5, Williamsburg Avenue, Harwich has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 18 Mar 2021.

The property is not connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 292 sales of comparable properties within 740 metres of 5, Williamsburg Avenue, Harwich since 2011.

Most recently, 57, Williamsburg Avenue, Harwich, CO12 4FF, a freehold house, sold at £240,000 on the 21st November 2025.

Read more about house prices in CO12.

• Sold Nov 2025£240,000 | 3 Bed House57, Williamsburg Avenue, Harwich, CO12 4FF57, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Oct 2025£257,000 | 3 Bed House47, Williamsburg Avenue, Harwich, CO12 4FF47, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Aug 2025£250,000 | 3 Bed House86, Williamsburg Avenue, Harwich, CO12 4FE86, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2025£227,500 | 3 Bed House78, Williamsburg Avenue, Harwich, CO12 4FE78, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2025£241,500 | 3 Bed House22, Williamsburg Avenue, Harwich, CO12 4FE22, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Feb 2025£245,000 | 3 Bed House56, Williamsburg Avenue, Harwich, CO12 4FE56, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Oct 2022£275,000 | 3 Bed House32, Williamsburg Avenue, Harwich, CO12 4FE32, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2022£245,000 | 3 Bed House42, Williamsburg Avenue, Harwich, CO12 4FE42, Williamsburg Avenue, Harwich, CO12 4FE
• Sold May 2022£247,000 | 3 Bed House53, Williamsburg Avenue, Harwich, CO12 4FF53, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Sep 2021£235,000 | 3 Bed House74, Williamsburg Avenue, Harwich, CO12 4FE74, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Aug 2021£207,500 | 3 Bed House76, Williamsburg Avenue, Harwich, CO12 4FE76, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Apr 2021£207,500 | 3 Bed House106, Williamsburg Avenue, Harwich, CO12 4FE106, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Mar 2021£222,000 | 3 Bed House8, Jamestown Close, Harwich, CO12 4FG8, Jamestown Close, Harwich, CO12 4FG
• Sold Nov 2020£200,000 | 3 Bed House43, Williamsburg Avenue, Harwich, CO12 4FF43, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Jun 2020£215,000 | 3 Bed House92, Williamsburg Avenue, Harwich, CO12 4FE92, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2020£203,500 | 3 Bed House2, Jamestown Close, Harwich, CO12 4FG2, Jamestown Close, Harwich, CO12 4FG
• Sold Mar 2020£193,500 | 3 Bed House24, Williamsburg Avenue, Harwich, CO12 4FE24, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Dec 2019£217,000 | 3 Bed House60, Williamsburg Avenue, Harwich, CO12 4FE60, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Sep 2019£225,000 | 3 Bed House59, Williamsburg Avenue, Harwich, CO12 4FF59, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Dec 2011£125,000 | 3 Bed House36, Williamsburg Avenue, Harwich, CO12 4FE36, Williamsburg Avenue, Harwich, CO12 4FE

Our analysis of the public data ranks 5, Williamsburg Avenue, Harwich as the 30th largest and the 17th most expensive of the 102 addresses on Williamsburg Avenue, Harwich, CO12.

Against the CO12 postcode district average, it is £14k more expensive than the typical property.

• The Mayflower Primary School

  500 m away
• Spring Meadow Primary School & Nursery

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

  800 m away

• Harwich and Dovercourt High School

  1.1 km away
• Felixstowe School

  6.0 km away
• Holbrook Academy

  9.2 km away

• Harwich International

  |

  1.1 km away
• Dovercourt

  |

  1.1 km away
• Harwich Town

  |

  1.7 km away

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