9 Mymms Drive, Brookmans Park, Hatfield, AL9 7AE is a freehold detached property built in 2025. The property offers approximately 5,963 square feet of living space. In this location, properties of similar size usually have six bedrooms.

The estimated current market value of the property is £1,317,935 , which equates to approximately £221 per square foot. It was last sold on 18 Jul 2023 for £1,375,000. Since then, the value has decreased by £57,065, representing a 4.2% decrease, or approximately 1.7% per year.

The current estimated value of £1,317,935 is:

  • 25.9% lower than the average property price on Mymms Drive
  • 25.4% lower than the average in the AL9 7AE postcode area
  • and 216.8% higher than the average price for Hatfield as a whole

At the most recent EPC inspection on 3 April 2023, the property was recorded as owner-occupied.

View sold house prices in AL9 7AE

Building approximate location

About Property

Type
Detached House
Built
2025
Interior Size
5963 sq ft
Tenure
Freehold
Price (estimate)
£1,317,935
Price Per sq ft (estimate)
£221
Bedroom Count (estimate)
6 bedrooms

EPC Summary

9 Mymms Drive, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7AE has an Energy Performance Certificate (EPC) rating of B, based on the latest assessment carried out on 6 Oct 2025.

This property uses an electric air source heat pump with both radiators and underfloor heating 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 3 Apr 2023, when the property was rated D. Since then, the rating has improved to B, with the energy efficiency score increasing by 63.6%.

Since the previous assessment, several changes were observed:

  • The heating system was upgraded from boiler and radiators, mains gas to air source heat pump, radiators and underfloor, electric, improving energy efficiency from good to very good.
  • The hot water energy efficiency changing from good to average, while the system remained as from main system.
  • The roof construction or insulation changed from pitched, no insulation (assumed) to average thermal transmittance 0.15 w/m-¦k, improving energy efficiency from very poor to very good.
  • The wall construction or insulation changed from solid brick, as built, no insulation (assumed) to average thermal transmittance 0.18 w/m-¦k, improving energy efficiency from very poor to very good.
  • The windows were upgraded from fully double glazed to high performance glazing.
  • The lighting was updated from low energy lighting in 43% of fixed outlets to excellent lighting efficiency, with efficiency improving from average to very good.
Heating Type
Air source heat pump, radiators and underfloor, electric
Very Good
Hot Water
From main system
Average
Floor
Average thermal transmittance 0.13 W/m-¦K
Very Good
Roof
Average thermal transmittance 0.15 W/m-¦K
Very Good
Walls
Average thermal transmittance 0.18 W/m-¦K
Very Good
Windows
High performance glazing
Very Good
Lighting
Excellent lighting efficiency
Very Good

Compared to AL9 7AE

20 th / 20
Price Rank
25% lower than average
1 st / 14
Size Rank
105% bigger than average
14 th / 14
Price Per Sq FT Rank
64% lower than average

Compared to other properties in AL9 7AE , this house's estimated value ranks 20th out of 20. Based on price per square foot, it ranks 14th out of 14 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 1st out of 14 properties in its postcode area.

Sale History

Today
£1,317,935
streetscan.co.uk estimate
-4 %
18 Jul 2023
£1,375,000
Leasehold

Area Insights

Similar Properties Sold Nearby

24 Mymms Drive, Brookmans Park, Hatfield, AL9 7AF
rooms: 7
size: 6491 sq ft
sale price: £1,350,000
sale date: 19 Jan 2024
8 Mymms Drive, Brookmans Park, Hatfield, AL9 7AF
rooms: 11
size: 5242 sq ft
sale price: £2,999,995
sale date: 8 Aug 2022

Data Sources

The property at 9 Mymms Drive, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7AE appears once in the Land Registry records, with the transaction recorded on 18 Jul 2023. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 6 Oct 2025. 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.
↑