— Our Services
Extensions
— About This Service
Extensions
JAD Ward Construction Ltd designs and builds practical extensions that increase space and value, from single‑storey rear additions to two‑storey side returns and commercial enlargements. Work includes structural alterations, RSJ installs, new foundations, groundworks and full internal finishes. Founder‑led with 42 years’ experience, the team works to tight programmes, keeps sites clean and liaises with architects and building control throughout.

— Our Process
How It Works
Survey & Feasibility
On‑site survey to check foundations, party walls, drainage and access; we issue a clear feasibility note, scope and provisional programme so you know what to expect.
Structural Design & Approvals
We coordinate structural drawings and calculations with your architect or ours, handle building control submissions and advise on party wall and planning requirements.
Build & Finish
From strip‑out, excavation and concrete foundations to brick/blockwork, roof alterations, services and joinery — we complete works with a final snagging inspection and tidy site handover.
— Benefits
Why Choose us for Extensions?
42 Years' Practical Expertise
Founder‑led knowledge across structural work and finishes ensures sensible details, correct sequencing and durable results on brick, timber and steel builds.
Reliable Programmes & Tidy Sites
Known locally for punctual starts, clear communication and clean, organised sites that reduce disruption to families and businesses.
Architect‑Recommended Local Partner
Regular recommendations from architects and a strong local network mean smooth handovers on technical builds within a 40‑minute radius of Brackley.
Practical design & build for homes and businesses. Extensions must work on day one and for decades after. We focus on robust, buildable solutions — correct foundations, adequate bearing points, properly designed RSJs and DPC continuity — so the extension integrates with the existing structure. Whether a kitchen extension in a Victorian terrace, a two‑storey side extension on a semi or a commercial rear extension for a workshop, we use trade‑proven methods and durable materials to avoid common failures such as damp, movement or poor thermal performance.
Full service from groundworks to finishes. Our scope covers excavation and strip‑out, reinforced concrete or pad foundations, blockwork, brickwork, roofing alterations, insulation, mechanical and electrical services, plastering and joinery. We coordinate with structural engineers and architects, manage building control inspections and leave the site tidy every day. Operating across Brackley, Bicester and Northampton within a 40‑minute radius, JAD Ward Construction delivers measured, dependable extensions that add usable space and long‑term value.
— FAQ
Frequently Asked Questions
It depends on the size, location and type of extension. Many single‑storey rear extensions fall under permitted development, but two‑storey additions or works affecting a listed building may need planning. We review your property and advise whether a planning application or a prior approval is required, and can coordinate with your architect or agent.
Ready to add space that’s built to last?
— Other Services
