Commercial Build-Out Guide

Office Build-Out Low-Voltage Checklist for Los Angeles: Cabling, Cameras and Access Control in One Scope

Low-voltage is the trade that gets called last and blamed first. This checklist puts cabling, cameras and access control on the drawings before framing, shows where each lands in a tenant-improvement schedule, and lists what a general contractor should demand from the low-voltage sub. Innov8av is a California C-10 Electrical contractor (CSLB #1043428) and BSIS Alarm Company Operator (ACO 7755), working across Los Angeles since 2016.

Updated September 2, 2026 11 min read Structured cabling, cameras & access control
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The short answer

Put low-voltage on the drawings before framing, and give it to one sub

In a Los Angeles office build-out, data cabling, security cameras and access control share the same pathways, the same telecom room, the same PoE switches and the same inspection calendar. Bid them as one scope and they get designed together, roughed in during the same window before drywall, and closed out with one test report. Bid them separately and three vendors argue over one J-hook. The rest of this page is the checklist: what to decide at design, what the GC needs to hand over and receive, where each system lands in the schedule, and what Los Angeles actually inspects.

Why one low-voltage scope, not three vendors

A cabling company, a camera company and a door-access company each need the same three things from a build-out: a route from the telecom room to every device, a switch port with enough PoE behind it, and a window in the schedule after framing and before drywall. When three vendors own those things separately, the GC ends up coordinating pathways nobody drew, the electrician pulls power to a room that was sized for one rack and now needs two, and the door hardware arrives without the electrified prep the access-control vendor assumed. When one licensed low-voltage sub owns cabling, cameras and access control, the drop schedule, device schedule and door schedule are produced together, the pathways are sized once, and there is one closeout package.

There is also a licensing reason. Camera and access-control circuits are still electrical work in the eyes of the City. LADBS states a permit is required if the work involves a communication or Class 2 signalling circuit over 30 volts, or under 30 volts but more than 100 VA, or any circuit over 15 volts using more than 25 watts or VA — thresholds that PoE camera and door-controller circuits routinely cross. One sub means one permit conversation instead of three vendors each assuming the other one pulled it.

Where low-voltage lands in a tenant-improvement schedule

The order below is the order that avoids re-work. Every line in the right-hand column is something the low-voltage sub cannot do if the line above it was skipped.

TI phaseLow-voltage work in that phaseWhat must already exist
Design & drawingsDrop schedule, camera schedule, door schedule, riser diagram, telecom-room layout, pathway and sleeve planFurniture plan, door schedule from the architect, IT's switch and firewall plan
PermitLow-voltage / electrical permit application where circuits cross the LADBS thresholds; fire-alarm interface noted on the access-control drawingsStamped drawings, licence and insurance on file with the GC
Pre-framing coordinationMark backbox locations, conduit stubs, sleeves through rated walls, core-drill locations, exterior camera penetrationsFraming layout on the slab, electrical panel and telecom-room locations fixed
Rough-in (after framing, before drywall)Pull horizontal cable, backbone and door loops; set backboxes and rings; mount J-hooks or tray above ceiling; label both endsFraming complete, above-ceiling pathways clear, plenum or riser cable listing confirmed for the space
Above-ceiling inspectionCable support, listing, firestop at every rated penetration (NEC 300.21), separation from powerNothing closed up yet — the inspector has to see it
Trim-out (after paint, before furniture)Terminate jacks and patch panels, mount cameras and readers, install door hardware and controllers, rack and power the telecom roomDoors hung with electrified prep, telecom-room power and cooling live, ceiling grid closed
CommissioningCertify every link, aim and focus cameras, program credentials and schedules, test fire-alarm release on every locked egress doorSwitches on site and configured by IT, fire alarm operational
CloseoutCertification reports, as-builts, labelled port map, camera views, credential export, warranty registrationPunch list signed

The phase that gets missed is above-ceiling inspection. Once the grid tiles are in, nobody wants to lift them again, and a rated wall with an unsealed sleeve through it becomes a problem at the final.

What the GC needs from the low-voltage sub — and what the sub needs back

Hand this to the GC at award

  • Licence and insurance. A CSLB licence whose classification covers the work — the C-10 Electrical classification has no voltage ceiling and encompasses the low-voltage work the C-7 defines — plus a BSIS Alarm Company Operator licence if any alarm work is in scope, and a certificate of insurance naming the GC and owner.
  • Three schedules. Drop schedule (every outlet, its cable count and its patch-panel position), camera schedule (location, mounting height, view, lens, PoE class) and door schedule (every controlled door, its hardware type, reader location, request-to-exit and fire-alarm interface).
  • The backbox and conduit list the electrician needs: single-gang or double-gang rings at each outlet, conduit stubs above ceiling, sleeves through rated and demising walls, exterior penetrations for cameras and readers, and conduit for any run in an exposed or slab-on-grade condition.
  • Telecom-room requirements in writing: dimensions, plywood backboard, dedicated circuits, cooling, bonding point and door hardware (see the next section).
  • Firestop submittals for every rated penetration — a listed through-penetration system, not a tube of red caulk.

The sub needs these back, in this order

  • The furniture plan, because drop counts follow desks. ANSI/TIA-568 recommends a minimum of two telecommunications outlets per work area, and counting after the desks are placed costs a second rough-in.
  • The architect's door schedule and hardware set numbers, so electrified hardware is ordered with the doors rather than retrofitted into them.
  • The IT provider's plan for switches, PoE budget, VLANs and where the carrier demarc is, so the rack is sized for what actually arrives.
  • The fire-alarm contractor's contact, because every electrically locked door in the means of egress has to release on alarm, and that is a two-trade test.

The telecom room: get this right first

Every other item on this page terminates in one room, and it is the room most often designed last. The published guidance is ANSI/TIA-569, and the items below are the ones that get missed in Los Angeles TIs.

  • Backboard. TIA-569 calls for at least two walls covered with rigidly fixed 20 mm (¾ in) A-C plywood, 2.44 m (8 ft) high, either fire-retardant-rated or painted with two coats of fire-retardant paint. Do not paint over the fire-rating stamp on rated plywood; the inspector needs to see it.
  • Power. Dedicated circuits for the rack, on a panel the IDF does not share with the coffee machine, and a UPS sized for the switches and controllers that must ride through a flicker — door controllers in particular, because a power blip on a fail-safe maglock is an unlocked door.
  • Cooling. Switches and NVRs run continuously; a closet on the building's after-hours HVAC schedule cooks them every weekend. Ask for 24-hour cooling or a dedicated split.
  • Bonding. A telecommunications grounding busbar bonded to the building's electrical ground per ANSI/TIA-607, with the rack, cable tray and backboard equipment bonded to it.
  • Location. Central to the floor it serves so horizontal runs stay inside the 100 m channel, away from water and sprinkler mains, with a lockable door and no shared use as a janitor's closet.

Cabling scope checklist

  • Category. For a new build-out, Category 6A is the default: it carries 10 Gbps to 100 m and runs cooler under PoE loads. The distance, heat and multi-gig details are in the cabling-versus-IT guide; the decision here is simply that new plant should not be built to a limit you will hit in three years.
  • Listing. Above a drop ceiling used as a return-air plenum, the electrical code requires plenum-rated (CMP) cable; between floors, riser-rated (CMR) or better. Ask for the listing on the bid, not on the invoice.
  • Counts. Two outlets per work area minimum, plus cabling to every camera, reader, door controller, access point, printer, conference display and the Wi-Fi survey's AP locations. Access points and cameras are the lines most often left off a drop schedule.
  • Pathways. J-hooks or tray sized for growth, separation from lighting and power, sleeves through every rated and demising wall, and conduit to any exterior device.
  • Firestop. Every penetration of a fire-resistance-rated wall, floor or ceiling firestopped with an approved method to maintain the rating (NEC 300.21), using a listed through-penetration system.
  • Labelling and test. Both ends labelled to a single scheme, and per-link certification against the TIA category limits — not a wiremap — with the reports handed over at closeout and the manufacturer warranty registered.

Camera scope checklist

  • Zones before counts. Entrances and reception at head height, corridors and stairwell doors, server or telecom room, loading and receiving, cash or inventory areas, parking under the tenant's control. Quote against a zone list so competing bids describe the same system.
  • Power and storage. Every camera on the PoE budget, every stream on the storage calculation, and the NVR in the telecom room on the UPS. The maths is in the commercial CCTV guide.
  • Exterior. Conduit and a weather-rated box at every exterior camera, decided at pre-framing, because a core drill through a finished façade is the most expensive hole in the project.
  • Privacy and law. No cameras in restrooms, locker rooms or changing areas, and no audio unless the all-party-consent rule has been addressed — the California statutes are summarised in the security camera laws guide.
  • Federal work. If the tenant holds or bids federal contracts, specify cameras outside the NDAA Section 889 covered-equipment list from the start.

Access control scope checklist

Access control is where a build-out most often fails inspection, because it touches the doors, the fire alarm and the egress code at the same time.

  • Door by door. For each controlled door: electric strike, electrified lever or magnetic lock; reader side and free-egress side; request-to-exit device; door-position switch; and whether it sits in the means of egress.
  • Egress rules. Electrically locked doors in the means of egress are governed by Chapter 10 of the California Building Code. For the sensor-release arrangement, the code requires a manual unlocking device located 40 to 48 inches above the floor and within 5 feet of the secured door, and activation of the building's sprinkler or fire-detection system must unlock the door automatically. Loss of power to the lock must also unlock it. The exact section numbers changed between code cycles, so the drawings should cite the edition in force at permit.
  • ADA reach. Under the 2010 ADA Standards (308.2.1), the operable part of an unobstructed forward-reach control sits between 15 and 48 inches above the finish floor. Card readers and keypads are operable parts — mount them inside that band.
  • Fire-alarm interface. A release relay from the fire-alarm panel to every locked egress door, tested with the fire-alarm contractor present. LAFD's published requirement for locked elevator lobbies, for example, forbids activating the locking system until both the Building & Safety life-safety electrical inspector and the fire inspector have approved it — plan the same sequence for any special locking arrangement.
  • Credentials. Decide the credential type — card, fob, mobile or PIN — before the readers are ordered, and decide who administers it. Cloud-hosted and on-premises platforms each have a case; the comparison is on the cloud vs on-prem page.
  • Power. Controllers and lock power on the UPS, with fail-safe or fail-secure chosen per door and documented, because the fire marshal will ask.

What to budget

ScopePlanning range (Los Angeles)What moves it
Structured cabling$3,000–$30,000+Drop count, Cat6 vs Cat6A, plenum listing, backbone fiber, telecom-room build
Commercial cameras$1,500–$30,000+Camera count and resolution, exterior conduit, retention period, NVR vs cloud
Access control$3,000–$40,000+Door count, hardware type, fire-alarm interface, credential platform, integration with cameras

Bid as one scope, the shared items — pathways, telecom room, PoE switches, UPS, permit, inspection visits and closeout — are priced once. The on-site assessment is free, and it is the only honest way to turn these bands into a number for a specific suite.

The five expensive mistakes

  1. Drywall before rough-in. The single most common one. Cable that should have been pulled through open studs is fished through finished walls at several times the labour.
  2. No sleeves through the demising wall. Every later cable is a new rated penetration, a new firestop and a new inspection.
  3. Doors ordered without electrified prep. Retrofitting a strike or a lever into a hung door is slow, and a maglock added afterwards has to meet the egress rules above anyway.
  4. Telecom room on the wrong circuit or the wrong HVAC schedule. It shows up as intermittent faults six months in, and it is the hardest thing on this list to fix after occupancy.
  5. No closeout package. Without certification reports, a port map and as-builts, the next tenant improvement starts with a survey you already paid for once.

Why Innov8av for the whole scope

Innov8av holds a California C-10 Electrical contractor licence, CSLB #1043428 — the classification has no voltage ceiling and encompasses the low-voltage work the C-7 defines, so one licence covers the cabling, the cameras, the door controllers and the electrical work around them. It also holds a BSIS Alarm Company Operator licence, ACO 7755, the separate licence California requires for alarm work. Both numbers are verifiable in the state's public lookups.

Working across Los Angeles since 2016, insured and bonded, bilingual in English and Spanish, rated 5.0/5 across 22 verified Reviews.io reviews with a BBB A+ rating. We deliver structured cabling, commercial cameras and access control as one coordinated scope with one drop schedule, one permit conversation and one closeout package — and we will tell a GC plainly when a door, a wall or a room is going to be a problem before the drywall goes up.

Planning a build-out? Send us the drawings.

Send the floor plan and door schedule and we will return a drop schedule, camera schedule and door schedule you can hand to the GC. Free on-site assessment across Los Angeles County.

CSLB #1043428 (C-10)BSIS ACO 7755Since 2016Bilingual EN/ES

Keep reading

Structured cabling in Los Angeles
Infrastructure

Structured Cabling in Los Angeles

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Cat6, Cat6A and fiber for offices and multi-tenant buildings — certified and warranty-registered.
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Access control in Los Angeles
Access

Access Control Systems in Los Angeles

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Readers, controllers, electrified hardware and fire-alarm interface, inspected and commissioned.
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Commercial CCTV installation
Cameras

Commercial CCTV Installation

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Permit thresholds, plenum cable, PoE budget and the ten-line quote checklist for business camera systems.
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Frequently Asked Questions

When should the low-voltage contractor be brought into an office build-out?

At design, before the drawings are issued for permit. That is when drop counts, camera and reader locations, sleeves, conduit stubs and telecom-room requirements can still be drawn rather than improvised. The physical work happens in two windows: rough-in after framing and before drywall, and trim-out after paint. A low-voltage sub brought in after drywall is fishing cable through finished walls.

Does a Los Angeles office build-out need a permit for data cabling, cameras and access control?

It depends on the circuits and the jurisdiction. LADBS states a permit is required if the work involves a communication or Class 2 signalling circuit over 30 volts, or under 30 volts but more than 100 VA, or any circuit over 15 volts using more than 25 watts or VA — thresholds PoE camera and door-controller circuits commonly cross. Much of Los Angeles County is not the City of LA, so confirm with the local building department. Electrically locked egress doors are also subject to inspection before they may be activated.

What does a general contractor need from the low-voltage sub?

A licence whose classification covers the work, a certificate of insurance, three schedules (drops, cameras, doors), a backbox and conduit list for the electrician, written telecom-room requirements, firestop submittals for rated penetrations, and a closeout package with certification reports, as-builts and a port map. In return the sub needs the furniture plan, the architect's door schedule, the IT provider's switch plan and the fire-alarm contractor's contact.

Should a new office be cabled with Cat6 or Cat6A?

For new plant, Category 6A. It carries 10 Gbps to the full 100 m channel and runs cooler under PoE loads than Category 6, which supports 10 Gbps only to 37–55 m depending on alien crosstalk. The premium is small against the cost of opening finished ceilings later. Above a return-air plenum ceiling the cable must be plenum-rated regardless of category.

What are the rules for electrically locked doors in an office?

Doors in the means of egress are governed by Chapter 10 of the California Building Code. Sensor-release arrangements require a manual unlocking device 40 to 48 inches above the floor within 5 feet of the door, and the door must unlock automatically on fire-alarm or sprinkler activation and on loss of power. Card readers, as operable parts, must sit within the ADA reach range of 15 to 48 inches. The fire-alarm release is tested with the fire-alarm contractor present, and special locking arrangements are inspected before they go live.

How much should we budget for low-voltage in an office build-out in Los Angeles?

As planning ranges: structured cabling $3,000–$30,000+, commercial cameras $1,500–$30,000+, access control $3,000–$40,000+. Drop count, door count, camera count, plenum listing and the telecom-room build move the number most. Bidding the three as one scope prices the shared pathways, switches, UPS, permit and closeout once. Innov8av's on-site assessment is free.

Related: Structured Cabling Cost · Low-Voltage Contractor in Los Angeles · Office Access Control · Commercial Low-Voltage Hub

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