Office figures: Catella Market Review Finland, Spring 2026 (Q4 2025): Vantaa offices 19.2% vacant, 182,000 m² empty; Aviapolis 27.1% (63,000 m²). Helsinki Research Forum puts the capital region at 18.6% in September 2026 and says vacancy rose most in Aviapolis. 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.
0 empty buildings · colour = type, dark ring = confirmed
Check any building in Vantaa: could it become homes, and could the EHC model work there?
Where empty offices, the right zoning and a working neighbourhood come together — and what could go wrong.
The airport office district has the highest office vacancy in the region (27.1%, about 63,000 m²).
Risk: Far from homes and services; the buildings are privately owned and housing needs a plan change or an exception decision.
The City's administrative centre: two of its office houses are already gone, the last (Kielotie 28) is to be demolished, and the library house will be emptied for renovation in 2027–28.
Risk: The City's own office house is slated for demolition, not reuse; the privately owned offices around it are the realistic stock.
A second centre on the rail line with 18 office buildings of 1,000 m² or more, and a City school project on Ojahaantie.
Risk: The long-empty former Varia building on Ojahaantie (12,880 m², 1984) was due for demolition when it burned in May 2026; the register now records it as demolished, so nothing is left to reuse there.
Who controls the space, and what a housing cooperative can actually do with them.
The City sells buildings it no longer needs, singly by tender (the Jokivarsi school went to a Huutokaupat.com auction in February 2026) and through a sale list of properties (the budget names “Sote” and “Pela” properties), whose sale waits for long leases to the wellbeing services county. The budget also says buildings the City cannot use or let will be assessed in 2026 and demolition advanced where possible — the moment to ask for a reuse instead.
With a fifth of the office stock empty, owners of older buildings are the likeliest sellers or lessors. A change of use needs a plan change or an exception decision from the City;
Decisions, auctions and closures that change what becomes available, and when.
Helsinki Research Forum: capital-region office vacancy 18.6%; it rose most in Aviapolis in the third quarter of 2026.
The local paper reports that empty City-owned detached houses on Osmanranta and Virmajuurenpolku, left on green land, are to be demolished to cut guarding and upkeep costs (open lead of a log-in article).
After a suspected arson at the long-empty vocational-school building on Ojahaantie the City says it is trying to speed up demolition of its empty buildings (open lead of a log-in article).
Kielotie 28 (1983) is to be demolished; no use is planned for the site (open lead of a log-in article).
The mayor's budget proposal lists buildings with no City use that cannot be let for their condition, to be assessed in 2026 with demolition advanced where possible; the budget table shows 13,004 m² of empty lettable space, up from 8,581 m² in 2024.
17 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 | 54 | 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 | 26 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 | 48 | Live 2026-10-09 | Copernicus open data (© European Union, Copernicus Land Monitoring Service 2006–2021, EEA) |
| 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 | 2 | 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) |
| Apartment blocks registered as empty (national building register, Ryhti) Finnish Environment Institute (Syke), Ryhti built-environment information system — data from the Digital and Population Data Services Agency and the municipalities; addresses joined from Ryhti open_address by scripts/reuse/import-espoo-ryhti-empty.ts | Open download | 14 | Live 2026-10-09 | CC BY 4.0 (Syke open data: credit Finnish Environment Institute Syke, Ryhti buildings) |
| Houses of 150 m² or more registered as empty (national building register, Ryhti) Finnish Environment Institute (Syke), Ryhti built-environment information system — data from the Digital and Population Data Services Agency and the municipalities; addresses joined from Ryhti open_address by scripts/reuse/import-espoo-ryhti-empty.ts | Open download | 361 | Live 2026-10-09 | CC BY 4.0 (Syke open data: credit Finnish Environment Institute Syke, Ryhti buildings) |
| Office buildings of 1,000 m² or more, with floor area and storeys (City of Vantaa building register) City of Vantaa — Kiinteistöt ja tilat / city survey data | Open API | 154 | Live 2026-10-09 | CC BY 4.0 (Vantaan kaupunki, buildings dataset on avoindata.fi / HRI) |
| Industrial and warehouse buildings with 3+ storeys and 500 m² or more (City of Vantaa building register) City of Vantaa — Kiinteistöt ja tilat / city survey data | Open API | 76 | Live 2026-10-09 | CC BY 4.0 (Vantaan kaupunki, buildings dataset on avoindata.fi / HRI) |
| Local plans in preparation (planning register) City of Vantaa — city planning (WFS kaava:kaavat_vireilla) | Open API | 84 | Live 2026-10-09 | No licence stated on this layer (the City's catalogue datasets are CC BY 4.0) — used with credit to the City of Vantaa |
| Brownfield land (OpenStreetMap) OpenStreetMap contributors | Open API | 26 | Live 2026-10-09 | ODbL 1.0 |
Open data cannot see everything. Tell us about a building in Vantaa 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.