For a business owner or a remote professional, buying houses in Spain is a different calculation from buying a flat. The house comes with land, and the land is what changes the arithmetic. It adds a garden, a pool and a place to work from, and it also adds a set of costs and rules that an apartment buyer never meets. The current catalogue holds 4,238 houses, from €30,000 for a village property to €4,500,000 for a villa on the Costa Blanca, and the spread between those figures is mostly the spread in what the plot is worth.

This text takes the house as a working asset rather than a holiday home and runs the numbers a business buyer would run: the cost per built metre in three tiers of the market, what a plot costs to hold, the transfer tax in each region and what the 2025 registration rules mean for anyone planning to let the property when they are away.

Three tiers on the current market

The catalogue sorts itself into three bands once price is divided by built area, and the bands correspond to three distinct ways of using the house.

The inland house is the outlier and it is the one a business buyer should look at twice. At €1,100 per built metre it is a fifth of the price of a Moraira villa, and it comes with 440 m² of space that can hold an office, a workshop and a family without any of them sharing a room. The townhouses at the southern end of the Costa Blanca are the low-capital entry, with the trade-off that a 67 m² plot is a terrace rather than land. The villas from Moraira north are priced on the sea, the plot and the town, and their price per metre says so.

What the plot adds to the running costs

A flat owner pays a community fee and a share of the building. A house owner pays for everything on the plot directly, and the plot does not stop costing money when it is not in use.

• A private pool needs chemicals, filtration and cleaning through the year, and the electricity to run the pump is a standing charge whether anyone swims or not.
• A garden of 800 m² or more in the south-east needs irrigation, and water in the driest provinces is metered and priced in tiers.
• Fencing, gates, alarm monitoring and exterior lighting are the owner's responsibility, and insurers price detached houses differently from flats.
• The yearly IBI bill is calculated on the cadastral value of the whole plot, so a large plot in a small village can carry a larger bill than a flat in a city.
• A house on the coast faces salt air, and external timber, metalwork and rendering have a shorter repainting cycle than they do inland.

Across a year these items typically add several thousand euros to the cost of holding a house against holding a flat of the same price, and the buyer who models them before the purchase is the one who is not surprised by the second summer.

Transfer tax depends on the region, not on the house

Spain devolves transfer tax on resale property to its regions, and the rate on the same house differs by four points depending on where it stands. On a €500,000 resale that is the difference between €30,000 and €50,000 before notary and registry.

A new build is taxed differently everywhere: 10% VAT plus a regional stamp duty of between 0.5 and 1.5%. The tax is one of the few costs the buyer cannot negotiate, so it belongs in the comparison between regions from the start rather than as a line at the notary.

The rules for letting the house when you are away

A business owner who spends part of the year elsewhere often plans to let the house for the other part. Since 1 July 2025 every short-term let in Spain has needed a national registration number, issued through the single digital registry, before it can be advertised on any platform, and the number sits on top of whatever regional licence the property already needs. The Valencia region and Andalusia both run their own tourist registers, and in many municipalities a certificate of compatibility from the town hall is required before the regional licence is granted.

The order matters. A house bought on the assumption of holiday income, without the licence checked first, can turn out to be a house that can only be let long term, and long-term letting on the coast produces a smaller and steadier number. Neither outcome is wrong, but they are different businesses, and the buyer should know which one they are entering before the deposit.

The houses on Alegria-RealEstate.com can be sorted by region, price band and built area, and the listings show plot size alongside the house, which is what makes the price-per-metre comparison in this text possible in a few minutes. The agency's offices along the Costa Blanca and the Costa del Sol handle the licence and registration questions locally, which is where those questions have to be answered.

A house in Spain works as a base when three things are true: the price per built metre matches what the space is for, the plot has been costed as a running expense rather than a bonus, and the rules for letting it have been read before the purchase rather than after. The catalogue supplies the first, a spreadsheet supplies the second, and a local office supplies the third.