The Mondrian — ¼C Modern

The plan

Every square foot, accounted for.

Program3 bed · 2 bath

Floor area1,350 sq ft · 2 storeys

StructureConventional frame, panelized cladding

RoofFlat, colour-blocked fascia

EnvelopeStep Code 5 target · ACH50 ≤ 1.0, blower-door verified

Signatureplay yard · panel façade

Plan drawn to the render. Room dimensions on the drawing; areas sum to the stated floor area. A construction set follows the House No. 1 pipeline.

Primary colour panels wrap a simple two storey box, the stair rides a glass slot on the garden side, and all three bedrooms stack upstairs so the ground floor runs open to the play yard.

The honest number

What it should cost to build.

Site prep + servicesexcavation, utilities to lot line hookups$25,500

Foundationslab or crawlspace, insulated$42,500

Structure + framingpost and beam or conventional, roof structure$68,500

Enveloperoofing, windows + doors, cladding, insulation + air sealing to ACH50 ≤ 1.0$102,500

Mechanical / electrical / plumbingheat pump, HRV, full rough-in + fixtures$77,000

Interior finishesfloors, millwork, kitchen, baths, paint$85,500

GC + contingencysupervision, permits admin, 5% contingency$25,500

Hard cost$427,000

Band $393,000 to $461,000 · $316/sq ft

Cost model v0.1: Okanagan 2026 hard-cost bands from a $/sq ft basis, stated as an estimate, not a quote. Excludes land, design and permit soft costs, and GST. As the House No. 1 build sheet gathers real supplier and trade receipts, receipts replace estimates here, line by line.

Every square foot, accounted for.

What it should cost to build.

The rooms this plan is for.