Land for a prefab house: what to check before buying the plot

Published on 23 August 2026 · Updated on 24 September 2026 · Moduly Homes

In Spain, what decides whether you can live in your prefab house is the land, not the house, and on rural land it is almost never possible: there, a home is an exception set by each region. Before paying for a plot, ask the town hall to tell you in writing what it allows. Here you will find which documents to check, what changes from one region to another and what the land costs on top of its price.

Quick answer

On rural land, as a general rule, no. The Land Law assigns it to agricultural, livestock, forestry or hunting uses (article 13.1), and a home only fits through each region's exception: in the Valencian Community, with at least one hectare and a maximum site coverage of 2%.
Paperwork first, plot second: the town hall must tell you in writing what that property allows if you ask (article 5.d). With that answer you know whether your house fits.
Neither wheels nor “temporary” get you off the hook: the law requires express permission, with negative silence, for prefabricated houses “temporary or permanent” (article 11.4.c), and the Supreme Court applied it to mobile homes in 2024.
Buying farmland and buying a building plot are not taxed the same: a rural property pays ITP (transfer tax) even if a company sells it; a building plot sold by a company pays VAT.
On rural land, even if they let you, you pay more: in Andalusia, a detached home also pays a compensatory levy (15% of the material construction budget of the works).

What each type of land allows

Land situation	Year-round home?	What to check
Urban	Yes, if the plan gives it residential use	Site coverage, setbacks and height
Land zoned for development	Once the sector is urbanised	Sector's stage and who pays for urbanisation
Common rural land	Only by regional exception	Minimum plot, linked farm and prior authorisation
Protected rural land	As a general rule, no	What protection applies
Rural settlement	Depends on the regional law	That the plot is inside the defined settlement

Can you put a prefab house on rural land?

As a year-round home, almost never. Article 13.1 of the Land Law assigns rural land to agricultural, livestock, forestry or hunting use. Housing is not on that list: it only fits “on an exceptional basis” and under each region's conditions. The exception is written by your region, not by the State: a minimum plot, a farm to tie the house to, or a regional authorisation before the permit.

Neither wheels nor “temporary” change that: article 11.4.c requires express permission, with negative silence, for prefabricated houses “temporary or permanent”, and the Supreme Court applied it to the mobile homes on a campsite (ruling of 5 December 2024).

Three regions, three different rules

There is no single Spanish rule for rural land: each region sets its own, and sometimes even a different name (in the Valencian Community, “suelo no urbanizable”, non-developable land). Three examples, worth checking against the version in force:

Galicia: only a home tied to a farming or livestock operation (Law 2/2016, article 35.1.n), with regional authorisation before the permit (article 36.3).
Andalusia: the LISTA (Law 7/2021) allows detached single-family homes that do not create a new settlement (article 22). The prior authorisation has a deadline of up to six months, and if they do not reply, the answer is no.
Valencian Community: a detached home on at least one hectare, covering at most 2% of it (article 211).

See prefab houses in Galicia (in Spanish), Málaga or Valencia (in Spanish).

The four documents to ask for before buying

Three cost little or nothing, and the fourth is the one that counts:

Land Registry extract (nota simple): owner, registered area, charges and easements.
Cadastre Electronic Office: cadastral reference, area and use. If it does not match the Registry or the listing, ask why.
The town hall's planning viewer: the land class and the restrictions shown on the map.
Written planning information on that property: it is a right (article 5.d of the Land Law) and states the land class and the uses the plan gives it. It may be called cédula urbanística, planning report or certificate of compatibility.

If you are being sold a piece of a larger property, the subdivision also needs an express permit, with negative silence (article 11.4.a).

Which tax the purchase pays: ITP or VAT

It depends on what you buy and from whom, under article 20.Uno.20º of the VAT Law:

Rural or non-buildable land: exempt from VAT even if a company sells it, so it pays ITP (transfer tax), at your region's rate.
A building plot, or land that is urbanised or being urbanised, sold by a company: it pays VAT. Bought on its own, at the standard rate of 21% (article 90), because land is not among the reduced rates of article 91.
Plot and house from the same seller, delivered together: the rate may be different. Ask for the contract to state which rate applies and why before signing.
A building plot sold by a private individual: ITP.

What the land costs on top of the land

The plot is only the first line. Also budget for:

Geotechnical survey: the foundations are designed from it, and the Technical Building Code places it at the start of the project. Fill, a former landfill or water close to the surface call for a wider survey and can change the foundations.
Utility connections and access: on rural land, water, electricity and sewerage rarely reach the plot. Ask how much it costs to bring them in before buying.
ICIO construction tax: up to 4% of the material construction cost (excluding VAT, fees and the builder's profit).
Stamp duty (AJD) on the new construction: each region sets it; the national 0.50% only applies where the region has not approved another rate.
Compensatory levy on Andalusian rural land: 15% of the material construction budget of a detached home (LISTA, article 22.5).

How to choose the model to fit the plot

With the planning information in hand, the model is chosen by three limits: maximum site coverage, setbacks and height. If it does not fit on a single floor, a two-storey house takes up less ground.

On rural land the regional rule decides: in the Valencian Community, one hectare allows 200 m² of footprint, and 90 out of every 100 prefab houses do not exceed that area counting all their floors.

Three turnkey examples: a 34 m² mobile home for 22,900 € (in Spanish), a 45 m² timber house for 41,285 € (in Spanish) and a 93 m² timber house for 74,800 € (in Spanish). There are more in prefab rural houses. Once you have chosen the plot, see what permits a prefab house needs and in what order the procedures go.

Land is not chosen by the price per metre, but by what the town hall answers in writing about that property: ask for it before signing and show it to the professional who draws up the project. With the plot settled, compare on Moduly Homes which houses fit on it and what each price includes.

Frequently asked questions

Can I put a prefab house on rural land?

In Spain, as a permanent year-round home, as a general rule, no. The Land Law assigns rural land to agricultural, livestock, forestry or hunting uses (article 13.1), and a home only fits through each region's exceptions: tied to a farm, with a minimum plot or with prior regional authorisation. Ask your town hall before buying.

What is the cédula urbanística and do all town halls have it?

It is the document that certifies the planning status of a property: the plan that affects it, the land class and the uses it allows. Not all of them have it: the Planning Regulation says town halls “may” create it by bylaw (article 168). Where it does not exist, ask for the same thing as a planning report.

Does a mobile home on my land need a permit?

Yes. The Land Law requires express authorisation, with negative silence, to install prefabricated houses “whether temporary or permanent” (article 11.4.c), and the Supreme Court treated mobile homes as prefabricated houses rather than trailers, because they are designed to be lived in (ruling of 5 December 2024).

What taxes does buying the land pay?

It depends on what you buy and from whom. Rural or non-buildable land is exempt from VAT and pays your region's ITP (transfer tax), even if a company sells it. A building plot sold by a company pays VAT, at the standard rate of 21% if you buy it on its own; if the same seller builds your house and delivers both together, ask for the contract to state which rate applies. Add the notary and the registry.

Can I register my address in a house on rural land?

The municipal register and planning legality are separate matters. The instructions to town halls on the register (Resolution of 29 April 2020) start from the principle that it reflects where each person really lives, whatever the state of their home, and they include substandard dwellings. But registering does not legalise the house or protect it from proceedings for building without a permit.

What happens if I buy the plot and then I am not allowed to build?

You are left with land that does not allow the use you wanted, and the purchase tax is already paid. Article 11.2 of the Land Law says that what a plan allows to be built is not, in itself, part of the property right: it is gained by building it. That is why the planning information is requested before signing and, if there is a rush, the deal is signed with a condition precedent tied to that answer.

Sources

Most of the sources are official Spanish documents, in Spanish.