North Jersey · Mendham and Harding, New Jersey
Smart Home, Lighting & AV in Mendham and Harding.
Estates on three, five, and ten acres in New Vernon, Mendham, and Bernardsville, on private wells and septic, under a zoning officer who approves the generator before the permit and a grid JCP&L has been rebuilding since the 2023 tornado. One property here is several buildings.
Mendham and Harding, Specifically
One Property, Several Buildings.
Harding Township's RR and R-1 zones, which cover most of New Vernon's estate parcels, require five- and three-acre lots with 300 feet of frontage and 100-foot setbacks, and the township requires zoning approval before a construction permit for anything outside the existing footprint, generators included. Mendham Township's generator packet asks for a zoning permit with a survey showing the placement and sub-code forms signed by licensed electrical and plumbing contractors. Bernardsville's Historic Preservation Advisory Committee reviews permits in five historic districts covering 6.1 percent of the borough.
Septic systems are permitted locally under statewide standards, and shallow bedrock in western Morris County shapes where a trench can go. JCP&L serves all three towns; its upgrades cut Bernardsville outages 32 percent after the 2023 tornado, and it is investing $6.9 billion in New Jersey through 2030. Fios and Xfinity cover Mendham, Optimum offers 8-gigabit fiber, and New Vernon's low density traces to a 1920s restrictive agreement that still shapes its wooded lots.
01 · Distance
Fiber Between Buildings
On three acres and up, the gate, the barn, the guest house, and the pool are fiber runs with spare conduit, laid before the drive is paved, and one Lutron and Crestron system covers every building with the same keypads.
02 · Approval
Zoning Before the Permit
Harding and Mendham approve the generator's location on the survey before the construction permit; the well, the septic field, and the bedrock decide the rest. We put all of it on the drawings with the licensed electrician.
03 · Power
A Grid Being Rebuilt
JCP&L's upgrades have cut outages, and a tornado still took the lines down in 2023. A generator sized for the house and a battery-backed rack keep the network and the cameras up either way.
At a Glance
Mendham and Harding in brief.
- Zoning
- Harding Township's RR and R-1 zones, covering most of New Vernon's estate parcels, require minimum lots of five and three acres with 300-foot frontage and 100-foot setbacks.
- Approvals
- Harding requires zoning approval before any construction permit for structures outside the existing footprint and lists fences, signs, and generators; Mendham Township's whole-house generator packet requires a zoning permit application with a survey showing the placement plus electrical and plumbing sub-code forms signed and sealed by licensed contractors.
- Historic review
- Bernardsville's Historic Preservation Advisory Committee reviews applications and permits affecting five historic districts (Olcott Avenue, the Gladstone Branch railroad, the Brigade Encampment area, Hardscrabble Road, and Pleasant Valley), 502.2 acres or 6.1 percent of the borough.
- Septic and bedrock
- Septic systems in Morris and Somerset counties follow statewide NJDEP standards (N.J.A.C. 7:9A) but are permitted and inspected locally, and shallow Highlands bedrock in western Morris County constrains where trenches and conduit can run.
- Electric service
- JCP&L serves Mendham, Harding, and Bernardsville; its upgrades reduced Bernardsville outages by 32 percent with 62 percent faster restoration after a 2023 tornado damaged lines there, and the utility is investing $6.9 billion in New Jersey through 2030.
- Internet
- Verizon Fios and Xfinity both report full coverage in Mendham, with Optimum fiber at up to 8 gigabits; in Bernardsville, fiber reaches about 84 percent of addresses and Fios about 97 percent.
- Market
- Mendham Township listings in October 2025 included a seven-bedroom house on 23.78 acres at $4,250,000 and a six-bedroom property on 5.44 acres at $4,995,000; Forbes has named New Vernon one of the nation's most expensive zip codes.
- History
- Harding's low density traces to the 1920s New Vernon Neighborhood Restrictive Agreement, in which estate owners placed covenants limiting development across more than 1,000 acres.
Sources: Harding Luxury Homes, zoning basics; Harding Township, zoning; Mendham Township, whole-house generator requirements; West Oak Team, historic homes in Bernardsville; Septic Finder NJ, Morris County; ROI-NJ, JCP&L Somerset County upgrades; Allconnect, internet in Mendham; BroadbandNow, Bernardsville; New Jersey Luxury Real Estate, Mendham Township; DeFazio Flanagan, Harding Township; Harding Township (Wikipedia).
Reading for Mendham and Harding
Guides and work nearby.
- What an estate network costs →
Fiber between buildings, access points per acre, and what it adds up to.
- Why mesh Wi-Fi fails in a large house →
- Generator and UPS planning for the rack →
- The complete security stack for a house →
- Sport court, simulator, and pool room AV →
- Support across more than one home →
What We Install and Service
Every System. One Keypad.
Lighting & Shades
Lutron HomeWorks, Ketra and Rania light, Palladiom keypads, and shades that disappear into the ceiling.
Lighting →Whole-Home Control
Crestron and Lutron on one set of keypads and touchscreens, programmed the same way in every house you own.
Residential →Cinema & Music
Dedicated theaters, media rooms, and music in every room without a speaker in sight.
Residential →Network
Enterprise Wi-Fi and fiber sized for a large house, guest houses, and the far end of the lawn.
Networking →Security & Gate
Cameras, access control, gate intercom, and an alarm that a UL-listed central station answers.
Security →Outdoors
Landscape lighting and outdoor sound on one buried infrastructure, on the same keypad as the house.
Outdoor →Upgrades
Older Crestron and Lutron systems brought current, reusing the wiring already in the walls wherever possible.
Upgrade paths →Support
Monitoring, remote fixes, and priority response under one plan.
Cave Watch →Questions From Mendham and Harding
Mendham and Harding, Answered
Who installs Lutron and Crestron systems in Mendham and Harding?+–
Cave Group does. We are a Crestron Elite Gold Partner and Lutron Gold Dealer with an office in Fairview, Bergen County, and we design, install, and service lighting control, shades, cinema, audio, networking, security, and backup power for estates in Mendham, Harding Township, New Vernon, and Bernardsville.
Can one system cover the main house, the barn, the guest house, and the gate?+–
Yes, and it should. We link the buildings with fiber, give each one a small equipment location, and run them as one Lutron and Crestron system, so keypads, touchscreens, and the app work the same way everywhere. On three acres and up it is far easier to do while the site work is open than after the drive and the fences are in.
Where can a generator go?+–
Where the zoning officer approves it first. Harding requires zoning approval before a construction permit for a generator, and Mendham's packet asks for a survey showing the placement with sub-code forms from the licensed electrical and plumbing contractors. The state's 65- and 50-decibel limits decide the enclosure and the exercise schedule, and the well and the septic field decide where the trench can run.
Who is licensed to do what in New Jersey?+–
New Jersey has no separate low-voltage license. Wiring that ties into the building's electrical system, which includes the circuits that feed a rack, a shade transformer, or a lighting panel, is done by or under a state-licensed electrical contractor, and burglar and fire alarm work needs a separate business license from the state's Burglar Alarm, Fire Alarm and Locksmith Advisory Committee, with every installer registered and fingerprinted. We plan every North Jersey project to comply with both.
Which internet providers serve Mendham and Harding?+–
Verizon Fios reaches most of these towns, Optimum is building fiber at up to 8 gigabits in several of them, and Xfinity serves parts of Morris County. We confirm what reaches the address, and on larger properties we design for two connections with automatic failover, so a single outage does not take the house offline.
Nearby
Other North Jersey towns we serve.
Start Here
Walk the House With Us.
Bring the drawings if the house is on paper, or the list of what no longer works if it is already built. We will tell you what we would do, in what order, what it would take, and which permit comes first in your town.
Start a Projector call · +1 (888) 712-2283 · [email protected]