Planning Register
Site report · 500 m radius · generated 13 Sept 2026, 16:27

Ashton Avenue

Eircode Coordinates 53.28681, -6.30735Local authority South Dublin County Council
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.

What closes soonest 3 open windows

  • Appeal window closes 14 Sept 20261 day left
    SD26B/0361WInvalid - Site Notice — Construction of a 2 storey rear extension to existing dwelling
    4 weeks from the council's decision (17 Aug 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer) · 92 m away
  • Observations close 17 Sept 20264 days left
    SD26B/0372Wapplication received — Retention for a flat roof over the existing front porch extension; revised ground floor front elevation fenestration; re
    5 weeks from receipt (13 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 478 m away
  • Observations close 22 Sept 20269 days left
    SD26A/0197Wapplication received — The proposed development will consist of the subdivision of the existing rear garden space, to enable the erection of 2n
    5 weeks from receipt (18 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council · 268 m away
Sources: acp, consult, moderngov, npad, rzlt · fetched 12 Sept 2026, 00:05
SourceLicenceFetchedLink
acpCC-BY-4.012 Sept 2026, 00:05open
consultpublic12 Sept 2026, 02:04open
moderngovpublic12 Sept 2026, 21:48open
npadCC-BY-4.012 Sept 2026, 20:38open
rzltCC-BY-4.012 Sept 2026, 00:23open

Where this is

Townland
Knocklyon
Settlement
Dublin city and suburbs
Electoral division
Ballyboden
Local electoral area
Rathfarnham-Templeogue
Local authority
South Dublin County Council
Parcel
Tailte Éireann 1843142 (freehold), 288 m²

Census 2022, small area 267013014

282
people
99
households
104
dwellings

89.9% owner-occupied, 5.1% privately rented, 0% social. Vacancy 1.9%.

Sources: places, parcels · fetched 11 Sept 2026, 21:28
SourceLicenceFetchedLink
placesCC-BY-4.011 Sept 2026, 21:28open
parcelsCC-BY-4.011 Sept 2026, 19:06open

Zoning evaluated against the point

R2 — Existing residential south dublin county development plan 2022 2028 · 8 Mar 20228 Mar 2028

RES: To protect and/or improve residential amenity

What that means: An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

Source: zoning · fetched 12 Sept 2026, 02:04
SourceLicenceFetchedLink
zoningCC-BY-4.012 Sept 2026, 02:04open

Designations and constraints within 500 m

No OPW CFRAM/NIFM flood extent within 500 m.

DesignationCountExamples
NIAH-recorded building2Saint Mary's Convent; Ballyroan House
Radon risk area1About 1 in 20 homes in this area is likely to have high radon levels
Sources: constraints, constraints.niah, constraints.radon · fetched 11 Sept 2026, 19:11
SourceLicenceFetchedLink
constraintsmixed — CC-BY-4.0 except OPW flood (CC-BY-NC-ND-4.0, publishable=false)11 Sept 2026, 19:11open
constraints.niahCC-BY-4.011 Sept 2026, 19:11open
constraints.radonCC-BY-4.011 Sept 2026, 19:11open

Residential Zoned Land Tax

This site is on an RZLT mapthe draft map 2027 and the final map 2026 (0.03 ha). The owner is liable for an annual 3% tax on market value while it stays there. Submissions on the draft map closed 1 Apr 2026.
Source: rzlt · fetched 12 Sept 2026, 00:23
SourceLicenceFetchedLink
rzltCC-BY-4.012 Sept 2026, 00:23open

Planning applications 95 in 5 years within 500 m

Open for observation

  • 22 Coolamber Park, Knocklyon, Dublin 16, D16 A0P0 observations close 17 Sept 2026 · 4 days left
    Retention for a flat roof over the existing front porch extension; revised ground floor front elevation fenestration; revised first floor side elevation fenestration.
    SD26B/0372Wreceived 13 Aug 2026478 m away
  • 5/5A, Knocklyon Cottages, Knocklyon Road, Knocklyon, Dublin 16 observations close 22 Sept 2026 · 9 days left
    The proposed development will consist of the subdivision of the existing rear garden space, to enable the erection of 2no. single storey, 3-bed, detached dwellings; access to the development will be provided via a new roadway, from Knocklyon Rd; and, all associated site works, including landscaping, boundary walls and treatments, Suds drainage, to facilitate the development.
    SD26A/0197Wreceived 18 Aug 2026268 m away

Recent decisions and applications

63
Grant permission
4
(undecided)
3
Declared exempt
3
Grant permission for retention
  • 60, Elkwood, Ballyroan, Dublin 16, D16A373 Invalid - site notice
    Construction of a 2 storey rear extension to existing dwelling
    SD26B/0361Wreceived 4 Aug 2026decided 17 Aug 202692 m away
  • 66, Knockcullen Drive, Knocklyon, Dublin, D16 K0H2 Referral
    Demolition of portions of the existing rear and side external walls at ground floor level and the rear wall of the first floor; Demolition of the existing garage roof and the existing rear utility room, and the construction of (a) A single storey extension to the rear and side of the existing dwelling; (b) The partial conversion of the existing garage to habitable accommodation; (c) A first floor extension to the rear of dwelling, including the extension of the existing roof over the proposed first floor extension; (d) The widening of the existing vehicular entrance; and (e) Associated external works, including a new front entrance, entrance steps, planter, landscaping and all ancillary site development works.
    SD26B/0344received 24 Jul 2026155 m away
  • 17 Ballyroan Park, Templeogue, Dublin 16, D16 E9T4 Grant permission & grant retention
    Retention permission for two Velux rooflights to the front roof slope for single-storey extension to the rear and side, widening of the existing front vehicular access, and an attic conversion for storage purposes, including a dormer window to the rear roof slope and two rooflights to the front roof slope.
    SD26B/0249Wreceived 22 May 2026decided 2 Jul 2026354 m away
  • 24 Ballyroan Crescent, Rathfarnham, Dublin, D16X5R2 Grant permission
    Attic conversion for storage, raising the side gable to form a half-hipped roof with roof lights.
    SD26B/0231Wreceived 14 May 2026decided 8 Jul 2026476 m away
  • 19, Templeroan Downs, Templeroan, Dublin 16, D16NX93 Grant permission
    Conversion of existing attic space comprising of modification of existing roof structure, raising of existing gable c/w window, new access stairs, 2no. roof windows to the front and flat roof dormer to the rear.
    SD26B/0197Wreceived 24 Apr 2026decided 18 Jun 2026169 m away
  • 68, Dargle Wood, Dublin 16 Refuse ext. of duration of permission
    Construction of a two storey extension at the side and a single storey extension to the rear of existing semi-detached house; canopy at the front of the house above the main entrance and continuing over a new single storey bay window; 3 no. west facing roof lights to the rear of the house; 3 no. new west-facing roof-lights to the single storey extension to the rear of the house; 3 no. windows to the new end wall and gable; connection into existing public mains; internal reconfiguration; all with a total floor area of approx.. 49sq.m and associated site works.
    SD21B/0201/EPreceived 8 Apr 2026decided 2 Jun 2026431 m away
  • 24, Ballyroan Crescent, Rathfarnham, Dublin, D16 X5R2 Grant permission
    The development consists of an attic conversion for storage, adding a dormer roof to the rear, and all ancillary works necessary to facilitate the development.
    SD26B/0115Wreceived 19 Mar 2026decided 30 Apr 2026476 m away
  • 54, Anne Devlin Road, Rathfarnham, Dublin 14, D14A3P0 Grant permission
    Garage conversion to habitable room with single-storey flat roof extension to the front of existing dwelling and dormer extension to rear of existing dwelling. Bike storage shed to front garden and all associated site works.
    SD26B/0088Wreceived 3 Mar 2026decided 17 Apr 2026477 m away

`description` is truncated at source (80 chars for DLR, 70 for Fingal) and `applicant` is null nationally — NPAD publishes neither in full.

Source: npad · fetched 12 Sept 2026, 20:38
SourceLicenceFetchedLink
npadCC-BY-4.012 Sept 2026, 20:38open

Appeals 4 in 5 years within 500 m

Source: acp · fetched 12 Sept 2026, 00:05
SourceLicenceFetchedLink
acpCC-BY-4.012 Sept 2026, 00:05open

Commencement notices 23 in 3 years within 500 m

  • 54 Anne Devlin Road, Dublin 14, Dublin, D14 A3P0 Short commencement notice
    7 Aug 2026CN0145955SDSD26B/0088W490 m away
  • 29 Templeroan Way, Dublin 16, Dublin, D16 C8C4 Opt out commencement notice
    20 Jul 2026CN0145125SDSD25B/0541W474 m away
  • 3 Ballyroan Crescent, Dublin 16, Dublin, D16 N2Y3 Opt out commencement notice
    8 Jul 2026CN0144654SDSD25B/0670W411 m away
  • 21 Ashton Close, Dublin, D16 V528 Opt out commencement notice
    2 Jun 2026CN0143051SDSD24B/0373209 m away
  • 20 Coolamber Park, Knocklyon, South Dublin, D16 E4W0 Short commencement notice
    28 Mar 2026CN0140086SDSD25B/0658W482 m away
  • Ballyroan Park, Dublin 16, South Dublin, D16 N6E5 Opt out commencement notice
    3 Feb 2026CN0138035SDSD25B/0605W429 m away
  • 60 Knocklyon Road, Templeogue, South Dublin, D16 XE42 Opt out commencement notice
    5 Jan 2026CN0137232SDSD25B/0418W497 m away
  • 5 Ballyroan Heights, Ballyroan, South Dublin, D16 T3Y0 Opt out commencement notice
    10 Nov 2025CN0135414SDSD25B/0456W391 m away
  • 22 Coolamber Park, Knocklyon, South Dublin, D16 A0P0 Short commencement notice
    21 Aug 2025CN0132272SDSD25B/0261W494 m away
  • 17 Ballyroan Heights, Templeogue, South Dublin, D16 T1H2 Short commencement notice
    30 Jun 2025CN0129992SDSD25B/0082W327 m away

One notice can cover many buildings — count notices, never building rows, or a single multi-unit scheme reads as a trend (T11).

Source: bcms · fetched 12 Sept 2026, 23:34
SourceLicenceFetchedLink
bcmsCC-BY-4.012 Sept 2026, 23:34open

Sales 29 in 36 months within 500 m

€724,000
median price
€5,862/m²
median €/m²
29
sales
28
rooftop-geocoded
16
with listing detail
1
new builds

€508,000€975,000, 16 Feb 2024 to 18 Dec 2025.

AddressSoldPriceAskingTypeBeds€/m²BERDist.
57 KNOCKCULLEN DRIVE, KNOCKLYON, RATHFARNHAM18 Dec 2025€820,000€700,000Detached41336,165C398 m
54 ASHTON AVE, KNOCKLYON, DUBLIN 1617 Oct 2025€850,000€795,000Detached41455,862C129 m
7 BALLYROAN CRESCENT, DUBLIN 16, DUBLIN3 Oct 2025€800,000€725,000Semi-D41455,517G409 m
8 KNOCKLYON DR, TEMPLEOGUE, DUBLIN 1626 Sept 2025€755,000€545,000Semi-D31017,475D2348 m
95 BALLYROAN RD, TEMPLEOGUE, DUBLIN 1610 Sept 2025€675,000€650,000Semi-D31006,750E1394 m
68 DARGLE WOOD, KNOCKLYON, DUBLIN 1626 Aug 2025€645,000€595,000Semi-D41066,085C3441 m
60 KNOCKCULLEN DR, KNOCKLYON, DUBLIN 1631 Jul 2025€740,000€715,000Detached31395,324B3121 m
137 BALLYROAN RD, TEMPLEOGUE, DUBLIN 1628 Jul 2025€690,000€650,000Semi-D31106,273D2464 m
11 CREMORNE, TEMPLEOGUE, DUBLIN 1617 Jun 2025€811,000€775,000Detached4148.35,469F492 m
4 KNOCKLYON COTTAGES, KNOCKLYON RD, DUBLIN 1612 Jun 2025€554,000€545,000Bungalow3777,195G270 m

PPR addresses are geocoded, not surveyed — a sale's position is as good as its address match (`rooftop_n` says how many are address-accurate). Beds, floor area, BER and asking price come from the matched daft.ie advertisement, not from the Register, and only where a match was found (`enriched_n`).

Sources: cara_listings, ppr · fetched 11 Sept 2026, 20:14
SourceLicenceFetchedLink
cara_listingsThird-party advertisement data captured by Cara from daft.ie. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (licensed PSP name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers and all vendor/buyer identities are dropped.11 Sept 2026, 20:14open
pprPSI — PSRA re-use terms (psr.ie/re-use-of-public-sector-information). Free re-use in any format provided the source and PSRA copyright are acknowledged, the data is reproduced accurately and not used misleadingly, and it is NOT used 'for the principal purpose of advertising or promoting a particular product or service'. Attribution: 'Contains PSRA Residential Property Price Register data, © Property Services Regulatory Authority.'12 Sept 2026, 20:31open

Consultations 3 matched by place

Source: consult · fetched 12 Sept 2026, 02:04
SourceLicenceFetchedLink
consultpublic12 Sept 2026, 02:04open

Council items 10 in 24 months

Source: moderngov · fetched 12 Sept 2026, 21:48
SourceLicenceFetchedLink
moderngovpublic12 Sept 2026, 21:48open

Capacity and public land

No publishable utility-capacity record within the radius. 9 records from Esb substation withheld: source licence forbids redistribution; see the operator's own register.

Public land (LDA register of relevant lands)

  • Dublin City CouncilDublin city and suburbs
    3.1 hafolio DN6069F104 m awayas of 1 Apr 2023
  • South Dublin County CouncilDublin city and suburbs
    0.75 hafolio DN109017F209 m awayas of 1 Apr 2023
  • South Dublin County CouncilDublin city and suburbs
    0.26 hafolio DN121434F245 m awayas of 1 Apr 2023
  • Dublin City CouncilDublin city and suburbs
    0.3 hafolio DN93595F302 m awayas of 1 Apr 2023
  • Dublin City CouncilDublin city and suburbs
    0.11 hafolio DN8319F302 m awayas of 1 Apr 2023
  • Dublin City CouncilDublin city and suburbs
    1.4 hafolio DN8319F338 m awayas of 1 Apr 2023
  • South Dublin County CouncilDublin city and suburbs
    0.35 hafolio DN193486F378 m awayas of 1 Apr 2023
  • South Dublin County CouncilDublin city and suburbs
    0.1 hafolio DN193486F394 m awayas of 1 Apr 2023
Sources: esbn, lda_lands · fetched 11 Sept 2026, 16:42
SourceLicenceFetchedLink
esbnall-rights-reserved (esbnetworks.ie disclaimer: personal/non-commercial, no modification or republication without written ESB permission) — permission NOT sought · not redistributable — shown as a flag only11 Sept 2026, 16:42open
lda_landsCC-BY-4.011 Sept 2026, 16:43open

Schools and public transport within 1.0 km

Schools

  • Sancta Maria College
    postprimary577 pupilsCATHOLIC324 m
  • Saplings Special School
    primary30 pupilsMulti Denominational430 m
  • ST PATRICK GNS
    primary472 pupilsCatholic482 m
  • Coláiste Éanna
    postprimary618 pupilsCATHOLIC564 m
  • SCOIL COLMCILLE NAOFA
    primary721 pupilsCatholic668 m
  • ST COLMCILLE SENIOR N S
    primary744 pupilsCatholic668 m
  • RATHFARNHAM PARISH N S
    primary215 pupilsChurch Of Ireland778 m
  • BALLYROAN B N S
    primary375 pupilsCatholic862 m

Stops 47 · routes 15, 15B, 15D, 161, 49n, 65B, 74, 750, F1, S6, S8, UM08

  • Knockcullen Rise
    15249 m
  • Knockcullen Rise
    15251 m
  • Knockaire
    15316 m
  • Coolamber Court
    15349 m
  • Coolamber Court
    15424 m
  • Knockaire
    15443 m
  • Ballyboden St Endas
    S8590 m
  • Templeroan Estate
    15B, S8596 m
Sources: gtfs, schools · fetched 11 Sept 2026, 19:16
SourceLicenceFetchedLink
gtfsCC-BY-4.011 Sept 2026, 19:16open
schoolsCC-BY-4.011 Sept 2026, 16:41open

Sources used in this report

SectionSourceLicenceFetched
LocationplacesCC-BY-4.011 Sept 2026, 21:28
ParcelparcelsCC-BY-4.011 Sept 2026, 19:06
ZoningzoningCC-BY-4.012 Sept 2026, 02:04
Constraintsconstraintsmixed — CC-BY-4.0 except OPW flood (CC-BY-NC-ND-4.0, publishable=false)11 Sept 2026, 19:11
Constraintsconstraints.niahCC-BY-4.011 Sept 2026, 19:11
Constraintsconstraints.radonCC-BY-4.011 Sept 2026, 19:11
RzltrzltCC-BY-4.012 Sept 2026, 00:23
PlanningnpadCC-BY-4.012 Sept 2026, 20:38
AppealsacpCC-BY-4.012 Sept 2026, 00:05
CommencementsbcmsCC-BY-4.012 Sept 2026, 23:34
Salescara_listingsThird-party advertisement data captured by Cara from daft.ie. Not open data: internal analysis only, no redistribution of listing content. Business-contact details (licensed PSP name and branch) are retained per Cara DECISIONS 2026-08-19; agent phone numbers and all vendor/buyer identities are dropped.11 Sept 2026, 20:14
SalespprPSI — PSRA re-use terms (psr.ie/re-use-of-public-sector-information). Free re-use in any format provided the source and PSRA copyright are acknowledged, the data is reproduced accurately and not used misleadingly, and it is NOT used 'for the principal purpose of advertising or promoting a particular product or service'. Attribution: 'Contains PSRA Residential Property Price Register data, © Property Services Regulatory Authority.'12 Sept 2026, 20:31
Consultationsconsultpublic12 Sept 2026, 02:04
Council itemsmoderngovpublic12 Sept 2026, 21:48
Capacityesbnall-rights-reserved (esbnetworks.ie disclaimer: personal/non-commercial, no modification or republication without written ESB permission) — permission NOT sought · not redistributable, flag only11 Sept 2026, 16:42
Public landlda_landsCC-BY-4.011 Sept 2026, 16:43
Projectssocial_housingCC-BY-SA-4.011 Sept 2026, 20:13
AmenitiesgtfsCC-BY-4.011 Sept 2026, 19:16
AmenitiesschoolsCC-BY-4.011 Sept 2026, 16:41
DeadlinesacpCC-BY-4.012 Sept 2026, 00:05
Deadlinesconsultpublic12 Sept 2026, 02:04
Deadlinesmoderngovpublic12 Sept 2026, 21:48
DeadlinesnpadCC-BY-4.012 Sept 2026, 20:38
DeadlinesrzltCC-BY-4.012 Sept 2026, 00:23

Generated 13 Sept 2026, 16:27 from the Planning Register store. Nothing on this page was fetched live: every figure was already in the store with the fetch time shown. Deadlines are derived from published receipt and decision dates under the Planning and Development Act 2000; confirm with the planning authority before relying on them.