According to data from HM Land Registry, 70, Williamsburg Avenue, Harwich sits on a plot of 275 m².

We have plot size data on 38 out of 46 other houses in the postcode and 70, Williamsburg Avenue, Harwich sits on the 3rd largest plot.

70, Williamsburg Avenue, Harwich has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 17 Feb 2026.

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, 70, Williamsburg Avenue, Harwich was last sold on 28th May 2026 for £267,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since May 2026, the market for similar properties has risen by 17.0%.

According to the Land Registry and our network of Estate Agents, there have been 151 sales of properties similar to 70, Williamsburg Avenue, Harwich within a radius of 750 metres since 2012.

The most recent example is 51, The Vineway, Harwich, CO12 4BG, a freehold house which sold for £300,000 on the 24th April 2026.

Read more about house prices in CO12.

• Sold Apr 2026£300,000 | 4 Bed House51, The Vineway, Harwich, CO12 4BG51, The Vineway, Harwich, CO12 4BG
• Sold Feb 2025£270,000 | 4 Bed House43, Parkeston Road, Harwich, CO12 4HF43, Parkeston Road, Harwich, CO12 4HF
• Sold Feb 2025£245,000 | 3 Bed House56, Williamsburg Avenue, Harwich, CO12 4FE56, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Oct 2024£291,000 | 4 Bed House1, Ray Avenue, Harwich, CO12 4BA1, Ray Avenue, Harwich, CO12 4BA
• Sold Mar 2024£300,000 | 4 Bed House23, Shaftesbury Avenue, Harwich, CO12 4BS23, Shaftesbury Avenue, Harwich, CO12 4BS
• Sold Sep 2023£250,000 | 4 Bed House61, The Vineway, Harwich, CO12 4BG61, The Vineway, Harwich, CO12 4BG
• Sold Apr 2023£297,000 | 3 Bed House29, Larksfield Crescent, Harwich, CO12 4BL29, Larksfield Crescent, Harwich, CO12 4BL
• Sold Jul 2022£150,000 | 4 Bed House66, Williamsburg Avenue, Harwich, CO12 4FE66, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Feb 2022£227,000 | 4 Bed House74, Heron Way, Harwich, CO12 3FF74, Heron Way, Harwich, CO12 3FF
• Sold Apr 2021£240,000 | 4 Bed House64, Heron Way, Harwich, CO12 3FF64, Heron Way, Harwich, CO12 3FF
• Sold Apr 2021£207,500 | 3 Bed House106, Williamsburg Avenue, Harwich, CO12 4FE106, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Nov 2020£263,000 | 4 Bed House61, Larksfield Crescent, Harwich, CO12 4BL61, Larksfield Crescent, Harwich, CO12 4BL
• Sold Sep 2020£212,500 | 4 Bed House62, Heron Way, Harwich, CO12 3FF62, Heron Way, Harwich, CO12 3FF
• Sold Jun 2015£153,000 | 3 Bed House80, Williamsburg Avenue, Harwich, CO12 4FE80, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Nov 2012£135,000 | 3 Bed House46, Williamsburg Avenue, Harwich, CO12 4FE46, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Aug 2012£140,000 | 3 Bed House100, Williamsburg Avenue, Harwich, CO12 4FE100, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Aug 2012£140,000 | 3 Bed House82, Williamsburg Avenue, Harwich, CO12 4FE82, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2012£140,000 | 3 Bed House98, Williamsburg Avenue, Harwich, CO12 4FE98, Williamsburg Avenue, Harwich, CO12 4FE
• Sold Jun 2012£140,000 | 3 Bed House108, Williamsburg Avenue, Harwich, CO12 4FE108, Williamsburg Avenue, Harwich, CO12 4FE
• Sold May 2012£142,500 | 3 Bed House104, Williamsburg Avenue, Harwich, CO12 4FE104, Williamsburg Avenue, Harwich, CO12 4FE

Williamsburg Avenue, Harwich, CO12 has a total of 102 addresses. According to our analysis of all the public data, 70, Williamsburg Avenue, Harwich is the 4th largest and the 5th most expensive property on the street.

When compared to the postcode district it is £33k 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

  |

  1.6 km away

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