| 19 Dec 2025 | CLIFF APARTMENTS, FLAT 31, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £195,000 |
| 1 Aug 2024 | PLAS DARIEN, FLAT 7, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £225,000 |
| 19 Jun 2024 | PLAS DARIEN, FLAT 3, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £232,500 |
| 28 Feb 2024 | PORTH EWYN, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £150,000 |
| 1 Feb 2024 | PLAS DARIEN, FLAT 38, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £114,000 |
| 18 Aug 2023 | PLAS DARIEN, FLAT 27, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £180,000 |
| 14 Jul 2023 | PLAS DARIEN, FLAT 25, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £173,000 |
| 31 May 2023 | PLAS DARIEN, FLAT 7, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £215,000 |
| 19 May 2023 | PLAS DARIEN, FLAT 23, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £185,000 |
| 14 Apr 2022 | PLAS DARIEN, FLAT 6, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £200,000 |
| 19 Nov 2021 | PLAS DARIEN, FLAT 3, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £200,000 |
| 19 Oct 2021 | BAY VIEW, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £775,000 |
| 16 Aug 2021 | PORTH EWYN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £450,000 |
| 16 Jul 2021 | THE HEADLANDS, FLAT 4, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £200,000 |
| 27 May 2021 | PLAS DARIEN, FLAT 21, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £195,000 |
| 30 Apr 2021 | PLAS DARIAN, FLAT 24, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £152,500 |
| 8 Mar 2021 | PLAS DARIEN, FLAT 36, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £145,000 |
| 12 Feb 2021 | PLAS DARIEN, FLAT 25, LON ISALLT, TREARDDUR BAY | Other | Leasehold | £155,000 |
| 28 Feb 2020 | FRON TOWYN, THE COTTAGE, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £167,500 |
| 5 Sep 2019 | PLAS DARIEN, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £160,000 |
| 28 Jun 2019 | RED SAILS 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £249,950 |
| 19 Dec 2018 | PLAS DARIEN, FLAT 25, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £84,500 |
| 10 Aug 2018 | PLAS DARIEN, FLAT 28, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £117,500 |
| 2 Mar 2018 | PLAS DARIEN, FLAT 8, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £155,000 |
| 31 Jan 2018 | CHARAY, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £320,000 |
| 31 Jan 2018 | PLAS DARIAN, FLAT 24, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £80,000 |
| 24 Jan 2018 | PLAS DARIEN, FLAT 2, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £92,000 |
| 13 Oct 2017 | CARTREF, LON ISALLT, TREARDDUR BAY | Other | Freehold | £367,500 |
| 8 Sep 2017 | PLAS DARIEN, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £124,000 |
| 2 Jun 2017 | WYNEDDA, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £325,000 |
| 15 Feb 2017 | PLAS DARIEN, FLAT 5, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £119,000 |
| 27 Jan 2017 | ISALLT FAWR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £427,100 |
| 13 Dec 2016 | BAY VIEW, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £400,000 |
| 30 Sep 2016 | MORLAIS, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £650,000 |
| 26 Aug 2016 | MOSS O'LEE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £375,000 |
| 29 Jul 2016 | FRON TOWYN, THE COTTAGE, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £125,000 |
| 29 Jul 2016 | PLAS DARIEN, FLAT 4, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £118,000 |
| 27 Jun 2016 | CLIFF APARTMENTS, FLAT 31, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £130,000 |
| 30 Mar 2016 | THE OLD COTTAGE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £325,000 |
| 17 Mar 2016 | CARTREF, LON ISALLT, TREARDDUR BAY | Other | Freehold | £175,000 |
| 13 Aug 2015 | PLAS DARIEN, FLAT 23, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £135,000 |
| 13 Nov 2014 | RED SAILS 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £199,950 |
| 23 Oct 2014 | RED SAILS 2, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £203,000 |
| 10 Oct 2014 | FRON TOWYN, 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £125,000 |
| 2 Oct 2014 | RED SAILS, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £249,950 |
| 12 Aug 2014 | DRUMMOND, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £442,000 |
| 14 Jul 2014 | PORTH YR AFON, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £412,000 |
| 27 May 2014 | GWYNFA, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £160,000 |
| 19 May 2014 | TRITONS REACH, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £370,000 |
| 20 Aug 2013 | MONTCALM, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £215,000 |
| 16 Aug 2013 | GWYNFA, FLAT 3, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £195,000 |
| 24 May 2013 | NYTH Y WYLAN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £240,000 |
| 14 Dec 2012 | PERIWINKLE, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £218,000 |
| 11 Aug 2011 | ISALLT FAWR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £300,000 |
| 14 Jun 2011 | MIN Y MOR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £265,000 |
| 19 May 2011 | THE HEADLANDS, FLAT 3, LON ISALLT, TREARDDUR BAY | Flat | Freehold | £140,000 |
| 20 Nov 2009 | PLAS DARIEN, FLAT 21, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £220,000 |
| 28 Apr 2009 | ROCKSIDE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £600,000 |
| 8 Jul 2008 | THE OLD COTTAGE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £340,000 |
| 30 Jan 2008 | PLAS DARIEN, FLAT 23, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £140,000 |
| 14 Jan 2008 | PLAS DARIEN, FLAT 6, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £162,500 |
| 30 Aug 2007 | ISALLT FAWR COTTAGE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £339,950 |
| 24 Jul 2007 | PENDORLAN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £450,000 |
| 8 Jun 2007 | PLAS DARIEN, FLAT 7, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £149,950 |
| 8 Jun 2007 | RED SAILS, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £410,000 |
| 23 Feb 2007 | DARIEN BACH, LON ISALLT, TREARDDUR BAY | Terraced | Freehold | £172,500 |
| 15 Nov 2006 | HAFOD HELI, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £295,000 |
| 25 Aug 2006 | PLAS DARIAN, FLAT 24, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £99,950 |
| 19 Jun 2006 | PLAS DARIEN, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £154,000 |
| 2 Jun 2006 | PLAS DARIEN, FLAT 27, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £137,500 |
| 13 Jan 2006 | GWELFOR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £305,000 |
| 27 Jul 2005 | PLAS DARIEN, FLAT 26, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £137,500 |
| 24 Dec 2004 | PLAS DARIEN, FLAT 4, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £130,000 |
| 24 Nov 2004 | PLAS DARIEN, FLAT 6, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £150,000 |
| 13 Aug 2004 | PLAS DARIEN, FLAT 37, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £129,950 |
| 7 Apr 2004 | MOSS O'LEE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £100,000 |
| 14 Nov 2003 | PENDORLAN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £250,000 |
| 30 Sep 2003 | GLAN ABER, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £176,000 |
| 30 May 2003 | DRUMMOND, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £262,500 |
| 16 May 2003 | GWYNFA, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £110,000 |
| 2 Dec 2002 | NYTH Y WYLAN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £150,000 |
| 21 Oct 2002 | ANGORFA, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £130,000 |
| 30 Aug 2002 | GLASFOR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £60,000 |
| 1 Jul 2002 | GORLAN, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £80,000 |
| 22 Mar 2002 | HAFOD HELI, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £133,000 |
| 30 May 2001 | ISALLT FAWR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £171,500 |
| 4 Aug 2000 | CHARAY, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £130,000 |
| 20 Aug 1999 | CHARAY, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £67,000 |
| 16 Jun 1999 | THE HEADLANDS, FLAT 4, LON ISALLT, TREARDDUR BAY | Flat | Freehold | £32,000 |
| 12 Feb 1998 | DELAMERE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £68,700 |
| 8 Dec 1997 | PERIWINKLE, LON ISALLT, TREARDDUR BAY | Semi-Detached | Freehold | £64,950 |
| 25 Nov 1997 | HAFOD HELI, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £76,000 |
| 24 Nov 1997 | WYNEDDA, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £86,500 |
| 18 Sep 1997 | THE OLD COTTAGE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £25,000 |
| 31 Jul 1997 | THE HEADLANDS, FLAT 1, LON ISALLT, TREARDDUR BAY | Flat | Leasehold | £41,500 |
| 18 Apr 1997 | SANDCROFT, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £98,000 |
| 7 Mar 1997 | ANGORFA, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £50,000 |
| 27 Dec 1996 | GLAN Y MOR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £48,200 |
| 18 Oct 1996 | MORYN, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £105,000 |
| 20 Sep 1996 | PORTH YR AFON, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £105,000 |
| 19 Jul 1996 | DELAMERE COTTAGE, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £72,500 |
| 23 Apr 1996 | WHITE HORSES, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £145,000 |
| 29 Sep 1995 | ISALLT FAWR, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £75,000 |
| 28 Apr 1995 | DARIEN BACH, LON ISALLT, TREARDDUR BAY | Terraced | Freehold | £30,000 |
| 23 Jan 1995 | WYNEDDA, LON ISALLT, TREARDDUR BAY | Detached | Freehold | £65,000 |