According to data from HM Land Registry, 11, Thirlmere, Stevenage sits on a plot of 273 m².

We have plot size data on 42 out of 42 other houses in the postcode and 11, Thirlmere, Stevenage sits on the 18th largest plot.

11, Thirlmere, Stevenage has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Mar 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, 11, Thirlmere, Stevenage was last sold on 16th November 2009 for £317,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since November 2009, the market for similar properties has risen by 48.5%.

• Sold Nov 2009£317,000
• Sold Dec 1998£156,000

According to the Land Registry and our network of Estate Agents, there have been 109 sales of properties similar to 11, Thirlmere, Stevenage within a radius of 690 metres since 2016.

The most recent example is 4, Lowes Close, Stevenage, SG1 6AL, a freehold house which sold for £670,000 on the 26th September 2025.

Read more about house prices in SG1.

• Sold Sep 2025£670,000 | 5 Bed House4, Lowes Close, Stevenage, SG1 6AL4, Lowes Close, Stevenage, SG1 6AL
• Sold Aug 2025£672,500 | 5 Bed House27, Thirlmere, Stevenage, SG1 6AQ27, Thirlmere, Stevenage, SG1 6AQ
• Sold Jul 2025£565,000 | 4 Bed House40, Ryders Hill, Stevenage, SG1 6BJ40, Ryders Hill, Stevenage, SG1 6BJ
• Sold Jul 2025£585,000 | 5 Bed House14, Mount Keen, Stevenage, SG1 6BP14, Mount Keen, Stevenage, SG1 6BP
• Sold Mar 2025£540,500 | 4 Bed House5, Monarch Rise, Stevenage, SG1 4FS5, Monarch Rise, Stevenage, SG1 4FS
• Sold Jan 2025£645,000 | 4 Bed House61, Lomond Way, Stevenage, SG1 6BT61, Lomond Way, Stevenage, SG1 6BT
• Sold May 2024£610,000 | 4 Bed House67, Grasmere, Stevenage, SG1 6AU67, Grasmere, Stevenage, SG1 6AU
• Sold Feb 2023£548,500 | 4 Bed House10, Compton Place, Stevenage, SG1 4FN10, Compton Place, Stevenage, SG1 4FN
• Sold Oct 2022£600,000 | 4 Bed House68, Grasmere, Stevenage, SG1 6AU68, Grasmere, Stevenage, SG1 6AU
• Sold Oct 2022£587,500 | 4 Bed House1, Serpentine Close, Stevenage, SG1 6AP1, Serpentine Close, Stevenage, SG1 6AP
• Sold Oct 2021£550,000 | 4 Bed House39, Thirlmere, Stevenage, SG1 6AQ39, Thirlmere, Stevenage, SG1 6AQ
• Sold Jun 2021£505,000 | 4 Bed House4, Grayling Way, Stevenage, SG1 4FR4, Grayling Way, Stevenage, SG1 4FR
• Sold Jun 2021£580,000 | 4 Bed House14, Windermere Close, Stevenage, SG1 6AG14, Windermere Close, Stevenage, SG1 6AG
• Sold Mar 2021£507,500 | 4 Bed House8, Windermere Close, Stevenage, SG1 6AG8, Windermere Close, Stevenage, SG1 6AG
• Sold Dec 2020£490,000 | 4 Bed House22, Lomond Way, Stevenage, SG1 6AJ22, Lomond Way, Stevenage, SG1 6AJ
• Sold Dec 2019£455,000 | 4 Bed House5, Grayling Way, Stevenage, SG1 4FR5, Grayling Way, Stevenage, SG1 4FR
• Sold Mar 2019£510,000 | 4 Bed House66, Lomond Way, Stevenage, SG1 6BT66, Lomond Way, Stevenage, SG1 6BT
• Sold Dec 2018£421,500 | 4 Bed House48, Thirlmere, Stevenage, SG1 6AH48, Thirlmere, Stevenage, SG1 6AH
• Sold Jan 2018£480,000 | 4 Bed House8, Lowes Close, Stevenage, SG1 6AL8, Lowes Close, Stevenage, SG1 6AL
• Sold Dec 2016£470,000 | 4 Bed House9, Windermere Close, Stevenage, SG1 6AG9, Windermere Close, Stevenage, SG1 6AG

Thirlmere, Stevenage, SG1 has a total of 72 addresses. According to our analysis of all the public data, 11, Thirlmere, Stevenage is the 8th largest and the 10th most expensive property on the street.

When compared to the postcode district it is £271k 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.