House extensions in Anglesey

Anglesey received 91 householder applications in the last 12 months. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

64 last 90 days
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27 last 30 days
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16 last 14 days

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Showing 50 of 64 applications
HHP/2026/108 8 Jul 2026 Valid

Rhoslyn, Rhosmeirch

Cais llawn ar gyfer codi ports newydd yn / Full application for erection of a porch at

Householder planning permission Anglesey 8 Jul 2026
FPL/2025/254 8 Jul 2026 Valid

Hawddmor, Llaneilian

Cais llawn ar gyfer codi modurdy ar wahân arfaethedig, ynghyd â chadw estyniad ôl-weithredol i'r cwrtil preswyl presennol, mynedfa newydd i gerbydau a...

Full Planning Permission Anglesey 8 Jul 2026
HHP/2026/67 1 Jul 2026 Valid

27 Ger Y Môr / Whispering Sands, Rhosneigr

Cais llawn ar gyfer addasu ag ehangu yn /Full application for alterations and extensions at

Householder planning permission Anglesey 1 Jul 2026
HHP/2026/48 1 Jul 2026 Closed

Talgwyn, Pentraeth.

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 1 Jul 2026
FPL/2026/142 1 Jul 2026 Under Review

7 Y Fali Canolfan Siopa, Station Road, Y Fali / 7 Valley Shopping Centre, Station Road, Valley

Cais llawn ar gyfer newid defnydd y fflat llawr cyntaf i uned manwerthu (Dosbarth Defnydd A1) neu swyddfa (Dosbarth Defnydd B1) yn ogystal â dymchwel,...

Full Planning Permission Anglesey 1 Jul 2026
FPL/2026/101 1 Jul 2026 Valid

Pennant, Amlwch

Cais llawn ar gyfer newid defnydd a ehangu'r ysgubor bresennol i fod yn lleoliad priodas a digwyddiadau ynghyd a gosod system trin carthffosiaeth a gw...

Full Planning Permission Anglesey 1 Jul 2026
FPL/2026/78 1 Jul 2026 Valid

Flat 1, Harbour Lights, Bridge Street, Cemaes

Cais llawn ar gyfer addasu yr to presennol, ychwanegu pedimentau, estynnu yr balconi presennol a gosod paneli solar yn / Full application for alterati...

Full Planning Permission Anglesey 1 Jul 2026
HHP/2026/102 1 Jul 2026 Valid

Brynaddfed, Bodedern

Cais llawn ar gyfer codi balconi a garej ar wahan yn / Full application for the erection of a balcony and a detached garage at

Householder planning permission Anglesey 1 Jul 2026
FPL/2026/145 1 Jul 2026 Under Review

Drws y Coed, Ffordd Biwmares, Glyn Garth / Drws y Coed, Beaumaris Road, Glyn Garth

Cais llawn ar gyfer creu mynedfa gerbydau newydd a man parcio, wal terfyn a gwaith cysylltiedig ar dir gyferbyn / Full application for the creation o...

Full Planning Permission Anglesey 1 Jul 2026
HHP/2026/107 1 Jul 2026 Valid

16 Mill Road, Caergybi / 16 Mill Road, Holyhead

Cais llawn ar gyfer addasu ac ehangu yn cynnwys trosi llofft yn / Full application for alterations and extensions including loft conversion at

Householder planning permission Anglesey 1 Jul 2026
HHP/2026/106 1 Jul 2026 Valid

31 Sisial Y Môr, Rhosneigr

Cais llawn ar gyfer addasu ac ehangu ynghyd â gwaith tirlunio cysylltiedig yn / Full application for alterations and extensions together with associat...

Householder planning permission Anglesey 1 Jul 2026
HHP/2026/105 1 Jul 2026 Valid

Cysgod y Graig, Rhydwyn

Cais llawn ar gyfer addasu ag ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 1 Jul 2026
SCR/2026/29 1 Jul 2026 Under Review

Drws y Coed, Ffordd Biwmares, Glyn Garth / Drws y Coed, Beaumaris Road, Glyn Garth

Barn Sgrinio ar gyfer creu mynedfa gerbydau newydd a man parcio ar dir gyferbyn / Screening opinion for the creation of a new vehicular access and pa...

Screening Opinion Anglesey 1 Jul 2026
MAO/2026/24 1 Jul 2026 Closed

Sea Breeze, Lon Penrallt, Bae Trearddur / Sea Breeze, Penrallt Road, Trearddur Bay

Mân newidiadau i gynllun a gymeradwywyd yn flaenorol o dan ganiatâd cynllunio HHP/2026/36 (addasu ac ehangu yn cynnwys dymchwel y garej/anecs presenno...

PLANNING PORTAL - Non-Material Amendment Anglesey 1 Jul 2026
HHP/2026/104 29 Jun 2026 Valid

Eryri, 47 Cae Mair, Biwmares/Beaumaris

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 29 Jun 2026
HHP/2026/84 28 Jun 2026 Valid

10 Sisal y Môr, Rhosneigr

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 28 Jun 2026
HHP/2026/78 25 Jun 2026 Valid

Fairwinds, Lon Las / Mount Street, Porthaethwy / Menai Bridge.

Cais llawn ar gyfer addasu ac ehangu gan gynnwys balconi a chodi uchder y to presennol yn / Full application for alterations and extensions including ...

Householder planning permission Anglesey 25 Jun 2026
FPL/2026/146 25 Jun 2026 Under Review

Caffi Banc, 36 High Street, Cemaes

Cais ôl-weithredol ar gyfer adeiladu dec yn / Retrospective application for the construction of decking at

Full Planning Permission Anglesey 25 Jun 2026
HHP/2026/103 25 Jun 2026 Valid

35A Bro Ednyfed, Llangefni

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 25 Jun 2026
FPL/2026/148 22 Jun 2026 Under Review

Modurdy Bryn Glas, Bryngwran / Bryn Glas Garage, Bryngwran

Cais llawn ar gyfer codi estyniad i'r modurdy bresennol yn / Full application for an extension to the existing garage at

Full Planning Permission Anglesey 22 Jun 2026
HHP/2026/73 20 Jun 2026 Closed

Tyddyn Uchaf, Llanddaniel

Cais llawn i gadw estyniad i'r cwrtil a chodi ystafell haul ar wahân yn / Full application for the retention of extension to curtilage and the erectio...

Householder planning permission Anglesey 20 Jun 2026
MAO/2026/21 20 Jun 2026 Closed

Madyn Farm, Amlwch

Mân newidiadau i gynllun sydd wedi ei ganiatáu yn flaenorol o dan caniatâd cynllunio 11C304A (codi 31 annedd ynghyd ag addasu'r fynedfa bresennol) er ...

Minor Amendment Any Other Anglesey 20 Jun 2026
HHP/2026/93 20 Jun 2026 Under Review

Glyn Ewryd, Rhosgoch.

Cais llawn i drosi rhan o'r adeilad allanol presennol i fod yn anecs i'w ddefnyddio'n ategol i'r prif annedd yn / Full application to convert part of ...

Householder planning permission Anglesey 20 Jun 2026
HHP/2026/101 20 Jun 2026 Under Review

Bron Menai, Dwyran

Cais ol-weithredol ar gyfer codi adeilad allanol i'w ddefnyddio'n ategol i'r prif annedd yn / Retrospective application for the erection of an outbuil...

Householder planning permission Anglesey 20 Jun 2026
FPL/2026/132 19 Jun 2026 Under Review

5 Ffordd yr Coleg, Porthaethwy / 5 Askew Street, Menai Bridge

Cais llawn ar gyfer dymchwel, addasu ac ehangu yn / Full application for demolition, extensions and alterations at

Full Planning Permission Anglesey 19 Jun 2026
HHP/2026/65 18 Jun 2026 Valid

Tyn Y Parc, Rhydwyn

Cais llawn ar gyfer addasu ag ehangu ynghyd â chreu man parcio newydd yn / Full application for the alterations and extensions, together with the form...

Householder planning permission Anglesey 18 Jun 2026
FPL/2026/143 15 Jun 2026 Valid

Tyn Fynnon, Dwyran

Cais llawn ar gyfer newid defnydd adeilad allannol presenol i fod yn anecs ynghyd a'i addasu ac ehangu yn / Full application for the conversion of an ...

Full Planning Permission Anglesey 15 Jun 2026
HHP/2026/92 11 Jun 2026 Valid

Eirianfa, 6 Ffordd Nant, Llangefni

Cais llawn ar gyfer dymchwel rhan or annedd presennol ynghyd a addasu ag ehangu yn/ Full application for demolition of part of existing dwelling toget...

Householder planning permission Anglesey 11 Jun 2026
HHP/2026/94 11 Jun 2026 Valid

Bryn Erin, Talwrn

Cais llawn ar gyfer codi garej a storfa yn / Full application for the erection of a garage and store at

Householder planning permission Anglesey 11 Jun 2026
FPL/2026/127 8 Jun 2026 Valid

Gorwel, Ffordd Caergybi, Pentre Berw / Gorwel, Holyhead Road, Pentre Berw

Cais llawn am estyniad i'r cwrtil ynghyd a chodi garej arwahan yn / Full application for the extension to the curtilage together with the erection of ...

Full Planning Permission Anglesey 8 Jun 2026
HHP/2026/96 8 Jun 2026 Valid

Ty Ni, Lôn Crecrist, Bae Trearddur / Ty Ni, Lôn Crecrist, Trearddur Bay

Cais llawn ar gyfer addasu ac ehangu, creu mynedfa newydd a chodi garej ddwbl yn / Full application for alterations and extensions, creation of a new ...

Householder planning permission Anglesey 8 Jun 2026
HHP/2026/99 8 Jun 2026 Pending

Bryn Afon, Llanfaethlu

Cais llawn ar gyfer addasu ag ehangu ynghyd â throsi adeilad allanol presennol yn annecs yn / Full application for alterations and extensions together...

Householder planning permission Anglesey 8 Jun 2026
HHP/2026/82 5 Jun 2026 Valid

Roca, Lôn Penrallt, Bae Trearddur / Roca, Penrallt Road, Trearddur Bay

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 5 Jun 2026
HHP/2026/90 5 Jun 2026 Valid

Caer Wylan, Rhoscolyn

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 5 Jun 2026
HHP/2026/91 5 Jun 2026 Valid

41 Bay View Road, Benllech

Cais llawn ar gyfer teras/balconi arfaethedig gyda storfa islawr o dano yn / Full application for proposed terrace/balcony with basement storage under...

Householder planning permission Anglesey 5 Jun 2026
HHP/2026/87 4 Jun 2026 Valid

108 Gaerwen Uchaf, Gaerwen

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 4 Jun 2026
HHP/2025/196 2 Jun 2026 Valid

Ffrwd Onnen, Llangristiolus, Bodorgan.

Cais llawn am estyniad i'r cwrtil ynghyd â chodi garej yn / Full application for an extension to the curtilage together with the erection of a garage ...

Householder planning permission Anglesey 2 Jun 2026
HHP/2026/54 2 Jun 2026 Valid

Pen yr Allt Newydd, Bryngwran.

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 2 Jun 2026
FPL/2026/113 26 May 2026 Valid

Fadog, Llanfaethlu

Cais llawn ar gyfer codi estyniad i’r sied amaethyddol presennol yn / Full application for an extension to the existing agricultural shed at

Full Planning Permission Anglesey 26 May 2026
HHP/2026/45 26 May 2026 Valid

4, Tyddyn Waen Terrace, Llangoed

Cais llawn ar gyfer dymchwel darn o'r brif annedd a'r modurdy presennol ynghyd a addasu ac ehangu a codi modurdy newydd arwahan ynghyd a swyddfa uwchb...

Householder planning permission Anglesey 26 May 2026
HHP/2026/88 26 May 2026 Valid

10 Llanfawr Road, Caergybi / 10 Llanfawr Road, Holyhead

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 26 May 2026
HHP/2026/89 26 May 2026 Valid

Haulfryn, Overstrand Avenue, Rhosneigr

Cais llawn ar gyfer dymchwel, addasu ac ehangu yn / Full application for demolition, alterations and extensions at

Householder planning permission Anglesey 26 May 2026
MAH/2026/8 26 May 2026 Valid

36 Ger y Mor, Rhosneigr / 36 Whispering Sands, Rhosneigr

Mân newidiadau i gynllun a gymeradwywyd yn flaenorol o dan ganiatâd cynllunio HHP/2026/21 er mwyn diwygio dyluniad y dormer yn / Minor amendments to ...

Minor Amendment Householder Anglesey 26 May 2026
MAH/2026/9 26 May 2026 Valid

Caerwyn, Marianglas

Mân newidiadau i gynllun sydd wedi ei ganiatáu yn flaenorol o dan caniatád cynllunio HHP/2025/178 er mwyn gosod ffenestr ychwanegol ar yr ochr yn / Mi...

Minor Amendment Householder Anglesey 26 May 2026
HHP/2026/71 19 May 2026 Valid

1 Maes Meilw, Plas Road, Caergybi / 1 Maes Meilw, Plas Road, Holyhead

Cais llawn ar gyfer addasu ac ehangu yn / Full application for alterations and extensions at

Householder planning permission Anglesey 19 May 2026
FPL/2026/87 12 May 2026 Valid

25 Maes y Mynydd, Caergybi / 25 Maes y Mynydd, Holyhead

Cais llawn ar gyfer creu mynedfa newydd i gerbydau a man parcio yn / Full application for the construction of a new vehicular access and parking area ...

Full Planning Permission Anglesey 12 May 2026
HHP/2026/79 12 May 2026 Valid

Tregarne, Ffordd Caergybi, Llanfairpwll / Tregarne, Holyhead Road, Llanfairpwll

Cais llawn ar gyfer addasu ac ehangu ynghyd â chadw'r gwaith presennol yn / Full application for alterations and extensions together with the retentio...

Householder planning permission Anglesey 12 May 2026
MAO/2026/10 12 May 2026 Valid

Church Bay Inn, Rhydwyn

Mân newidiadau i gynllun sydd wedi ei ganiatáu yn flaenorol o dan caniatád cynllunio FPL/2024/361 er mwyn codi uchder rhan o'r to yn / Minor amendmen...

Minor Amendment Any Other Anglesey 12 May 2026
HHP/2026/1 5 May 2026 Valid

Lleifior, Llanddona, Biwmares/Beaumaris

Cais llawn ar gyfer creu mynedfa newydd i gerbydau ynghyd a chreu man parcio yn / Full application for the construction of a new vehicular access toge...

Householder planning permission Anglesey 5 May 2026
HHP/2026/83 5 May 2026 Valid

Glenroy, Warren Road, Rhosneigr

Cais llawn ar gyfer dymchwel, addasu, ag ehangu, ynghyd â chodi pergola yn / Full application for demolition, alterations, and extensions, together wi...

Householder planning permission Anglesey 5 May 2026
Recency
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1-2 months
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits — taller, larger, in a protected area — needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases (especially with objections) can take longer.
Can I get email alerts for new extensions applications in Anglesey?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Anglesey. You can also narrow the alert to a postcode, street, or drawn area.

We check Anglesey's planning portal daily. New extensions applications appear here within a day of being published.