Spain splits the job. A national heritage law makes every find with historical value public property and outlaws unauthorized archaeological prospecting, but the detector rules themselves are written by the 17 autonomous communities. So the honest answer is: it depends where you stand. Andalucía bans metal detectors and other instruments that can locate archaeological remains outside authorized archaeology, Madrid bans them in heritage-protected areas and wants a permit everywhere else, and Valencia's law wants a permit for any use unless a regulation exempts it. We've read four communities so far; here's what they say.
Can I detect in Spain?
The short answer for each kind of land. Tap a card for the detail and the rule’s own words.
- Anywhere: national heritage lawVaries by siteChecked against the source Oct 7, 2026
- Beaches & foreshoreVaries by siteChecked against the source Oct 7, 2026
- Protected monumentsVaries by siteChecked against the source Oct 7, 2026
- National parks & nature reservesVaries by sitenational-park and natural-park regulations were not readChecked against the source Oct 7, 2026
- Public forestsVaries by siteChecked against the source Oct 7, 2026
- Private landVaries by siteChecked against the source Oct 7, 2026
Open in many areas without a permitPermit, registration, or designated beaches onlyProhibited or effectively closed
The rules, land by land
Anywhere: national heritage law
Varies by siteIn Spain each autonomous community writes its own detector rules on top of a national heritage law. Andalucía bans metal detectors and other instruments that can locate archaeological remains outside authorized archaeology, Madrid and Valencia require a regional permit, and unauthorized archaeological prospecting is illegal everywhere.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- national frame: any archaeological excavation or prospecting needs express authorization from the competent administration, for a detailed program with scientific interest, and unauthorized prospecting is illicit (Law 16/1985, art. 42)
What the rule says
“Queda prohibido el empleo de detectores de metales u otros instrumentos que permitan la localización de vestigios arqueológicos, salvo para su uso en las actividades arqueológicas recogidas en el artículo 52 de esta ley.”
Keeping finds
ProhibitedAnything with historical or archaeological value that turns up in Spain, by digging or by chance, is public property. Report a chance find properly and you and the landowner split a reward of half its value. Detector finds are another matter in the three communities with detector rules we read: Madrid pays no reward for them, Valencia says they never count as found by chance, and Andalucía bans hobby detector use outright (the other communities were not read).
- objects and remains with the values of Spain's historical heritage are public domain however they were discovered, and the Civil Code's treasure rule never applies to them (Law 16/1985, art. 44.1)
- reward: half the legally assessed value, split equally between the finder and the landowner (art. 44.3)
- fail to report or hand over and you lose the reward, and the objects go straight to the authorities (art. 44.4)
- finds from authorized excavations go to the museum the authorities choose, with no reward (art. 42.2)
- Madrid: no reward for remains found during authorized detector use (Law 8/2023, art. 72.5); Andalucía: no reward for remains found by the exempt users of its detector ban (Law 14/2007, art. 60.4); Valencia: detector finds never count as found by chance (Law 4/1998, art. 60 bis.3)
- the other communities' rules on detector finds were not read
- the Civil Code's treasure rule (art. 351) gives hidden treasure to the landowner, or half to a chance finder on someone else's land, and lets the State buy items of scientific or artistic interest; it covers treasure that is not heritage
What the rule says
“Son bienes de dominio público todos los objetos y restos materiales que posean los valores que son propios del Patrimonio Histórico Español y sean descubiertos como consecuencia de excavaciones, remociones de tierra u obras de cualquier índole o por azar.”
Reporting finds
Must be reportedReport any find with historical or archaeological value to the regional heritage authority: immediately if it was a chance find, and within 30 days at most otherwise.
- report to the competent (regional) administration; until you hand the objects over, you hold them under the rules of legal deposit, unless you give them to a public museum (Law 16/1985, art. 44.1-2)
- if you don't report a chance find right away, later earthmoving or building at that spot becomes illicit (art. 42.3)
- Madrid: if authorized detector use turns up archaeological remains, stop, don't dig, and report within 24 hours to the regional government, the town hall or, failing that, the nearest police station (Law 8/2023, art. 72.4); Andalucía imposes the same duty on the exempt users of its ban (defense, police, utility and mining companies; Law 14/2007, art. 60.3)
What the rule says
“El descubridor deberá comunicar a la Administración competente su descubrimiento en el plazo máximo de treinta días e inmediatamente cuando se trate de hallazgos casuales.”
Beaches & foreshore
Varies by siteBeaches follow each community's detector rules: Valencia's heritage law requires the culture department's authorization for any detector use, though a regulation may exempt some uses and areas (none was read), and in Andalucía metal detectors and other instruments that can locate archaeological remains are banned outside authorized archaeology.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- no national rule on detecting on the coast was read (the Coastal Law was not searched); local beach bylaws were not surveyed
What the rule says
“El uso de detectores de metales u otras herramientas o técnicas análogas que permitan localizar restos de naturaleza arqueológica o paleontológica, aun sin ser ésta su finalidad, deberá ser autorizado por la conselleria competente en materia de cultura.”
Protected monuments
Varies by siteProtected archaeological sites are set by each community. Madrid bans detectors in areas protected under its heritage law except for research, Andalucía bans them everywhere outside authorized archaeology, and works or digging at a declared archaeological zone need authorization under national law.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- national law: any work or removal of earth in a declared Historic Site or Archaeological Zone (Bien de Interés Cultural) needs the competent administration's authorization (Law 16/1985, art. 22.1), and unauthorized archaeological prospecting is illicit (art. 42.3)
What the rule says
“Queda prohibido el uso de detectores de metales o de otras herramientas o técnicas que permitan localizar restos arqueológicos en ámbitos protegidos en la presente Ley, a excepción de su uso dentro de programas de investigación relacionados con el patrimonio cultural y natural.”
National parks & nature reserves
Varies by siteNational and natural parks follow the community's rules, so the answer depends on where the park is; in Andalucía, for example, metal detectors and other instruments that can locate archaeological remains are banned outside authorized archaeology.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- Madrid bans detectors in areas protected under its heritage law (Law 8/2023, art. 71.1) except for research programs; elsewhere, parks included, use needs the regional authorization (art. 71.2); whether a given park is a heritage-protected area was not checked
- national-park and natural-park regulations were not read
What the rule says
“Queda prohibido el empleo de detectores de metales u otros instrumentos que permitan la localización de vestigios arqueológicos, salvo para su uso en las actividades arqueológicas recogidas en el artículo 52 de esta ley.”
Public forests
Varies by sitePublic forests follow each community's detector rules; Madrid, for example, needs a regional permit outside areas protected under its heritage law, and its forest rangers are told who holds one.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- Madrid sends each authorization to its Forest Rangers corps and the national police forces so they can supervise it
- no national forestry rule on detectors was read (the Forestry Law was not searched)
What the rule says
“Fuera de los ámbitos protegidos citados en el apartado anterior, el uso de detectores de metales u otras herramientas o técnicas que permitan localizar restos arqueológicos, aun sin ser ésta su finalidad, deberá ser autorizado por la Consejería competente en materia de patrimonio cultural.”
Private land
Varies by siteOwning the field isn't enough everywhere. In Madrid and Valencia you need a regional permit with the landowner's consent attached, and Andalucía bans metal detectors and other instruments that can locate archaeological remains outside authorized archaeology, private land included.
- Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological activities (Law 14/2007, art. 60); a new law in force from April 7, 2027 keeps the ban but lets the regional government open set areas and periods
- Comunidad de Madrid: banned in areas protected under its heritage law except for research programs; anywhere else you need the regional government's authorization, with the landowner's consent (Law 8/2023, arts 71-72)
- Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the landowner's consent, though a regulation may exempt some uses and areas (Law 4/1998, art. 60 bis; no regulation was read)
- Castilla y León: its 2024 law has no detector permit clause that we found, but treats using a detector in illicit activities against archaeological heritage as an aggravating factor, and archaeological prospecting needs authorization
- the other 13 communities and the autonomous cities of Ceuta and Melilla were not read
- Madrid: you must show the area and purpose are such that the authorities have no reasonable doubt it can't harm archaeological heritage; no answer in two months means no
What the rule says
“La persona interesada deberá presentar una solicitud donde se indicará el ámbito territorial y la fecha o plazo para el uso de detectores de metales o de otras técnicas análogas. La solicitud se acompañará de la autorización del propietario de los terrenos.”
Even where detecting is allowed, archaeological and historic sites are protected, and you must fill every hole and follow posted rules. Always confirm the current rule with the land manager.
Detecting beyond Spain? We cover 14 more countries rule by rule too. See the world map →
Open data: every rule in our Spain guide, with its quote, source and check date, free to reuse (CC BY 4.0). Download the data →
The national frame
Spain's Ley 16/1985 del Patrimonio Histórico Español (Spanish historical heritage law) says any archaeological excavation or prospecting needs express authorization for a detailed, scientific program, and that unauthorized work is illicit. It doesn't mention detectors; the communities do.
Finds are simple: anything with historical or archaeological value is public property, whether it turned up in a dig or by pure luck, and the Civil Code's treasure rule never applies to it. Report a chance find immediately and you and the landowner split a reward of half its assessed value. Skip the report and you lose the reward.
Community by community
Andalucía: metal detectors and other instruments that can locate archaeological remains are banned except in authorized archaeological work (Ley 14/2007, art. 60). A new heritage law takes over on April 7, 2027, keeping the ban but letting the regional government open specific areas and periods.
Comunidad de Madrid: banned in areas protected under its heritage law except for research; everywhere else you need the regional government's authorization, with the landowner's consent, for a place and purpose that clearly can't harm archaeology (Ley 8/2023, arts 71-72). No answer in two months means no.
Comunitat Valenciana: any use of a detector needs the regional culture department's authorization, with the owner's consent, though a regulation may exempt some uses and areas, and detector finds never count as found by chance (Ley 4/1998, art. 60 bis).
Castilla y León: its 2024 heritage law has no detector permit clause that we found, but archaeological prospecting needs authorization, and using a detector in any illicit activity affecting archaeological heritage is an aggravating factor. The other communities are next on our list.
Sources
Official and statutory sources this page is based on (source check: October 7, 2026):
Four of Spain's 17 autonomous communities have been read so far (Andalucía, Madrid, Valencia, Castilla y León); the rest are being added community by community.
- Ley 16/1985, de 25 de junio, del Patrimonio Histórico Español (texto consolidado)
- Real Decreto de 24 de julio de 1889, Código Civil (texto consolidado)
- Ley 14/2007, de 26 de noviembre, del Patrimonio Histórico de Andalucía (texto consolidado)
- Ley 4/2026, de 24 de marzo, de Patrimonio Cultural de Andalucía (texto consolidado)
- Ley 8/2023, de 30 de marzo, de Patrimonio Cultural de la Comunidad de Madrid (texto consolidado)
- Ley 4/1998, de 11 de junio, del Patrimonio Cultural Valenciano (texto consolidado)
- Ley 7/2024, de 20 de junio, de Patrimonio Cultural de Castilla y León (texto consolidado)
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Frequently Asked Questions
- Is metal detecting legal in Spain?
- It depends on the autonomous community. Andalucía bans metal detectors and other instruments that can locate archaeological remains outside authorized archaeology, Madrid bans them in heritage-protected areas and requires a permit elsewhere, and Valencia's law requires a permit for any use unless a regulation exempts it. Unauthorized archaeological prospecting is illegal everywhere.
- Who owns what I find in Spain?
- Anything with historical or archaeological value is public property, however it was found. A chance finder who reports immediately shares a reward of half the assessed value with the landowner. In Madrid, detector finds earn no reward, in Valencia they never count as chance finds, and Andalucía bans hobby detector use altogether; the other communities were not read.
- Do I need the landowner's permission?
- In Madrid and Valencia, the detector permit application must include the landowner's consent; the other communities' rules were not read.
- How fast must I report a find?
- Immediately for a chance find, and within 30 days at most otherwise, to the regional heritage authority. In Madrid, remains found during authorized detector use must be reported within 24 hours.
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