General ConstructionSoutheast Los AngelesPermit Issued

Home Conversion and ADU Construction at 1228 E 27th St, Southeast Los Angeles

1228-1228 1/2 E 27TH ST, Southeast Los Angeles, 90011

1

What was permitted

Homeowners in Southeast Los Angeles can see the costs associated with converting a duplex into a single-family home on the first floor and adding an Accessory Dwelling Unit (ADU) on the second. This type of project involves significant structural and layout changes to maximize property utility.

This project was issued a permit on June 24, 2026, with an estimated cost of $25,000. While the contractor is not specified, this cost provides a benchmark for similar multi-unit property modifications.

A $25,000 project in Southeast Los Angeles involved converting a duplex to a single-family home with an ADU, offering insight into the cost of multi-unit property enhancements.

2

What it cost

$25,000reported on this filing

Issued

June 24, 2026

Expires

License

B

3

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Filed by West Coast Rivers Construction Co · 3 permits across 2 areas

View the official permit record

Tracking number, work description, cost, and dates

+
Tracking Number25016-20000-36829
Work Permit #
Job Filing Number
Work TypeBldg-Alter/Repair
StatusIssued
Job DescriptionEPLAN:CONVERT (E) DUPLEX TO SFD ON FIRST FLOOR AND ADU ON SECOND FLOOR PER LAMC LAMC12.22A.33(c) and(e). ALL WORK PER ENG.
Floor / Unit
Estimated Cost$25,000
ApprovedDecember 18, 2025
IssuedJune 24, 2026
Expires
BBL
BIN

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Duplex conversionADU constructionSoutheast Los AngelesLos AngelesBuilding alteration$25,000 project cost