Office figures: No broker publishes a current office vacancy rate for Zaragoza; empty floor space here is mostly municipal and industrial. Map built 2026-10-09.
Every building a record says stands empty, one point per building: filter by type, size and how sure the evidence is, and open one to see who says so. “Opportunities” switches to the co-op lens: public land, conversion potential and projects already under way, every source as its own layer.
The list of unused municipal buildings dates from 2015; the 2022 count of 58 has no published list, so each building needs checking.
0 empty buildings · colour = type, dark ring = confirmed
Check any building in Zaragoza: could it become homes, and could the EHC model work there?
Buildings with evidence that they stand empty — a second source agrees, a public record names them, or we have checked them — ranked by a score you can read: co-op scale, daylight depth, a station nearby, a zone that allows homes, affordable land and an open route in. Checked buildings carry their result; nobody has visited them on site yet. Leerstandsmelder reports join the list when they sit in a large non-residential building and a second source agrees.
| Priority | Building | Floor area | Depth | Station | Conversion check | Actions |
|---|---|---|---|---|---|---|
| 85 | Fábrica de Fundición Averly Distressed or stranded (named) · Heritage at risk: patrimonio industrial, patrimonio industrial · 1 other source nearby | 2,225 m² | 14.9 m | 260 m | A fit only | |
| 81 | industrial building, cadastral ref. 4514802XM6241C Distressed or stranded (named) · industrial · 1 other source nearby | 2,404 m² | 14.7 m | 467 m | A fit only | |
| 66 | Antiguas naves de Giesa (Schindler) Public building named vacant · 1 other source nearby | 13,650 m² | — | 770 m | — | |
| 66 | Calle Madre Rafols, 8 Public building named vacant | 4,700 m² | — | 635 m | — | |
| 66 | Antiguas Naves Giesa Public building named vacant · 1 other source nearby | 13,650 m² | — | 780 m | — | |
| 66 | Paseo del Canal Número 65 y 67. Pk. 85.446 Public building named vacant · Plot · 4 other sources nearby | — | 11.6 m | 913 m | — | |
| 63 | Imprenta Blasco Public building named vacant · 1 storey · 1 other source nearby | 2,830 m² | 19 m | 1,088 m | B fit only | |
| 58 | Gerencia Urbanismo Eduardo Ibarra Public building named vacant | 5,550 m² | — | 1,187 m | — | |
| 58 | Edificio Cl San Miguel 32 Public building named vacant | 1,975 m² | 19.7 m | 1,286 m | B fit only | |
| 57 | Ruin, cadastral ref. 50900A02800115 Distressed or stranded (named) · agriculture · 1 storey · 1 other source nearby | 6,917 m² | 15.3 m | — | A fit only |
Where empty offices, the right zoning and a working neighbourhood come together — and what could go wrong.
The densest cluster of unused municipal buildings: palaces, the Imprenta Blasco (with empty flats above), the San Agustín barracks and the officers' houses on Madre Rafols.
Risk: Most are listed monuments; rehabilitation is costly and slow.
The Giesa factory, the Ternera hall of the old slaughterhouse and the former Tomás Alvira school stand empty in working-class districts east of the centre.
Risk: Giesa is huge and in poor condition inside; the City has no plan for it.
The old prison, its director's house, the cemetery entrance pavilions and a former police building form a group of unused municipal buildings on Avenida de América.
Risk: Listed buildings around a cemetery; part of the prison was occupied irregularly.
Where the City's co-op model is being used: municipal land on surface rights for cohousing, alongside affordable rental buildings by Zaragoza Vivienda.
Risk: Small plots; each project needs a co-op ready to build.
Who controls the space, and what a housing cooperative can actually do with them.
The City's housing company cedes municipal plots and buildings to housing co-operatives on 75-year surface rights for homes in cesión de uso (90 homes on pilot plots in the Arrabal, the old town and Avenida de Cataluña awarded in 2019; Acobijo in 2026); the land stays public. A co-op can apply in the next call or propose an unused municipal building for the same model.
The City keeps a register of its facilities and marks those without use; its own architects asked in 2015 that they be reused before anything new is bought or built. A co-op can propose a long cesión or surface right for one of them, starting with those still held in reserve.
The State holds 21 unassigned plots in the city (13,182 m² on Royo Villanova, Quinta Julieta, SUZ 55/1). Since 2025 State land for housing goes through Casa 47, the State's housing company — the place to ask for a plot on a surface right.
Decisions, auctions and closures that change what becomes available, and when.
Asking rents reached about €12.3 per m² a month in the city (Idealista, July 2026), with rises of around 11% a year in the province.
Zaragoza Vivienda transferred the 75-year surface right of a municipal property in El Rabal to the Acobijo co-operative.
A council motion cited a municipal report counting 58 unused facilities, among them the Giesa halls, the old Torrero prison and the Casa del Director of the Azucarera.
The City published its architects' report on the unused buildings and premises in its register of facilities, with a sheet for each.
21 sources connected, 1 waiting for access. We only use data we may lawfully reuse; where a publisher blocks automated access we do not work around it — a person downloads it, or we ask for permission.
| Source | Access | Records | Status | Licence |
|---|---|---|---|---|
| OpenStreetMap disused/abandoned tags and brownfields OpenStreetMap contributors | Open API | 250 | Live 2026-10-09 | ODbL 1.0 (© OpenStreetMap contributors) |
| Rail, S-Bahn and U-Bahn stations (OpenStreetMap) OpenStreetMap contributors | Open API | scoring | Live 2026-10-09 | ODbL 1.0 (© OpenStreetMap contributors) |
| Building heights: GlobalBuildingAtlas (TU Munich) Zhu, X. X., Chen, S., Zhang, F., Shi, Y., Wang, Y. (2025), Technical University of Munich GlobalBuildingAtlas: an open global and complete dataset of building polygons, heights and LoD1 3D models. Earth System Science Data 17(12), 6647–6668, doi:10.5194/essd-17-6647-2025. Read from the Parquet copy on Source Cooperative. Satellite-derived heights (typically 1.5–3 m error in Europe), turned into storeys with storey heights fitted on Berlin; used only where no register or official 3D model sizes the building. | Open download | 3 buildings sized | Live 2026-10-09 | CC BY-NC 4.0 (heights); footprints from OpenStreetMap and Microsoft: ODbL |
| Official floor areas and uses: Catastro INSPIRE buildings Dirección General del Catastro (Ministerio de Hacienda) Fuente: Dirección General del Catastro. The official gross floor area (officialArea, grossFloorArea) and current use of the cadastral building a record sits in — everything built on that parcel. | Open download | 123 buildings sized | Live 2026-10-09 | Catastro INSPIRE licence 1.0 (free use of transformed information, with attribution) |
| Road noise (EU Environmental Noise Directive, Lden) European Environment Agency | Open API | scoring | Live 2026-10-09 | EEA standard re-use policy (attribution) |
| Leerstandsmelder.de — public reports of empty buildings Leerstandsmelder (Gängeviertel e.V., Hamburg) Shown while we ask Leerstandsmelder for permission. Reports since 2016 only, with the address, the month reported and a link to each entry; not checked by EHC. Each point says when a report has since been marked demolished, lived in, in interim use or rebuilt on Leerstandsmelder, and the owner type the reporter gave (private owners are never named). | Asking for permission | 0 | Pending 2026-10-09 | Credited to Leerstandsmelder.de; asking for permission |
| Open-ended property funds: buildings they report partly empty Open-ended real-estate funds (each point names its fund and report) German and Austrian open-ended public property funds must list every property with its vacancy (or letting) rate in their annual and half-year reports. scripts/reuse/import-fund-reports.ts reads those lists; properties at 10 % vacancy or more are shown, those at 25 % or more count as evidence. | Open download | 0 | Live 2026-10-09 | Published fund report (KAGB / KARBV property list), cited per point |
| Co-working spaces, department stores, banks, hotels and cinemas listed as permanently closed Overture Maps Foundation (closure data: BrightQuery company records) Places with operating_status "permanently_closed" in the monthly Overture release, read by scripts/reuse/import-overture-closures.ts and matched to the building they sit in. A closed business is usually one unit; names are shown only for companies, never for sole traders. | Open download | 0 | Live 2026-10-09 | CDLA Permissive 2.0 (Overture Maps Foundation) |
| Land without current use and stalled construction, mapped from satellite imagery (Copernicus Urban Atlas 2006–2018) European Environment Agency — Copernicus Land Monitoring Service Urban Atlas class 13400 (brownfields, demolition sites and gaps in the built-up area, 0.25 ha and up) compared across the 2006, 2012 and 2018 editions, so each plot says how long it has stood unused; plus construction sites (13300) already under way in 2012, and 2012 construction sites left unused by 2018. Read from the EEA's open ArcGIS services, the same way in every radar city. The 2021 edition (Copernicus Data Space) drops plots built on since 2018 where scripts/reuse/import-urban-atlas-2021.ts has been run. Points are context, never evidence of vacancy. | Open API | 401 | Live 2026-10-09 | Copernicus open data (© European Union, Copernicus Land Monitoring Service 2006–2021, EEA) |
| Office buildings of 1,000 m² or more, with depth and storeys (EUBUCCO) EUBUCCO (TU Berlin / ai4up), from the Spanish cadastre, Regione Lombardia’s building database and OpenStreetMap EUBUCCO harmonises Europe's building footprints with their use, height and age. Only buildings whose source names the use are kept — the cadastre's office class in Barcelona and Madrid, Lombardy's "commerciale" in Milan, building=office in OpenStreetMap for Dublin and Lisbon — never EUBUCCO's machine-learning guesses. The footprint gives the plan depth, so the conversion score treats them like the German cadastre's offices (scripts/reuse/import-eubucco.ts → src/scripts/data/reuse/eubucco/, ODbL). | Open download | 0 | Live 2026-10-09 | ODbL 1.0 (EUBUCCO v0.2; Dirección General del Catastro, Regione Lombardia, © OpenStreetMap contributors) |
| Stalled construction and buildings held by insolvent developers EHC research (dated press and court sources per point) Signa, Adler/Consus and other developer insolvencies since 2022 and stalled sites, each with its latest dated status (src/scripts/data/reuse/stalled-projects.json; news leads from scripts/reuse/mine-news.ts are reviewed before they join). | EHC research | 0 | Live 2026-10-09 | Cited publisher per point |
| Church buildings the dioceses and regional churches plan to give up Catholic dioceses and Protestant regional churches (their building plans), via EHC research Buildings a church body’s published building plan or recent reporting names as to be given up, without church funding, for sale or lease, or profaned (src/scripts/data/reuse/church-plans.json and brussels-churches.json). | EHC research | 0 | Live 2026-10-09 | Cited publisher per point |
| Named buildings and sites from EHC research (each with its own source) European Housing Coop research | EHC research | 5 | Live 2026-10-09 | Facts cited to their publishers |
| Year built and listing: OpenStreetMap building tags OpenStreetMap contributors start_date / construction_date and heritage / listed_status of the OpenStreetMap outline a record is matched to, where no register answers. Read with the outline match, not a separate query. | Open API | scoring | Live 2026-10-09 | ODbL 1.0 (© OpenStreetMap contributors) |
| Municipal buildings without use (class SIN of the City's register of municipal facilities) Ayuntamiento de Zaragoza — Dirección de Arquitectura, Servicio de Talleres y Brigadas: "Equipamientos municipales sin uso" (July 2015, published April 2017) | Open download | 33 | Live 2026-10-09 | No licence stated on the report — shown with credit to the Ayuntamiento de Zaragoza |
| Municipal premises and flats without use (class SIN of the City's register of municipal facilities) Ayuntamiento de Zaragoza — Dirección de Arquitectura, Servicio de Talleres y Brigadas: "Equipamientos municipales sin uso" (July 2015, published April 2017) | Open download | 9 | Live 2026-10-09 | No licence stated on the report — shown with credit to the Ayuntamiento de Zaragoza |
| Central-state plots held unassigned (Patrimonio del Estado) Gobierno de España — Portal de la Transparencia, Ministerio de Hacienda inventory of state property (CIBI), exported 8 Oct 2026 | Open API | 7 | Live 2026-10-09 | No licence stated on the export — shown with credit to the Portal de la Transparencia (EHC decision, 6 Oct 2026) |
| Vacant urban plots (solares) of 1,000 m² or more Ayuntamiento de Zaragoza — Unidad de Información Geográfica, IDEZar urban-planning WFS (layer "Suelos vacantes") | Open API | 1,639 | Live 2026-10-09 | Ayuntamiento de Zaragoza open data — general reuse terms of RD 1495/2011 (attribution), as listed for the City's catalogue on datos.gob.es |
| Areas of intervention (AI) in the General Plan still without an approved development instrument Ayuntamiento de Zaragoza — IDEZar urban-planning WFS (layer "PLA_1 Ámbitos de planeamiento de desarrollo", PGOU) | Open API | 150 | Live 2026-10-09 | Ayuntamiento de Zaragoza open data — general reuse terms of RD 1495/2011 (attribution), as listed for the City's catalogue on datos.gob.es |
| Buildings the cadastre records as ruined Dirección General del Catastro — INSPIRE Buildings (August 2026 release) | Open download | 140 | Live 2026-10-09 | Catastro open data (attribution: Dirección General del Catastro) |
| Buildings the cadastre records as declined (300 m² or more) Dirección General del Catastro — INSPIRE Buildings (August 2026 release) | Open download | 307 | Live 2026-10-09 | Catastro open data (attribution: Dirección General del Catastro) |
| Heritage at risk in Zaragoza — Hispania Nostra's Lista Roja Hispania Nostra — Lista Roja del Patrimonio | Open download | 1 | Live 2026-10-09 | All rights reserved (Hispania Nostra, aviso legal): only the entry's name, the street, the date added and a link to its card are kept — no descriptions or photos; credited "Hispania Nostra — Lista Roja" |
Open data cannot see everything. Tell us about a building in Zaragoza that stands empty or barely used; once we have checked it, it joins the map under “Reported by visitors (checked)”.
The other radars in the same country and the nearest beyond. All 134 cities in the atlas
The figure on each card: empty buildings on record.