Site

Existing residential rzlt fl0000001756 · Buildable

Existing Residential (RZLT FL0000001756)

Castleknock · FingalNew

78StrongOn the RZLT map (3% land tax)· Residential Zoned Land Tax

On the 2027 RZLT map with no live permission for 10+ homes on it

2 more reasons

Built far below what the zoning allows: About 2,663 m² of buildings on 0.56 ha (plot ratio 0.48, 2 storeys max) · source, 25 Sept 2026
0.56 ha zoned R2 (RS - Residential: Provide for residential development and protect and improve re) · source, 5 Apr 2023

On the RZLT map, no permissionUnderused site

Area: 0.56 ha
Zoning: R2
Homes: 15–44 homes (indicative density 35 100dph)
FW26A/0292E: REFUSE PERMISSION FOR RETENTION — Retention for garden room, gym and study to rear garden: 5 Oct 2026

Get an email when anything changes on this site.

Who to contact: Land Registry folio (€5 search) · No organisation on record for this land. The registered owner is on the Land Registry folio: search landdirect.ie by map (a small fee applies).

What could be built

15–44 homes (indicative density 35 100dph)

Loading capacity…

What it might be worth

Indicative, not a valuation

Planning history

Planning on and around the site

Radius m: 250

Near

Years: 5
Total: 20

Appeals

Total: 1
Tagged: 1

Inspector recommendations are shown only where the inspector's report has been read and tagged; "not extracted" is not the same as "no recommendation". Sources: npad, 25 Sept 2026; acp, 25 Sept 2026; bcms, 25 Sept 2026

Deadlines running

Radius m: 250
Count: 1

Clocks (1)

Kind	Entity type	Occurred at	Deadline at	Deadline kind	Summary
decision	application	7 Sept 2026	5 Oct 2026	appeal	FW26A/0292E: REFUSE PERMISSION FOR RETENTION — Retention for garden room, gym and study to rear garden

Deadlines are computed once, by the connector that saw the event, from the statutory rule; never estimated here.

More in Fingal: development land · derelict sites · council land for sale · RZLT map

Similar schemes nearby

Base rate from past decisions nearby, not a prediction for this site

Radius m: 2,000
Years: 5
Min units: 10
Homes granted: 0

Base rates (2)

Label	N	Of	Text
Applications for 10+ homes granted	0	0	0 of 0 decided applications for 10+ homes within 2 km in 5 years were granted
Appealed schemes granted by the Commission	0	0	0 of 0 of those schemes that were appealed ended with a grant

Base rate from past decisions nearby, not a prediction for this site. Small N means a wide range: treat anything under 10 decisions as anecdote. Sources: acp, 25 Sept 2026; npad, 25 Sept 2026

What's happening nearby

100 recent events

Recent activity within 250 m

Observations close (s.34, 5 weeks) ends 2 Oct 2026 6 days
FW26A/0335: Consisting of the construction of a 2-beroom two-storey house to the s
source
Appeal window closes (s.37, 4 weeks) ends 5 Oct 2026 9 days
FW26A/0292E: Retention for garden room, gym and study to rear garden
source
Judicial review window closes (s.50, 8 weeks) ends 14 Oct 2026 18 days
501541: Retention of aerial delivery hub consisting of single storey storage and ancillary office cabin container, and all assoc
source

24 Sept 2026 On the Residential Zoned Land Tax map
On the 2027 draft RZLT map
source
24 Sept 2026 RZLT-liable with no live permission for 10+ homes
RZLT-liable and no live permission for 10+ homes on it
source
24 Sept 2026 Built far below what the zoning allows
About 2,663 m² of buildings on 0.56 ha (plot ratio 0.48, 2 storeys max)
source
14 Sept 2026 Commencement notice · 196 m
Work commenced at 2 Rockfield Close, Dublin 15, Dublin under FW26A/0198E (1 dwelling unit)
source
7 Sept 2026 Decision · 69 m
FW26A/0292E: REFUSE PERMISSION FOR RETENTION — Retention for garden room, gym and study to rear garden
source
28 Aug 2026 New application · 200 m
FW26A/0335: application received — Consisting of the construction of a 2-beroom two-storey house to the s
source
19 Aug 2026 Appeal decided · 205 m
ACP 501541: Appeal withdrawn S.140(1)(a)
source
20 Jul 2026 New application · 69 m
FW26A/0292E: application received — Retention for garden room, gym and study to rear garden
source
7 Jul 2026 Decision · 175 m
FW26A/0198E: GRANT PERMISSION — For the construction of a single three bedroom two storey dwelling to
source
6 Jul 2026 Decision · 167 m
FW26A/0131E: GRANT PERMISSION — erection of extension to the existing industrial warehouse unit, incre
source
18 Jun 2026 Decision · 157 m
FW26A/0173E: GRANT PERMISSION — Planning Permission to demolish a conservatory and garden shed and bui
source
15 Jun 2026 Appeal received by the Commission · 205 m
ACP 501541: Retention of aerial delivery hub consisting of single storey storage and ancillary office cabin container, and all assoc
source
15 Jun 2026 Appeal lodged · 205 m
FW25A/0428E: appealed to An Coimisiún Pleanála (PL-501541-DF-26) — The development consists of an aerial delivery hub consisting of 1 no.
source
11 Jun 2026 Further information received · 167 m
FW26A/0131E: further information received — erection of extension to the existing industrial warehouse unit, incre
source
20 May 2026 Sale recorded (PPR) · 211 m
€514,000 · 65 GLENVILLE DR, BLANCHARDSTOWN, DUBLIN 15 · second-hand
source
20 May 2026 Further information requested · 167 m
FW26A/0131E: further information requested — erection of extension to the existing industrial warehouse unit, incre
source
19 May 2026 Decision · 205 m
FW25A/0428E: REFUSE PERMISSION FOR RETENTION — The development consists of an aerial delivery hub consisting of 1 no.
source
15 May 2026 New application · 175 m
FW26A/0198E: application received — For the construction of a single three bedroom two storey dwelling to
source
1 May 2026 Further information received · 205 m
FW25A/0428E: further information received — The development consists of an aerial delivery hub consisting of 1 no.
source
30 Apr 2026 New application · 157 m
FW26A/0173E: application received — Planning Permission to demolish a conservatory and garden shed and bui
source
21 Apr 2026 Decision · 157 m
FW26A/0146E: Invalid Application — Demolish a conservatory and garden shed and build a 39m2 flat roof kit
source
10 Apr 2026 New application · 157 m
FW26A/0146E: application received — Demolish a conservatory and garden shed and build a 39m2 flat roof kit
source
9 Apr 2026 Decision · 157 m
FW26A/0141E: Invalid Application — The demolition of an existing conservatory and block built garden shed
source
7 Apr 2026 New application · 157 m
FW26A/0141E: application received — The demolition of an existing conservatory and block built garden shed
source
2 Apr 2026 New application · 167 m
FW26A/0131E: application received — erection of extension to the existing industrial warehouse unit, incre
source
31 Mar 2026 Decision · 103 m
FW26A/0049E: GRANT PERMISSION & GRANT RETENTION — Planning permission is sought for: 1/ Retention permission for
source
26 Mar 2026 Decision · 175 m
FW26A/0039E: GRANT PERMISSION — Permission is sought for the construction of a single three bedroom tw
source
26 Mar 2026 Decision · 186 m
FW25A/0539E: GRANT PERMISSION FOR RETENTION — for the retention and continuation of use as Montessori school to faci
source
10 Mar 2026 Decision · 204 m
FW25A/0285E: App withdrawn as no AI recd in 6 months — the change of use and conversion of two adjacent dwellings, a semi-det
source
3 Mar 2026 Further information received · 186 m
FW25A/0539E: further information received — for the retention and continuation of use as Montessori school to faci
source

Events from council registers, the Commission, BCMS, council meetings and the RZLT maps, each with its source link. Open clocks computed with statutory periods (s.34, s.37, s.50 PDA 2000, s.251 Christmas disregard) or as published.

Homes planned nearby

Radius m: 1,000

Totals

Sites: 5
Homes: 794
Started: 235
Sites started: 2
Unbuilt: 472
Sites unbuilt: 2
Sites lapsing: 0
Sites lapsed: 0
Appealed: 87
Sites appealed: 1
Started pct: 30
Not started: 472

As of

Computed at: 2026-09-19T06:05:22+00:00
Sites in table: 4,168

Sites (5)

Source	Council	Ref	Name	Address	Units
application	FINGAL	LRD0052/S3E	Porterstown	Townland of Porterstown, Clonsilla,, Dublin 15	302
application	FINGAL	LRD0021/S3E

Zoning, services and constraints

Zoning and the RZLT map

Rzlt

Available: Yes
On site: Yes
Note: This land is on an RZLT map — the owner is liable for an annual 3 % tax.

Zones (5)

Objective text	Plan id	Fetched at	Code	Label	Meaning
OS - Open Space: Provide recreational and amenity resources for urban and rural populations subject to strict development controls. Only community facilities…	FINGAL_DP_OWN	11 Sept 2026	—	—	—
RS - Residential: Ensure that any new development in existing areas would have a minimal impact on and enhance existing residential amenity.	FINGAL_DP_OWN	11 Sept 2026	—	—	—
RD - Road: N/A	FINGAL_DP_OWN	11 Sept 2026	—	—	—
OS - Open Space: Preserve and provide for open space and recreational amenities	Fl-001:DP:the-fingal-development-plan-2023-2029	11 Sept 2026	G4	Open space	Open space and recreational amenity, to be preserved as such.
RS - Residential: Provide for residential development and protect and improve residential amenity	Fl-001:DP:the-fingal-development-plan-2023-2029	11 Sept 2026	R2	Existing residential	An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour'…

Objective text is quoted from the development plan as published on MyPlan (GZT). The plain-English line is our gloss. Sources: zoning, 26 Sept 2026; rzlt, 25 Sept 2026

Constraints

Available: Yes
Buffer m: 50
Opw flood extent nearby: No

Kinds (1)

Kind	Label	Count
radon	Radon risk area	2

Flood extents are OPW data we may not redistribute: shown as a yes/no and a link to floodinfo.ie. Sources: constraints, 11 Sept 2026; constraints.radon, 11 Sept 2026

Water and drainage

Radius m: 2,000

Masked

Count: 240
Reason: source licence forbids redistribution; see the operator's own register

Links (3)

Name	Note
Uisce Éireann wastewater treatment capacity register	Wastewater and water supply headroom per plant; check the plant serving this site.
Uisce Éireann pre-connection enquiry	The formal answer on whether a connection is feasible.
ESB Networks capacity heatmaps	Available demand capacity at the nearest substations.

Water, wastewater and electricity verdicts are in the value section; check them with Uisce Éireann and ESB Networks (links) before relying on them. Source: esbn, 11 Sept 2026

Sources

Site record (rzlt_parcel) · as of 25 Sept 2026
On the Residential Zoned Land Tax map · as of 1 Jan 2027
RZLT-liable with no live permission for 10+ homes · as of 1 Jan 2027
Built well below what the zoning allows · as of 25 Sept 2026
Zoning · as of 5 Apr 2023
npad · as of 25 Sept 2026
acp · as of 25 Sept 2026
lda_lands · as of 11 Sept 2026
consult · as of 25 Sept 2026
moderngov · as of 25 Sept 2026
rzlt · as of 25 Sept 2026
Planning applications: as of 22 Sept 2026 — National planning feed (NPAD); descriptions are truncated at source and applicants are organisations only, where a council register publishes them.
Appeals: as of 18 Sept 2026
Permitted, not started: as of 19 Sept 2026 — Grants of 10+ homes since 2017; 'not started' means no matched commencement notice.
RZLT map: as of 11 Sept 2026 — Latest annual RZLT edition per council; parcels under 0.1 ha are left out.
Zoning: as of 11 Sept 2026 — Generalised zoning (MyPlan GZT) and council layers; Dublin councils only for now.
Council land disposals (s.183): as of 18 Sept 2026 — Only disposals the council minutes locate on a map are shown; the last three years.
Public land: as of 11 Sept 2026 — The LDA's register of relevant public land.
Constraints: as of 11 Sept 2026 — OPW flood extents are licensed for internal use only: shown as a yes/no and a link to floodinfo.ie.
Transport stops: as of 25 Sept 2026 — NTA GTFS; rail, Luas and Metro stops used for distance to rail.
Listings: as of 11 Sept 2026 — Daft listings: on-market badge and agent business name only; never exported.
Sites: as of 25 Sept 2026 — Rebuilt nightly from the layers above.
Scores: as of 25 Sept 2026 — Rule score v0: signal weights x recency x size x zoning fit. Not a probability.
Planning applications: as of 30 Jul 2026 — The DCC feed has nothing received after 2026-07-30; newer applications may be missing.
Ownership: date unknown — We do not hold Land Registry ownership. Use the folio link-out on each site (a small fee applies).
Receiverships: date unknown — Not tracked yet.
Servicing (Uisce Éireann, ESB): date unknown — Capacity registers are licensed for internal use only; shown as link-outs.
Area covered: date unknown — The four Dublin councils (DCC, DLR, Fingal, SDCC).

Site pack generated 26 Sept 2026.

Name	Sites	Homes
Castlethorn Developments Luttrellstown Limited	1	302
McHugh Property Holdings Limited	1	170
J &C Porterstown Road Development Company Limited	1	87

Public land nearby

Radius m: 1,000

Council items (2)

Council	Committee	Meeting at	Item no	Title	Kind
FINGAL	Blanchardstown-Mulhuddart/Castleknock/Ongar Area Committee (Services B - Strategic & General Matters)	3 Sept 2026	32a	Proposed lease of land at Kellystown, Dublin 15 to St Mochta's Football Club, Porterstown Road, Dublin 15	s183_disposal
FINGAL	County Council	7 Jul 2025	F/312/25	Proposed Disposal of land at Porterstown Road, Porterstown, Dublin 15 to Castlethorn Developments Luttrellstown Limited	s183_disposal

Sources: lda_lands, 11 Sept 2026; moderngov, 25 Sept 2026

Transport and schools

Radius m: 1,000
Stop count: 22
Facility count: 5

Stops (10)

Agency	Stop id	Name	Distance m
nta	8240DB001902	Orchard Court	226.8
nta	8240DB001854	Orchard Court	257
nta	8240DB001844	Coolmine Fire Stn	348.8
nta	8240DB001884	Porters Road	360.8
nta	8240DB001883	Scoil Oilibheir	430.3
nta	8240DB001853	Coolmine Woods	505.1
nta	8240DB007218	The Courtyard	524.1
nta	8240DB007217	The Courtyard	537.9
nta	8240DB007219	Limelawn	546.7
nta	8240DB007227	Limelawn	551.7

Schools (5)

Kind	Ref	Name	Council	Distance m
school_primary	19505L	SN OILIBHEIR	FINGAL	588.2
school_primary	18778S	S N NAOMH MOCHTA	FINGAL	665.3
school_postprimary	91315O	Scoil Phobail Chuil Mhin	FINGAL	714.4
school_primary	19470S	ST FRANCIS XAVIER SENIOR N S	FINGAL	795.2
school_primary	19435Q	ST FRANCIS XAVIER J N S	FINGAL	803.7

Sources: gtfs, 25 Sept 2026; schools, 11 Sept 2026

Existing Residential (RZLT FL0000001756)

What could be built

What it might be worth

Planning history

Planning on and around the site

Near

Appeals

Deadlines running

Clocks (1)

Similar schemes nearby

Base rates (2)

What's happening nearby

Recent activity within 250 m

Homes planned nearby

Totals

As of

Sites (5)

Zoning, services and constraints

Zoning and the RZLT map

Rzlt

Zones (5)

Constraints

Kinds (1)

Water and drainage

Masked

Links (3)

More detail

On the market

All sales

New build

Sources

Applicants (3)

Public land nearby

Council items (2)

Transport and schools

Stops (10)

Schools (5)