The properties of the new series are:

• Measurement: Unitary count of starts (#)
• Adjustment: Not seasonally adjusted (NSA)
• Native frequency: Monthly
• Start date: 2019m7
• Has gaps: Yes

The series resides in the historical catalog:

• Poland » Real Estate » Residential » Stage of construction » Starts

and is:

• HSQSTRRCMUM.IPOL = Real estate: Residential - Construction begun - Company, (#, NSA)

Please be aware that

The remaining series in the "residential construction starts" dataset start at 2009m4 or 2019m1.

The "total / all types of owner" series HSQSTRRTUM.IPOL equals the sum of its seven reported components.