s on sloping plots in Jávea, Moraira or Benissa, check the structure before anything else: slabs, beams, retaining walls and any signs of movement or corrosion in reinforcement. A survey by an architect or aparejador is money well spent. If structural work is needed, it also affects your permit route; an architect or aparejador can confirm what applies.

Waterproofing and roofs

Flat roofs, terraces and solariums are common on the coast and are a frequent source of damp. Older tiled roofs may have tired underlayers. Heavy autumn rain episodes test every weak point, so invest in proper membranes, falls and drainage. Damp ruins finishes, so this comes before any new plaster or paint.

Electrics and plumbing

Original installations are often undersized for modern needs such as induction hobs, air-conditioning, heat pumps, electric car charging or a pool plant room. Renew wiring and the distribution board, and replace old pipework, while walls and floors are open.

Insulation

Insulation is what makes a house comfortable in both summer heat and damp winter cold, and it reduces running costs. Options include roof insulation, external insulation systems (SATE/ETICS) and insulated internal linings. Combined with an aerothermal heat pump for heating, cooling and hot water, and perhaps solar PV for self-consumption, it can change how the house feels year round. Our page on energy upgrades explains the main options.

2. Glazing

Windows and doors are where many Costa Blanca villas gain or lose the most. Thermal-break aluminium frames with high-performance glazing keep heat out in summer and in during winter, reduce noise, and resist salt air better than older frames. Large sliding doors that open the living space to the terrace and the view can change the character of a house entirely. Glazing sits in the middle of the priority list because it affects both comfort and design, and replacing it later disturbs plaster, sills and finishes.

3. Kitchen and bathrooms

Kitchens and bathrooms are where you use the house most intensively, and where quality is felt daily. As broad 2026 indications for the Costa Blanca, excluding VAT, fees and taxes, kitchens run at roughly €25,000–€80,000+ and bathrooms at roughly €12,000–€35,000+ each, depending on size and specification.

Spend on the things that are hard to change: layout, plumbing positions, ventilation, waterproofing beneath showers, worktops and good-quality hardware. Natural materials such as limestone, travertine and oak age well when specified properly. See our pages on kitchen renovations and bathroom renovations for what each typically involves.

4. Outdoor living

On the Costa Blanca the terrace is often the most used room in the house for much of the year. Shade, through pergolas, deep overhangs or retractable awnings, is the first priority, followed by level, well-drained surfaces, outdoor lighting and perhaps an outdoor kitchen. The pool and its surroundings are often part of this; our article on renovating a swimming pool on the Costa Blanca looks at the options.

A dry Mediterranean garden with olives, lavender, rosemary and gravel needs far less water and maintenance than a lawn, and suits the climate.

Where to save

Saving well means choosing what can be added or upgraded later without disturbing the finished work:

• Loose furniture and soft furnishings. These can be bought over time, once you have lived in the house and understand how you use it.
• Some decorative finishes. Paint colours, some light fittings and decorative accessories are easy to change later.
• Secondary rooms. A guest room or storage area can sometimes be finished to a simpler specification initially, provided the installations behind the walls are done properly.
• Some landscaping. Planting can be phased, as long as drainage, irrigation and lighting cabling are installed with the main works.

What not to save on: anything behind walls, under floors or on the roof, and the quality of installation. A mid-range tile laid by a skilled tiler on a properly prepared base will outperform an expensive tile laid badly.

An illustrative split of priorities

The table below is a qualitative guide to how priorities typically compare. It is not data, and every house is different; a survey and an itemised budget decide the real split.

Area	Typical priority	Why	Can it wait?
Structure, roof and waterproofing	Highest	Protects everything else	No
Electrics, plumbing and insulation	Highest	Hidden once finished; affects comfort and safety	No
Glazing and external doors	High	Comfort, energy, security and the link to the view	Rarely
Kitchen	High	Used daily; layout is hard to change later	Partly (some appliances)
Bathrooms	High	Waterproofing and plumbing must be right first time	Partly (accessories)
Terraces, shade and pool	Medium to high	Central to life on the coast	Partly (some features can be phased)
Flooring and wall finishes	Medium	Visible and durable, but specification can be moderate	Partly
Loose furniture, décor and planting	Lower at first	Easy to add over time	Yes

Plan before you spend

The most reliable way to protect a budget is a clear design and specification before the budget is fixed, with a contingency held back for what the survey cannot reveal. If you are buying, factor this in from the start; our guide to buying a villa in Spain that needs renovation explains what to check before you commit.

On a luxury villa renovation, these priorities are easiest to hold when one team owns both the design and the budget. CostaVeyra manages complete villa renovations on the Costa Blanca: we define the brief and budget with you, set the design direction, and coordinate and oversee the works delivered by our project team and selected specialists, so that what is hidden behind the walls gets the attention it deserves. Read more about how we work.

In short

• Put structure, waterproofing, roofs, electrics, plumbing and insulation first.
• Invest in good glazing; it affects comfort, energy use and how the house relates to the view.
• Spend on kitchen and bathroom layout, waterproofing and hardware rather than on details that can change later.
• Treat terraces, shade and the pool as part of the living space.
• Save on loose furniture, some finishes and phased planting, never on what is hidden behind walls.