Ask ten homeowners how long their renovation took, and you’ll get ten different answers, which is exactly why “it depends” isn’t good enough when you’re planning your own. Here’s a realistic breakdown of what actually shapes the timeline on a luxury London project.
How Long Does the Whole Process Take, Start to Finish?
For a genuinely high-end renovation, one involving structural changes, an extension, or bespoke joinery, most projects run somewhere between nine and eighteen months from first brief to final handover. A cosmetic refresh with no structural work can move far faster, but that’s rarely what “luxury renovation” actually means once you factor in custom cabinetry, natural stone, and integrated technology.
How Much of That Time Is Design, and How Much Is Construction?
This is where most homeowners underestimate the schedule. A proper space planning and design phase, briefing, concept development, drawings, and material selection, typically takes two to four months on its own before a single wall comes down. Rushing this stage to get on site faster almost always costs more time later, in the form of mid-build changes and re-orders.
Does Planning Permission Slow Things Down?
Significantly, if your project needs it. Internal reconfiguration rarely requires planning permission, but extensions, loft conversions, and anything touching a listed building or conservation area do, and approval alone can add eight to twelve weeks before construction even starts. Building this into your schedule from day one, rather than discovering it mid-project, is one of the simplest ways to protect your timeline.
Why Do Bespoke Finishes Add So Much Lead Time?
Luxury finishes are, almost by definition, not sitting in a warehouse ready to ship. Hand-finished joinery, natural stone slabs, and specialist lighting can carry lead times of eight to sixteen weeks after the design is signed off, and ordering late is one of the most common reasons a “six-month” project quietly becomes a nine-month one.
What Actually Speeds Up a Luxury Renovation?
Sequencing. Projects run fastest when design, procurement, and construction sit under one team working from the same drawings, rather than being passed between separate consultants who each need time to interpret someone else’s work. A design and build approach removes those handoff delays almost entirely, because materials are ordered against a confirmed design rather than being chased once the contractor’s already on site.
So What’s a Realistic Timeline to Plan For?
If your renovation involves structural work or an extension, plan for design and permissions to take three to five months, and construction a further six to twelve months depending on scale. Building in a buffer of at least four to six weeks beyond that isn’t pessimism, it’s how experienced teams actually plan.
If you want a realistic timeline for your specific property, our renovation company in London team can map one out based on your scope, not a generic average.
