Renovation explained without jargon
Real prices, Spanish paperwork and what we actually find on site. Written so you can compare quotes knowing what you are looking at.
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In short
What is this blog?
62 articles explaining Spanish property and building practice to owners who did not grow up with it. They cover the things that catch foreign buyers out: the cédula de habitabilidad, the habitation certificate you need to sell or rent legally; the comunidad de propietarios, the owners association whose rules and voting decide what you may touch in a shared building; and the derrama, a one-off levy the comunidad can impose on you for communal repairs regardless of whether you agreed. Written in plain English by the people doing the work, and several conclude that the honest answer is to do nothing yet.
Articles
Everything we have written
Each article comes from a question clients ask before deciding. No showroom figures.
Breakfast bar dimensions in a Spanish flat
It is the first thing people ask for when opening up a kitchen, and the first thing that gets built wrong. Usually by two centimetres too many in height or twenty too few in circulation.
Ducted air conditioning in a Spanish flat
It is the system that looks best in a renovated flat and the one that most constrains the project. It is decided before ceilings close, never after.
Cheap fitted kitchens: what “fitting included” covers
The advertised price of a kitchen with fitting included is almost never the price you end up paying. Not because anyone is lying, but because “fitting” means a joiner’s day of work, not a renovation.
VAT on renovations in Spain: 10 % or 21 %
Two invoices for the same kitchen can differ by eleven percentage points of tax without a single thing about the work having changed. What decides the rate is the building, the buyer and the proportion of materials — never the contractor.
Renovating with children or pets in the flat
Most of a renovation is compatible with family life. A handful of days are not, and they are known weeks in advance — which is exactly what makes them manageable.
Renovation permits in Barcelona, explained
Not every renovation needs a licence. Barcelona has an immediate filing for minor works, and picking the right one is the difference between starting next week and starting in two months.
Catalan vault floors: what they mean for your flat
If your Barcelona flat predates the 1950s, the floor under your feet is almost certainly a Catalan vault. It is not a defect — it is the system that holds up the Eixample. But it decides half of your renovation before you draw a plan.
Microcement in Barcelona: cost and where it works
It is in every design magazine and half of all quote requests. It earns its reputation — but only applied well, in the right places, on the right substrate. And in a Barcelona period building, the substrate is in charge.
Custom fitted wardrobes: cost and what to specify
The first surprise for most foreign buyers: Spanish flats are usually sold with no wardrobes at all. The second: the joinery you add is opened and closed thousands of times a year, and it is where badly placed savings show fastest.
Painting a flat in Spain: paint types, coats and cost
The cheapest trade with the biggest visual return — and the one where the quote hides the most, because everything that matters happens before the roller touches the wall.
Terrace waterproofing: when it is due and how it is done
The stain on the downstairs neighbour’s ceiling never appears in year one. By the time it shows, water has been travelling inside the slab for a while.
Phased renovation in Spain: how to plan it
Renovating in phases is not renovating in pieces. The difference between the two is a plan — and it is the difference between spreading the cost and paying twice.
Renovation contracts in Spain: what to include
The contract is not a formality to get the work started: it is the document that decides who pays for every surprise. From 1,500 km away, it is also your main lever.
Small kitchens in Barcelona flats: making 5–8 m² work
Period flats in Barcelona put the kitchen at the back, next to the gallery, with whatever metres were left over. They cannot be stretched — but they can be worked.
Internal staircases in Spanish duplexes: types and sizes
The staircase is the most expensive piece of furniture in a duplex and the only one you cannot return. It gets decided once — with the regulations and the floor structure in front of you.
Storage in a Spanish flat: altillo, trastero, built-ins
Spanish flats are sold with no built-in storage at all — no closets, no basement, no attic. Where it goes instead is a small vocabulary lesson and a planning job.
Cooker hood types in Spain: how to choose
The hood is chosen for looks and suffered for airflow. In a Spanish flat there is a prior question the showroom never asks: where can the air actually go?
Indirect LED cove lighting in a Spanish flat
Walk into a well-renovated Barcelona flat at dusk and the light seems to come from nowhere. That is a foseado — and it is decided before the ceiling closes, not after.
Wood floors in Spanish kitchens and bathrooms
Continuous wood through the whole flat is a legitimate design decision. The problem is not the wood — it is the day a flexible hose starts weeping behind a unit while nobody is in the flat.
Rustic modern bathrooms in Spanish flats
Rustic modern works when the texture is real and the shapes are current. Spanish period flats start with an advantage: part of the texture is already in the building.
Pladur headboards: niches, light and sockets
In Spain the word pladur means plasterboard, and a pladur headboard is where the light, the sockets and the bedside storage end up — with no cables on the floor.
Kitchen sink types: which one to choose
The sink is decided before the worktop, not after: the mounting type dictates which worktop materials are possible and how the stone shop cuts it.
Tax relief on renovating your main home in Spain
Not every renovation gives tax relief, and the ones that do demand specific documents. This is worth knowing before the works start, not at tax time.
Replacing a bathtub with a shower in Spain
It is the most requested bathroom job in Spain and the one most often sold as "done in a day". It can be done well and fast, but it is worth knowing what sits behind the tub first.
Removing gotelé and smoothing walls
If you have bought a flat in Spain and the walls look like porridge, that is gotelé. Removing it is the cosmetic job with the best value for money there is, and also the dirtiest.
What a kitchen renovation quote actually includes
Two kitchen quotes showing the same final figure can contain very different work. The gap is almost never the units — it is what goes behind them.
Kitchen tiles in Spain: what to choose, what to avoid
The splashback is the most looked at and most cleaned surface in the home. Almost every regret comes from the grout, not from the tile.
Renovating a small 3 or 4 m² bathroom in Spain
In a four-metre bathroom nothing is spare. Decisions here get made with a tape measure, not with a catalogue.
Room dividers: what actually separates
Separating without closing is the most requested move in flat renovations. The right question is not which divider looks best, but what you actually need to separate: sight, sound or both.
Walk-in wardrobe: real minimum sizes
An undersized walk-in wardrobe is worse than a good fitted one: it takes metres off the bedroom without adding capacity. These are the numbers below which it stops making sense.
What piso diafano means in a listing
Diafano is the most used word in Spanish property listings and the least understood by foreign buyers. It means free of obstacles — a space without internal partitions — and it can describe two very different things.
Pladur: the drywall in your Spanish quote
Pladur appears in every Spanish renovation quote and confuses every foreign owner. It is simply a brand of plasterboard that became the generic word — and well executed, it beats brick partitions at almost everything.
Cost to renovate a 70 or 100 m² flat in Barcelona
Price per square metre is useful for orientation and misleading for decisions: several of the biggest line items cost roughly the same in a 70 m² flat as in a 120 m² one, and they are exactly what breaks the quick mental maths.
Covering kitchen tiles without ripping them out
Spanish kitchens are tiled floor to ceiling, and ripping that out in a period building is never a small job. Covering the tiles instead is quick and legitimate — as long as you know which systems survive what sits behind a sink.
Lacquer the doors or replace them?
Nearly every flat bought in Barcelona comes with dark varnished doors from another era. Lacquering them white is the most visible improvement per euro that exists — on the right doors. On the wrong ones it is money thrown away.
The renovation mistakes owners regret most
Very few renovation mistakes are dramatic. Most are small decisions taken quickly, in the wrong order, that you then live with for fifteen years.
Open or closed kitchen: how to decide
The decision is presented as a matter of taste. It is mostly a matter of how you cook, how the flat is built, and what you will do with the property in ten years.
Is underfloor heating worth it in Barcelona?
The most comfortable heating system there is, and the one that fits worst into an existing Barcelona flat. Both statements are true at once.
How to gain space in a small flat
Small flats rarely lack space. They lack usable space, and the difference is almost always the corridor, the doors and the ceiling height nobody has used.
Neighbour’s leak in Spain: who pays
A stain appears on the ceiling. What you do in the first two days decides whether an insurer pays for it or you do.
Soundproofing or thermal insulation first?
Thermal insulation and acoustic insulation are treated as one item and behave as opposites. Buying the wrong one is the most common way to spend real money and feel no difference.
What a derrama is and who pays it
A meeting notice arrives proposing a six-figure façade project. If you own a flat in a Spanish building, this is the document that decides your next few years of costs.
Choosing windows for a Barcelona flat
The window is the weakest point of almost every flat’s envelope. Replacing it properly is the single best comfort investment there is, and the most frequently botched.
Neighbour noise: what actually works
Noise from neighbours is the single most common complaint in Barcelona flats, and the one most often solved badly — because people start building before identifying which kind of noise they actually have.
Where saving on materials costs you double
Saving money on a renovation is entirely legitimate. Saving it in the wrong place is what makes people open the same wall twice in five years.
Is an air source heat pump worth it here?
It is the most efficient heating system available, and it does not fit in most Barcelona flats. Both of those statements are true at once, which is why the sales pitch and the survey so often disagree.
The best time of year to renovate
The calendar affects the real duration of a Barcelona renovation far more than most foreign owners expect, and it is the one variable you can control for free simply by choosing a start date.
Lighting: decided on site, not afterwards
Lighting transforms a home more than any finish does, and it is the thing owners most often regret not having thought about while there was still time to change it.
Tourist flats in Barcelona: the licence problem
The right question is not how to renovate the flat. It is whether the flat can legally be used that way at all — and in Barcelona the answer is usually no.
Staying in the flat while the work happens
Staying put saves the cost of temporary accommodation, and it lengthens the job and raises the price of the work itself. Here are the real numbers on both sides.
Damp: finding where the water is coming from
Painting over a damp patch solves nothing: it comes back within six months. The first job is establishing where the water is actually coming from.
What a bathroom renovation costs in Barcelona
The most asked question and the worst answered. Here is the breakdown by trade, not a showroom figure.
How to compare renovation quotes without getting it wrong
The cheapest quote is rarely the cheapest. It is the least complete, and the difference appears when you can no longer change contractor.
Buying a flat in Barcelona to renovate: what to check
The problems that make a renovation expensive are visible before you buy — if you know where to look. Most buyers do not.
Renovation cost per square metre in Barcelona
Price per square metre is the most quoted and least defined figure in the trade. Two firms can both say the same number and be describing completely different projects.
What a kitchen renovation costs in Barcelona
A kitchen is two projects sharing a room: the building work and the furniture. Most budget shocks come from pricing one and forgetting the other.
Cédula de habitabilidad: the certificate you cannot let without
It is a single sheet of paper that decides whether your flat can legally be lived in, let or sold. Most overseas owners discover it exists at the worst possible moment.
Renovating to let: tourist or long-term?
Renovating to live in and renovating to let are different projects. What is an indulgence in your own home is a recurring maintenance cost in a rental.
How long a renovation really takes in Barcelona
Almost every overrun we see was decided before the first wall came down. The programme is not broken on site — it is broken at the ordering stage.
The most expensive renovation mistakes
None of these mistakes has anything to do with taste. Every one of them is about the order in which things were done.
The energy certificate in Spain, explained
Every flat advertised for sale or rent in Spain must display an energy letter. Most owners treat it as a formality — until they discover which works would have changed it.
Damp in Barcelona flats: the four types
Painting over damp costs you money twice: the paint, and then the repair you should have done first. Everything depends on which of the four it is.
Frequently asked
About this blog
We write them from what we see on site in Barcelona: real defects, real budgets and the questions clients ask before deciding.
They are indicative ranges for Barcelona and the metropolitan area. The binding quote is always fixed after the technical visit.
Yes. A significant part of our client base is not Spanish-speaking, and the whole process can run in English.
Next step
Got a specific question?
We answer on WhatsApp with no obligation, in English. The technical visit is free.
Clients
What clients say after their renovation
Rated 5.0 from 14 Google reviews. All real, from real projects.
★★★★★
“Doy un 10 la verdad con el servicio que me han prestado en una reforma de un piso en Barcelona capital, gente muy seria y responsable, gracias.”
Araks SahakyanJuly 2026
★★★★★
“Quedé encantada con la atención y la calidad del trabajo. Se nota que cuidan los detalles y cumplen con lo que prometen.”
Ana RiveraApril 2026
★★★★★
“Servicio muy profesional. Me explicaron todo con claridad y el trabajo quedó perfecto.”
Ana AlemanMarch 2026
★★★★★
“Si estas buscando profesionales responsables para hacer tu reforma, es el lugar indicado. Especializados en reformas integrales con la mejor atención personalizada. 100% recomendados.”
Daniel GarganoFebruary 2026
★★★★★
“Muy buen trabajo, ha realizado un trabajo muy profesional, ha cumplido en plazo y en calidad.”
Francisco PiñeirosAugust 2025
★★★★★
“Muy buenos profesionales, con excelente resultado.”
Esther DiezJune 2026