Our Data Sources
21, Williamsburg Avenue, Harwich has no records in the Land Registry and a single entry in the EPC database dated April 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 21, Williamsburg Avenue, Harwich is in very good condition we estimate a sale value of £329,652 and a rental value of £1,498 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £291,977 and a rental value of £1,327 per month.
Energy Efficiency
21, Williamsburg Avenue, Harwich has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 20 Apr 2021.
The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 80 sales of properties similar to 21, Williamsburg Avenue, Harwich within a radius of 740 metres since 2017.
The most recent example is 70, Williamsburg Avenue, Harwich, CO12 4FE, a freehold house which sold for £267,000 on the 28th May 2026.
Read more about house prices in CO12.
- Sold May 2026£267,000 | 4 Bed House70, Williamsburg Avenue, Harwich, CO12 4FE70, Williamsburg Avenue, Harwich, CO12 4FE
- Sold Apr 2026£300,000 | 4 Bed House51, The Vineway, Harwich, CO12 4BG51, The Vineway, Harwich, CO12 4BG
- Sold Feb 2026£300,000 | 4 Bed House133, Clarkes Road, Harwich, CO12 4JS133, Clarkes Road, Harwich, CO12 4JS
- Sold Feb 2025£270,000 | 4 Bed House43, Parkeston Road, Harwich, CO12 4HF43, Parkeston Road, Harwich, CO12 4HF
- Sold Oct 2024£291,000 | 4 Bed House1, Ray Avenue, Harwich, CO12 4BA1, Ray Avenue, Harwich, CO12 4BA
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £253,108, ranging from £231,285 to £309,471.
- 19 Williamsburg Avenue
4 Bed House | 17 m | Est. Value: £309,471
- 2 Ralph Knight Way
3 Bed House | 18 m | Est. Value: £239,123
- 42 Williamsburg Avenue
3 Bed House | 21 m | Est. Value: £240,552
- 44 Williamsburg Avenue
3 Bed House | 22 m | Est. Value: £231,285
- 4 Ralph Knight Way
3 Bed House | 24 m | Est. Value: £239,123
Location Comparison
Williamsburg Avenue, Harwich, CO12 has a total of 102 addresses. According to our analysis of all the public data, 21, Williamsburg Avenue, Harwich is the 2nd largest and the most expensive property on the street.
When compared to the postcode district it is £69k more expensive than the average property in CO12.
More reading links
Schools Nearby
- The Mayflower Primary School500 m away
- Spring Meadow Primary School & Nursery600 m away
- All Saints' Church of England Voluntary Aided Primary School, Dovercourt800 m away
- Harwich and Dovercourt High School1.1 km away
- Felixstowe School6.0 km away
- Holbrook Academy9.2 km away
More reading links
Public Transport Nearby
- Harwich International|1.1 km away
- Dovercourt|1.1 km away
- Harwich Town|1.7 km away
Available Internet Speeds
According to recent data from Ofcom, there is poor internet coverage in this area which may result in poor or no internet connectivity.
According to recent data from Ofcom, Slow or No Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Low.












