401 Oak Electrical Plan
401 Oak Court · Downstairs + upstairs · Draft for discussion · Updated 2026-10-29

Electrical Plan

Lights, switches and plugs for every ground floor room (kitchen and family room, living room, entry and stairs, office, powder room, mudroom, guest suite) and now upstairs too: the landing and hall, both kids' rooms, the kids bath, the primary bedroom and the primary bath. The kitchen + family room also has the Sonos speaker spots and their wire runs, and the Cat6 network runs from the office to the TV console, the landing and the guest sitting room. Rough electrical is not inspected yet, so there is still time to change the plan.

The short answer
Decided: 4" downlights in every room.
  • Your ceilings are 8'-0". At that height a 6" hole looks big and dated. A 4" hole almost disappears.
  • 4" lights sit about 4 ft apart. That spreads light evenly over counters and avoids dark gaps.
  • Go trimless or very thin trim, matte white, 2700K warm white, CRI 90 or higher, all on dimmers.
  • Downlights are only one layer. The modern look comes from adding light you see less of: under cabinets, along the beam soffits, on the walls, and at eye level.
  • Use the same 4" light in every room, including the 9'-4" guest wing and upstairs, so the whole house matches. On a sloped ceiling use the sloped-ceiling version, and keep lights on the flat part where there is one.
  • Layers instead of more ceiling lights. That is the rule for every room (written up in lighting-principles.md in the lighting folder).
  • Why not 6": see the appendix at the bottom.

See it in each room

A 3D model built in code. Pick a room, downstairs or upstairs, then drag to look around and scroll or pinch to zoom. Turn layers on and off and try the scenes. Each room sheet below the model has a 2D plan for the electrician. The kitchen + family room sheet also draws every wall and each side of the island flat, with each plug and switch at its height.

One page per room: plan, light placements, switches and plugs. The kitchen + family room runs several pages with its wall drawings. It takes a few seconds to build, then asks you to confirm the save. Email the PDF to the electrician.

Loading the 3D model…
View
Scene
Layers
80%

Fixture count, whole house

Counted from the layouts in the model. A starting list to price from. Tap a room name to open it above.

What to buy: the downlight spec

Size
4" round (or 3"/2" if budget allows)
Trim
Trimless (plastered in) or thin flange, matte white
Color
2700K warm white, the same in every open-plan room
CRI
90+ (R9 over 50) so food, wood and stone look right
Beam
40° to 50° for general light; adjustable gimbals for wall wash
Output
About 600 to 900 lumens each
Lens
Set back inside the trim, not flush. Cuts glare
Housing
IC-rated (OK touching insulation) and airtight. A must in the guest wing and upstairs, which have attic above
Slopes
Sloped-ceiling housing or an adjustable trim, so the light still points straight down. Needed in the primary bath and anywhere a light lands on a slope
Closed ceilings
Where a ceiling is not opened (maybe upstairs): 4" canless wafer lights, cut in from below. Same color and CRI
Shower
Wet-location rated
Code
JA8 certified, no screw-in bulbs (state energy code)
Dimmer
ELV type, matched to the fixture's driver

Brands to look at

  • WAC Aether: 2" and 3.5" small aperture, shallow housings for tight ceilings. Retail about $225 to $390 each for the 2".
  • DMF Lighting: M Series is their 4". X Series is their 2". Based in Carson, near Los Angeles. Used by lighting designers.
  • Juno, Halo: solid lower-cost 4" options.
  • Lucifer, Pure Lighting: top end trimless. Square trimless fixtures can pass $350 each.

Local showroom: Lite Line Illuminations in Los Gatos carries trimless lines. Ask whether they offer layout help.

The other lights that make it look modern

Modern rooms layer light. Ceiling lights for general light, hidden light for glow, and one or two pieces you actually look at.

LayerWhereWhatWhy
Under-cabinet LEDKitchen uppers, mudroom lockersLED tape in an aluminum channel, 2700K, set at the front edgeThe best work light on the counter. Hides the source
PendantsIsland, dining, breakfast table, entryIsland: one slim linear pendant. Dining: a sculptural piece about 30" above the tableThe lights you look at. Brass ties to the hardware
Soffit lightAlong CB-2, CB-4, CB-5, CB-1A thin linear LED along the soffit edge (see below)Makes the beam soffits look planned
Wall washQuartzite TV wall, office shelvesAdjustable 4" downlights, 12" to 18" off the wall, aimed at itBright walls make a room feel bigger
SconcesKitchen range wall, living room, powder, guest bed, primary bed, primary bath vanityWall lights at eye level. Polished gold in the powder room and primary bath. The guest bath and kids bath get a 48" LED light bar over one large mirror insteadLight at face height is warmer and kinder than light from above
Step lightsStair wallSmall recessed lights every 2 stepsSafe at night, looks custom
Toe-kick glowIsland, every floating bath vanity, the primary tub ledgeLED tape, on a motion sensor at nightNight light that makes cabinets float
Slope and step glowUpstairs: kids' rooms, primary bed headboard wallLED in a small channel at the top of a knee wall or on a ceiling stepMakes a sloped attic ceiling look planned
Skylight well LEDGuest sitting room, kids bath, primary bathLED tape hidden in the skylight wellGlows at night instead of a black hole
Night lightsUpstairs landing and hallSmall recessed wall lights about 12" up, on a motion sensorThe walk to the bath at night, no glare
Switched outletsLiving room, office, guest sitting roomOutlets on a wall switch for lampsLamps come on with one button
ControlsWhole houseLutron RA3 or Caseta with scene keypadsOne button sets a mood. Fewer switches on the wall

Ceiling fans and lights

Your room notes ask for fans in every room except the living room. The model puts one in the office and guest bedroom. The family room gets a chandelier instead (your call, 2026-10-29). The guest sitting room skips the fan (your call, 2026-10-19). Upstairs, both kids' rooms get a fan box only for now: box, blocking and wire at rough-in, a blank cover, and the fan later (your call, 2026-10-26). The primary bedroom has no fan box yet.

  • Pick fans without a light kit. The downlights already light the room, and a light kit looks dated.
  • Keep every downlight outside the blade circle (about 26" from the center for a 52" fan). A light above spinning blades flickers.
  • At 8'-0" use a flush-mount fan so the blades stay 7 ft off the floor.
  • Each fan needs a fan-rated box and blocking at rough electrical, same deadline as the lights.
  • For a fan later: run 14/3 wire from the door switch (fan plus a spare), cap it, and put a blank insert in the switch plate. The fan then goes up with no ceiling work.

Music: Sonos speakers and wire

Six ceiling speakers in the kitchen + family room, on two Sonos Amps that live in the TV console. Spots, tags and wire runs are on that room's 2D plan.

Speakers
Sonos 6" in-ceiling (made by Sonance), $729 a pair. 8 1/4" hole, about 4 3/4" deep, 9 1/4" paintable grille
Amps
2 Sonos Amps, $799 each, inside the TV console. Amp 1: TV rear pair (SP1, SP2). Amp 2: kitchen + dining (SP3 to SP6), one Sonos room
TV
Your Sonos soundbar on the console, the Sub under it. Amp 1 joins the soundbar as its rear speakers
Wire
16-gauge, 2-conductor speaker wire rated CL3 (or CL2) for inside walls. Pure copper, not copper-clad aluminum. One run per speaker, no splices
How much
About 265 ft for the six runs. Buy one 500 ft box; the rest covers a spare run
Why 16-gauge
Sonos: 16-gauge under 80 ft, 14-gauge for 80 to 200 ft. The longest run here is about 70 ft
Network
Cat6 from the office to P18 feeds a small switch in the console for both Amps, the soundbar and the streaming box. See the network section below
Rough-in
Label both ends, coil 2 ft at each speaker spot and 3 ft at the console, photograph each spot with a tape before drywall. Back box where a room is above

Why this setup

  • Sonos lets a soundbar add one pair of rear speakers: an Amp with two speakers, or two Sonos speakers. Ceiling speakers cannot be "height" speakers.
  • No wall sits beside or behind the sofa (glass slider, open dining, kitchen), so the rear pair goes in the ceiling, about a foot behind your head and out past each end of the sofa.
  • A Sonos Port cannot be the soundbar's rear speakers, and one Port is one room, so it adds nothing here.
  • 6" over 8": a smaller grille next to the 4" downlights, and the Sub covers bass. Trueplay tuning works with Sonos speakers on a Sonos Amp (needs an iPhone or iPad).
  • Kitchen + dining play as one Sonos room. Group it with the family room for parties.
  • Only the wire, back boxes and P27 go in before drywall. The speakers go in after paint.

Network: Cat6 and Wi-Fi

Sonic's internet comes into the office. The Google Wifi router and a switch sit on an open shelf there at P5, and every Cat6 cable starts at that shelf and runs to one spot, like spokes. Three Wifi units: the router in the office, a point at the TV console, a point on the upstairs landing. The guest sitting room is wired for a 4th unit or a TV later. You supply the cable.

The runs

From the office shelf (P5) toCablesFeeds
TV console, P182 (1 live, 1 spare)Small switch in the console: Wifi point, both Sonos Amps, soundbar, streaming box
Upstairs landing, P32 (1 live, 1 spare)Wifi point on the wall, about 60" up. Up the stair wall behind the shelves
Guest sitting room, P41A 4th Wifi point or a TV later
Total5 runsAbout 300 ft, measured on site. Buy one 500 ft box
Cable
Cat6, 23 AWG solid bare copper, not copper-clad aluminum (CCA). CMR (riser) rated for inside walls
Ends
Keystone jacks in wall plates at both ends: a multi-port plate at the office shelf, the P18, P3 and P4 plates at the other ends
Labels
Label both ends of every cable (TV 1, TV 2, Landing 1, Landing 2, Guest)
Slack
2 ft coiled at each end
Power
Cross power cable at a right angle. Never share a hole with it or run alongside it in the same bay
Handling
No crushing staples, no tight bends, no kinks. Cable straps or J-hooks
Switches
8-port at the office, fed by the router. 5-port in the TV console
Wifi units
Router on the open office shelf. Point on top of the TV console or in a glass cabinet. Point on the landing wall
Who buys
You supply the Cat6 and the speaker wire

The beam soffits: turn them into a feature

The soffits make one rectangle around the family room: CB-2 and CB-4 down the sides, CB-5 at the dining end, and CB-1 along the slider. CB-5 rests on the south end of the pier by the range (your call, 2026-10-29), so its soffit runs from the pier east to CB-4, about 1'-2" to 2'-5" off the range wall. They drop 2" to 3" below the ceiling. Steel sits right above, so nothing can be recessed into them. Three ways to handle them:

Simplest

Clean bands, lights kept off

Crisp corners, painted the ceiling color. Lay out the downlight grid so no light lands closer than about 12" to a soffit. Zero added cost.

Recommended

Thin LED line on the soffit edge

A surface or mud-in aluminum channel along one side of each soffit. Reads as a deliberate light line. Needs the soffit framed with a small reveal. Shown as "Soffit glow" in the model.

Most work

Widen into a cove

Build the soffit a bit wider with a lip so LED tape washes the ceiling. Best glow, but the soffit gets wider and lower. Ask the GC and Plan A before choosing.

This also answers the open ask to Plan A in beam-ceiling-issue.md: how to make the soffits line up with the lighting and look intentional.

Timing and code

Decide before rough electrical

  • Rough electrical has not been inspected yet (inspections file, 2026-10-17).
  • Housings, pendant and fan boxes, LED tape drivers and soffit channels all go in at rough-in.
  • Trimless lights need a mud-in frame set before drywall tape.
  • Speaker wire, Cat6, back boxes and P27 go in at rough-in too. The speakers go in after paint.
  • Wall-hung toilets: the in-wall tank frames get framed and plumbed first, then the Washlet plug goes 12" up beside each frame.
  • Changing after drywall means patching ceilings.

Downstairs: every wall and ceiling is open

  • Drywall is off in every downstairs room, old and new.
  • So the work is the same everywhere: new-construction housings, and boxes can go anywhere.

Upstairs: not on the permit yet

  • MEP.1 in the permit set is titled "Upper floor electrical plan (no work)".
  • Adding these lights, plugs and fan boxes likely needs a permit revision. Ask the GC first.
  • The primary bath is being redone, so it will be open. The kids' rooms, landing and kids bath may still have drywall up.
  • Where a ceiling stays closed: canless 4" wafer lights from below, and a fan brace that slides in through the box hole.
  • Upstairs room sizes are scaled off A1.4, which prints no dimensions. Tape each room before rough-in.

Code rules

  • All lights high-efficacy LED, JA8 in recessed fixtures.
  • No screw-base recessed lights.
  • Dimmers or vacancy sensors on all JA8 lights.
  • Bathrooms, garage, laundry and utility rooms: at least one light on a vacancy sensor.
  • This page is the layout. The old MEP.0 layout on the plans is only a starting point.

Websites with photos

Questions for the GC and electrician

  1. Can the electrician rough in from this page and its room tables? Does the city need a revised drawing?
  2. Your quote covers recessed lights "according to plan" and "LED lights from company selection". Price this layout and fixture spec against that, or give a credit if we supply the fixtures.
  3. How many joist bays between CB-2 and CB-4 can take a 4" IC housing without hitting steel or the HVAC duct runs?
  4. Can the soffits be framed with a small reveal for a linear LED channel? Price it.
  5. Price trimless (mud-in) versus thin-flange 4" lights, installed.
  6. Fan-rated boxes in the office and guest bedroom, a chandelier box with blocking in the family room, plus box-only rough-ins (box, blocking, wire, blank cover) in both kids' rooms upstairs. Included?
  7. Where do LED tape drivers go so they can be reached later?
  8. Can the 200A panel and wiring support a Lutron RA3 system with scene keypads?
  9. If the HVAC sub picks a ceiling cassette for the guest wing, where does it go so it does not land on a light?
  10. MEP.1 shows no electrical work upstairs. Does adding the upstairs plan need a permit revision, and what does it add to the price?
  11. Which upstairs ceilings will be opened? Where they stay closed, price canless 4" wafers and retrofit fan braces, and fishing wire from the knee-wall attics.
  12. The whole house fan needs its own 120V/20A circuit to a box in the attic over the landing. Included?
  13. The primary bath ceiling is the roof rafters. Price sloped-ceiling housings, and keep lights and fan ducts clear of the new skylight headers.
  14. All four toilets (powder, guest bath, kids bath, primary W.C.) are wall-hung TOTO Washlets with a DuoFit tank inside the wall. Each needs a tank frame in a 2x6 wall (or 2x4 with TOTO's drain kit), the drain and water line moved into the frame, and a GFCI plug 12" up beside it on its own 20-amp circuit. The kids bath is an existing bath, so its toilet wall gets opened. Included? Does the upstairs permit revision cover the kids bath?
  15. Sonos pre-wire: six runs of 16-gauge CL3 speaker wire from the TV console to SP1 to SP6, a back box behind any speaker with a room above, and P27 (2 plugs) behind the console. Four runs (SP1, SP2, SP5, SP6) cross the CB-4 soffit: inside it or through an SK-1 hole? SP3 and SP4 run north of CB-5 and over the pier. The owner supplies the speaker wire. Included, and who supplies the back boxes?
  16. Cat6 pre-wire from the office shelves (P5): 2 runs to the TV console (P18), 2 to the upstairs landing (P3) up the stair wall, 1 to the guest sitting room (P4). Solid copper Cat6, CMR rated, keystone jacks and wall plates at both ends, labeled. The owner supplies the cable. Included? Does the landing run fall under the upstairs permit revision?

Appendix: 4 inch vs 6 inch in your rooms

Decided 2026-10-18: 4 inch. Kept here for the record.

4 inch6 inch
How it looks at 8 ftSmall, quiet, modernLarge holes in a low ceiling, reads 1990s
SpacingAbout 4 ft apart (ceiling height ÷ 2)About 5 to 6 ft apart
Count downstairs
Light qualityTighter pools, easy to aim at countersWider wash, more glare in your eyes at 8 ft
Fits around beamsEasy. Small housings slip between joists and steelHarder. Bigger housings need more clear space
CostMore fixtures, so more total costFewer fixtures, cheaper to buy and wire
VerdictChosen. Use everywhere downstairsOnly in the garage, if anywhere

Want them even quieter? 3" or 2" "small aperture" downlights are the high-end modern look. They cost more per light and need more of them. Good for the open plan if budget allows.