According to data from HM Land Registry, 25, Thirlmere, Stevenage sits on a plot of 456 m².

We have plot size data on 42 out of 42 other houses in the postcode and 25, Thirlmere, Stevenage sits on the 3rd largest plot.

25, Thirlmere, Stevenage has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 08 Jul 2024.

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, 25, Thirlmere, Stevenage was last sold on 30th June 1999 for £146,950 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold Jun 1999£146,950

According to the Land Registry and our network of Estate Agents, there have been 219 sales of properties similar to 25, Thirlmere, Stevenage within a radius of 720 metres since 2012.

The most recent example is 94, Serpentine Close, Stevenage, SG1 6AR, a freehold house which sold for £525,000 on the 19th November 2025.

Read more about house prices in SG1.

• Sold Nov 2025£525,000 | 3 Bed House94, Serpentine Close, Stevenage, SG1 6AR94, Serpentine Close, Stevenage, SG1 6AR
• Sold Mar 2025£540,500 | 4 Bed House5, Monarch Rise, Stevenage, SG1 4FS5, Monarch Rise, Stevenage, SG1 4FS
• Sold May 2024£610,000 | 4 Bed House67, Grasmere, Stevenage, SG1 6AU67, Grasmere, Stevenage, SG1 6AU
• Sold Feb 2024£610,000 | 4 Bed House116, Serpentine Close, Stevenage, SG1 6AR116, Serpentine Close, Stevenage, SG1 6AR
• Sold Oct 2022£570,000 | 4 Bed House104, Serpentine Close, Stevenage, SG1 6AR104, Serpentine Close, Stevenage, SG1 6AR
• Sold Oct 2022£587,500 | 4 Bed House1, Serpentine Close, Stevenage, SG1 6AP1, Serpentine Close, Stevenage, SG1 6AP
• Sold Oct 2022£560,000 | 4 Bed House3, Thirlmere, Stevenage, SG1 6AQ3, Thirlmere, Stevenage, SG1 6AQ
• Sold Oct 2022£550,000 | 4 Bed House112, Serpentine Close, Stevenage, SG1 6AR112, Serpentine Close, Stevenage, SG1 6AR
• Sold Sep 2022£625,000 | 4 Bed House12, Lomond Way, Stevenage, SG1 6AJ12, Lomond Way, Stevenage, SG1 6AJ
• Sold Feb 2022£550,000 | 4 Bed House99, Serpentine Close, Stevenage, SG1 6AR99, Serpentine Close, Stevenage, SG1 6AR
• Sold Oct 2021£550,000 | 4 Bed House39, Thirlmere, Stevenage, SG1 6AQ39, Thirlmere, Stevenage, SG1 6AQ
• Sold Sep 2021£556,000 | 4 Bed House83, Thirlmere, Stevenage, SG1 6AQ83, Thirlmere, Stevenage, SG1 6AQ
• Sold Jun 2021£475,000 | 4 Bed House32, Windermere Close, Stevenage, SG1 6AG32, Windermere Close, Stevenage, SG1 6AG
• Sold Jun 2021£580,000 | 4 Bed House14, Windermere Close, Stevenage, SG1 6AG14, Windermere Close, Stevenage, SG1 6AG
• Sold Jul 2019£470,000 | 4 Bed House29, Windermere Close, Stevenage, SG1 6AG29, Windermere Close, Stevenage, SG1 6AG
• Sold Nov 2017£500,000 | 4 Bed House85, Thirlmere, Stevenage, SG1 6AQ85, Thirlmere, Stevenage, SG1 6AQ
• Sold Jan 2017£475,000 | 4 Bed House19, Thirlmere, Stevenage, SG1 6AQ19, Thirlmere, Stevenage, SG1 6AQ
• Sold Nov 2016£415,000 | 4 Bed House5, Windermere Close, Stevenage, SG1 6AG5, Windermere Close, Stevenage, SG1 6AG
• Sold Apr 2015£395,000 | 4 Bed House12, Windermere Close, Stevenage, SG1 6AG12, Windermere Close, Stevenage, SG1 6AG
• Sold Apr 2012£302,000 | 4 Bed House31, Thirlmere, Stevenage, SG1 6AQ31, Thirlmere, Stevenage, SG1 6AQ

Thirlmere, Stevenage, SG1 has a total of 72 addresses. According to our analysis of all the public data, 25, Thirlmere, Stevenage is the 22nd largest and the 22nd most expensive property on the street.

When compared to the postcode district it is £196k more expensive than the average property in SG1.

• Martins Wood Primary School

  900 m away
• Round Diamond Primary School

  900 m away
• The Leys Primary and Nursery School

  1.3 km away

• The Nobel School

  1.5 km away
• Marriotts School

  2.5 km away
• Barclay Academy

  3.0 km away

• Stevenage

  |

  4.0 km away
• Knebworth

  |

  6.7 km away
• Hitchin

  |

  7.6 km away

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