How Long Does a Home Project Actually Take?

From Daydream to Reality

Most home projects don’t begin with drawings or planning applications. They start with a daydream. Perhaps it's a sketch on the back of an envelope, a conversation over coffee, or a feeling that your home could work better for you.

This moment may come after months of frustration. Maybe you've bumped your shin on a coffee table too many times, or squeezed into a desk crammed into a hallway for a work-from-home conference call. Alternatively, it could be an overnight decision sparked by an unexpected new arrival or a change in circumstances.

However you arrive at the beginning of this journey, once you decide to turn that spark of an idea into reality, the big question looms: How long will this actually take?

The Triangle of Time, Cost, and Quality

The truth is that a well-designed, well-planned project doesn’t happen overnight, and that’s a good thing. Rushing leads to mistakes, delays, and costly surprises. A thoughtful process, on the other hand, provides clarity, confidence, and a home that genuinely enhances your life.

So, yes, but how long?

Using a typical project timeline as a guide, here’s what I believe the journey generally looks like. The 'Stages' numbered below follow the Royal Institute of British Architects RIBA work stages of a typical project.

Stages 1-2: Feasibility, Surveys, and Sketch Design Stage (Week 1–8)

Once you appoint your architect, the first couple of months focus on understanding your home, your needs, and the possibilities.

This stage usually includes:

• A feasibility study

• A measured survey by a digital surveyor

• Existing plans and elevations

• Early sketch design options

• A design review meeting

• An initial budget estimate

  
  

This is the moment where ideas become real. You start to see what’s possible, what’s practical, and importantly, what’s feasible within your budget.

Typical timeframe: 1–2 months

Stage 3 part 1: Refining the Vision Stage (Month 2–4)

With initial ideas agreed upon, the design develops in more detail. This is where the project begins to take shape and gains momentum.

This stage usually includes:

• Refined layouts and elevations

• Material considerations

• Discussions about light, flow, and function

• A second design review

• A budget update to keep everything aligned

  
  

By the end of this stage, you will have a clear, confident design ready for planning.

Typical timeframe: 1–2 months

Stage 3 part 2: Planning Application Stage (The First Scary Bit) (Month 4–7)

Once the design is ready, your architect prepares the planning application or applies for a Planning Permission or Lawful Development Certificate. If your home is listed, then a Listed Building application would also be included in this stage.

This includes:

• Drawings

• Design statements

• Supporting documents

• Any required reports (heritage, ecology, drainage, tree report etc.)

  
  

After submission, the waiting begins. Most councils take 8–12 weeks to make a decision, though complex or rural Sussex sites can take longer. There’s nothing we can do to hurry the process along, but we can make it as seamless as possible, which is certainly helpful.

Typical timeframe: 2–3 months (sometimes more, which can be frustrating, but is unavoidable)

Phase 4: Turning Project Ideas into Buildable Plans (Months 7–10)

Once planning is approved, the technical stage begins. This is where the project becomes construction-ready.

This stage includes:

• Detailed technical drawings

• Structural engineer design

• Building Regulations checks

• Coordination with specialists (drainage, energy, glazing, etc.)

  
  

This is the most detailed part of the process, ensuring your builder can price accurately and build safely.

Typical timeframe: 2–3 months

Phase 5: Finding the Right Team (Months 10–12)

With technical drawings complete, you can approach builders for quotes.

This stage includes:

• Sending out tender packs

• Reviewing quotes

• Meeting contractors

• Making a final selection

• Builder lead-in time (often several weeks)

  
  

Good builders are in demand, so it’s normal to wait for availability.

Typical timeframe: 1–2 months (plus lead-in)

Phase 6: The Build Begins! Hooray! (Month 12 Onwards)

Only now—roughly a year after the initial idea—does construction typically begin. It feels like forever, but without getting the foundations right (the technical foundations, not the actual ones!), you will end up in real hot water. The day you break ground on your project is a great day, and it’s worth waiting for.

The build length varies depending on the project. Typically:

• Small extension: 3–4 months

• Medium extension: 5–7 months

• Large renovation: 8–12 months

• Whole house transformation: 12+ months

  
  

In total, a realistic timeframe to work towards is 14–24 months. This may be surprising, but that’s the reality of thoughtful design, careful planning, and high-quality construction.

A home project is a marathon, not a sprint. With the right team, it’s a deeply rewarding journey.

Conclusion: Embracing the Journey

As you embark on this journey, remember that every step is essential. Each phase builds upon the last, leading you closer to your dream home. So, take a deep breath, embrace the process, and enjoy the ride. After all, a beautifully designed space is worth the wait.

And if you’re looking for expert guidance along the way, don’t hesitate to reach out. I’m here to help you navigate this exciting adventure!