Repeat for each room. Each one asks:
Room*Short answer
Type of room*Choose one
Length (m)Number
Tape or laser, or measure from a photo of the wall with the door in it. A photo measure is an estimate.
Shown only when the answers above make it relevant
Width (m)Number
Shown only when the answers above make it relevant
Floor area (m²)Worked out by the form
Shown only when the answers above make it relevant
Openable area of windows, doors and skylights to the outside (m²)Number
Only openings that open to the outside and can be fixed in the open position. Add them together.
Shown only when the answers above make it relevant
Openable area as a share of the floor (%)Worked out by the form
Shown only when the answers above make it relevant
Openable windowsWorked out by the form
Shown only when the answers above make it relevant
Was the room lawful without openable windows when it was built or converted?Yes or No
An exemption applies to a room that was lawful when built or converted. Keep the evidence.
Shown only when the answers above make it relevant
r_window_issueWorked out by the form
Has a cooktop?Yes or No
Shown only when the answers above make it relevant
Has a shower or bath?Yes or No
Shown only when the answers above make it relevant
Kitchen extractionChoose one
Shown when “Has a cooktop?” is Yes
Fan installed before 1 July 2019?Yes or No
Shown when “Has a cooktop?” is Yes and “Kitchen extraction” is “Extractor fan or range hood venting outside”
Vents to the outside and works?Yes or No
Shown when “Has a cooktop?” is Yes and “Kitchen extraction” is “Extractor fan or range hood venting outside”
Fan diameter including ducting (mm)Number
Shown when “Has a cooktop?” is Yes and “Kitchen extraction” is “Extractor fan or range hood venting outside” and “Fan installed before 1 July 2019?” is No
Exhaust capacity (L/s)Number
From the installer, in writing.
Shown when “Has a cooktop?” is Yes and “Kitchen extraction” is “Extractor fan or range hood venting outside” and “Fan installed before 1 July 2019?” is No
- CheckA fan installed on or after 1 July 2019 needs a diameter of at least 150 mm or an exhaust capacity of at least 50 L/s.
Shown only when the answers above make it relevant
- WarningRecirculating systems and fans that do not vent outside do not meet the standard.
Shown only when the answers above make it relevant
k_issueWorked out by the form
Bathroom extractionChoose one
Shown when “Has a shower or bath?” is Yes
Fan installed before 1 July 2019?Yes or No
Shown when “Has a shower or bath?” is Yes and “Bathroom extraction” is “Extractor fan or range hood venting outside”
Vents to the outside and works?Yes or No
Shown when “Has a shower or bath?” is Yes and “Bathroom extraction” is “Extractor fan or range hood venting outside”
Fan diameter including ducting (mm)Number
Shown when “Has a shower or bath?” is Yes and “Bathroom extraction” is “Extractor fan or range hood venting outside” and “Fan installed before 1 July 2019?” is No
Exhaust capacity (L/s)Number
From the installer, in writing.
Shown when “Has a shower or bath?” is Yes and “Bathroom extraction” is “Extractor fan or range hood venting outside” and “Fan installed before 1 July 2019?” is No
- CheckA fan installed on or after 1 July 2019 needs a diameter of at least 120 mm or an exhaust capacity of at least 25 L/s.
Shown only when the answers above make it relevant
- WarningRecirculating systems and fans that do not vent outside do not meet the standard.
Shown only when the answers above make it relevant
b_issueWorked out by the form
r_issueWorked out by the form
Ventilation in this roomWorked out by the form
Photos of the windows and any fanPhotos