Ottawa renovation timelines run 2-3x longer than most homeowners expect. Here are realistic 2026 timelines from design to completion for every common project type, with Ottawa-specific factors that extend or compress schedule.
Design: 4-8 weeks (longer for custom cabinets). Permits: 3-5 weeks. Cabinet lead time: 8-16 weeks (custom 12-22 weeks). Construction: 4-8 weeks once materials arrive. Total: 16-28 weeks from initial design to completed kitchen. Faster is possible (semi-custom cabinets + simple layout) — 10-14 weeks. Slower for high-end custom: 28-40 weeks.
Design + product selection: 3-6 weeks. Permits: 2-4 weeks. Tile/fixture lead time: 4-8 weeks (custom 8-14). Construction: 3-5 weeks. Total: 12-20 weeks for primary bathroom; 8-14 weeks for powder room. Multi-bathroom projects can run partially in parallel if you have second bathroom available.
Design: 3-6 weeks. Permits: 4-8 weeks (longer if SDU — see SDU guide). Construction: 12-18 weeks for typical 1,000 sq ft finished basement; 20-32 weeks for full SDU with kitchen/bath. Total: 18-32 weeks (32-44 weeks for legal SDU). Inspections add 1-2 weeks between stages.
Design: 8-16 weeks (architect-led longer). Engineering: 3-6 weeks. Permits: 8-16 weeks (longer with Committee of Adjustment). Construction: 16-32 weeks depending on size and complexity. Total: 10-16 months from initial design to completion. Add 3-6 months for heritage or COA-required projects.
Cosmetic whole-house: 16-26 weeks. Major whole-house (kitchen + baths + finishes + some mechanical): 26-40 weeks. Full gut: 36-60 weeks. Heritage gut: 48-72 weeks. Most homeowners must move out for full gut: 8-14 month rental typically needed.
Peak season delays (April-August): 4-8 weeks longer due to contractor capacity. Winter exterior work limits: roofing/siding/concrete generally pause Dec-March. Permit office wait times: standard 3-5 weeks but spring 2026 has been running 5-8 weeks. Heritage district projects: +6-12 weeks for heritag...
Almost every Ottawa renovation moves through the same five phases, and homeowners underestimate the first two every time. Phase one is design and decisions (4-16 weeks), where layouts are finalized and every product is selected — the single biggest controllable lever on total timeline. Phase two is permitting (2-16 weeks depending on scope and season). Phase three is procurement, where long-lead items like cabinets, windows, and specialty tile are ordered and manufactured. Phase four is construc...
Finalize every layout and product choice before construction begins. Decisions made on-site mid-build are the leading cause of Ottawa renovation delays and change orders. A locked design and a full materials order shorten the schedule more than any other single action.
Permit timelines vary by complexity and season. A simple interior building permit (no structural change) often clears in 2-4 weeks; a typical kitchen, bathroom, or basement permit runs 3-6 weeks; additions and secondary suites run 6-16 weeks; and anything needing a Committee of Adjustment minor vari...
Procurement, not construction, sets the pace of most kitchen and bath projects. In 2026, stock and semi-custom cabinets run 8-16 weeks, and full custom cabinetry 12-22 weeks — which is why your kitchen timeline is dominated by the cabinet order, not the install. Windows and exterior doors run 6-12 weeks, longer for custom sizes. Most domestic tile, vanities, and fixtures sit at a normal 4-8 week lead time, but specialty imports like Italian tile and European appliances are still running 12-24 we...
Place long-lead orders — cabinets, windows, specialty tile, appliances — as soon as the design is final, not when construction starts. A single backordered item can stall a crew for weeks and is the most common avoidable delay in Ottawa kitchens.
Exterior projects are short to install but tightly bound to Ottawa's seasons. A roof replacement is typically a 1-3 day job once booked, but the prime windows are May-June and September-October; winter installs are limited and can void shingle warranties. Siding runs 1-3 weeks for an average home and needs temperatures above about 5°C so vinyl and fibre cement install without becoming brittle. Window replacement is 1-3 days for a handful of openings but should be done April-October to avoid heat...
Outdoor structural work in Ottawa is governed by both permits and frost. A deck requires a building permit if it is over roughly 0.6m above grade or attached to the house, and footings must reach below the frost line — about 1.5m in Ottawa — so the build runs 1-3 weeks once permitted. Fences over th...
Most Ottawa schedule overruns trace to a short list of causes: design and product changes made mid-construction, long-lead items ordered too late, hidden conditions in older homes (knob-and-tube, asbestos, rot, undersized service), permit applications submitted incomplete, peak-season contractor capacity, and Ottawa's seasonal limits on exterior trades. Each is largely preventable. Lock the design, order early, budget a discovery contingency on pre-1980 homes, submit complete permit packages, bo...
On century homes and post-war bungalows, assume something will be found behind the walls. Adding two to four weeks of schedule float and a 20-30% contingency keeps an asbestos or wiring surprise from derailing the entire timeline.
Total: 16-28 weeks from initial design to completion. Construction itself is only 4-8 weeks; the rest is design, permits, and cabinet lead times. Faster is possible with semi-custom cabinets and simple layouts (10-14 weeks).
Primary bathroom: 12-20 weeks total. Powder room: 8-14 weeks. Construction itself: 3-5 weeks. Lead times for tile, vanities, and fixtures dominate the schedule.
Typical 1,000 sq ft finished basement: 18-32 weeks. Legal SDU with kitchen and bathroom: 32-44 weeks. Permits and design dominate the early timeline; construction itself is 12-32 weeks.
10-16 months from initial design to completion. Permits often take 8-16 weeks (longer with Committee of Adjustment). Construction itself is 16-32 weeks depending on size. Heritage and COA add 3-6 months.
Combination of: permit office wait times (3-8 weeks), peak season contractor capacity constraints (April-August), supply chain on specialty products (12-24 weeks for European), Ottawa-specific freeze-thaw scheduling limits (no roofing/siding in winter), and the layered nature of building/electrical/plumbing/HVAC permit reviews.