| 11 Dec 2023 | SIGMA HOUSE, G05, NARROW LANE | Flat | Leasehold | £125,000 |
| 24 Nov 2023 | SIGMA HOUSE, FLAT 101, NARROW LANE | Flat | Leasehold | £121,000 |
| 8 Jul 2022 | SIGMA HOUSE, FLAT 203, NARROW LANE | Flat | Leasehold | £132,000 |
| 24 Jun 2022 | SIGMA HOUSE, FLAT G4, NARROW LANE | Flat | Leasehold | £130,000 |
| 25 Feb 2022 | SIGMA HOUSE, FLAT 302, NARROW LANE | Flat | Leasehold | £120,000 |
| 7 Aug 2019 | SIGMA HOUSE, FLAT 105, NARROW LANE | Flat | Leasehold | £115,000 |
| 19 Jan 2018 | SIGMA HOUSE, G05, NARROW LANE | Flat | Leasehold | £137,000 |
| 9 Aug 2017 | SIGMA HOUSE, FLAT G3, NARROW LANE | Flat | Leasehold | £91,000 |
| 9 Jun 2017 | SIGMA HOUSE, FLAT 204, NARROW LANE | Flat | Leasehold | £120,000 |
| 2 Nov 2016 | SIGMA HOUSE, FLAT 303, NARROW LANE | Flat | Leasehold | £115,000 |
| 2 Sep 2016 | SIGMA HOUSE, FLAT G1, NARROW LANE | Flat | Leasehold | £135,000 |
| 30 Mar 2016 | SIGMA HOUSE, FLAT 202, NARROW LANE | Flat | Leasehold | £125,000 |
| 17 Mar 2016 | SIGMA HOUSE, FLAT G2, NARROW LANE | Flat | Leasehold | £132,000 |
| 30 Oct 2015 | SIGMA HOUSE, FLAT 101, NARROW LANE | Flat | Leasehold | £110,000 |
| 23 Oct 2015 | SIGMA HOUSE, FLAT 201, NARROW LANE | Flat | Leasehold | £107,500 |
| 18 May 2015 | SIGMA HOUSE, FLAT G2, NARROW LANE | Flat | Leasehold | £119,500 |
| 19 Dec 2014 | SIGMA HOUSE, FLAT 301, NARROW LANE | Flat | Leasehold | £106,000 |
| 19 Dec 2014 | SIGMA HOUSE, FLAT 202, NARROW LANE | Flat | Leasehold | £120,000 |
| 27 Jun 2014 | SIGMA HOUSE, FLAT G1, NARROW LANE | Flat | Leasehold | £107,000 |
| 26 Feb 2014 | SIGMA HOUSE, FLAT 302, NARROW LANE | Flat | Leasehold | £95,000 |
| 3 Sep 2013 | SIGMA HOUSE, FLAT G2, NARROW LANE | Flat | Leasehold | £106,000 |
| 20 May 2013 | SIGMA HOUSE, G05, NARROW LANE | Flat | Leasehold | £91,000 |
| 31 Jul 2009 | SIGMA HOUSE, FLAT 301, NARROW LANE | Flat | Leasehold | £87,368 |
| 22 Dec 2008 | SIGMA HOUSE, FLAT G2, NARROW LANE | Flat | Leasehold | £130,000 |
| 22 Dec 2008 | SIGMA HOUSE, FLAT G1, NARROW LANE | Flat | Leasehold | £130,000 |
| 31 Aug 2007 | SIGMA HOUSE, FLAT 201, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £148,284 |
| 2 Jul 2007 | SIGMA HOUSE, FLAT 102, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £151,952 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT G3, NARROW LANE | Flat | Leasehold | £101,495 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 202, NARROW LANE | Flat | Leasehold | £156,700 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 101, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £151,995 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 103, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £140,602 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 203, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £134,995 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 303, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £157,950 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 204, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £145,554 |
| 29 Jun 2007 | SIGMA HOUSE, FLAT 104, NARROW LANE | Flat | Leasehold | £158,995 |
| 28 Jun 2007 | SIGMA HOUSE, 105, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £132,500 |
| 28 Jun 2007 | SIGMA HOUSE, FLAT 302, NARROW LANE | Flat | Leasehold | £162,950 |
| 27 Jun 2007 | SIGMA HOUSE, FLAT G4, NARROW LANE | Flat | Leasehold | £114,700 |
| 25 Jun 2007 | SIGMA HOUSE, FLAT 205, NARROW LANE, NORTHAMPTON | Flat | Leasehold | £155,995 |