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Interior architecture & decoration

Interiors that feel like home from the first day

Warm materials, soft daylight and furniture chosen for real life. We design and deliver apartments, villas and workplaces from concept to final styling.

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Announcement: new season appointments are open

We are now taking bookings for the new season. Contact us early to secure your preferred date — site visits and quotes are free of charge.

  • Free site visit and written quote
  • Fixed prices and clear schedules
  • Guarantee on our workmanship

Questions? Get in touch.

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Our Services

What we design

From a single room to a complete turnkey renovation — one studio, one team, one consistent design language.

  1. 01Residential Interior DesignComplete interior design for apartments, villas and family homes — layout, lighting, joinery, materials and furniture, planned around your daily life.
  2. 02Office & Commercial InteriorsOffices, cafés, restaurants, boutiques and hotels designed to express your brand, meet regulations and withstand heavy daily use.
  3. 03Kitchen & Bathroom DesignErgonomic, made-to-measure kitchens and calm, easy-to-clean bathrooms — planned down to every drawer, socket and tile joint.
  4. 04Turnkey Renovation & ImplementationWe manage the entire renovation — demolition, installations, joinery, finishes, furniture and styling — with one contract, one schedule and one responsible project lead.
  5. 05Online & Hourly Design ConsultancyExpert advice without a full project: book a video call or an on-site hour to solve a layout, choose colours or put together a shopping list you can implement yourself.

Before / after

See the transformation for yourself

How it looked before we started and the result we delivered — click a photo to enlarge it.

City Apartment in a 1930s BuildingCihangir, Istanbul View the project
Family Kitchen with Oak and OliveModa, Kadıköy, Istanbul View the project

Why Northbytra?

Experience, transparency and warranty in one place

We are a small, hands-on interior architecture studio. Every project is led personally by a senior interior architect, from the first site visit to the final styling. We believe good interiors are calm, practical and made to age beautifully. About Us →

14+

Years of practice

320+

Interiors completed

96%

Clients who recommend us

40+

Trusted craftsmen

Design and delivery in one hand

The team that draws your interior also builds it, so nothing gets lost between design and site.

Detailed drawings

Every joinery piece, lighting point and tile joint is drawn before work starts — no improvisation on site.

Transparent budget

Itemised cost plan from the concept stage, with clear allowances for furniture and decor.

Materials you can touch

Physical sample boards for finishes, fabrics and stone, approved by you before ordering.

Timeline you can trust

A written schedule with weekly site reports and photos, so you always know where things stand.

Final styling included

We don't hand over empty rooms: art, textiles and accessories are placed so the space feels finished.

How do we work?

How we work

  1. 01

    Brief & survey

    We visit the space, measure it precisely and listen to how you want to live or work in it.

  2. 02

    Concept & layout

    Space plans, moodboards and material palette — refined together until it feels right.

  3. 03

    Detailed design

    Technical drawings, lighting plan, joinery details, 3D views and an itemised budget.

  4. 04

    Implementation & styling

    Site management, procurement, installation and final styling before handover.

Renovation and fit-out cost

Calculate your approximate project budget and duration based on area and scope.

m²

Results are approximate preliminary estimates; request a free site survey / quote for exact pricing and performance. The information you enter is not sent anywhere.

Estimated result

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Online Shop

Featured products

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Customer reviews

What do our clients say?

“We were living abroad during the whole renovation and still always knew what was happening thanks to the weekly photos. The flat looks exactly like the 3D views — only warmer.”

Sample client

Apartment renovation · sample review

“They understood how a café actually works — where the queue forms, where the milk goes. We opened on the planned day and guests keep asking who designed the place.”

Sample client

Café project · sample review

“One hour on video solved a living room layout I had been struggling with for a year. The written summary with dimensions and links made the shopping easy.”

Sample client

Online consultancy · sample review

Our Team

Experts who love what they do

Elif Karaca

Elif Karaca

Founder & Lead Interior Architect

Mert Aydın

Mert Aydın

Project & Site Manager

Selin Öztürk

Selin Öztürk

Interior Designer & 3D Visualisation

Leyla Haddad

Leyla Haddad

Decoration, Styling & Procurement

Blog

Latest articles and guides

Frequently Asked Questions

Common questions

Can't find your answer? Contact us.

How much does an interior design project cost?

Design fees are usually calculated per square metre and depend on the scope — a concept only, full technical drawings, or design plus site supervision. After a short call and a site visit we send a fixed-fee proposal, so you know the cost before we start. Construction, furniture and decor budgets are planned separately and itemised from the concept stage.

How long does a typical project take?

For a 100–150 m² apartment, design usually takes 4–6 weeks and implementation 10–16 weeks, depending on the scope of works and the lead time of custom furniture. Kitchen or bathroom renovations are faster: around 4 weeks of design and 4–6 weeks on site. You receive a written schedule before works begin.

Can I use my own contractor?

Yes. Our design packages include complete technical drawings that any qualified contractor can build from. We can also add periodic site visits (design supervision) to check that details are carried out as drawn.

Do you work outside your city?

Yes. We regularly design holiday homes, hotels and cafés in other cities. Surveys and key site visits are planned in advance, and between visits we coordinate through video calls and a local site supervisor.

Can I reuse furniture I already own?

Absolutely — and we encourage it. We photograph and measure pieces you love at the survey, then design around them. Reupholstering a favourite armchair or refinishing an old table often adds more character than buying new.

Let's talk about your space

Book a free 20-minute introductory call. Tell us about your home or business — we'll suggest the right next step and a realistic budget range.