A Spanish townhouse — a casa adosada — is the hybrid in the market: you own the building and usually a small plot, but you share party walls with the neighbours and often belong to a community of owners with its own fees and rules. Here is what makes a townhouse purchase different, and the legal checks that stop the shared parts becoming your problem.
A townhouse in Spain — known as a casa adosada when it is attached on one or both sides, or a terraced house when it sits in a row — looks like the best of both worlds. You get a house with its own front door, usually a small garden or patio and sometimes private parking, but at a price below a detached villa and with less to maintain. For many expat buyers it is the natural choice: more space and privacy than an apartment, less ground and cost than a standalone home.
The catch is that a townhouse is legally a hybrid, and the purchase needs to be checked as one. You typically own the building and the plot it sits on, which feels like buying a villa. But you also share party walls with your neighbours, and in most modern developments the townhouse forms part of a community of owners with a shared pool, gardens, private roads and the fees and rules that come with them. So the due diligence has to cover both the things you own outright and the things you share — and it is the shared elements that most often trip buyers up, because nothing in the brochure tells you the loft conversion next door was never licensed or that the urbanisation's roads were never adopted by the town hall.
The line between private and communal is where townhouse disputes start. Knowing exactly where it falls is the first job of the conveyancing.
You own the building itself and, usually, the plot it stands on — the structure, the interior, and any private garden, patio or parking that is registered to your title. This is the part that feels like buying a villa, and it needs the same boundary and registry checks any house purchase would.
The walls you share with the houses on either side (medianería) are jointly owned and jointly maintained with your neighbours. They are not simply "yours", and that affects what each side can do to them — drilling, insulating, extending or building against them all have rules.
In most developments the pool, communal gardens, private roads, gates, lighting and external building fabric belong to the community of owners. You pay fees towards them and are bound by community rules — even though you live in a house, not a flat.
The single most common surprise for buyers from the UK or Ireland is discovering that a house can sit inside a community of owners at all. In Britain a terraced house is usually freehold and standalone in law; in Spain a modern townhouse development is frequently set up as a comunidad de propietarios, with shared facilities, an annual budget and a set of statutes that bind every owner. That is not a defect — it is how the shared pool and gardens are funded and run — but it means a townhouse comes with obligations a freestanding house does not, and you need to know them before you sign.
The defining feature of a townhouse is the shared wall, and in Spanish law that wall (the medianería) is presumed to be jointly owned by the properties on each side. Both neighbours have the right to use it and both share the duty to maintain it. That sounds simple until something goes wrong — and with townhouses, sound, damp and structural movement travel between homes far more readily than buyers expect.
Common party-wall flashpoints include noise transmission through a poorly insulated dividing wall, damp or water ingress that originates next door, cracks that appear when one neighbour carries out works, and disagreements over who pays to repair a wall that serves both houses. Where a neighbour wants to build higher, attach a structure to the shared wall, or open it up, the rules on what each side may do without the other's consent become important. None of this is visible on a viewing, which is why the conveyancing should establish the condition of the shared walls, whether any recent works have affected them, and whether there is any history of dispute with the adjoining owners. Where a boundary or a shared wall is already contested, our guidance on boundary disputes in Spain sets out how these are resolved.
One of the most practical questions on a townhouse is deceptively simple: what is actually mine? The garden behind your house may be private and registered to your title — or it may be a communal garden that you merely have the right to use, or a private garden subject to community rules on what you can build, plant or pave. The same applies to parking. A space may be privately owned and recorded on the title, allocated to your house by the community but not owned, or simply first-come-first-served within the urbanisation. Each of those is a different legal animal, and they are routinely described loosely by sellers and agents.
This matters for two reasons. First, value: a townhouse with a private, titled garden and an owned parking space is worth more, and easier to resell, than one where those are communal or merely allocated. Second, freedom: if a "garden" is communal, you cannot wall it off, build a pool in it or extend into it without the community's agreement. The conveyancing should confirm, from the title and the community statutes, exactly which outdoor areas you own, which you merely use, and what you are permitted to do with each. Getting this clear before completion avoids the all-too-common dispute where a new owner builds or fences something they were never entitled to.
Townhouses are altered constantly. A loft converted into a third bedroom, a garage turned into a living room, a glazed-in terrace, a garden room or a pool added to the patio — these are exactly the improvements that make a townhouse attractive, and exactly the ones most likely to have been built without the right licence. Because a townhouse has its own roof, garden and walls, owners treat it like a house and build freely; but in Spain almost any structural change needs a municipal works licence, and unlicensed work does not become legal simply because years have passed.
When you buy, you take on the property as it is — including any unauthorised extension. If the works were never declared, the registered description of the house will not match what is physically there, which can cause problems with mortgages, resale and sometimes the town hall. Some old, out-of-time works can be regularised through an AFO or property legalisation process, but not all, and the cost and feasibility vary enormously by region and municipality. A loft conversion built against a party wall raises the additional question of whether it affected the neighbour's wall and whether they consented. The safe approach is to have the physical property compared against the registered and licensed position before you commit, so that any gap is identified, priced and either resolved by the seller or factored into your decision.
Many Spanish townhouses sit within an urbanisation, and the legal status of that urbanisation can matter more than the house itself. The key question is whether the development was properly completed and handed over: are the access roads, street lighting, drainage and water supply adopted and maintained by the town hall, or are they still private and the responsibility of the owners? In a finished, adopted development this is a non-issue. In an urbanisation that was never formally completed — and there are many along the coast and inland — owners can find themselves collectively liable for roads, lighting and infrastructure that the town hall has never taken on.
The consequences are real money. Unadopted private roads have to be resurfaced and maintained at the owners' expense; street lighting and shared services have to be paid for collectively; and in some cases owners have been left exposed to historic urbanisation costs (cuotas de urbanización) that surface long after the houses were sold. A townhouse can be perfect in itself and still sit in an urbanisation with an unresolved legal status that will cost you for years. This is precisely the kind of thing that does not appear in a property advert and only emerges through proper property due diligence — checking the planning status of the development, the town hall's position, and any pending urbanisation charges.
The taxes and fees on a townhouse purchase are the same as on any Spanish home: Transfer Tax on a resale or VAT and Stamp Duty on a new build, plus notary, Land Registry and legal fees, and the running costs of ownership. What differs for a townhouse is the ongoing community contribution and the risk of a special levy, both of which should be factored into your budget from the start rather than treated as a surprise. Our guide to the cost of buying property in Spain sets out every tax and fee in full so you can see the real total before you commit.
Our own fees for handling a townhouse purchase depend on the price, the location and how much shared and built complexity the property carries — a freehold terraced house in a village is a different job from a townhouse inside a large coastal urbanisation with an unfinished legal status. For that reason we do not pretend there is a single flat figure: we look at the specific property and we quote clearly for the work involved, and extras may apply where the matter turns out to be more complex than it first appears. What you will always get is a clear scope and an honest estimate before any work begins, not an open-ended bill. Drawing on fifteen years' experience helping expats buy in Spain, we make sure the shared and built elements of a townhouse are checked as carefully as the house itself.
A townhouse rewards the buyer who treats it as what it really is — a house you own, joined to walls and a community you share. The mistakes we are asked to fix almost always come from the shared half being overlooked: the unlicensed loft that should have been caught, the community levy that landed weeks after completion, the "private" garden that turned out to be communal, the urbanisation whose roads were never adopted. None of these are visible at a viewing, and most are invisible in the paperwork unless someone goes looking.
Our role is to act only for you, the buyer, and to check both halves of the purchase before you are committed. We verify the title, boundaries and plot; we read the community statutes, minutes and debt position; we compare the physical house to the licensed and registered description to catch unauthorised works; and we check the legal status of the urbanisation and its roads and services. Where something is wrong, we tell you plainly, price the consequence, and either resolve it with the seller or build it into your decision. We act for English-speaking clients across Spain, we explain everything in plain English with bar-registered solicitors and legal specialists, and we quote clearly for the work on your specific property rather than leaving you guessing.
A townhouse is usually called a casa adosada when it is attached to neighbours on one or both sides, or sometimes a casa pareada when it is semi-detached. A row of attached houses is a terraced property. In law you generally own the building and its plot, but you share party walls and often belong to a community of owners.
With most townhouses you own both the building and the plot it stands on, including any private garden or patio registered to your title. The exact extent must be checked against the title deed, because some "private" gardens or parking spaces are actually communal areas you only have the right to use, not own.
Party walls (medianería) are the walls you share with the houses on either side. In Spanish law they are presumed jointly owned, so both neighbours share the right to use them and the duty to maintain them. They matter because noise, damp and structural movement travel between homes, and because one neighbour's works on a shared wall can affect yours.
Often, yes. Many modern townhouse developments are set up as a community of owners with a shared pool, gardens and private roads, funded by community fees that every owner must pay. An older terraced house in a village may have no community at all. Establishing which kind you are buying is one of the first jobs of the conveyancing.
Yes. Although you live in a house rather than a flat, many Spanish townhouse developments are legally a comunidad de propietarios with shared facilities, statutes and an annual budget. Membership is automatic with ownership, you pay fees, and you are bound by the community rules and majority decisions on shared elements.
Not always. A garden or parking space may be privately owned and recorded on your title, communal but allocated to your house, or simply shared within the urbanisation. Each is different in law and affects both value and what you may do with the space. The conveyancing should confirm exactly which areas you own and which you merely use.
When you buy, you take the property as it is, including any unauthorised loft conversion, garage conversion or garden build. Unlicensed work does not become legal with time, and the registered description may not match what is physically there. Some out-of-time works can be regularised through an AFO or legalisation process, but not all, so the position should be checked and priced before you commit.
If the urbanisation was never formally completed and handed over, the roads, lighting, drainage and services may still be private and the owners' responsibility rather than adopted by the town hall. That can leave owners collectively liable for maintenance and, in some cases, historic urbanisation charges. A perfect house can still sit in an urbanisation with an unresolved status that costs you for years.
The cédula de habitabilidad, or licence of first occupation, certifies that the house is legally habitable. Without it, connecting utilities, letting the property and reselling it can all be obstructed, and its absence can point to deeper licensing problems. It should be checked as part of any townhouse purchase.
The taxes and fees are the same as any Spanish home — Transfer Tax on a resale or VAT and Stamp Duty on a new build, plus notary, registry and legal fees — and a townhouse adds ongoing community contributions and the possibility of a special levy. Our fees depend on the property's price, location and complexity, so we quote clearly for the specific purchase rather than applying a single flat figure, and extras may apply for more complex matters.
Yes. We act only for you as the buyer, checking the title, boundaries and plot, reading the community statutes, minutes and debt position, comparing the physical house to the licensed and registered description, and verifying the urbanisation's status. We act for English-speaking clients across Spain and quote clearly for the work on your specific property.
A townhouse is a house you own joined to walls and a community you share. We check both halves before you commit — the title and plot, the party walls, the community and the urbanisation. In plain English, across Spain.
The information on this page is general guidance only and does not constitute legal advice. The rules on party walls, communities of owners, building licences, property legalisation and the adoption of urbanisation services are set out in legislation and local planning rules that change over time and vary between Spain's autonomous communities and municipalities. Always obtain advice on your specific property and circumstances before acting. Platinum Legal Spain is an independent English-speaking legal practice serving clients across Spain.