# Building permits in Los Angeles County 91724 62 permits in the last 90 days. The newest, Oct 14: Proposed (N) 1,250 sf pool and (N) 120 sf spa, at 20779 E Mesarica Road. | Date | Address | Type | Work | Cost | Permit | |---|---|---|---|---|---| | Oct 14, 2026 | [20779 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/20779-e-mesarica-road/) | Pool or spa | Proposed (N) 1,250 sf pool and (N) 120 sf spa | $85,000 | [UNC-PLSP250101000001](https://nearbypermits.com/los-angeles-county/permit/UNC-PLSP250101000001/) | | Oct 14, 2026 | [21163 E Nubia Street](https://nearbypermits.com/los-angeles-county/address/21163-e-nubia-street/) | Electrical | 200amp Main Panel Upgrade. | Not listed | [UNC-ELEC261008010575](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC261008010575/) | | Oct 14, 2026 | [2301 S Buenos Aires Drive](https://nearbypermits.com/los-angeles-county/address/2301-s-buenos-aires-drive/) | Alteration or repair | R38 insulation blow in in attic SQFT 2500 | $5,000 | [UNC-BLDR261008009985](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR261008009985/) | | Oct 14, 2026 | [3360 N San Joaquin Road](https://nearbypermits.com/los-angeles-county/address/3360-n-san-joaquin-road/) | Addition | (N) 393 SF Attached Addition to (E) SFR for A New (Master Bedroom/Bathroom/Closed). 190 SF New Patio Cover Attached to Addition | $90,000 | [UNC-BLDR260421004045](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260421004045/) | | Oct 14, 2026 | [20779 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/20779-e-mesarica-road/) | New building | Proposed (N) 220 sf pool house | $42,900 | [UNC-BLDR260121000709](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260121000709/) | | Oct 8, 2026 | [21140 E Covina Hills Road](https://nearbypermits.com/los-angeles-county/address/21140-e-covina-hills-road/) | Electrical | Elec for convert (E) attached garage to (N) 389 sf jadu (studio, 1 bath) | $100,000 | [UNC-ELEC261008010546](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC261008010546/) | | Oct 8, 2026 | [21140 E Covina Hills Road](https://nearbypermits.com/los-angeles-county/address/21140-e-covina-hills-road/) | Alteration or repair | Convert (E) attached garage to (N) 389 sf jadu (studio, 1 bath) | $100,000 | [UNC-BLDR250723008902](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR250723008902/) | | Oct 8, 2026 | [20963 E Covina Boulevard #A](https://nearbypermits.com/los-angeles-county/address/20963-e-covina-boulevard-%23a/) | Alteration or repair | Tear off existing (1) layer of BUR. Replace sheathing as needed. Install CRRC # 0676-0001a GAF EverGuard® TPO (White) W/ SRI OF 92. Total of 70 sqs. (For permitted areas only) | $55,000 | [UNC-BLDF261007000444](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDF261007000444/) | | Oct 5, 2026 | [21132 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/21132-e-mesarica-road/) | Plumbing | To final expired plumbing permit plmb221020004172 for addition. | $390,000 | [UNC-PLMB261005004352](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB261005004352/) | | Oct 5, 2026 | [21132 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/21132-e-mesarica-road/) | Mechanical (HVAC) | To final expired mechanical permit mech221020004462 for addition. | $390,000 | [UNC-MECH261005004046](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH261005004046/) | | Oct 5, 2026 | [21132 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/21132-e-mesarica-road/) | Mechanical (HVAC) | To final expired mechanical permit MECH230208000506 for kitchen remodel. | $32,000 | [UNC-MECH261005004044](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH261005004044/) | | Oct 5, 2026 | [20901 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/20901-e-mesarica-road/) | Solar | PV Roof Mount: 28 Modules; 12.04kW; Existing Main 175A; Tesla PW 3 W/ Expansion Unit & Back-Up Switch; PCS 160A | Not listed | [UNC-EXPR261005002906](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR261005002906/) | | Oct 5, 2026 | [21132 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/21132-e-mesarica-road/) | Electrical | To final expired electrical permit elec221020008914 for addition and upgrade man service panel | $390,000 | [UNC-ELEC261005010388](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC261005010388/) | | Oct 5, 2026 | [21132 E Mesarica Road](https://nearbypermits.com/los-angeles-county/address/21132-e-mesarica-road/) | Alteration or repair | To final expired building permit BLDR230208001102 for Proposed Patio 472 Sf. remodel kitchen 200sf. | $32,000 | [UNC-BLDR261005009816](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR261005009816/) | | Oct 5, 2026 | [4920 Glen Arden Avenue](https://nearbypermits.com/los-angeles-county/address/4920-glen-arden-avenue/) | Alteration or repair | Re roof house and garage attached 24 sqs Tear off existing roof Replace wood damage as needed Install comp shingles class A cool roof CRRC 0890-0032 PERMITTED AREAS ONLY | $14,000 | [UNC-BLDR261001009712](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR261001009712/) | | Oct 2, 2026 | [4707 N Westridge Avenue](https://nearbypermits.com/los-angeles-county/address/4707-n-westridge-avenue/) | Electrical | Upgrade main service panel to 200 amps | Not listed | [UNC-ELEC261002010333](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC261002010333/) | | Sep 28, 2026 | [20138 E Stephanie Drive](https://nearbypermits.com/los-angeles-county/address/20138-e-stephanie-drive/) | Plumbing | Install 2 way cleanout in front yard | Not listed | [UNC-SEWR260925003009](https://nearbypermits.com/los-angeles-county/permit/UNC-SEWR260925003009/) | | Sep 25, 2026 | [5002 N Treanor Avenue](https://nearbypermits.com/los-angeles-county/address/5002-n-treanor-avenue/) | Alteration or repair | Tearoff existing roof and replace plywood as needed. INSTALL CRRC # 0890-0033 Owens Corning Roofing and Asphalt, LLC TruDefinition® Duration® Cool Plus Golden Meadow W/ SRI OF 22. Total of 26 sqs. House and attached garage. No flat area. (For permitted areas only) | $13,000 | [UNC-BLDR260922009359](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260922009359/) | | Sep 25, 2026 | [3604 Bender Avenue](https://nearbypermits.com/los-angeles-county/address/3604-bender-avenue/) | Alteration or repair | Tearoff existing roof and replace plywood as needed. INSTALL CRRC # 0890-0030 Owens Corning Roofing and Asphalt, LLC TruDefinition® Duration® Cool Plus Copper Trail W/ SRI OF 22. Total of 37 sqs. House and attached garage. No flat area. (For permitted areas only) | $21,000 | [UNC-BLDR260921009325](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260921009325/) | | Sep 22, 2026 | [3314 Rancho Rio Bonita Road](https://nearbypermits.com/los-angeles-county/address/3314-rancho-rio-bonita-road/) | Plumbing | Install new sewer line connection to new septic tank. House remodel permit. Permit number: unc-bldr250328003369:proposed (N) 283 sf addition, (N) 95 sf front covered porch, remove (E) fireplace, approx. 400 Sf interior remodel | Not listed | [UNC-SEWR260908002719](https://nearbypermits.com/los-angeles-county/permit/UNC-SEWR260908002719/) | | Sep 17, 2026 | [19617 Greenhaven Street](https://nearbypermits.com/los-angeles-county/address/19617-greenhaven-street/) | Alteration or repair | Remove and replace 4 windows with no change to size or location. "Replacement windows with exact same size, type, and location with a U-factor of 0.30 and SHGC factor of 0.23." | $4,310 | [UNC-BLDR260909008894](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260909008894/) | | Sep 17, 2026 | [2307 Coronet Court](https://nearbypermits.com/los-angeles-county/address/2307-coronet-court/) | Alteration or repair | Combination permit: legalize conversion of (E) 534 SQ FT garage to habitable space for (E) SFR (1 bedroom, 1 office, 1 bathroom, and storage room). (N) 206 SQ FT Front porch. (N) 187 SQ FT Rear covered patio. (N) 255 SQ FT Side covered patio. Install 200 amp panel | $95,500 | [UNC-BLDR241217012490](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR241217012490/) | | Sep 16, 2026 | [4514 N Sunflower Avenue #A](https://nearbypermits.com/los-angeles-county/address/4514-n-sunflower-avenue-%23a/) | Mechanical (HVAC) | Mechanical for detached ADU #a | $230,000 | [UNC-MECH260916003812](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260916003812/) | | Sep 16, 2026 | [4514 N Sunflower Avenue #B](https://nearbypermits.com/los-angeles-county/address/4514-n-sunflower-avenue-%23b/) | Mechanical (HVAC) | Mechanical for detached ADU #b | $230,000 | [UNC-MECH260916003811](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260916003811/) | | Sep 15, 2026 | [4833 Bender Avenue](https://nearbypermits.com/los-angeles-county/address/4833-bender-avenue/) | Electrical | Replace heating and air conditioner | Not listed | [UNC-ELEC260915009549](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260915009549/) | More: https://nearbypermits.com/los-angeles-county/zip/91724/?page=2 ## Zoning requests in 91724 We don't list zoning cases for Los Angeles County yet. Look them up on the county's Regional Planning Commission page: https://planning.lacounty.gov/public-hearings-and-meetings/regional-planning-commission/ --- Source: LA County Public Works, Building and Safety permit data (https://www.arcgis.com/home/item.html?id=b2a835d49c194029a525fb60cf24aa59). Checked 2026-10-17 01:40 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map and full list of the 62 permits in Los Angeles County 91724 from the last 90 days: https://nearbypermits.com/los-angeles-county/zip/91724/