Single storey rear, double storey and wrap-around extensions across Banbury and the surrounding north Oxfordshire area. We manage the full scope — structural design, planning applications where required, building regulations, trade coordination and internal fit-out — from the first site visit to handover. Most single storey extensions on Banbury’s semi-detached housing fall within permitted development. For properties in the Banbury conservation area or in the village conservation areas across the Cherwell District, we confirm the planning position before any design is committed to. Ground conditions on the heavy clay underlying much of the Cherwell Valley can require deeper foundations — we assess this at the survey stage.
Dormer, rooflight and hip-to-gable loft conversions across Banbury and north Oxfordshire. The post-war semis of Easington, Ruscote and Grimsbury typically convert well with a full-width rear dormer — adding a proper double bedroom and en-suite without touching the garden or requiring a planning application in most cases. The trussed rafter roofs found on the later post-war Banbury estates need the structure replaced with an engineered frame — we confirm the roof type at the survey stage before quoting. Building regulations managed at every required inspection stage. En-suite plumbing designed and installed during the structural phase.
Open-plan conversions, full kitchen refits and kitchen extensions managed as a single complete project. First fix plumbing and electrics in the confirmed positions before units are fitted. Structural work — load-bearing wall removal, beam installation, building control inspection — complete and signed off before the kitchen fitter arrives. For the inter-war and post-war semis of Grimsbury and Easington where the original divided ground floor has never been reconfigured, opening up the kitchen and dining room is consistently the most transformative project available. We manage structural and kitchen scopes together rather than as two separate programmes.
Full strip-out and refits, wet room installations and en-suite additions across Banbury. The correct sequence — strip-out, substrate assessment, first fix plumbing, waterproofing, tiling, sanitaryware installation — is the difference between a bathroom that performs correctly for years and one that causes problems within months. For Banbury’s older Victorian terraces where bathrooms were added into spaces not originally designed for plumbing, a full strip-out consistently reveals conditions that make it the only reliable approach. We manage the full scope as a single coordinated project.
Converting an integral or attached garage into a bedroom, home office, utility or playroom is one of the most cost-effective ways to add usable floor area on a Banbury property. The post-war detached and semi-detached properties across Hardwick, Easington and the newer Banbury estates frequently have integral garages used for storage rather than cars — and that convert straightforwardly into habitable space with building regulations approval. We manage the full conversion scope as standard, including building control notification and inspection.
Permanent, fully insulated garden rooms built from the ground up across Banbury and the surrounding area. Home offices, gym spaces and leisure rooms built to a year-round standard — proper insulation in the floor, walls and roof, permanent foundations, aluminium glazing and a full electrical installation rather than a surface-level kit assembly. Most garden rooms fall within permitted development on Banbury’s residential properties provided size and siting criteria are met. In conservation areas — the Banbury town centre area and the village conservation areas of the surrounding Cherwell District — additional restrictions apply and we advise on the planning position before any design begins.
Whole-house refurbishments, open-plan ground floor conversions, period property work and purchased property renovations. One team managing structural alterations, first fix services, plastering, tiling, joinery and decoration in the right sequence — plastering after first fix, tiling after second fix, nothing in the wrong order. For the Victorian terraces and ironstone properties of the Banbury area, strip-out on older housing occasionally reveals conditions that need addressing before new work begins. We deal with these honestly and directly rather than presenting them as unexpected additions once you have committed to a price.
A single storey rear extension on a standard Banbury semi typically costs £38,000–£68,000 depending on size, specification and whether an open-plan conversion is included. Double storey additions run from £78,000 upwards. Banbury sits in the mid-range for Oxfordshire construction costs — below the Oxford and Cotswolds premium market but above rural north Oxfordshire rates. Finished prices include structural work, glazing, internal plastering and basic decoration. Kitchen fitting within the new space is priced separately.
Most single storey rear extensions on semi-detached and detached properties fall within permitted development — no planning application required. The standard PD depth is 3 metres for semis, extendable to 6 metres through the larger home extension scheme via prior approval with Cherwell District Council. Properties in the Banbury town centre conservation area or the Grimsbury conservation area face additional restrictions — what is straightforward PD elsewhere in the town may require a full application in these locations. We confirm the position for each property at the first visit.