New builds
Custom homes and light commercial buildings, designed around your site, budget and programme.
We design and develop curated spaces that meets your project goals
100+
Curated Projects Delivered
100%
Fixed-Price Itemised Quotes
6 years
Workmanship Guarantee
£10M
Fully Insured & Vetted Trades
A clear plan from the first visit to the final handover
Celdesign manages residential and commercial building work across London & the South East. We look after the survey, design coordination, costs and site delivery, so you always know what is happening and what it will cost.
Extensions
Single-storey and loft extensions that add usable space and sit well with the original building.
Refurbishment
Strip-outs and full refits of existing properties, including structural alterations and services upgrades.
Commercial fit-outs
Offices, shops and hospitality spaces built to brief, with work phased around live operations.
Planning, building control and site delivery under one roof
We handle the paperwork that slows most projects down: planning checks, Building Regulations applications and inspection dates. Our site team then delivers the work to the approved drawings.
View our projectsProject Ballpark Estimator
Select your proposed scope and property footprint to see typical starting investment ranges and realistic site timelines.
Estimated Investment Range
£120,000 – £155,000
Estimated Programme: 14 – 18 Weeks
Book survey for this project
One team, one programme and one named contact from the first survey to the final snag.
The Celdesign Standard
Building work should be transparent and orderly. We eliminate uncertainty through structured site management.
01
Itemised Pricing
Every element of labour, plant and material is itemised before you commit, with no hidden variations.
02
Named Site Manager
You have a dedicated manager on site running daily progress, coordination and quality checks.
03
In-House Approvals
We handle permitted development, planning applications, Building Regulations and council inspections.
04
Certified Handover
Every finished space comes with signed completion certificates, product warranties and an aftercare pack.
Client feedback from recent builds
What property owners and commercial clients say about working with our team.
“Celdesign turned our Victorian terrace renovation into a seamless process. The fixed quote was strictly adhered to, and the weekly progress reports gave us complete confidence.”
“From handling our planning permissions to the final handover, the craftsmanship on our rear kitchen extension was exceptional. Completed right on programme.”
“Delivered our boutique studio fit-out two weeks ahead of schedule without disrupting ongoing business operations. Transparent and professional throughout.”