49, Williamsburg Avenue, Harwich has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 25 Mar 2010.

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

According to HM Land Registry, 49, Williamsburg Avenue, Harwich was last sold on 24th August 2010 for £150,250 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since August 2010, the market for similar properties has risen by 84.1%.

• Sold Aug 2010£150,250

According to the Land Registry and our network of Estate Agents, there have been 279 sales of properties similar to 49, Williamsburg Avenue, Harwich within a radius of 730 metres since 2015.

The most recent example is 57, Williamsburg Avenue, Harwich, CO12 4FF, a freehold house which sold for £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 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 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 Sep 2019£225,000 | 3 Bed House59, Williamsburg Avenue, Harwich, CO12 4FF59, Williamsburg Avenue, Harwich, CO12 4FF
• 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 Apr 2017£205,000 | 3 Bed House88, Williamsburg Avenue, Harwich, CO12 4FE88, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Feb 2017£195,000 | 3 Bed House64, Williamsburg Avenue, Harwich, CO12 4FE64, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Oct 2016£200,000 | 3 Bed House110, Williamsburg Avenue, Harwich, CO12 4FE110, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2015£153,000 | 3 Bed House80, Williamsburg Avenue, Harwich, CO12 4FE80, Williamsburg Avenue, Harwich, CO12 4FE

Williamsburg Avenue, Harwich, CO12 has a total of 102 addresses. According to our analysis of all the public data, 49, Williamsburg Avenue, Harwich is the 21st largest and the 19th most expensive property on the street.

When compared to the postcode district it is £13k 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.