# Building permits in Los Angeles County 91711 3 permits in the last 90 days. The newest, Aug 14: Changing gas pipeline from house to meter, at 2916 N Mountain Avenue. | Date | Address | Type | Work | Cost | Permit | |---|---|---|---|---|---| | Aug 14, 2026 | [2916 N Mountain Avenue](https://nearbypermits.com/los-angeles-county/address/2916-n-mountain-avenue/) | Plumbing | Changing gas pipeline from house to meter. | Not listed | [UNC-PLMB260814003567](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB260814003567/) | | Jul 21, 2026 | [3204 N Mountain Avenue](https://nearbypermits.com/los-angeles-county/address/3204-n-mountain-avenue/) | Mechanical (HVAC) | Mech for convert (E) pool house to 477 sf ADU | Not listed | [UNC-MECH260717003034](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260717003034/) | | Jul 21, 2026 | [3204 N Mountain Avenue](https://nearbypermits.com/los-angeles-county/address/3204-n-mountain-avenue/) | Electrical | Elec for convert (E) pool house to 477 sf ADU | Not listed | [UNC-ELEC260716007298](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260716007298/) | | Jul 9, 2026 | [425 E Baseline Road](https://nearbypermits.com/los-angeles-county/address/425-e-baseline-road/) | Electrical | 125a Subpanel | Not listed | [UNC-EXPR260709002046](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260709002046/) | | Jun 22, 2026 | [425 E Baseline Road](https://nearbypermits.com/los-angeles-county/address/425-e-baseline-road/) | Solar | 11.25kw 25 modules 2 inverters 2 ESS new 225A Main panel with 200A Main Breaker 225A Bus Bar | Not listed | [UNC-EXPR260622001873](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260622001873/) | | Jun 17, 2026 | [885 E Baseline Road](https://nearbypermits.com/los-angeles-county/address/885-e-baseline-road/) | Solar | 9.020 Kw dc / 7.678 kw ac (8.235 cec kw ac) module: (22) qcells q.peak duo blk ml-g10.c1+/ac 410 inverter(s): (22) qcells q.mi.349b-g1 ESS size: 11.5kw ac, 13.5kwh rated ESS model(s): (1) tesla powerwall 3 1707000-21-y (13.5kwh rated) | Not listed | [UNC-EXPR260617001838](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260617001838/) | | Jun 15, 2026 | [3059 Rockmont Avenue](https://nearbypermits.com/los-angeles-county/address/3059-rockmont-avenue/) | Grading | demolition of inground swimming pool. certified fill 75 cy. compaction report will be provided upon final completion | $5,500 | [UNC-GRAD260602000277](https://nearbypermits.com/los-angeles-county/permit/UNC-GRAD260602000277/) | | Jun 15, 2026 | [3059 Rockmont Avenue](https://nearbypermits.com/los-angeles-county/address/3059-rockmont-avenue/) | Demolition | demolition of inground swimming pool. certified fill 75 cy. compaction report will be provided upon final completion | $5,500 | [UNC-BLDG260527000934](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDG260527000934/) | | Jun 9, 2026 | [523 W Richbrook Drive](https://nearbypermits.com/los-angeles-county/address/523-w-richbrook-drive/) | Mechanical (HVAC) | Install exhaust fan like for like | Not listed | [UNC-MECH260602002365](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260602002365/) | | Jun 9, 2026 | [523 W Richbrook Drive](https://nearbypermits.com/los-angeles-county/address/523-w-richbrook-drive/) | Electrical | Install exhaust fan like for like | Not listed | [UNC-ELEC260604005658](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260604005658/) | | Jun 9, 2026 | [523 W Richbrook Drive](https://nearbypermits.com/los-angeles-county/address/523-w-richbrook-drive/) | Alteration or repair | Blown in attic insulation 1485 sqft R40, wall insulation 1142 sqft R13 | $6,000 | [UNC-BLDR260602005436](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260602005436/) | | May 5, 2026 | [4717 Webb Canyon Road](https://nearbypermits.com/los-angeles-county/address/4717-webb-canyon-road/) | Solar | Install a roof-mounted photovoltaic (PV) system and energy storage system consisting of a 19.175 kW DC (17.346 kW CEC AC) solar array with 59 Yingli Solar modules, paired with a Sol-Ark 12K inverter and SMA Sunny Boy 6.0 inverter. The system includes a 20 kWh Fortress battery, energy system disconne | Not listed | [UNC-EXPR260430001334](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260430001334/) | | Apr 10, 2026 | [3016 N Mountain Avenue](https://nearbypermits.com/los-angeles-county/address/3016-n-mountain-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 26 sqs. House and attached garage. No flat area. (For permitted areas only) | $24,300 | [UNC-BLDR260409003646](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260409003646/) | | Apr 2, 2026 | [2950 N Mountain Avenue](https://nearbypermits.com/los-angeles-county/address/2950-n-mountain-avenue/) | Solar | 10 Modules - roof mount - 4.3 kwdc, 11.500 kwac (N) 8- qcells q.tron blk m-g2.h+ 430 (430w) (N) 3- tesla: mci-2 (rapid shutdown device) (N) 1- tesla powerwall 3 11.5 kw / 13.5 kwh inverter / energy storage system (1707000-21-x) inverter (N) 1 - 60a non-fused ac disconnect eaton dg222urb (N) 1 - tesl | Not listed | [UNC-EXPR260402000999](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260402000999/) | | Mar 18, 2026 | [4549 Live Oak Drive](https://nearbypermits.com/los-angeles-county/address/4549-live-oak-drive/) | Solar | 14.28 Kw 34 panels 27 kwh energy storage system | $56,159 | [UNC-SOLR260304000357](https://nearbypermits.com/los-angeles-county/permit/UNC-SOLR260304000357/) | | Mar 18, 2026 | [4549 Live Oak Drive](https://nearbypermits.com/los-angeles-county/address/4549-live-oak-drive/) | Electrical | (2) Tesla Powerwall 3 ENERGY STORAGE SYSTEM, (2) 125A subpanel, related to SOLR260304000357 | $56,159 | [UNC-ELEC260305002247](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260305002247/) | | Feb 24, 2026 | [4549 Live Oak Drive](https://nearbypermits.com/los-angeles-county/address/4549-live-oak-drive/) | Electrical | 2 Tesla Ess, related to SOLR251216001864. (Cancelled permit per owners request. Refer to files for cancellation letter) | $59,000 | [UNC-ELEC260202001135](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260202001135/) | | Feb 10, 2026 | [2934 Rockmont Avenue](https://nearbypermits.com/los-angeles-county/address/2934-rockmont-avenue/) | Roofing | Garage only, tear off existing roof, install (5) sqaures of comp shingles crrc# 0668-0129. Main house on a separate permit. (Permitted areas only) | $5,000 | [UNC-BLDR260210001411](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260210001411/) | | Feb 10, 2026 | [2934 Rockmont Avenue](https://nearbypermits.com/los-angeles-county/address/2934-rockmont-avenue/) | Roofing | House only, tear off existing roof, install (14) sqaures of comp shingles crrc# 0668-0129. Detached garage on a separate permit. (Permitted areas only) | $7,500 | [UNC-BLDR260210001410](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260210001410/) | | Feb 4, 2026 | [4111 Mount Baldy Road](https://nearbypermits.com/los-angeles-county/address/4111-mount-baldy-road/) | Plumbing | Plumbing for interior remodel and addition. | $372,000 | [UNC-PLMB260204000624](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB260204000624/) | | Feb 4, 2026 | [4111 Mount Baldy Road](https://nearbypermits.com/los-angeles-county/address/4111-mount-baldy-road/) | Mechanical (HVAC) | Mechanical for interior remodel and addition | $372,000 | [UNC-MECH260204000645](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260204000645/) | | Feb 4, 2026 | [4111 Mount Baldy Road](https://nearbypermits.com/los-angeles-county/address/4111-mount-baldy-road/) | Electrical | Electrical for interior remodel and addition. | $372,000 | [UNC-ELEC260204001240](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260204001240/) | | Feb 4, 2026 | [415 E Baseline Road](https://nearbypermits.com/los-angeles-county/address/415-e-baseline-road/) | Alteration or repair | Tearoff existing tile and replace plywood as needed. Install 2 layers astm # 30lb and reinstall same tile. Total of 20 sqs. House and attached garage. Tile reset. | $13,500 | [UNC-BLDR260202001139](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260202001139/) | | Jan 29, 2026 | [721 Calspar Street](https://nearbypermits.com/los-angeles-county/address/721-calspar-street/) | Solar | To install a new 6.880kwdc roof mounted PV system with 13.500kwh energy storage system, (16) solar modules, (6) mid-circuit interrupters, (1) tesla powerwall 3 1707000-21-y with 11.500kwintegrated inverter (240v), (1) ESS disconnect switch, (1) tesla backup switch. | Not listed | [UNC-EXPR260129000262](https://nearbypermits.com/los-angeles-county/permit/UNC-EXPR260129000262/) | | Jan 14, 2026 | [521 E Baseline Road](https://nearbypermits.com/los-angeles-county/address/521-e-baseline-road/) | Electrical | MPU 225A Service with 200A Main Breaker | Not listed | [UNC-ELEC260108000285](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260108000285/) | More: https://nearbypermits.com/los-angeles-county/zip/91711/?page=2 ## Zoning requests in 91711 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 18:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map and full list of the 3 permits in Los Angeles County 91711 from the last 90 days: https://nearbypermits.com/los-angeles-county/zip/91711/