Apartment 18, Robert Ellis Court St Martins Road, Knebworth, SG3 6EL is a leasehold flat built between 2007-2011. The property offers approximately 818 square feet of living space and is situated on the 1st floor. In this location, apartments of similar size usually have two bedrooms.

The estimated current market value of the property is £313,897 , which equates to approximately £384 per square foot. It was last sold on 18 Jul 2025 for £300,000. Since then, the value has increased by £13,897, representing a 4.6% increase, or approximately 11.0% per year.

The current estimated value of £313,897 is:

  • 32.4% lower than the average property price on St Martins Road
  • 12.6% lower than the average in the SG3 6EL postcode area
  • and 43.6% lower than the average price for Knebworth 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 8 April 2024, the property was recorded as owner-occupied.

View sold house prices in SG3 6EL

Building approximate location

About Property

Type
Flat
Built
2007-2011
Interior Size
818 sq ft
Tenure
Leasehold
Floor level
1st floor
Price (estimate)
£313,897
Price Per sq ft (estimate)
£384
Bedroom Count (estimate)
2 bedrooms

EPC Summary

Apartment 18, Robert Ellis Court St Martins Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6EL has an Energy Performance Certificate (EPC) rating of B, based on the latest assessment carried out on 8 Apr 2024.

This property uses a gas boiler with underfloor heating as its main heating source. It is connected to mains gas. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 28 Jun 2011. The rating of B is unchanged, though the energy efficiency score decreased by 1.2%.

Heating Type
Boiler and underfloor heating, mains gas
Good
Hot Water
From main system
Good
Walls
Cavity wall, as built, insulated (assumed)
Good
Windows
Fully double glazed
Good
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to SG3 6EL

15 th / 23
Price Rank
13% lower than average
8 th / 23
Size Rank
3% bigger than average
20 th / 23
Price Per Sq FT Rank
15% lower than average

Compared to other properties in SG3 6EL , this flat's estimated value ranks 15th out of 23. Based on price per square foot, it ranks 20th out of 23 properties. This indicates a lower price per square foot than most, suggesting good value for the space offered. In terms of size, this home ranks 8th out of 23 properties in its postcode area.

Sale History

Today
£313,897
streetscan.co.uk estimate
+5 %
18 Jul 2025
£300,000
Leasehold
+3.6 %
24 Aug 2015
£289,500
Leasehold
+44.8 %
28 Feb 2013
£200,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 3
size: 893 sq ft
sale price: £420,000
sale date: 12 Oct 2023
rooms: 3
size: 818 sq ft
sale price: £438,000
sale date: 23 Apr 2021
rooms: 3
size: 720 sq ft
sale price: £345,000
sale date: 20 Sep 2019
rooms: 2
size: 807 sq ft
sale price: £290,000
sale date: 15 Dec 2017
rooms: 2
size: 720 sq ft
sale price: £325,000
sale date: 30 Jun 2017

Data Sources

The property at Apartment 18, Robert Ellis Court St Martins Road, Knebworth, SG3 6EL appears three times in the Land Registry records, with the latest transaction recorded on 18 Jul 2025. It also has three Energy Performance Certificates (EPC) entries, the earliest dating back to 8 Apr 2024. 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.