Derelict and unbuilt land in Ongar
As of 25 Sep 2026, Ongar (Fingal) has 1,299 homes permitted but not started and 276 ha zoned for housing with no permission. 4 building sites started work and did not finish and the council has put 1 land disposal to councillors.
4 Stalled builds
4 sites started but not finished, 497 homes.
- Barnwell Way & Barnwell Lane, Hansfield, Dublin 15 · 146 homes; commenced 17 Apr 2015, no completion certificate, planned end Apr 2016
- Land in Ongar · 146 homes; commenced 16 Sep 2014, no completion certificate, planned end Mar 2015
- Hansfield Phase 3: 9 houses · 146 homes; commenced 19 Jun 2015, no completion certificate, planned end Mar 2016
- Village Centre, Block C · 59 homes; commenced 14 Apr 2021, no completion certificate, planned end Apr 2022
2 Permitted, not started
1,299 homes with planning permission and no start, across 2 permissions.
- Barberstown · 1243 homes granted 30 Mar 2023, expires 30 Mar 2033
- Allendale House · 56 homes granted 26 Aug 2025, expires 26 Aug 2030
1 Permission expired
1 permission expired recently without a start.
- Hansfield · 106 homes, expired 12 Oct 2025
320 Zoned for housing, no permission
276 ha on the RZLT map with no live permission for 10 or more homes (320 parcels).
- Land in Ongar · 8.4 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 5.0 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 4.5 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 4.2 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 4.1 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 4.1 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 3.7 ha, RZLT-liable and no live permission for 10+ homes on it
- Land in Ongar · 3.7 ha, RZLT-liable and no live permission for 10+ homes on it
Land on the map is liable for the Residential Zoned Land Tax, 3% of market value a year.
74 Public land
55.6 ha of publicly owned land (74 sites); the largest holder is Fingal County Council.
- Public land in Ongar · 4.6 ha, Held by Fingal County Council
- Public land in Ongar · 3.3 ha, Held by The Minister for Education and Skills
- Public land in Ongar · 3.1 ha, Held by Fingal County Council
- Public land in Ongar · 2.8 ha, Held by Fingal County Council
- Public land in Ongar · 2.7 ha, Held by The Minister for Education and Skills
- Public land in Ongar · 2.3 ha, Held by The Minister for Education and Skills
- Public land in Ongar · 2.2 ha, Held by Fingal County Council
- Public land in Ongar · 2.1 ha, Held by The Minister for Education and Skills
1 Council selling land
1 council land disposal put to councillors (section 183).
- Land in Ongar · Notice dated 13 Nov 2023
Nothing on the registers for Ongar: derelict sites.
Open Ongar on the map Every site in Ongar
Questions about Ongar
New sites in Fingal, every Monday
The week's new sites: permission running out, council selling land, derelict or stalled. Each with its source. Free while in beta.
Data as of 25 Sep 2026. Sources: Council derelict sites registers (Derelict Sites Act 1990); Commencement and completion notices (National Building Control Office); Planning applications (Department of Housing national planning data); Council Residential Zoned Land Tax maps; Land Development Agency, Register of Relevant Lands; Council meeting agendas (s.183 disposal notices).
Facts from public registers, gathered by Buildable (https://buildable.ie/land/fingal/13260418/report). Free to share and quote with a link. Not advice.