Blackthorn Drive and Carmanhall Road

Glencullen-Sandyford · Dún Laoghaire-RathdownNew

Lands forming part of development generally known as Rockbrook located at the junction of Blackthorn Drive and Carmanhall Road,, Rockbrook Estate, Sandyford Business District, Dublin 18

55Worth a lookPermitted, not started· live grant, no commencement notice

428 homes granted 4 Sep 2025, not started; permission runs to 4 Sep 2030

1 more reason

1.75 ha zoned M5 (Objective MIC: MIC To consolidate and complete the development of the mixed use ) · source, 1 Apr 2022

Area: 1.75 ha
Zoning: M5
Homes: 428 homes (granted)
Permission expires: 4 Sept 2030

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

428 homes (granted)

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: 42

Appeals

Total: 5
Tagged: 4

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, 26 Sept 2026; acp, 25 Sept 2026; bcms, 25 Sept 2026

Deadlines running

Radius m: 250
Count: 1

Clocks (1)

Kind	Deadline kind	Deadline at	Days left	Summary	Basis
permission_expiry	permission_expiry	4 Sept 2030	1,439	Permission LRD25A/0301/WEB expires unless works start (s.40 PDA 2000)	signal

Deadlines are computed once, by the connector that saw the event, from the statutory rule; never estimated here. Sources: acp, 25 Sept 2026; consult, 26 Sept 2026; moderngov, 25 Sept 2026; npad, 26 Sept 2026; rzlt, 25 Sept 2026

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, 26 Sept 2026

What's happening nearby

100 recent events

Recent activity within 250 m

25 Sept 2026 No longer: built far below what the zoning allows
About 4,326 m² of buildings on 1.75 ha (plot ratio 0.25, 7 storeys max)
source
24 Sept 2026 Permission granted, not started
428 homes granted 04 Sep 2025, expires 04 Sep 2030
source
24 Sept 2026 Built far below what the zoning allows
About 4,326 m² of buildings on 1.75 ha (plot ratio 0.25, 7 storeys max)
source
14 Sept 2026 Commencement notice · 213 m
Work commenced at 62 Lakelands Close, Dublin, A94 A272 under D26B/0079/WEB (1 dwelling unit)
source
26 Aug 2026 Sale recorded (PPR) · 242 m
€880,000 · 62 STILLORGAN WOOD, STILLORGAN, DUBLIN 18 · second-hand
source
17 Aug 2026 Commencement notice · 209 m
Work commenced at Blackthorn Road, Dublin under D25A/0719/WEB
source
14 Aug 2026 Decision · 92 m
D26A/0602/WEB: DECLARE APPLICATION INVALID — applying for permission for the installation of a free-standing double-sided di

Zoning, services and constraints

Zoning and the RZLT map

Rzlt

Available: Yes
On site: No

Zones (2)

Code	Label	Meaning	Objective text	Plan id	Valid from
M5	Mixed use — outer core	A mix of uses complementing a town centre, with less retail and residential than the core itself.	Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.	DR-001:DP:county-development-plan-2022-2028	1 Apr 2022
M5	Mixed use — outer core	A mix of uses complementing a town centre, with less retail and residential than the core itself.	Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.	DR-001:DP:county-development-plan-2022-2028	1 Apr 2022

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: Yes
Opw flood map url: https://www.floodinfo.ie/map/floodmaps/

More detail

On the market

Radius m: 1,000
Years: 3

All sales

Count: 168
Median price: 537,500
First sale: 2024-01-25
Last sale: 2026-08-26

Sales are from the Property Price Register (new dwellings, VAT-exclusive where flagged). Positions are geocoded from addresses, not surveyed. Source: ppr, 25 Sept 2026

Sources

Site record (pipeline_site) · as of 26 Sept 2026
Permission granted, not started · as of 4 Sept 2025
Zoning · as of 1 Apr 2022
npad · as of 26 Sept 2026
acp · as of 25 Sept 2026
lda_lands · as of 11 Sept 2026
consult · as of 26 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 26 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.

Loading planning history, what’s nearby and constraints…

More in Dún Laoghaire-Rathdown: development land · derelict sites · council land for sale · RZLT map

Kind

Deadline kind

Deadline at

Days left

Summary

Basis

permission_expiry

4 Sept 2030

1,439

Permission LRD25A/0301/WEB expires unless works start (s.40 PDA 2000)

signal

Label

Text

Applications for 10+ homes granted

0 of 0 decided applications for 10+ homes within 2 km in 5 years were granted

Appealed schemes granted by the Commission

0 of 0 of those schemes that were appealed ended with a grant

Code

Label

Meaning

Objective text

Plan id

Valid from

Mixed use — outer core

A mix of uses complementing a town centre, with less retail and residential than the core itself.

Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.

DR-001:DP:county-development-plan-2022-2028

1 Apr 2022

Mixed use — outer core

A mix of uses complementing a town centre, with less retail and residential than the core itself.

Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.

DR-001:DP:county-development-plan-2022-2028

1 Apr 2022

Source	Council	Ref	Name	Address	Units
application	DLR	LRD25A/0301/WEB	Blackthorn Drive and Carmanhall Road	Lands forming part of development generally known as Rockbrook located at the junction of Blackthorn Drive and Carmanhall Road,, Rockbrook Estate, Sandyford …	428
shd	DLR	ABP-311722	Siemens Site	Former Siemens Site, Corner of Blackthorn Avenue and Ballymoss Road, Sandyford Industrial Estate, Dublin 18. (www.siemenssiteshd.ie)	190
application	DLR	LRD25A/0530/WEB	Avid Technology site	Former Avid Technology site, Corner of Blackthorn Road and Carmanhall Road, Sandyford, Dublin 18	183
application	DLR	LRD25A/0372/WEB	Balally	In the townland of Balally, at the existing Balally Shopping Centre, Blackthorn Drive, Sandyford, Dublin 16	100
application	DLR	D25A/0193/WEB	St. Annes Convent	St. Annes Convent, Kilmacud Road Upper, Kilmacud, Stillorgan, Co. Dublin, A94P5W6	19
shd	DLR	ABP-305940	Aldi Site	Former Aldi Site, Carmanhall Road, Sandyford Business District, Dublin 18. (www.sandyfordcentralshd.ie)	564
application	DLR	LRD23A/0505	Block C at the former Allegro Site	The Sentinel, Block C at the former Allegro Site, Blackthorn Drive, Sandyford Business Estate, Sandyford, Dublin 18.	110
application	DLR	D25A/0200/WEB	St. Annes Convent	St. Annes Convent, Kilmacud Road Upper, Kilmacud, Stillorgan, Co. Dublin, A94P5W6	19
application	DLR	D22A/0475	St Anne's Convent	St Anne's Convent, Kilmacud Road Upper, Kilmacud Stillorgan, Dublin, Co Dublin	19
application	DLR	D18A/0785	Beacon South Quarter mixed use scheme	Site of the previously permitted Block B4 (c.0.33 ha) of the Beacon South Quarter mixed use scheme, located at the junction of Blackthorn Drive and Blackthor…	84

Agency	Stop id	Name	Distance m
nta	8250DB004847	Blackthorn Drive	140.5
nta	8250DB004848	Maple Avenue	271.3
nta	8250GA00297	Stillorgan	273.4
nta	8250GA00298	Stillorgan	280.5
nta	8250DB000447	Stillorgan Luas	297.4
nta	8250DB007057	Stillorgan Luas	307.7
nta	8250DB000449	Blackthorn Road	327.3

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.

Kind	Ref	Name	Council	Distance m
school_primary	17470I	ST RAPHAELAS N S	DLR	712.9
school_postprimary	60361V	St Raphaela's Secondary School	DLR	767.4
school_postprimary	60261R	St Benildus College	DLR	797.5
school_primary	19723V	QUEEN OF ANGELS PRIMARY SCHOOL	DLR	827.6
school_primary	19319O	ST Olaf's National School	DLR	903.2

Blackthorn Drive and Carmanhall Road

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

Zoning, services and constraints

Zoning and the RZLT map

Rzlt

Zones (2)

Constraints

More detail

On the market

All sales

Sources

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

Zoning, services and constraints

Zoning and the RZLT map

Rzlt

Zones (2)

Constraints

More detail

On the market

All sales

Sources

Homes planned nearby

Totals

As of

Sites (10)

Applicants (1)

Public land nearby

Council items (1)

Transport and schools

Stops (10)

Kinds (1)

Water and drainage

Masked

Links (3)

Schools (5)