910027 Mountain View Observatory was a 3,889 piece Bricklink set released in 2022. It was part of LEGO Ideas Projects: Round 3.
Recently retired The set was recently retired and should experience a significant value increase in coming months.

Designer Program Round 3 Sets

Theme / Subtheme Bricklink / Designer Program
Year 2022
Pieces 4,062
Availability Retired
910002 LEGO Studgate Train Station
Retail $399.99
Value ~$399.99
Theme / Subtheme Bricklink / Designer Program
Year 2022
Pieces 3,371
Availability Retired
910008 LEGO Modular Construction Site
Retail $319.99
Value ~$319.99
Theme / Subtheme Bricklink / Designer Program
Year 2022
Pieces 2,705
Availability Retired
910004 LEGO Winter Chalet
Retail $199.99
Value ~$199.99
Theme / Subtheme Bricklink / Designer Program
Year 2022
Pieces 1,377
Availability Retired
910011 LEGO 1950's Diner
Retail $129.99
Value ~$129.99

Sets in Bricklink / Designer Program

Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces / Minifigs 3,470 / 6
Availability Retired
910023 LEGO Venetian Houses
Retail $289.99
Value $669.33
Growth 130.8%
Annual growth 40.2%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 2,779
Availability Retired
910013 LEGO Retro Bowling Alley
Retail $229.99
Value $400.00
Growth 73.9%
Annual growth 24.8%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 2,149
Availability Retired
910009 Modular LEGO Store
Retail $179.99
Value $436.66
Growth 142.6%
Annual growth 24.8%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 2,085
Availability Retired
910003 LEGO Mountain Windmill
Retail $179.99
Value $403.33
Growth 124.1%
Annual growth 40.2%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces / Minifigs 1,973 / 6
Availability Retired
910001 LEGO Castle in the Forest
Retail $179.99
Value $449.20
Growth 149.6%
Annual growth 33.1%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 1,606
Availability Retired
910010 LEGO The Great Fishing Boat
Retail $129.99
Value $310.43
Growth 138.8%
Annual growth 30.6%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 1,062
Availability Retired
910017 LEGO Kakapo
Retail $79.99
Value $190.69
Growth 138.4%
Annual growth 25.3%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 874
Availability Retired
910015 LEGO Clockwork Aquarium
Retail $64.99
Value ~$64.99
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 578
Availability Retired
910016 LEGO Sheriff's Safe
Retail $49.99
Value $123.86
Growth 147.8%
Annual growth 32.7%
Theme / Subtheme BrickLink / Designer Program
Year 2021
Pieces 540
Availability Retired
910028 LEGO Pursuit of Flight
Retail $54.99
Value $129.98
Growth 136.4%
Annual growth 30.2%
The new "Mountain View" Observatory has 3 levels and the shape of the original version.

The basement contains: a computer room, an engine room and a sleeping/relaxing area.
The visitors level contains: a small exhibition about space, drinks & snacks, some books and a relaxing area and a desk with a happy member of the observatory.
The visitors platform contains: a small housing with details, a telescope, a great view, the dome contains a huge telescope a computer area and lots of details.
The dome has 2 sliding doors that can hide or release the telescope.
The complete Observatory can be opened. I also put some light bricks inside to illuminate the levels.
The nature surroundings received more details and 2 trees.

I hope that this observatory will inspire some kids in science and space. And maybe it will also find a place in a real observatory.
Description provided by LEGO©