About ROBOLAB Cities and Transportation Set
ROBOLAB Cities and Transportation Set (9723-1) is a LEGO LEGO set from 2000 valued at $190.00 on BrickLink. It contains 115 cataloged parts. This set has been retired and is only available on the secondary market.
Seller notes
- This is a vintage set (2000). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.
Parts (115)
Tire 30 x 10.5 Offset Tread
Black×2
Plate, Round 2 x 2 with Rounded Bottom (Boat Stud)
Black×2
Technic, Brick 1 x 10 with Holes
Black×4
Technic, Pin with Short Friction Ridges
Black×13
Tire Technic Wedge Belt Wheel
Black×2
Electric Sensor, Light with Non-Removable Lead (Undetermined Type)
Blue×2
Electric, Motor 9V Micromotor Pulley
Light Gray×4
Wheel 30.4 x 14 VR
Yellow×2
Brick 2 x 2
Black×4
Brick 1 x 2
Black×4
Plate 2 x 3
Yellow×4
Plate 2 x 2
Yellow×4
Plate 1 x 2
Yellow×16
Baseplate, Road 32 x 32 8-Stud Straight with Road Pattern
Green
Plate 4 x 4
Yellow×2
Plate 4 x 6
Yellow×2
Plate 6 x 10
Yellow×2
Brick 1 x 2 without Bottom Tube
Trans-Red×2
Brick 1 x 2 without Bottom Tube
Trans-Yellow×4
Brick 1 x 2 without Bottom Tube
Trans-Green×2
Tile 1 x 2
White×6
Tile 1 x 2
Red×6
Technic, Plate 2 x 6 with 5 Holes
Yellow×2
Technic, Pin 3/4
Dark Gray×9
Technic, Liftarm, Modified Bent Thick 1 x 11.5 Double
Yellow×4
Technic, Axle and Pin Connector Angled #1
Blue×4
Technic, Axle and Pin Connector Angled #5 - 112.5 degrees
Light Gray×2
Technic, Liftarm Thin 1 x 5
Light Gray×4
Technic, Axle and Pin Connector Angled #2 - 180 degrees
Light Gray×2
Technic, Axle 2L Notched
Black×4
Technic, Brick 1 x 2 with Axle Hole
Green×4
Technic, Axle and Pin Connector Perpendicular 3L with Pin Hole
Light Gray×2
Technic, Axle 5L
Black×2
Plate 1 x 8
Yellow×4
Wheel with Split Axle Hole
Yellow×8
Tire 24mm D. x 8mm Offset Tread - Interior Ridges
Black×2
Plate 1 x 3
Yellow×8
Minifigure, Head Standard Grin Pattern
Yellow×2
Minifigure, Head Glasses with Black Sunglasses and Standard Grin Pattern
Yellow
Minifigure, Head Standard Grin and Red Nose Freckles Pattern
Yellow
Tire 17 x 43
Black×2
Technic, Gear 8 Tooth
Light Gray×6
Technic, Gear 24 Tooth with 1 Axle Hole
Light Gray×4
Technic, Gear 24 Tooth Crown - Reinforced
Light Gray×4
Plate 1 x 6
Yellow×4
Technic, Pin without Friction Ridges
Light Gray×12
Technic, Brick 1 x 2 with Hole
Black×16
Technic, Brick 1 x 4 with Holes
Black×8
Technic, Brick 1 x 8 with Holes
Black×4
Technic, Brick 1 x 16 with Holes
Black×5
Technic, Axle 4L
Black×2
Technic, Axle 6L
Black×2
Technic, Axle 8L
Black×2
Technic, Axle 12L
Black×2
Technic, Plate 2 x 4 with 3 Holes
Yellow×8
Plate 1 x 4
Yellow×8
Technic Bush
Light Gray×21
Technic, Axle 10L
Black×2
Technic, Plate 2 x 8 with 7 Holes
Yellow×4
Technic, Gear Rack 1 x 4
Light Gray×4
Technic, Axle 1L with Pin without Friction Ridges with Round Hole
Light Gray×8
Technic, Brick 1 x 6 with Holes
Black×4
Technic, Brick 1 x 12 with Holes
Black×4
Minifigure, Hair Male Smooth
Black
Brick, Round 2 x 2 with Axle Hole
Black×8
Bracket 2 x 2 - 2 x 2 with 2 Holes
Black×2
Technic, Gear 16 Tooth - Axle Hole with Open Sides
Light Gray×4
Dacta Sorting Tray - 29 Compartment - Set 9723 (Fits with bin01)
Trans-Clear
Rubber Band / Belt Holder 2 x 4 x 2 1/3
Dark Gray
Technic Wedge Belt Wheel (Pulley)
Light Gray×4
Sticker Sheet for Storage Bin, Education Labels White with Blue Bottom Border - Sheet of 2
(Not Applicable)
Technic Bush 1/2 Smooth
Light Gray×5
Technic, Pin 1/2 without Friction Ridges
Light Gray×5
Electric, Motor 9V Mini-Motor, Lighter Weight
Black
Plate 1 x 10
Yellow×4
Minifigure, Headgear Cap - Long Flat Bill
Blue
Technic, Axle 3L
Black×2
Minifigure, Hair Female
Brown
Minifigure, Hair Female
Black
Technic, Gear Worm Screw, Long
Black×4
Electric, Wire with Brick 2 x 2 x 2/3 Ends 20L
Black×2
Electric, Wire with Brick 2 x 2 x 2/3 Ends 26L
Yellow×3
Electric, Wire with Brick 2 x 2 x 2/3 Ends 36L
Black×2
Electric, Wire with Brick 2 x 2 x 2/3 Ends 69L
Black
Electric, Wire with Brick 2 x 2 x 2/3 Ends 378L
Black
Electric, Light Brick 1 x 2 with Lamp on Side (6034 / 6035)
White×4
Technic, Gear 24 Tooth Clutch
White
Technic, Axle and Pin Connector Perpendicular
Light Gray×2
Technic, Axle Connector 2L (Ridged with x Hole x Orientation)
Light Gray×2
Technic, Gear Differential 24-16 Tooth
Dark Gray
Tire 30.4 x 14 VR
Black×2
Technic, Axle 3L with Stud
Dark Gray×2
Technic, Gearbox 2 x 4 x 3 1/3
Yellow
Technic, Gear 12 Tooth Bevel
Light Gray×9
Technic, Liftarm Thin 1 x 3 - Axle Holes
Light Gray×2
Dacta Storage Bin Lid (Fits with bin01 and bin03)
Trans-Clear
Technic, Pin Connector Round 2L without Slot (Pin Joiner Round)
Yellow×2
Hose, Rigid 3mm D. 18L / 14.4cm
Blue×2
Hose, Rigid 3mm D. 20L / 16.0cm
Blue×2
Electric Sensor, Touch
Light Gray×2
Hips and Legs Plain
White
Hips and Legs Plain
Red
Hips and Legs Plain
Blue
Hips and Legs Plain
Black
Set 9723 Activity Booklet 1 - Simple Traffic Lights
(Not Applicable)
Set 9723 Activity Booklet 2 - Traffic Monitoring
(Not Applicable)
Set 9723 Activity Booklet 3 - Intelligent Vehicles
(Not Applicable)
Set 9723 Activity Booklet 4 - Monorail
(Not Applicable)
Torso Plain / Red Arms / Yellow Hands
Red
Torso Paradisa Palm Tree Pattern / White Arms / Yellow Hands
White
Torso Zipper Jacket and 3 Pockets Pattern / Blue Arms / Yellow Hands
Blue
Torso with Octan Logo Pattern / White Arms / Yellow Hands
White
Dacta Storage Bin Small/Medium
Black
Rubber Belt Medium (Round Cross Section) - Approx. 3 x 3
Red×2
Rubber Band Small (Square Cross Section)
Black×4Common questions about ROBOLAB Cities and Transportation Set
How much is LEGO ROBOLAB Cities and Transportation Set (9723-1) worth?
ROBOLAB Cities and Transportation Set sells for an average of $190.00 used and $115.00 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.
Is LEGO ROBOLAB Cities and Transportation Set (9723-1) retired?
Yes, ROBOLAB Cities and Transportation Set was released in 2000 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms. At its current price point, it has appreciated since retirement.
How do I check if my ROBOLAB Cities and Transportation Set set is complete?
Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.