To get a more accurate and up-to-date figure, you can use EdgeProp's market trends tracker and historical property data to compare sales of similar HDB flats at different levels within the same block or estate. This tool can provide insights into the specific price differences based on recent transaction data.
Thank you for reaching out to EdgeProp Buddy. Please note that I'm still in Beta mode. For detailed insights, it's always a good idea to consult with a real estate professional on topics like this.