Interior Designer interview questions and answers

I prepare a brief checklist before the meeting. I ask who lives in the home, their daily routine, storage needs, work-from-home needs, pets, and any family members with mobility needs. I ask them to share photos of spaces they like, and I note what they dislike too. Then budget, timeline and whether they are living in the house during work. I also explain our process, fees, number of design revisions and how site changes are charged. After the meeting I send a written summary within two days and ask them to confirm it before I start concept work.

I start with the work triangle between the sink, the cooking range and the fridge, keeping the path between them short and free of through traffic. Then I choose the layout that suits the room: L-shape, U-shape, parallel or straight. I keep standard ergonomics: counter height around 850 to 900 mm depending on the user’s height, counter depth about 600 mm, and around 600 to 650 mm clear space between the counter and wall cabinets. I place the hob away from windows to avoid draughts, plan the chimney duct route early, and give the sink a window if possible. Tall units go at the ends so they do not break the counter.

I plan three layers. Ambient light gives general illumination, usually cove lights or evenly spaced downlights. Task lighting goes where people read or work, like a floor lamp by the sofa. Accent lighting highlights art, texture walls or shelves with spotlights or LED strips. For homes I prefer warm white, around 2700 to 3000 K, because it feels relaxed, while study areas can use neutral white around 4000 K. I put the layers on separate switches or a dimmer so the client can change the mood. I also avoid placing downlights directly above the TV to reduce glare on the screen.

For carcasses below the sink and near water, I prefer boiling water proof plywood, BWP grade, because moisture there is constant. For other cabinets, a good quality BWR plywood can work within budget. For shutters, laminates are durable and economical; acrylic gives a high-gloss look but shows scratches; PU paint gives a seamless finish but costs more and needs careful application. Edge banding must be done well, because water enters through open edges. Hardware matters as much as boards, so I use soft-close hinges and full-extension channels from reliable suppliers. On a recent project, the client chose acrylic for uppers and laminate for lowers to balance look and wear.

I prepare the BOQ from final drawings, room by room and trade by trade: civil changes, electrical, plumbing, false ceiling, carpentry, painting, flooring and loose furniture. Each item has a clear description, specification, unit and quantity, like square feet for ceilings and running feet for skirting. Then I get quotes from two or three vendors per trade, and compare them item by item, not just on the total. I add a contingency, usually 5 to 10 percent, and list exclusions clearly. For a 3BHK project, a detailed BOQ let the client see that most of the budget was going into carpentry, and they reprioritised.

A furniture layout plan with dimensions, then a civil changes plan showing walls to be built or removed. The electrical layout shows switchboards, sockets and light points with heights, and a reflected ceiling plan shows false ceiling levels, coves and light positions. Plumbing points for kitchen and bathrooms, a flooring plan with tile layout and starting points, and wall elevations for areas like the TV wall and kitchen. Finally, carpentry details for every piece of furniture with sections and material notes. During my internship, I prepared the electrical layout for a 2BHK and learnt to mark every socket height from finished floor level.

First, civil work: breaking or building walls, and waterproofing in wet areas. Then electrical and plumbing concealed work, followed by wall plaster repairs. Next the false ceiling framework, with electrical wiring for ceiling lights done before boarding. Flooring comes next, and then carpentry, which is usually done on site or installed from a factory. After that painting, starting with putty and primer, and the final coat after carpentry is installed. Last come light fittings, sanitary fixtures, hardware and deep cleaning. Doing flooring after heavy civil work and final paint at the end avoids damage and touch-ups.

I use a light, limited colour palette on walls and ceilings so boundaries recede, and I keep the floor continuous in one material without borders. Mirrors placed opposite a window reflect light and views. Furniture with visible legs shows more floor, which makes a room feel bigger. I use built-in storage up to the ceiling rather than separate cupboards, and keep shutters in the same tone as the wall. Lighting also helps: cove lights wash the ceiling and make it feel higher. For a 90 square foot kids’ room, a wall bed and a single colour for walls and cabinets freed up space for a study table.

I use AutoCAD for all technical drawings: plans, electrical layouts, ceiling plans and carpentry details. For concept and 3D views I use SketchUp, and I render with V-Ray to show clients realistic materials and lighting. For quick mood boards I use Photoshop or Canva. I also keep BOQs and vendor comparisons in Excel. In my last role, I built a SketchUp component library of our standard wardrobes and kitchen modules with correct sizes, which cut modelling time for new projects and reduced mistakes in carpentry drawings.

Safety comes first, so I choose floors with good slip resistance, especially in bathrooms and kitchens, such as matt or anti-skid vitrified tiles rather than glossy ones. I avoid level differences between rooms, or I mark them clearly with contrasting colour and add a small ramp where needed. I avoid loose rugs. In bathrooms I add grab bars near the WC and in the shower, and plan a walk-in shower instead of a raised step. Good lighting with switches near the bed and night lights along the path to the toilet also reduce falls.

Before work starts, I share approved drawings, samples and a trade-wise schedule with each vendor, and agree payment milestones linked to completed stages. I visit site at fixed times each week and check against a checklist: line and level of the false ceiling, board thickness and edge banding in carpentry, and socket heights. I keep approved material samples on site, so substitutions are easy to spot. Issues go into a site log with photos and a date to fix. On a recent apartment, catching wrong plywood grade at the delivery stage saved us a full wardrobe rebuild.

A client complained that the living room wall panelling looked darker than the render. I visited the next day and compared it with the approved laminate sample, which matched. The real issue was that the lighting was cooler than planned because the electrician fitted 4000 K strips instead of 3000 K. I apologised for missing it during inspection, got the strips replaced at our cost within a week, and the panelling looked as expected. I now check light colour temperature when fittings arrive, not after installation.

Midway through a 2BHK project, the client reduced the budget by about 20 percent due to a family expense. I sat with them and ranked every item into must-have, nice-to-have and later. We kept the kitchen and wardrobes because they are hard to redo, replaced the planned wooden flooring in bedrooms with wood-look vitrified tiles, and moved the TV wall panelling and loose furniture to a later phase. I revised the BOQ and schedule within three days. The client moved in on time and completed the second phase six months later with us.

Our kitchen fabricator told us, two weeks before handover, that the shutters would be delayed by ten days because of a machine breakdown. I asked for the exact status of each item. The carcasses were ready, so we installed them on schedule and fitted the countertop and appliances. The client could use the kitchen with temporary open shelves. I informed the client directly with a revised date for the shutters, rather than waiting for them to discover it. The shutters arrived eight days later, and the client appreciated being told early.

During my internship, a client wanted glossy black tiles in a small, north-facing bathroom. I was worried it would feel dark and show water marks. With my senior’s approval, I made two quick 3D views, one with black tiles and one with a charcoal matt tile on one wall and lighter tiles elsewhere, and showed both under the actual lighting plan. I explained the maintenance issue simply. The client chose the second option. I learnt that showing options visually works better than simply saying no.

In my first project, I measured a bedroom wall for a wardrobe but missed a beam projection near the ceiling. The carpenter found it during installation, and the top loft did not fit. I told my senior immediately and went to site the same day. We reduced the loft depth near the beam and adjusted the shutter, which cost one extra day. Since then, I measure every room with a checklist that includes beams, columns, windows, switchboards and floor slope, and I take photos with a tape visible.

Last year I handled four apartments in different stages across the city. I grouped site visits by area to save travel, and fixed two visits per site each week. Each site had a messaging group with the client and vendors, and a shared sheet with open issues and target dates, which I updated after every visit. I gave the junior designer responsibility for drawings and material ordering on two sites, with a daily ten-minute call. All four handed over within a week of their planned dates, and I learnt to keep one day a week free for emergencies.

I like that your studio focuses on functional homes with natural materials rather than heavy decoration, and I saw how you used cane and oak in compact apartments. Most of my portfolio is residential, including two small apartments where storage was the main challenge. I also noticed you handle turnkey execution, and I want to grow in site management, not only design. I can contribute immediately with AutoCAD drawings, SketchUp models and vendor coordination, while learning your approach to detailing.

I have two years of experience in residential design and execution, and my current salary is ₹3.6 lakh a year. For this role, which includes handling projects end to end, I am expecting around ₹4.5 lakh. I would also like to know whether there is a travel allowance for site visits and any project-based incentive, since that affects the overall package. I am flexible if the role gives me more responsibility for execution and client handling.

Yes. From my internship I know many clients are only free on weekends for meetings and material selection, and site work needs regular checks. I am happy to travel across the city for site visits and to spend time at showrooms with clients. I would prefer a compensatory day off during the week when I work weekends, which I understand is common in studios. I have my own scooter, so travelling between sites is easy for me.