Stephen Keating travelled from his home in Birmingham to burgle properties at The Elms, in Torksey, on the night of 4-5th October this year.
He stole money and items worth a combined £4,500 from properties at the village, including jewellery which carried significant sentimental value for their owners.
The residents of the burgled properties at the retirement village, a caravan park for those aged 50 and over, were not at home when the burglaries took place.
Keating, of Frances Road, Bournville, Birmingham, admitted two charges of burglary and another charge of burglary with intent to steal.
Pc Donnah Thompson, who led the investigation, said: “This was a significant sentence which reinforces our message that we will investigate burglaries robustly and bring offenders to justice.
“We have also returned a significant amount of sentimental property to the victims, which hopefully will have brought some comfort after such an upsetting incident.
“I also want to pay tribute to the member of the public who contacted us to report a vehicle acting suspiciously in the area. Their information helped us to arrest Keating and, ultimately, secure a conviction.”