A three-storey apartment building re-clad in light wood and slate-grey vertical siding over a stone base, seen across its parking court with mountains behind
Case Study — Multifamily Residential

Nine Schemes, One Locked Camera

An existing apartment building, re-clad on screen for an architecture practice. Two cameras set in August, a third in October, all held until April — while nine colour and material schemes were decided through them.

Architecture PracticeMultifamily Exterior VisualizationPraxis Studio

When the question is “which cladding?”, the only honest way to answer is to change nothing else. Every decision on this building was made by comparing frames that differed in exactly one way.

63Frames issued
22Comment rounds
9Schemes on one camera
6h 0mFastest answer
Project type

Existing Apartment Building, Re-clad

Services
  • Multifamily Exterior Visualization
  • Modelling from a Revit Export
  • Material & Colour Option Studies
  • Enlarged Detail View
  • Interior Daylight Study
  • Same-Day Revision
Deliverables
  • Three Locked Exterior Cameras
  • Enlarged Entry-Unit View
  • Two Interior Window Studies
  • Nine Schemes on One Camera
  • Clean Finals, Layered Files Retained
The Brief

“Do you render from a Revit model, or build your own?”

That was the first line, on 23 August: “can you create a rendering from a revit model? Or do you create your own model? This is an existing building with new siding. Existing stone stays. I have the model, & new colors / materials.” Three days later the files came — a 3D view and two elevations exported from Revit, a site plan with the two view angles drawn on it, photographs of the building as it stands, swatches of the new siding — with a note we hear from practices more often than you would think: “My revit modelers are having a hard time making renderings from this.”

We build our own model. To their export, to their elevations, to their photographs — so the stone base is the real stone, the cameras sit where the site plan says, and the whole skin can be swapped in a morning without touching anything else. The first two frames went out on 29 August.

A 3D view exported from Revit, as DWGEast and south elevations, as DWGA site plan with the view angles markedPhotographs of the existing buildingNamed materials and colours, as swatchesProduct photos: corrugated, board & batten, V-grooveComment sheets, marked up in PDFA photoshopped example of the view they wanted
The building’s corner in the final scheme: the existing stone base, slate-grey vertical siding above, timber-framed balconies
The Turning Point

“We want to look at two other options for colors & materials”

The brief’s colours went out on 30 August and lasted ten days. On 9 September the client wrote out two more schemes, each in four lettered clauses — corten corrugated and corten wide panel for one; dark grey board & batten at 16″ for the other, with the horizontal white dropped to 6″ and the deck siding changed on both. Four frames went back that day, all four inside 8h 12m. The next morning: “Thank you, for the dark version, will you make the dark as lighter, to show contrast with the original?” Received at the start of our day, returned in 6h 0m. That is the rhythm the rest of the job kept. Click through the schemes below — the car, the trees, the sun and the stone never move.

30 Aug · brief view11 Sep · corten view29 Sep · grey B&B view29 Oct · light ash view13 Nov · Scheme B view3 Apr · final view
  • 30 Aug — white lap siding, black corrugated bump-outs, black vertical towers: the brief
  • 11 Sep — Scheme 1: corten corrugated metal and corten wide panel
  • 11 Sep — Scheme 2: dark grey board & batten at 16″ — lightened the next morning “to show contrast with the original”
  • 24 Sep — slate grey lap, terracotta, 8″ frame channels on the triple windows, black frames and chimney cap
  • 29 Sep — light grey board & batten on every element, dark grey fascia, 5″ white trim
  • 29 Oct — light warm grey vertical, darker grey horizontal, railings and timbers in dark bronze
  • 29 Oct — light ash horizontal wood at 5.5″, slate corrugated bump-outs, hardie-panel chimneys
  • 13 Nov — Scheme A: Sierra Tan corrugated, dark window trim
  • 13 Nov — Scheme B: Slate Gray corrugated, a lighter, more uniform wood at 5″
Challenges

Four problems, held at once

A client who draws

An architecture practice with its own Revit model, who opened by asking whether we render from Revit or build our own. We build our own — to their export, their elevations and their photographs — so the model is ours to re-clad in a morning and the building stays theirs. The existing stone base was matched from their photos and never changed.

Nine answers to one question

The colours in the brief were the first scheme, not the last. Corten, board & batten, slate grey, grey on every element, warm grey with bronze, light ash wood, Sierra Tan, Slate Gray with lighter wood: each a full re-clad of the model, each issued on the same three cameras so the only thing that moved was the decision.

Site truth, not just siding

The second comment sheet was about the street: the cars were on the wrong side of the road, the sidewalk should wrap the porch, there is a rolled gutter where we had drawn a high-back curb, the centre windows are wider and one mullion, and the frames sit 2″ back so they cast no shadow. Received at the start of our day, both views back in 7h 19m and 8h 3m.

Views that were not in the brief

Two cameras were ordered. The back elevation was asked for in October, an enlarged entry unit in November, two interior window studies in March. The back view, the extra schemes and the six-frame update were each quoted before they were drawn and ordered on their own — and every new camera was then held to the same rule as the first two: set once, never moved.

August to April

The second camera, first issue against last

View 2 looks back along the building past the stone pier of the stair. It was set on 29 August and reissued on every round after; this is the 30 August frame against the one that closed the job on 3 April 2026. Drag the handle: seven months and nine schemes apart, the camera and the sun are the same.

  • Every cladding surface: white lap and black metal → wood, slate V-groove and corrugated
  • Window frames: black, 4″ wide, dark trim removed
  • Railings and timbers re-coloured to dark bronze
  • Building signage removed (asked for 22 Sep)
  • Camera position unchanged
  • Sun position unchanged
Our Workflow

Nine stages, and only three of them repeat

Model, cameras, sun and planting are solved once. A comment sheet re-enters at materials, detailing and post-production — never at the model — which is why a sheet received at the start of our day comes back finished before the end of it.

  1. 01Read the Revit export and the two elevations
  2. 02Build the model; existing stone from their photographs
  3. 03Set the cameras to the site plan’s marked angles — and lock them
  4. 04Set the sun once and hold it
  5. 05Apply the named materials from the swatches sent
  6. 06Issue for comment, proof-marked
  7. 07Re-clad from each comment sheet, inside the working day
  8. 08Open a new camera only when it is ordered
  9. 09Issue the approved frames clean
The back elevation in the final scheme: three storeys of timber balconies on stone piers, gabled roofs, lawn in front
A Camera That Was Not in the Brief

“We would like a new view of the back side”

On 27 October the client asked for a third camera — the garden side, “View 3 in the Revit Model” — together with a new colour scheme and photographs of the existing railings and timbers, which were “not quite dark black, but a dark bronze color.” The view was quoted, ordered, and first issued on 30 October. A comment sheet the next day — angled entry walls in the vertical siding, square columns, thicker rails, and a slate-grey version too — was answered on 1 November. Then, on 4 November: “I have a meeting tomorrow morning and need the final images of view 3 without the water mark.” Three clean frames of the back elevation went out 8h 21m, 8h 33m and 8h 34m after that line arrived. The slider holds the 13 November Scheme B frame against the April final.

  • Dark corrugated siding → vertical V-groove at 8″
  • Window frames black, 4″, no dark trim
  • Camera position unchanged
  • Sun position unchanged
The back elevation of the apartment building in its final scheme, from the lawn
13 November
“These changes would apply to all 3 views for each.”

Both schemes, all three cameras: window trim at 8″ head and 6″ sides, corrugated metal on the towers and chimney caps, Sierra Tan for A, Slate Gray for B, a lighter wood at 5″. Six frames went out on 12 November; the comment sheet on them arrived the next morning and six more went out in 7h 50m.

  • Three cameras
  • Two schemes
  • Six frames
  • 7h 50m
Closer

An entry unit at the scale of its corrugations

On 14 November, one more: “We need an enlarged view of a typical entry unit, in color scheme B only,” built to a photoshopped example of the angle they wanted so they could composite the real deck behind it — “it’s very important to show the corrugated profile, not as a flat surface.” It was first issued the next day. The follow-up gave the profile a specification — a 1″ stand-off, ribs at 2.67″ — moved the light fixture down and made it shine only downward; that came back in 8h 59m. In March the practice came back: the dark corrugated was to become V-groove at 8″, and could they have two images of the new window types “from inside the room. The room can just be white walls, 8′ flat ceiling, wood flooring.” Then, on 2 April, the last change — no dark trim, 4″ black frames throughout — and all four cameras were reissued on 3 April.

  • Entry recess: corrugated profile → V-groove, same colour
  • Window on the right: thicker black frame, trim removed
  • Camera position unchanged
  • Deck, door and light fixture as approved in November
The Record

What came in, what went back, how long

Every turnaround below is measured from the comment file’s arrival to the frame that answers it. Where a round produced several frames, the range runs from the first to the last. Comments arrive at the start of our working day; “same day” means before the end of it.

ReceivedWhat came inWhat went backTurnaround
23 Aug 2025The brief: an existing building, new siding, stone stays; Revit model and colours attachedQuestions back; files requested—
26 AugRevit 3D view and two elevations as DWG, site plan with view angles, photographsTwo views, first issue, 29 Aug3d 8h
29 Aug“I didn’t do a very good job explaining the colors” — white lap, black corrugated, black vertical; rocks and bouldersBoth views re-clad8h 13m
30 AugFive-point sheet: traffic direction, sidewalk, gutter, entry siding, window widths and 2″ setbackView 1 · View 27h 19m · 8h 3m
9 SepTwo more schemes, specified A–D each: corten; dark grey board & battenFour frames8h 12m, all four
10 Sep“will you make the dark as lighter, to show contrast with the original?”Scheme 2, both views6h 0m
22 Sep“Will u delete all of this signage”Both views, signage gone8h 42m · 8h 49m
29 SepWhole building in light grey board & batten, dark fascia, 5″ white trimBoth views8h 28m · 8h 30m
27–28 OctA new back view (View 3) and two new schemes, with photos of the existing railingsFour front frames, 29 Oct; View 3 first issue, 30 Oct1d 7h · 3d 3h
30 OctComment sheet on all views; bump-outs lighterFive frames7h 46m – 8h 33m
4 NovView 3a / 3b comments; “I have a meeting tomorrow morning and need the final images of view 3”Three back-view frames, clean8h 21m – 8h 34m
10 NovUpdates to both schemes across all three views: trim, corrugated towers, Sierra Tan / Slate Gray, lighter woodSix frames, 12 Nov2d 7h
13 NovComment sheet: dark trim on both, siding to soffit, Iron Gray darker, columns to ground, wood wraps the cornerSix frames, both schemes, all three cameras7h 50m, all six
14 NovAn enlarged entry unit in Scheme B — “very important to show the corrugated profile, not as a flat surface”Entry view, first issue1d 6h
18 NovCorrugation spec: 1″ stand-off, ribs at 2.67″; door, light fixture, wood wrapEntry view8h 59m
5–9 Mar 2026Reopened: two interior views of the window types; dark corrugated → V-groove at 8″Two interiors, 10 Mar; entry view, 12 Mar5d 9h
2 AprWindows changed: no dark trim, 4″ black frames, 2″ trim at the baysAll four cameras reissued, 3 Apr1d 7h – 1d 9h
One Camera, Ten Issues

View 1, August to April

View 1 was issued twenty-three times over the job. These ten are the ones where a scheme changed. Same camera, same car, same trees, same sun; only the building.

Outcome

What the record actually shows

Sixty-three frames across twenty-two comment rounds, August to April, on three cameras set once. Each addition beyond the two-view brief — the back view, the extra scheme pairs, the six-frame update — was quoted before it was drawn and ordered on its own. The practice came back in March with a window change and two interior studies; the last four frames went out on 3 April. Whether the building was re-clad as drawn we do not know, and this page does not claim it.

  • Model built from the Revit export
  • Existing stone held through nine schemes
  • Three cameras, never moved
  • Signage removed on request
  • Back view opened when ordered
  • Entry unit at corrugation scale
  • Six-frame update in 7h 50m
  • Reopened in March, finished 3 April

Deciding a cladding, a colour, a window?

Send the Revit export or the CAD and the swatches. We build the model once, lock the cameras, and re-clad it from your comment sheet the same day — so your client compares decisions, not pictures.