ICS Builders · Rolvenden · Est. 2002
Period restoration, extensions and new builds in the Weald of Kent.
Family-built since 2002. Two generations of the Sayer family, working from Rolvenden Layne across Tenterden, Cranbrook, Hawkhurst, Biddenden and the wider Weald.
What we build
Six trades, every one done in-house.
- Extensions — photo coming
Extensions
Single-storey, side-return, wraparound, two-storey.
- Period restoration & listed buildings — photo coming
Period restoration & listed buildings
Lime plaster, peg tiles, oak frame, listed-building consent navigated.
- Refurbishments — photo coming
Refurbishments
Full house, kitchen, bathroom.
- Loft conversions — photo coming
Loft conversions
Dormer, hip-to-gable, mansard, Velux.
- New builds — photo coming
New builds
Bespoke new build on outlying farmland.
- Outbuilding restoration — photo coming
Outbuilding restoration
Barns, oasts, stables, garden rooms.
Recent work
From oak-framed extensions to listed-building restoration.
- The Granary — Rolvenden
The Granary
Rolvenden
Sensitive restoration of a Grade II listed Wealden cottage, retaining historic character throughout.
- Loft conversion — Beckley
Loft conversion
Beckley
Loft conversion completed in Beckley.
- Side & rear extension — St Michael's
Side & rear extension
St Michael's
Single-storey side and rear extension for a family that needed more space.
What clients say
“Cully helped us out in an emergency and built our walk-in wardrobe. Could not have asked for a more professional approach and a beautiful finish. So happy and our bedroom is back to a liveable space!”
The Sayer family
Two generations on the same Kent drives.
Ian Sayer founded ICS Builders in October 2002, working out of Rolvenden Layne. His son Culley joined the firm in 2015, and is now a director and person with significant control. Debra Sayer handles the office side.
Two decades of work on the same Kent drives — extensions, refurbs, listed buildings, oast and barn conversions — means we know how period properties around here have been built and what they need to keep standing for another century.
- Trading
- 23 years
- Generations
- 2 Sayers
- Based
- TN17
Guides
What we know about building in the Weald.
Updated May 2026
How much does an extension cost in Kent (2026)?
Honest cost guide for homeowners in the Weald of Kent: extension types, what drives the price, hidden costs, and current 2026 bands sourced from RICS BCIS and Federation of Master Builders data.
Updated May 2026
Planning permission for an extension in the High Weald
What the High Weald National Landscape designation means for extensions in 2026 — permitted development vs full planning, Article 4 directions, the application process, and the design choices that actually get approved.
Updated May 2026
Listed Building Consent in Kent — the process
What needs Listed Building Consent, the criminal-offence dimension, how to work with conservation officers in Ashford, Tunbridge Wells and Folkestone & Hythe, and how to coordinate with planning permission.
Planning a project?
Let's talk about what you're building.
Tell us about your project — extension, refurb, listed-building work, new build, anything in between. We'll come and have a look, talk it through, and put together a quote.