| 1835 |
Avon became a General Law Township |
| 1837 |
Michigan became a State |
| 1869 |
Rochester (within Avon Township) incorporated as a Village |
| 1920 |
The Village of Rochester annexed portions of Avon Township (parts of Sections 10, 11 & 15) |
| 1948 |
Voters approved charter status for Rochester under the Home Rule Act |
| 1958 |
August 5 Election: Voters rejected by a 3-to-1 vote Rochester's annexation of portions of Avon Township (parts of Sections 2-4, 9-11 & 14-16) |
| 1963 |
February 18 Election: Voters rejected by a 4-to-1 vote Avon's annexation and incorporation of part of Section 10, all of Sections 11-14 & the Village of Rochester |
| 1966 |
September 20 Election: Rochester voters approved city hood (effective 2/13/67), elected a charter commission, adopted a charter. [From 1835 to 2/13/67, Rochester property owners paid Avon Township taxes on real & personal property.] |
| 1967 |
January 9: Avon Township petition filed for city hood. |
| 1968 |
January 15: Avon voters approved city hood, elected first charter commission. |
| 1969 |
March 10: Proposed charter defeated by nearly 900 votes. |
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September 16: Second charter commission elected. |
| 1970 |
May 4: Second proposed charter defeated by 27 votes. |
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November 3: Third charter commission elected. |
| 1971 |
September 13: Third proposed charter defeated by about 600 votes. |
| |
September 29: Rochester petitioned to annex all of Avon Township. (Petition unanimously denied by Michigan Boundary Commission) |
| 1972 |
Petitions filed for consolidation of Avon Township and the City of Rochester |
| 1974 |
April 9: Consolidation vote defeated by 350 votes in Avon Township and approved by 4 votes in Rochester. - Defeated |
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May 2: Rochester petition to annex 2.2 sq. mi. of Avon Township was approved by Michigan Boundary Commission |
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June 28 & July 1: Petitions filed to incorporate Avon as a city. |
| 1978 |
August 28: Avon becomes Charter Township |
| 1981 |
November 25: Avon ordered by court to surrender property annexed on 5/2/74 |
| 1981-82 |
Greater Rochester Chamber of Commerce appointed Consolidation Study Committee |
| 1983 |
Citizens for Consolidated Government petition drive |
| 1983-84 |
Avon drafts city charter; voters approve incorporation as the Home Rule City of Rochester Hills (effective 11/20/84) |
| 1985 |
State Boundary Commission gathers information on proposed consolidation of Rochester/Rochester Hills |
| 1986 |
February 18: Boundary Commission approves proposed consolidation, paving the way for a YES/NO referendum |
| 1987 |
May 5: Consolidation Vote defeated by 1982 votes (65% NO) in Rochester Hills and defeated by 1015 votes (85% NO) in Rochester |
| 1991 |
November 5: Rochester Hills voters reject proposal to change from Strong Mayor/Council form of government to Council/Manager form - defeated by 4255 votes (66%NO) |
