According to data from HM Land Registry, 45, Williamsburg Avenue, Harwich sits on a plot of 370 m².

We have plot size data on 13 out of 38 other houses in the postcode and 45, Williamsburg Avenue, Harwich sits on the largest plot.

45, Williamsburg Avenue, Harwich has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 Aug 2016.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 45, Williamsburg Avenue, Harwich was last sold on 13th January 2014 for £149,995 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since January 2014, the market for similar properties has risen by 84.5%.

• Sold Jan 2014£149,995
• Sold Nov 2010£147,000

According to the Land Registry and our network of Estate Agents, there have been 243 sales of properties similar to 45, Williamsburg Avenue, Harwich within a radius of 740 metres since 2017.

The most recent example is 65, Williamsburg Avenue, Harwich, CO12 4FF, a freehold house which sold for £234,000 on the 15th May 2026.

Read more about house prices in CO12.

• Sold May 2026£234,000 | 3 Bed House65, Williamsburg Avenue, Harwich, CO12 4FF65, Williamsburg Avenue, Harwich, CO12 4FF
• 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 Oct 2025£255,000 | 3 Bed House68, Williamsburg Avenue, Harwich, CO12 4FE68, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Aug 2025£250,000 | 3 Bed House86, Williamsburg Avenue, Harwich, CO12 4FE86, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2025£241,500 | 3 Bed House22, Williamsburg Avenue, Harwich, CO12 4FE22, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2023£215,000 | 3 Bed House37, Williamsburg Avenue, Harwich, CO12 4FF37, Williamsburg Avenue, Harwich, CO12 4FF
• 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 Jan 2022£229,995 | 3 Bed House58, Williamsburg Avenue, Harwich, CO12 4FE58, Williamsburg Avenue, Harwich, CO12 4FE
• 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 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 Dec 2019£217,000 | 3 Bed House60, Williamsburg Avenue, Harwich, CO12 4FE60, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Feb 2019£217,500 | 3 Bed House51, Williamsburg Avenue, Harwich, CO12 4FF51, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Jan 2019£205,000 | 3 Bed House41, Williamsburg Avenue, Harwich, CO12 4FF41, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Nov 2018£202,000 | 3 Bed House55, Williamsburg Avenue, Harwich, CO12 4FF55, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Mar 2017£175,000 | 3 Bed House39, Williamsburg Avenue, Harwich, CO12 4FF39, Williamsburg Avenue, Harwich, CO12 4FF
• Sold Feb 2017£184,000 | 3 Bed House96, Williamsburg Avenue, Harwich, CO12 4FE96, Williamsburg Avenue, Harwich, CO12 4FE

Williamsburg Avenue, Harwich, CO12 has a total of 102 addresses. According to our analysis of all the public data, 45, Williamsburg Avenue, Harwich is the 73rd largest and the 53rd most expensive property on the street.

When compared to the postcode district it is £2k more expensive than the average property in CO12.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Low.