HM Land Registry records the plot of land for 21, Seafield Road, Harwich as measuring 444 m².

That makes it the 25th largest plot in the postcode, where 40 of the 48 other houses have recorded plot data.

21, Seafield Road, Harwich has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Mar 2013.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 21, Seafield Road, Harwich completed on 6th May 2022 at £365,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have dropped by 21.5% over the period since May 2022.

• Sold May 2022£365,000

Since 2011 81 properties similar to 21, Seafield Road, Harwich have sold within a radius of 700 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 9th January 2026, was 12, Kreswell Grove, Harwich, CO12 3SZ, a freehold house which sold for £390,000.

Read more about house prices in CO12.

• Sold Jan 2026£390,000 | 3 Bed House12, Kreswell Grove, Harwich, CO12 3SZ12, Kreswell Grove, Harwich, CO12 3SZ
• Sold Oct 2025£318,000 | 3 Bed House16, Kreswell Grove, Harwich, CO12 3SZ16, Kreswell Grove, Harwich, CO12 3SZ
• Sold Sep 2025£350,000 | 3 Bed House10, The Drive, Harwich, CO12 3SU10, The Drive, Harwich, CO12 3SU
• Sold Aug 2025£400,000 | 3 Bed House38, Seafield Road, Harwich, CO12 4EH38, Seafield Road, Harwich, CO12 4EH
• Sold Apr 2024£277,500 | 3 Bed House19, Richmond Crescent, Harwich, CO12 3TP19, Richmond Crescent, Harwich, CO12 3TP
• Sold Mar 2024£345,000 | 3 Bed House2, Fronks Avenue, Harwich, CO12 3RX2, Fronks Avenue, Harwich, CO12 3RX
• Sold Oct 2022£420,000 | 3 Bed House22, Seafield Road, Harwich, CO12 4EH22, Seafield Road, Harwich, CO12 4EH
• Sold Oct 2022£400,000 | 3 Bed House15, Seafield Road, Harwich, CO12 4EH15, Seafield Road, Harwich, CO12 4EH
• Sold Jul 2022£350,000 | 3 Bed House14, Richmond Crescent, Harwich, CO12 3TP14, Richmond Crescent, Harwich, CO12 3TP
• Sold Mar 2021£330,000 | 3 Bed House18, Seafield Road, Harwich, CO12 4EH18, Seafield Road, Harwich, CO12 4EH
• Sold Dec 2020£385,000 | 3 Bed House37, The Drive, Harwich, CO12 3SU37, The Drive, Harwich, CO12 3SU
• Sold Feb 2020£320,000 | 3 Bed House34, Kreswell Grove, Harwich, CO12 3SZ34, Kreswell Grove, Harwich, CO12 3SZ
• Sold Sep 2019£248,000 | 3 Bed House39, Gordon Road, Harwich, CO12 3TL39, Gordon Road, Harwich, CO12 3TL
• Sold Apr 2019£372,500 | 3 Bed House7, The Drive, Harwich, CO12 3SU7, The Drive, Harwich, CO12 3SU
• Sold May 2018£300,000 | 3 Bed House44, The Drive, Harwich, CO12 3SU44, The Drive, Harwich, CO12 3SU
• Sold Jan 2017£270,000 | 3 Bed House36, The Drive, Harwich, CO12 3SU36, The Drive, Harwich, CO12 3SU
• Sold Dec 2016£185,000 | 3 Bed House17, Seafield Road, Harwich, CO12 4EH17, Seafield Road, Harwich, CO12 4EH
• Sold Nov 2015£247,000 | 3 Bed House23, The Drive, Harwich, CO12 3SU23, The Drive, Harwich, CO12 3SU
• Sold Jun 2014£188,000 | 3 Bed House20, Seafield Road, Harwich, CO12 4EH20, Seafield Road, Harwich, CO12 4EH
• Sold Jun 2011£217,500 | 3 Bed House29, Seafield Road, Harwich, CO12 4EH29, Seafield Road, Harwich, CO12 4EH

Of the 48 addresses on Seafield Road, Harwich, CO12, 21, Seafield Road, Harwich comes out as the 46th largest and the 45th most expensive in our analysis of the public data.

It is also £102k more expensive than the average property across the CO12 district.

• St Joseph's Catholic Primary School

  100 m away
• The Mayflower Primary School

  700 m away
• All Saints' Church of England Voluntary Aided Primary School, Dovercourt

  1.0 km away

• Harwich and Dovercourt High School

  600 m away
• Felixstowe School

  6.4 km away
• Lift Tendring

  9.8 km away

• Dovercourt

  |

  1.2 km away
• Harwich Town

  |

  1.9 km away
• Harwich International

  |

  2.2 km away

The flood risk here is rated Very Low, based on Environment Agency data.