Low Voltage in Occupied Buildings: Phasing an Affordable or Senior Housing Rehab

What changes when residents stay in the building#

On a vacant building the low voltage contractor owns the schedule inside its scope. Cable is pulled floor by floor, rooms are built out, systems are commissioned, and nobody is living in the middle of it. On an occupied rehab the building keeps doing its job every day: residents are in their units, the entry system is in use, and in senior housing the call system has to stay live. Every task has to be planned around that.

The differences are practical rather than technical. What changes is the sequence, the notice, the hours, the protection and the paperwork. On an occupied rehab, unit access is the schedule, and everything else is planned around it.

Two projects shape how we approach this work. Little Tokyo Towers in Los Angeles was a multifamily renovation, occupied throughout, where we installed property-wide Wi-Fi, CATV distribution, surveillance cameras and access control. Horton House in San Diego was a senior housing renovation, also occupied, with the same systems plus a nurse call system. Both were delivered with residents in place and the building operating.

Resident notice and entry: the owner’s obligations#

Entering an occupied unit is governed by California Civil Code section 1954. In general terms, a landlord may enter a dwelling unit to make necessary or agreed repairs, alterations or improvements, must give the resident reasonable notice in writing, and 24 hours is presumed reasonable unless there is evidence to the contrary. The notice states the date, the approximate time and the purpose. Entry is during normal business hours unless the resident agrees otherwise. The statute also describes how notice may be delivered, including personal delivery, leaving it at the unit, or mailing it well in advance.

That is a description, not legal advice. The notice obligation belongs to the owner and its property manager, and many affordable and senior housing programs, local rent ordinances and lease forms require more than the statute does: longer notice, translated notices, specific forms, or a tenant meeting before work starts. The owner’s counsel and relocation consultant decide what applies. What we supply is the input those notices need: a unit-by-unit schedule with the work to be done, the expected time in the unit, and any service interruption.

The habit that makes this work is a rolling two-week lookahead shared with property management. Units scheduled for the following week are confirmed on Friday, notices go out with time to spare, and the crew shows up with a list that matches the notices. Units added or moved after notice has gone out receive a new notice before entry.

Scheduling unit access by stack and by floor#

In a multifamily building the efficient unit of work is the stack: the vertical column of units that share a riser. New CATV, data and nurse call cabling arrives in each unit from the riser closet on that floor or from a stack running through the same location in each unit. Scheduling a stack on one day lets the crew open one riser, pull to every unit in the column, and close the riser once.

The floor is the second unit of work. Corridor ceiling work, camera and access point mounting, and the closet work for that floor are scheduled together so the corridor is disturbed once rather than four times.

A typical unit visit for a Wi-Fi, CATV and access control rehab is a single visit: locate the existing outlet, pull or fish the new cable, terminate, test, mount any in-unit device, and clean up. The entry notice should state the expected time in the unit. The crew lead carries the schedule and the property manager’s contact number, logs the time in and out of each unit, and notes anything unusual (a resident who asked to be present, a pet, a unit that could not be entered).

Corridors, risers, dust and noise while the building runs#

Corridor ceilings in older affordable housing are often hard lid rather than accessible tile, which means cutting access, and they are often the only path between the riser closet and the units. The rules we work to: corridors stay passable at full width during work, with no cable on the floor and no ladders left unattended; work in a corridor is finished and the ceiling closed by the end of the shift; and any penetration through a rated wall or floor is firestopped the same day with a listed system, not left for a later punch list.

Risers in occupied buildings frequently carry live CATV, telephone and sometimes the old nurse call. New cable is placed alongside the old, labeled, and tied in only at cutover. Nothing existing is cut until the new path has been tested end to end.

Dust and noise are the two complaints that reach the owner fastest. Core drilling and hammer drilling are scheduled in a window agreed with property management, announced in the notice, and kept short. Vacuum attachments and drop cloths are standard in units and corridors. In senior housing the quiet hours are wider than in general multifamily and the schedule respects them.

Resident property is protected the same way on every job: floor protection from the door to the work area, furniture moved only with the resident’s agreement and moved back, photographs of the work area before and after when property management asks for them, and an escort from the property whenever its policy requires one.

Senior housing: vulnerable residents and the nurse call sequence#

Senior and assisted living adds residents who may have limited mobility, hearing, vision or memory, and who may be anxious about strangers in the unit. The property’s staff know which residents need extra time, which need a family member present, and which should be scheduled first or last. We plan the schedule with them and adjust it when they ask.

The nurse call or emergency call system is the one system that cannot have a gap. In senior and assisted living, emergency call systems are commonly required by the licensing or funding program and by the owner’s operating standards, with pull cords in bathrooms and bedrooms, pendant transmitters, corridor dome lights, and annunciation at a staff station or on mobile devices. Where the building is licensed healthcare, UL 1069 listed systems apply. Our nurse call systems guide covers the system itself. The sequencing on an occupied building runs in a fixed order. The new head end and annunciation are installed and tested first. Units are cut over one at a time, with the old station or cord left active until the new one has been tested from the unit and confirmed at the staff station. Staff are trained on the new annunciation before the old station is removed. At Horton House this sequence ran alongside the Wi-Fi, CATV, camera and access control work without a unit losing its call path.

HUD funding, relocation, and what the schedule must respect#

Most occupied affordable housing rehabs in California carry federal money through HUD programs, tax credits or both. That brings two sets of rules the low voltage schedule has to fit inside.

The first is relocation. The Uniform Relocation Act and its regulations at 49 CFR Part 24, along with HUD’s own guidance, govern when a federally assisted project may require residents to move temporarily and what the owner must provide when it does. Described generally, a rehab that can be done with residents in place avoids most of that cost and paperwork, which is why owners phase the work the way this guide describes. Where a unit must be vacated for other trades, the low voltage work in that unit is scheduled into the same window. The relocation plan is the owner’s responsibility; we build the schedule to it.

The second is procurement. Video surveillance equipment bought with federal funds must comply with NDAA FY2019 Section 889 and 2 CFR 200.216, which bar covered equipment from Hikvision, Dahua and their affiliates, including the white label brands built on them. On a HUD-funded rehab the camera submittal identifies the actual manufacturer. Our NDAA compliant camera guide explains the requirement and the brands commonly specified to meet it. Prevailing wage and DIR registration may also apply depending on the funding; DIR registration and current certificates are provided in the prequalification packet.

Sequencing cutover so old service stays live#

The rule for every system is the same. Build the new system in parallel, test it, cut each unit or each door over in a short visit, and remove the old system only after the new one is confirmed. The table shows how that plays out for the systems typically in a rehab.

System	Built in parallel	Cutover unit of work	What stays live until tested
CATV and MDU distribution	New head end, amplifiers and riser coax alongside existing	One unit outlet	Existing coax and drop
Property-wide Wi-Fi	New access points, switches and backhaul on new cabling	One floor or one access point	Any existing resident internet service
Video surveillance	New recorder and cameras on new cabling	One camera or one floor	Existing cameras and recorder
Access control and entry	New controllers and readers wired alongside existing	One door	Existing reader, keys and entry panel
Nurse call and emergency call	New head end and annunciation, tested first	One unit or one corridor	Existing station, cord and dome light

Head end and network room work comes first in every case, because every system depends on it, and it can be done without entering a unit. Our CATV and MDU distribution page describes what the new distribution looks like; the point here is that it exists and is tested before any resident’s outlet is touched.

Testing and documenting every unit#

An occupied rehab produces a paper trail that a vacant one does not, because the owner, the property manager and often the funder need to know what was done in each unit. The per-unit record we deliver contains the items in the table.

Record	Content
Unit access log	Date, time in and out, crew lead, resident or escort present, notes
Work performed	Outlets installed or replaced, devices mounted, cable routes, any deviation from plan
Test results	CATV signal level at the outlet; data drops certified to ANSI/TIA-568.2-E; Wi-Fi coverage reading; nurse call test from each station with staff station confirmation; door test for access control
Photographs	Outlet and device locations, work area before and after where required
Exceptions	Units not entered, refused, or incomplete, with the reason and reschedule date
Sign-off	Property management or GC acknowledgment per unit or per floor

At closeout those records roll up into the as-built drawings, the labeled riser and closet documentation, and the system administration records the property manager will need. The Division 27 and 28 specification checklist lists what the specification should require so this documentation is priced from the start rather than negotiated at the end.

Next step#

If you are planning a renovation of an occupied affordable, senior or multifamily building anywhere in California, request a bid with the unit count, the systems in scope and the funding sources. We will return a phased scope with the unit visit description your notices need and the cutover sequence for each system. General contractors can find our standard occupied-building provisions on the for general contractors page.