12A, Castlegate Street, Harwich has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 Aug 2017.

The property is connected to mains gas and has some double glazing. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 23 sales of comparable properties within 1.3 kilometres of 12A, Castlegate Street, Harwich since 2010.

Most recently, 5, Hordle Place, Harwich, CO12 3PY, a freehold house, sold at £107,500 on the 13th January 2026.

Read more about house prices in CO12.

• Sold Jan 2026£107,500 | 2 Bed House5, Hordle Place, Harwich, CO12 3PY5, Hordle Place, Harwich, CO12 3PY
• Sold Nov 2025£133,500 | 2 Bed House3, Hordle Street, Harwich, CO12 3PZ3, Hordle Street, Harwich, CO12 3PZ
• Sold Mar 2025£115,000 | 2 Bed House8, East Street, Harwich, CO12 3AS8, East Street, Harwich, CO12 3AS
• Sold Dec 2024£130,000 | 2 Bed House5, Hordle Street, Harwich, CO12 3PZ5, Hordle Street, Harwich, CO12 3PZ
• Sold Jul 2024£125,000 | 2 Bed House4, Albemarle Street, Harwich, CO12 3HW4, Albemarle Street, Harwich, CO12 3HW
• Sold Jun 2022£146,000 | 2 Bed House2 Old Customs Houses, West Street, Harwich, CO12 3DG2 Old Customs Houses, West Street, Harwich, CO12 3DG
• Sold Feb 2022£139,995 | 2 Bed House2 Rose Cottages, Pepys Street, Harwich, CO12 3HQ2 Rose Cottages, Pepys Street, Harwich, CO12 3HQ
• Sold Dec 2021£110,000 | 2 Bed House11, Hordle Street, Harwich, CO12 3PZ11, Hordle Street, Harwich, CO12 3PZ
• Sold Oct 2021£139,000 | 2 Bed House31 Seymour Court, Ingestre Street, Harwich, CO12 3JG31 Seymour Court, Ingestre Street, Harwich, CO12 3JG
• Sold Mar 2021£140,000 | 2 Bed House11, Grafton Road, Harwich, CO12 3BB11, Grafton Road, Harwich, CO12 3BB
• Sold Mar 2021£90,000 | 2 Bed House6, Albemarle Street, Harwich, CO12 3HW6, Albemarle Street, Harwich, CO12 3HW
• Sold Feb 2021£125,000 | 2 Bed House13, Hordle Street, Harwich, CO12 3PZ13, Hordle Street, Harwich, CO12 3PZ
• Sold Jun 2019£110,000 | 2 Bed House9, Hordle Street, Harwich, CO12 3PZ9, Hordle Street, Harwich, CO12 3PZ
• Sold Jun 2018£70,000 | 2 Bed HouseBrewsters Cottage, Pepys Street, Harwich, CO12 3HGBrewsters Cottage, Pepys Street, Harwich, CO12 3HG
• Sold Sep 2017£95,000 | 2 Bed House1, East Street, Harwich, CO12 3AS1, East Street, Harwich, CO12 3AS
• Sold Nov 2016£95,000 | 2 Bed House7, East Street, Harwich, CO12 3AS7, East Street, Harwich, CO12 3AS
• Sold Oct 2015£95,000 | 2 Bed House1, Hordle Street, Harwich, CO12 3PZ1, Hordle Street, Harwich, CO12 3PZ
• Sold Aug 2013£94,000 | 2 Bed House19, Vansittart Street, Harwich, CO12 3HZ19, Vansittart Street, Harwich, CO12 3HZ
• Sold Jul 2013£100,000 | 2 Bed House13A, Castlegate Street, Harwich, CO12 3HA13A, Castlegate Street, Harwich, CO12 3HA
• Sold Jul 2010£96,500 | 2 Bed House23 Seymour Court, Ingestre Street, Harwich, CO12 3JG23 Seymour Court, Ingestre Street, Harwich, CO12 3JG

Our analysis of the public data ranks 12A, Castlegate Street, Harwich as the 7th largest and the 7th most expensive of the 10 addresses on Castlegate Street, Harwich, CO12.

Against the CO12 postcode district average, it is £115k less expensive than the typical property.

• Harwich Community Primary School and Nursery

  1.0 km away
• The Mayflower Primary School

  1.6 km away
• St Joseph's Catholic Primary School

  2.3 km away

• Harwich and Dovercourt High School

  2.7 km away
• Felixstowe School

  4.2 km away
• Holbrook Academy

  10.0 km away

• Harwich Town

  |

  400 m away
• Dovercourt

  |

  1.1 km away
• Harwich International

  |

  2.2 km away

Environment Agency data suggests this area has a Low risk of flooding.