The Slim — ¼C Modern

The plan

Every square foot, accounted for.

Program2 bed · 1.5 bath

Floor area1,120 sq ft · 2 storeys

StructureConventional frame, party-wall ready

RoofRoof deck, spiral access

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

Signature16 ft frontage · roof deck

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.

Sixteen feet of frontage stacked three ways, living below, bedrooms above, and the whole footprint given back as a roof deck at the top of the spiral stair.

The honest number

What it should cost to build.

Site prep + servicesexcavation, utilities to lot line hookups$23,000

Foundationslab or crawlspace, insulated$38,000

Structure + framingpost and beam or conventional, roof structure$61,000

Enveloperoofing, windows + doors, cladding, insulation + air sealing to ACH50 ≤ 1.0$91,500

Mechanical / electrical / plumbingheat pump, HRV, full rough-in + fixtures$68,500

Interior finishesfloors, millwork, kitchen, baths, paint$76,500

GC + contingencysupervision, permits admin, 5% contingency$23,000

Hard cost$382,000

Band $351,500 to $412,500 · $341/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.