48 Thirlmere, Stevenage, SG1 6AH is a freehold detached property built between 2003-2006. The property offers approximately 1,367 square feet of living space. In this location, properties of similar size usually have four bedrooms.

The estimated current market value of the property is £487,273 , which equates to approximately £356 per square foot. It was last sold on 10 Dec 2018 for £421,500. Since then, the value has increased by £65,773, representing a 15.6% increase, or approximately 2.1% per year.

The current estimated value of £487,273 is:

  • 9.1% lower than the average property price on Thirlmere
  • 3.8% lower than the average in the SG1 6AH postcode area
  • and 28.4% higher than the average price for Stevenage as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded as owner-occupied both times. This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 29 July 2025, the property was recorded as owner-occupied.

View sold house prices in SG1 6AH

Building approximate location

About Property

Type
Detached House
Built
2003-2006
Interior Size
1367 sq ft
Tenure
Freehold
Price (estimate)
£487,273
Price Per sq ft (estimate)
£356
Bedroom Count (estimate)
4 bedrooms

EPC Summary

48 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AH has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 29 Jul 2025.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are high performance glazing.

The previous EPC assessment was conducted on 6 Jul 2018, when the property was rated D. Since then, the rating has improved to C, with the energy efficiency score increasing by 19%.

Since the previous assessment, several changes were observed:

  • The roof construction or insulation changed from pitched, 150 mm loft insulation to pitched, 200 mm loft insulation, with no change in energy efficiency (good).
  • The windows were upgraded from fully double glazed to high performance glazing.
  • The lighting was changed from low energy lighting in 50% of fixed outlets to good lighting efficiency, with no change in efficiency (good).
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 200 mm loft insulation
Good
Walls
Cavity wall, filled cavity
Good
Windows
High performance glazing
Good
Lighting
Good lighting efficiency
Good

Compared to SG1 6AH

12 th / 29
Price Rank
4% lower than average
6 th / 21
Size Rank
36% bigger than average
18 th / 21
Price Per Sq FT Rank
29% lower than average

Sale History

Today
£487,273
streetscan.co.uk estimate
+16 %
10 Dec 2018
£421,500
Freehold
-8.9 %
13 Sep 2018
£462,500
Freehold
+210.5 %
21 Dec 1999
£148,950
Freehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

rooms: 6
size: 1206 sq ft
sale price: £320,000
sale date: 1 Oct 2010
rooms: 6
size: 1400 sq ft
sale price: £364,995
sale date: 23 Jul 2010
rooms: 7
size: 1464 sq ft
sale price: £186,950
sale date: 22 Sep 2000
rooms: 6
size: 1281 sq ft
sale price: £550,000
sale date: 29 Oct 2021
rooms: 8
size: 1368 sq ft
sale price: £470,000
sale date: 15 Aug 2019

Data Sources

The property at 48 Thirlmere, Stevenage, SG1 6AH appears three times in HM Land Registry records, with the latest transaction recorded on 10 Dec 2018. It also has two Energy Performance Certificate (EPC) records, the earliest dating back to 29 Jul 2025. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.