In 1969, LEGO released 3 LEGOLAND sets in the subtheme Building, all of these sets have been retired. For that year, the total price of all retail sets cost $41, today those sets are valued around $1,236, a growth of 2918%.
Most valuable 1969 LEGOLAND set
346-2 House with Car $708.40
3 sets

344 Bungalow

Theme / Subtheme LEGOLAND / Building
Year 1969
Pieces 77
Availability Retired
344 LEGOLAND Bungalow
Retail $8.99
Value $303.77
Growth  +3279.0%
Annual growth 6.4%

345 House with Mini Wheel Car

Theme / Subtheme LEGOLAND / Building
Year 1969
Pieces 140
Availability Retired
345 LEGOLAND House with Mini Wheel Car
Retail $14.99
Value $224.12
Growth  +1395.1%
Annual growth 4.9%

346-2 House with Car

Theme / Subtheme LEGOLAND / Building
Year 1969
Pieces 177
Availability Retired
346-2 LEGOLAND House with Car
Retail $16.99
Value $708.40
Growth  +4069.5%
Annual growth 6.8%