Office figures: No open office vacancy figure for Porto was read. The radar lists EUBUCCO's office buildings (all of Portugal's cities) as the stock to look through; the City's building register sits on the map server that is down. 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 City's map server (mapas.cm-porto.pt) answered HTTP 500 on 9 Oct 2026, as on 8 Oct, so no building register, vacancy or property layer could be reached; the City's new open-data portal (dadosabertos.cm-porto.pt, 69 datasets) has no vacancy or property list.
0 empty buildings · colour = type, dark ring = confirmed
Check any building in Porto: 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 |
|---|---|---|---|---|---|---|
| 58 | State properties in Campanhã (Rua de Tirares, Rua do Cerco do Porto) Public building named vacant · 1 other source nearby | — | 5.7 m | 1,102 m | — | |
| 53 | Survey: Habitação, 2 storeys City vacancy listing · Habitação · 2 storeys · 1 other source nearby | 4,938 m² | 18.2 m | 1,098 m | A fit only | |
| 53 | Survey: Habitação, 1 storeys City vacancy listing · Habitação · 1 storey · 1 other source nearby | 3,708 m² | 16.6 m | 1,148 m | A fit only | |
| 48 | Survey: Habitação, 2 storeys City vacancy listing · Habitação · 2 storeys · 1 other source nearby | — | 5.9 m | 1,606 m | — | |
| 48 | Survey: Sem informação, 1 storeys City vacancy listing · Sem informação · 1 storey · 2 other sources nearby | — | 4.7 m | 1,521 m | — | |
| 48 | Survey: Habitação, 1 storeys City vacancy listing · Habitação · 1 storey · 2 other sources nearby | — | 7.2 m | 1,707 m | — | |
| 45 | Antiga Central Termo-Eléctrica do Freixo Distressed or stranded (named) · 1 other source nearby | 3,474 m² | 36.3 m | 537 m | B fit only | |
| 43 | Survey: Indústria, 3 storeys City vacancy listing · Indústria · 3 storeys | 3,639 m² | 17.7 m | 1,469 m | B fit only | |
| 43 | Survey: Habitação, 1 storeys City vacancy listing · Habitação · 1 storey · 3 other sources nearby | 4,252 m² | 29.9 m | 1,222 m | B fit only | |
| 43 | Survey: Sem informação, 2 storeys Distressed or stranded (named) · Sem informação · 2 storeys · 4 other sources nearby | 2,790 m² | 30.6 m | 1,725 m | B fit only |
Where empty offices, the right zoning and a working neighbourhood come together — and what could go wrong.
The only part of Porto with a published building-by-building occupancy survey; the abandoned military maintenance barracks lies inside it.
Risk: Mostly small one- and two-storey houses on narrow plots; the survey dates from April 2023.
Two State properties and a City property are due for auction here, beside the Freixo industrial ruins; the parish has about 2,400 dwellings vacant (1,244 for sale or rent, 1,187 for other reasons, Census 2021).
Risk: The auctions go to the highest bidder, and the State's and City's base values are set on market valuations.
The historic centre holds the City's Porta do Sol buildings and the Monte Pedral barracks project; Bonfim has 2,821 vacant dwellings (Census 2021).
Risk: Heritage rules and tourism pressure; the City is selling rather than keeping.
Who controls the space, and what a housing cooperative can actually do with them.
In July 2026 the mayor proposed selling two properties bought for mosques (Rua da Porta do Sol 27–31 and Rua do Pinheiro Grande) at public auction from about €2.2 million together. Ask the Câmara whether the auction took place and whether building rights for non-profit housing are an option instead.
The Government resolved on 23 Oct 2025 to sell 16 State properties at public auction through Estamo, two of them in Campanhã, with procedures launched by the end of Q1 2026 and concluded by the end of 2026; proceeds go to public housing. Watch Estamo's sales page and bid or ask for a social-use sale.
The City's urban-rehabilitation company runs the 'Arrendamento Acessível' programme (eight units listed on 9 Oct 2026); it is the body to ask about derelict buildings in the rehabilitation areas that it can buy or swap.
Up to 388 affordable-rent homes on the former barracks, the contract awarded to a builder in October 2025 and awaiting the Court of Auditors; a model for how the City prefers to deliver rental housing, not a site to bid for.
Decisions, auctions and closures that change what becomes available, and when.
The Porto council says it has identified more than 6,000 vacant buildings and is writing to owners to restore them and put them on the market, with a sharp IMI surcharge as the stick (RTP, page undated).
Rua da Porta do Sol 27–31 (€913,700) and Rua do Pinheiro Grande (€1,307,000), together at least €2.2 million; the vote was due on the following Tuesday.
The €4.5 million urbanisation works for up to 388 affordable-rent homes went to ABB, pending the Court of Auditors.
Two of the 16 are in Campanhã (Rua do Cerco do Porto, Rua de Tirares); proceeds fund public housing.
15 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 | 276 | 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 | 387 buildings sized | Live 2026-10-09 | CC BY-NC 4.0 (heights); footprints from OpenStreetMap and Microsoft: ODbL |
| 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 | 75 | 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 | 7 | 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) |
| Buildings recorded as unoccupied in the Lordelo do Ouro rehabilitation-area survey Município do Porto — Divisão Municipal de Planeamento e Ordenamento do Território (ORU de Lordelo do Ouro, field survey of 26 April 2023) | Open download | 203 | Live 2026-10-09 | CC0 1.0 (Creative Commons — Domínio Público, as stated on the portal) |
| Ruined buildings in the Lordelo do Ouro rehabilitation-area survey Município do Porto — Divisão Municipal de Planeamento e Ordenamento do Território (ORU de Lordelo do Ouro, field survey of 26 April 2023) | Open download | 58 | Live 2026-10-09 | CC0 1.0 (Creative Commons — Domínio Público, as stated on the portal) |
| State property in Porto listed as unused — inactive, vacant or abandoned (Despacho 3260/2022) Governo de Portugal — Secretários de Estado do Tesouro e da Descentralização e da Administração Local (list compiled by DGTF under Decreto-Lei 106/2018) | Open download | 3 | Live 2026-10-09 | Diário da República, public official text; no licence stated — credited to the publisher |
Open data cannot see everything. Tell us about a building in Porto 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.