Over the past 29 years, there have been 25 property sales recorded in the SG6 3NW postcode area. The highest sale price reached £485,000, while the most recent sale was for a semi-detached flat sold in December 2025 for £450,000.

The estimated average property value in SG6 3NW currently stands at £513,528, which is approximately 14.4% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £4,611.

Property prices in SG6 3NW have risen by 4.4% over the past year , with a total increase of 11.8% over the past five years , and a long-term rise of 44.7% over the past decade .

The most common type of property sold in the area is flat, making up around 52% of transactions , followed by terraced and semi-detached.

Housing in SG6 3NW is predominantly owner-occupied, with an estimated 83% of homes being lived in by the owners.

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Property Sales

1 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 3bed
📐 915 sq ft
Today
£373,705
streetscan.co.uk estimate
16 Feb 2024
£359,461
17 Apr 2009
£203,500
More details

10 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

Today
£544,279
streetscan.co.uk estimate
14 Sep 2018
£465,000
16 Mar 2005
£370,000

11 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Detached
🛏️ 4bed
📐 1421 sq ft
Today
£739,688
streetscan.co.uk estimate
24 May 2013
£405,000
More details

12 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Detached
🛏️ 5bed
📐 1378 sq ft
Today
£735,664
streetscan.co.uk estimate
21 May 2010
£400,000
More details

15 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Detached
🛏️ 5bed
📐 1612 sq ft
Today
£828,961
streetscan.co.uk estimate
18 Mar 2010
£446,000
5 Aug 1997
£185,000
View +1 more
More details

2 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 3bed
📐 1076 sq ft
Today
£422,297
streetscan.co.uk estimate
22 Mar 2013
£273,625
More details

3 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 3bed
📐 1076 sq ft
Today
£357,471
streetscan.co.uk estimate
25 Oct 2022
£365,000
27 Apr 2001
£157,000
More details

4 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 3bed
📐 915 sq ft
Today
£389,722
streetscan.co.uk estimate
28 Apr 2006
£249,000
21 Jul 1997
£131,000
More details

5 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 4bed
📐 936 sq ft
Today
£438,135
streetscan.co.uk estimate
12 May 2023
£450,000
30 May 2019
£375,000
View +1 more
More details

6 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 4bed
📐 1081 sq ft
Today
£408,986
streetscan.co.uk estimate
23 Mar 2010
£265,000
More details

7 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Terraced
🛏️ 3bed
📐 1141 sq ft
Today
£445,818
streetscan.co.uk estimate
18 Dec 2025
£450,000
23 Feb 2005
£235,000
View +1 more
More details

8 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Flat
🛏️ 3bed
📐 1055 sq ft
Today
£378,423
streetscan.co.uk estimate
20 Dec 2013
£260,000
30 Sep 1999
£162,500
View +1 more
More details

9 St Marys Close, Letchworth Garden City, North Hertfordshire, Hertfordshire, SG6 3NW

🏠 Detached
🛏️ 5bed
📐 1518 sq ft
Today
£571,355
streetscan.co.uk estimate
25 Jan 2019
£485,000
More details

Area Insights

Data Sources

Properties at SG6 3NW appear twenty-five times in the Land Registry records, with the latest transaction recorded on 18 Dec 2025. It also has twelve Energy Performance Certificates (EPC) entries, the earliest dating back to 6 Nov 2017. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.