The Harbourside Clinic, 4 - 5 Corn Hill, Porthmadog, Gwynedd, LL49 9AT Data via plota.co.uk
C26/0397/44/CR - Listed Building Consent
In Progress
Proposal
Addasiadau menwol / Internal alterations Data via plota.co.uk
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View original council record ↗Last checked
Application progress
✓
Received
2 Jul 2026
✓
Validated
6 Jul 2026
Decision
Target date was 31 Aug 2026
Under consideration
No decision has been issued yet. Plota predicted a decision around 28 Oct 2026; it is now day 114.
Documents 5
Statements & assessments 2
Plans & drawings 2
Application forms 1
Site constraints 7
Grade II listed: Harbourside Clinic and apartments
List entry 85339 · 1 m away · 38 more listed buildings within 150 m (38 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 38 with distances
- 5 m3 Pencei (Cornhill)Grade II
- 10 m2 Pencei (Cornhill)Grade II
- 20 mTy TorontoGrade II
- 25 mCornhill WharfGrade II
- 31 mMadoc Yacht ClubGrade II
- 32 mGrisiau Mawr (steps between Pencei (Cornhill) and Ffordd Garth)Grade II
- 34 m7 Pencei (Cornhill)Grade II
- 40 m8 Pencei (Cornhill)Grade II
- 45 m9 Pencei (Cornhill)Grade II
- 45 mHarbour Side, including attached gate piers and wallGrade II
- 50 mCaffi y Morwr Madog (The Mariner Café) and houseGrade II
- 56 m11 Pencei (Cornhill)Grade II
- 61 m12 Pencei (Cornhill)Grade II
- 63 mCarreg Wen, Marine TerraceGrade II
- 66 m13 Pencei (Cornhill)Grade II
- 71 mMarine TerraceGrade II
- 72 m14 Pencei (Cornhill)Grade II
- 80 m15 Pencei (Cornhill)Grade II
- 80 mWenallt, Marine TerraceGrade II
- 88 mCornhill Cottage, including revetment walls and stepsGrade II
- 88 mAfallon, Marine TerraceGrade II
- 90 mGreaves Wharf and Oakleys WharfGrade II
- 96 mLimekiln Cottage, including revetment walls and stepsGrade II
- 97 mGarthowen, Marine TerraceGrade II
- 97 m19 Pencei (Cornhill)Grade II
- 101 m20 Pencei (Cornhill)Grade II
- 102 mTafarn Pencei Cafe BarGrade II
- 103 m21 Pencei (Cornhill)Grade II
- 105 mAberteg, Marine TerraceGrade II
- 108 mCadw Mei Ce and houseGrade II
- 109 mWharf HouseGrade II
- 114 mAwelforGrade II
- 116 mBelle Vue, including forecourt wall and railingsGrade II
- 119 mShip on LaunchGrade II
- 124 mBelle Vue, including forecourt wall and railingsGrade II
- 131 mRockcliff, including forecourt railings and gateGrade II
- 132 mTregunter, including forecourt railings and gateGrade II
- 138 mTom Parry & CoGrade II
Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
World heritage site: World Heritage Site
Nationally designated heritage. Its significance and setting carry great weight.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Porthmadog conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Special area of conservation 54 m away: Pen Llyn a'r Sarnau / Lleyn Peninsula and the Sarnau
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
SSSI 54 m away: Morfa Harlech
Natural England may need consulting, depending on what is proposed.
Sites of special scientific interest are the best wildlife and geological sites in the country. Development likely to harm one is rarely permitted.
Also on the record
Radon affected area, class 3.
Not affected
No scheduled monument at the site
Checked on 17 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 1
Last sold for £40,000 in April 2002. Flat or maisonette, leasehold.
8 April 2002£40,000
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
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Important details
Decision outlook
Day 114, past the statutory target. 56% of extensions in Gwynedd are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 27 Oct 2026.
Day 11458 days past the 56-day target
26%decided within 8 weeks
94%approved
250decided in the last year
Plota live figures for extensions decided by Gwynedd in the last twelve months, from validation. Gwynedd decision record →
Consultation & key dates
- Comments by
- 2 Aug 2026
- Statutory expiry
- 31 Aug 2026
Historical activity at this location
19 nearby applications on record - archival context, not part of the live application.
Within ~100m
Nearby activity
2025
Approved
Grisiau Mawr, Pencei, , Porthmadog, LL49 9AT
Gosod canllaw yng nghanol y grisiau / Erect railing in middle of stairs
2025
Tafarn Pencei, Pencei Public House, Brig Y Don, 17 - 18 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Gwaith uwchraddio'r ty tafarn drwy codi ffenestr gromen ar y cefn a dau canopi / Refurbis…
2025
Tafarn Pencei, Pencei Public House, Brig Y Don, 17 - 18 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Addasiadau mewnol ac amnewid y ffenestr gromen cefn efo un newydd a gosod canopi / Intern…
2024
Approved
Flat 2, 7 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Diwygiad i'r cais blaenorol C16/1227/44/CR er mwyn amnewid drws i ffenestr ac newid i'r e…
2024
Approved
Flat 2, 7 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Diwygiad ansylweddol i gais C16/1229/44/LL er mwyn amnewid drws i ffenestr ac newid i edr…
2022
Approved
10 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Dymchwel estyniad unllawr to fflat cefn a chodi estyniad newydd deulawr to pits, gyda add…
2022
10 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Dymchwel estyniad to fflat unllawr cefn presennol a chodi estyniad newydd deulawr to pits
2021
Refused
Land At Garth Terrace Garth Road, Porthmadog, LL49 9BG
Adeiladu tŷ annedd unllawr tair ystafell wely Erection of single storey three bedroom dwe…
2021
Approved
10 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Cysylltu nwy ir eiddo / Gas connection to property
2021
Approved
1 Lombard Street, Porthmadog, Gwynedd, LL49 9AP
Newid defnydd cyn swyddfa ar lawr daear ac is lawr yr adeilad i ffurfio rhan o'r uned bre…
2021
Madog Yacht Club Corn Hill, Porthmadog, Gwynedd, LL49 9AY
Gosod pabell dros dro (rhwng ebrill a rhagfyr 2021) ar ochr yr adeilad / Siting of tempor…
2020
Porthmadog Sailing Club Corn Hill, Porthmadog, Gwynedd, LL49 9AY
Gosod ffliw ar gefn yr adeilad / Installation of flue to rear of building.
2020
Approved
6 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
Gosod canllaw ar ochr yr adeilad / Install handrail on side of building.
2017
Approved
Ship on Launch, 3, Lombard Street, PORTHMADOG, LL49 9AP
Codi estyniad unllawr cefn / Erect single storey extension to rear
2017
Approved
Ship on Launch, 3 , Lombard Street, PORTHMADOG, LL49 9AP
Codi estyniad unllawr cefn / Erect single storey extension to rear
2016
Approved
FLAT 2, 7, Cornhill, Porthmadog, LL499AT
Codi estyniad unllawr ar llawr cyntaf ty annedd / Erect single storey extension on first…
2016
Approved
FLAT 2, 7, Cornhill, Porthmadog, LL499AT
Codi estyniad unllawr ar llawr cyntaf ty annedd / Erect single storey extension on first…
2016
Approved
8 Castell Rhes Garth, Garth Road, PORTHMADOG, LL49 9BE
Cais i newid defnydd ar gyfer ty aml-feddianaeth 6 ystafell wely/Application for the chan…
2016
FLAT 2, 7, Corn Hill, Porthmadog, LL499AT
Codi estyniad er creu llawr cyntaf / Erect extension to create first floor
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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The Harbourside Clinic, 4 - 5 Corn Hill, Porthmadog, Gwynedd, LL49 9AT
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The consultation period closed on 2 Aug 2026.