Palace

All levels ?Romans

Lvl						?	CP?	Expansion slots?
1	550	800	750	250	0:00:50	+1 (1)	6	0
2	705	1,025	960	320	0:01:01	+1 (2)	7	0
3	900	1,310	1,230	410	0:01:14	+1 (3)	9	0
4	1,155	1,680	1,575	525	0:01:29	+1 (4)	10	0
5	1,475	2,145	2,015	670	0:01:46	+1 (5)	12	0
6	1,890	2,750	2,575	860	0:02:06	+1 (6)	15	0
7	2,420	3,520	3,300	1,100	0:02:29	+1 (7)	18	0
8	3,095	4,505	4,220	1,405	0:02:56	+1 (8)	21	0
9	3,965	5,765	5,405	1,800	0:03:27	+1 (9)	26	0
10	5,075	7,380	6,920	2,305	0:04:03	+1 (10)	31	1 +1
11	6,495	9,445	8,855	2,950	0:04:45	+2 (12)	37	1
12	8,310	12,090	11,335	3,780	0:05:33	+2 (14)	45	1
13	10,640	15,475	14,505	4,835	0:06:29	+2 (16)	53	1
14	13,615	19,805	18,570	6,190	0:07:35	+2 (18)	64	1
15	17,430	25,355	23,770	7,925	0:08:50	+2 (20)	77	2 +1
16	22,310	32,450	30,425	10,140	0:10:18	+2 (22)	92	2
17	28,560	41,540	38,940	12,980	0:12:00	+2 (24)	111	2
18	36,555	53,170	49,845	16,615	0:13:58	+2 (26)	133	2
19	46,790	68,055	63,805	21,270	0:16:16	+2 (28)	160	2
20	59,890	87,110	81,670	27,225	0:18:55	+2 (30)	192	3 +1

Build times with a level 1 Main Building on this x100 world (Gold boosts and artifacts shorten them further). Population in brackets is the building's total at that level.