Landed interior design from terrace house photos to handover

Write a household brief that can be tested

Pick a few photos that each fix a different problem, such as a kitchen that opens onto the back garden, a stair with storage built in underneath or a bedroom with a full wall of wardrobes. Write one line beside each saying what it would fix in your house, then photograph the matching spot at home so the designer sees both. If most of your saved photos are about light, read ways to bring more light into a dark terrace house first, because layout, lighting and finishes can each change how bright a room feels before anyone talks about removing a wall.

A photo becomes useful once the designer can test it against your plan. On a terrace, mark where the front and back openings are, where the stair sits and which rooms lie between them. A wide bungalow living room may still give you a floor or ceiling idea, even if its layout needs more width than your terrace has.

Use the room-by-room brief to add what photos can’t show, such as which furniture stays, what needs storing and where you want privacy from visitors. If an older family member is at risk of falling at home, AIC suggests having an occupational therapist or healthcare professional check the home for hazards. A photo can’t tell you where a grab bar should go for that person.

• Use the landed-home room brief

Establish the physical scope and uncertainties

Split what you want into two lists. The first is new paint, built-in cabinets, lights and loose furniture, which change how the rooms look and work without touching the structure. The second is building work, such as knocking down or opening up a wall, raising a floor, enclosing a yard or moving pipes and drains. Approvals, structural checks and hidden problems come in on the second list, so it needs answers before the layout is fixed.

BCA says owners may have to submit building or structural plans before renovating, though some minor works are exempt, and it advises owners to engage a qualified person (QP) to advise on the clearances needed from BCA and other authorities. Work that needs no plans at BCA can still need approval elsewhere. URA says that, generally, alterations or additions need planning permission if they increase the gross floor area, and that whether a renovation such as a room extension needs it depends on the property type and the works.

Some answers only come from checking the house itself, such as whether a wall holds up the floor above, where the pipes and drains run, or whether a damp patch hides a leak. Your approved plans are a start, and BCA lets building owners apply to view and buy them. The structural questions go to a QP, meaning a registered architect or professional engineer. Until those answers are in, mark any layout that depends on them as unconfirmed, so nobody prices or orders anything around it.

Appoint roles by deliverables

Ask the designer to list what the fee includes, item by item. That might be measuring up the house, layout plans, drawings for the built-ins, a lighting and power-point plan, a list of the chosen materials and fittings, help buying them, comparing contractors’ quotes and visits to check the work on site. A package called ‘full design’ tells you little until those items are written down.

To compare designers, show each one two or three of your saved photos and ask how they would adapt each to your house. A designer who explains what the photo depends on, and what they would change to make it fit, is showing you the work the fee pays for.

If walls, floors or the structure are changing, the plans and structural checks come from a QP. Ask for that person’s name and whether they are appointed on your project, and if it’s an architect, check their name on the Board of Architects register. A firm saying it works with architects is not the same as an architect being appointed to your house.

Then ask who makes the trades fit together. The carpenter’s cabinets have to meet the electrician’s power points and the plumber’s sink outlet in the right places, and someone has to send every trade the latest drawing whenever something changes. If you plan to buy some lights, appliances or fittings yourself, that person needs the exact models early, and buying your own renovation fittings explains who should check, receive and install them.

Review layouts through the household’s tasks

Walk ordinary tasks through the plan with the furniture drawn in. Carry the groceries in, open the fridge while someone is cooking, seat visitors and get to the bathroom at night. Look for spots where two people need the same narrow space at once.

Then check the parts that move. Look at the kitchen with the real appliance sizes and their doors open, the wardrobes drawn with what goes inside them, and the bathrooms with the door and shower screen swinging. A rendering shows the mood of a room, not whether the dishwasher door hits the island.

Settle the lighting the same way, by what happens in each room. Decide where you need bright light to cook or read and where you want softer light in the evening, and only then choose the switches, dimmers and other controls. Better lighting without a full false ceiling covers the fittings side of that choice.

Go back to your photos at this stage and ask what made each look possible. A smooth ceiling with no boxed-in sections may mean the aircon pipes and wiring have to run another way, and a wide opening between two rooms may mean taking out part of a wall that holds up the floor above. That is A&A work, which needs a QP’s advice and possibly plans approved by BCA before it starts. Keep the idea and let the designer adapt its size and construction to your house.

Compare two layouts using the same furniture you’re keeping and the same must-have rooms. If one only works with a smaller dining table or loses a wall of storage, ask for that to be shown on the drawing. The better plan is the one that suits how your household lives, which may not be the one closest to your photo.

• Coordinate kitchen appliance openings

Approve a coherent, maintainable selection

Look at the samples together, in the room they’re for, in daylight and under the lights you plan to use. A small chip under showroom lights won’t show how a whole floor or wall varies. Before anything is ordered, write down the exact product and finish codes, which way the grain or pattern runs and how the edges meet where two materials join.

Read the care instructions against how each room is actually used. A worktop beside the wet kitchen sink, a floor at an open patio door and a bedroom floor face very different wear. Where a finish hides equipment, such as an aircon unit above the ceiling or pipes behind a panel, agree where the access hatch goes so it can be reached without breaking the finish.

Lighting maker ERCO notes that a light set close to the wall and shining along it brings out the material’s texture, while light spread evenly across a wall gives it an even brightness. So approve a textured feature wall together with its lighting. The same stone or fluted panel can look calm under even light and show every ridge when lit from close up.

Compare fees and construction scope separately

The design fee and the building quote pay for different things. The fee pays for decisions made on paper, and the quote pays for the work those drawings describe. A designer earns the fee most clearly when the job changes the layout; when the layout stays, you need far less design work, as our landed interior design page explains.

Ask the design proposal to say how many rounds of layout changes the fee includes, what an extra round costs and who buys the lights, appliances and fittings. Then ask every building quote to price the same latest drawings and materials list, or two similar totals may be buying different jobs.

Keep one budget with separate lines for the design fee, any architect or engineer fees, the building work, the built-ins, fittings you buy yourself, furniture, and rent or storage if you move out during the work. An amount set aside for something not yet chosen, or not yet opened up and checked, is a placeholder rather than a quoted price, so keep it labelled that way. How much to keep in reserve for hidden problems and changes shows how to size it from the risks that are still open.

CaseTrust gives you a yardstick for the contract. Renovation businesses it accredits must use the CaseTrust Standard Renovation Contract, which sets out work and payment schedules. For those businesses, payments are collected in phases on agreed milestones, the first deposit is capped at 20% of the total cost, any variation has to be agreed in writing before the work, workmanship carries a 12-month warranty from completion on the contract’s terms, and prepayments are protected so you can claim back the unused part if the business closes. Those terms bind only accredited businesses, so check that a firm is accredited before counting on them, and measure any other contract against them to see what it leaves out.

Release work when its dependencies are resolved

Some choices have to be made before the next job can start. The appliance models have to be fixed before the cabinet openings are made, and the aircon pipes, wiring and access hatches have to be settled before the ceiling is closed up. Doing the house room by room still needs those shared routes planned first, or a finished room may have to be opened up again.

On site the work runs from the messy jobs to the finishes, with hacking and structural work first, then pipes and wiring, then floors, built-ins and paint. How long it all takes depends on approvals, made-to-measure items and repairs found once walls and floors are opened, which our landed interior design page goes through.

When you change your mind, ask for the change in writing before anyone acts on it, showing what changes, which drawings and trades it affects, whether anything already ordered or made is wasted, what it costs and how much it delays the work. A comment made on site shouldn’t quietly become an instruction to the carpenter.

Approve each drawing by its revision number and note anything still open. Older versions should be marked as replaced, and whoever coordinates the trades should send the latest set to everyone who needs it. Your approval says you’re happy with the design; checking that it is safe to build stays with the QP or engineer responsible for it.

Assess the result against the original brief

At handover, run the same tasks you used to check the plan. Open every cupboard and drawer, try each lighting setting, walk the routes with the furniture in place, and have each installer show you how their equipment works and where it’s reached for servicing. This is your check that the house works for you, alongside the testing the electrician, plumber and other trades are responsible for.

Keep the final drawings, the changes you approved in writing, the product codes, the care instructions and any test records the trades hand over. List defects plainly, each with where it is, a photo and what was agreed to fix it, so nothing gets lost in a chat thread.

Then put your original photos beside the finished rooms. Check that each thing they were meant to fix, such as the kitchen opening onto the garden or the storage under the stair, now works the way you wrote down at the start. If your contract has a workmanship warranty, note the date it starts and what it asks of you.