How to plan a home renovation project from start to finish

Planning a renovation from start to finish involves a lot of decisions, a lot of money talk, dust and typically lots of those moments where someone asks where something like a socket is going and everyone looks at each other.

The good news is that most renovation problems do not come from one huge mistake.

They usually come from a lot of small things being unclear, and it all adds up. You want to be really clear on:

• What is actually being changed
• What is included in your quotes
• All of those layout decisions before first fix
• Who is supplying what
• When things need to be ordered by
• What happens if something changes

So the aim is not to create a perfect plan that never changes.

You cannot predict everything, like discovering rotten joists, but you can make enough of the predictable decisions early so the project has something solid to work from.

Before you get into products, builders, tiles, paint colours or Pinterest boards, work out what the renovation is actually meant to solve.

• What is not working now?
• Who uses the space?
• What needs to function better day to day?
• Are you renovating for yourself or to sell?
• Is this a cosmetic update or a bigger layout change?
• What absolutely has to happen?
• What would be nice if the budget allows?

This is where a needs and wants list helps.

Needs are the things the renovation has to deliver. Wants are the things you would love, but could compromise on. That distinction becomes very useful later when budget, space or build constraints start making decisions for you.

Get started with our free template renovation planner.

Before you plan too far, you need to understand what you are working with.

This is especially true if you are renovating an older property, buying a house to renovate, or opening up walls, floors or ceilings.

• A building survey
• Structural advice
• Damp or timber checks
• Roof checks
• Drainage checks
• Electrical inspection
• Heating or plumbing checks

There is no point planning expensive finishes if the roof, joists, wiring or pipework need attention first. Older homes in particular can hide problems until work starts.

A to-scale plan is one of the most useful things you can do early. It helps you understand what actually fits before anything is ordered or built.

• Walls
• Windows
• Doors
• Ceiling heights
• Structural elements
• Chimney breasts
• Pipe boxing
• Soil pipe locations
• Radiators
• Existing sockets and switches
• Floor levels or awkward changes in level

Then start testing the layout.

It is much easier to move a toilet, island, sofa, shower screen or radiator on a plan than after someone has started cutting holes in walls.

Read more on what needs to be decided before first fix?

Not every renovation needs planning permission. But that does not mean you can skip the checks.

• Planning permission
• Permitted development
• Building regulations
• Party wall matters
• Listed building consent
• Conservation area restrictions
• Structural engineer input
• Building control sign-off

• Extending
• Converting a loft
• Removing or changing walls
• Changing the roof
• Creating a new bathroom
• Changing drainage
• Working near a shared wall
• Changing windows or external doors
• Renovating a listed or conservation property

Do this early. Permissions and approvals can affect the design, the budget, the order of work and how quickly you can start.

A renovation budget is not just the cost of the things you can see.

• Labour
• Materials
• Fixtures and fittings
• Professional fees
• Surveys
• Structural calculations
• Planning or building control fees
• Skips
• Delivery costs
• Temporary accommodation if needed
• Storage
• Contingency

Contingency is not optional. It is the bit that stops the whole project falling apart when something hidden turns up.

Also, try not to spend the contingency before work starts. It is tempting. Do not do it to yourself.

This is where renovation planning gets underestimated. A lot of things that feel like finishing decisions actually affect the build.

• Wall mounted taps affect pipework
• Concealed showers affect wall depth
• Wall hung toilets need frames and cistern space
• Kitchen appliance positions affect plumbing and electrics
• Lighting affects first fix wiring
• Sockets and switches need exact positions
• Towel rails and radiators affect pipework
• Shower niches need planning before walls are finished
• Floor finishes can affect thresholds and door clearances

If it has a component that goes inside a wall, floor or ceiling, it needs deciding before first fix.

You don't need to choose every product before requesting quotes. What matters is having enough detail that every trade is quoting for the same job.

• A layout
• Measurements
• What is staying and what is moving
• Known structural changes
• Key fixtures and fittings
• Appliance positions
• Lighting and electrical requirements
• Heating changes
• Finishes where known
• Who is supplying what
• Photos of the existing space

Read more on: How do I find good trades for my project? and What should be in a building contract?

The people you hire will shape the project. Recommendations are useful, but they are only one part of the decision.

• Similar past projects
• References
• Reviews
• Communication style
• Availability
• Whether the quote is detailed
• Whether VAT is included
• Whether labour and materials are separated
• What is excluded
• Whether the quote is fixed or estimated
• Payment terms

If one quote is much cheaper than the others, check why. It might be a good deal. It might also be missing half the job.

Before work starts, make sure the agreement is written down. For small projects, that might be a clear written scope. For larger projects, it may mean a proper building contract.

• What work is being done
• How much it will cost
• When it is expected to happen
• Who is supplying what
• How changes will be priced
• How payments will work
• What happens if there are delays

Related reading: Should I hire trades or can I do it myself, Making a contract and How to work well with your trades

Every renovation is different, but the broad order usually looks something like this:

• Strip out and demolition
• Structural work
• Windows, doors or major openings
• First fix plumbing and electrics
• Heating and ventilation routes
• Insulation, boarding and plastering
• Flooring preparation
• Tiling or fitted finishes
• Second fix plumbing and electrics
• Fitted furniture or kitchen installation
• Decorating
• Snagging

A kitchen renovation has its own sequence because appliances, cabinets, worktops, plumbing and electrics are all connected. A bathroom needs even more careful early planning because plumbing, waterproofing, tiling, ventilation and small fixtures all affect each other.

The general rule is simple: hidden work first. Pretty work later.

Read more on what order to do what and when for a kitchen renovation and where to start planning a new bathroom.

A lot of renovation delays come from things not arriving when they are needed, and unexpected lead times (tiles in particular can have a surprisingly long lead time!).

• Tiles
• Sanitaryware
• Taps
• Shower valves
• Kitchen units
• Appliances
• Radiators
• Lighting
• Flooring
• Handles
• Trims
• Grout
• Paint
• Specialist fittings

Check returns policies just incase and make sure you check deliveries as soon as they arrive. Things can turn up:

• Damaged
• Incomplete
• In the wrong size
• In the wrong finish
• Without the parts needed for installation

If you are supplying items yourself, make sure your trade knows exactly what you have ordered, what is included and when it is arriving.

Planning a bathroom? Read more on the things to consider if you are supplying the sanitaryware.

Renovation work spreads. Dust, tools, deliveries, access routes and storage usually affect more of the house than the room being worked on.

• Clear the work area properly
• Empty cupboards and storage
• Protect floors through access routes
• Move fragile items
• Seal off rooms where possible
• Plan where materials will be stored
• Agree where tools can go
• Think about parking and access
• Keep pets and children away from work areas
• Decide how you will cook, wash or work if the project affects everyday rooms!

If you are living at home during the renovation, try to keep one area clean and usable. It will not make the renovation glamorous. It will make it slightly more survivable.

Related reading: Tips for surviving a bathroom renovation

Even with a good plan, decisions will come up on site. Someone may ask:

• Exactly where does this switch go?
• Which way should the door open?
• Where should the tiles finish?
• Is this centred to the wall or the unit?
• Are we keeping this pipe boxing?
• Who is supplying the missing part?

The important thing is to keep decisions clear. Agree how you will communicate:

• WhatsApp
• Email
• Shared document
• Weekly check-in
• One main point of contact

For anything that affects cost, timing or scope, get it in writing.

• What does this change?
• What does it cost?
• Does it affect the timeline?
• Does it affect anything already ordered?
• Does it affect another trade?

Small changes can be fine. Small changes that nobody tracks are where projects get messy.

Read more on how to work well with your trades.

No renovation goes exactly to plan. That does not mean planning was pointless. It means the plan gives you something to adjust from.

You may discover old wiring, awkward pipework, damp, uneven floors, hidden structure or a product that does not quite work once the room is opened up.

The goal is not to avoid every surprise. The goal is to avoid the avoidable ones.

At the end of the project, do not rush straight into "done". Walk through the work carefully and make a snagging list.

• Doors and drawers opening properly
• Sealant and grout lines
• Paint touch-ups
• Sockets and switches working
• Lights and extractor fans working
• Plumbing connections aren't leaking
• Heating controls work
• Any damaged finishes
• Missing trims or covers

Snags are normal. The important thing is that they are recorded clearly and agreed before the final payment is made, depending on your contract or payment arrangement.

• A simple layout change can affect plumbing, electrics and cost
• A builder cannot quote accurately from vague ideas
• Some finishing decisions need to be made before first fix
• Materials need checking as soon as they arrive
• A cheap quote is only useful if it covers the same work
• WhatsApp messages are not a renovation plan
• If you are supplying products, you are usually responsible for checking they fit and arrive complete
• You need to plan how you will live around the renovation, not just how the finished room will look

If you want the short version, it looks like this:

• Work out what the renovation needs to achieve
• Check the condition of the property
• Create a to-scale plan
• Understand permissions and approvals
• Set the budget and contingency
• Decide what needs choosing before first fix
• Prepare a clear brief for quotes
• Choose trades and agree the scope
• Plan the order of work
• Order materials early
• Prepare the house
• Keep decisions and changes clear during the build
• Snag properly at the end

A renovation will never be completely tidy. But a clear plan makes it much easier to get quotes, communicate with trades, make decisions in the right order and avoid the moments where everyone realises too late that something important was never actually decided.