BUILDERS IN WILMSLOW · SK9
JNR Construction is Wilmslow’s definitive design-to-build partner. For SK9 homeowners who demand perfection and architects who need a contractor they can refer without risk — extensions, whole-house renovation, bespoke new builds, and heritage work, managed from feasibility to handover under CDM 2015.
20 Years. 400+ Projects. Federation of Master Builders.
Wilmslow sits in the SK9 postcode district within Cheshire East — an affluent commuter belt of substantial detached homes, Victorian and Edwardian villas, interwar family houses, and rural-edge plots adjoining Styal, Mobberley, Handforth, and Alderley Edge. It is also a town shaped by four conservation areas, multiple listed buildings, a made Neighbourhood Plan, Cheshire East Community Infrastructure Levy, Green Belt boundaries that sit close to many established roads, and a River Bollin flood warning area affecting properties between the A538 Bollin Link and Oversleyford Bridge.
None of that prevents excellent building work in Wilmslow. It does, however, mean that a generic builder is the wrong partner. Most Wilmslow projects of any consequence — a two-storey side extension on a detached home off Alderley Road, a whole-house renovation in Fulshaw before moving in, a structural reconfiguration of a period villa near Hawthorn Lane — fail when the contractor discovers Article 4 controls, a Listed Building Consent obligation, a build-over agreement, or a foundation engineering issue halfway through the programme.
JNR Construction engages before drawings are finalised. We identify the planning, conservation, Building Control, drainage, and ground-condition constraints that determine what is actually buildable on your site — then we build it, as Principal Contractor under CDM 2015, with a single point of accountability from feasibility through to Building Regulations Completion Certificate.
Single-storey, double-storey, and wraparound extensions on Wilmslow’s detached and period homes — engineered for load-bearing integrity, material-matched to existing fabric, and fully compliant with Building Regulations Parts A, B, F, K, and L.
Whole-house renovation for Wilmslow properties before you move in. Structural reconfiguration, open-plan steelwork, drainage upgrades, energy improvements, high-specification fit-out, sequenced & managed under a single point of accountability.
Architect-designed one-off homes and replacement dwellings on Wilmslow’s larger detached plots and Green Belt-adjacent sites. JNR acts as Principal Contractor under CDM 2015 — groundworks through to Building Regulations Completion Certificate.
Dormer, hip-to-gable, and full-mansard loft conversions on Wilmslow detached and semi-detached homes — head-height assessment, Part B fire safety, Part K staircase compliance, and structural roof modifications engineered to specification.
Commercial refurbishment and fit-out for Wilmslow town-centre offices, professional practices, retail, and hospitality — CDM 2015 governance, Part B fire-safety design, and minimum-disruption phasing around live trading hours.
Conservation area and listed building work in Wilmslow — lime mortar pointing, sash window reproduction, breathable repair methods, and Conservation Officer-approved details for Hawthorn Lane, Highfield, St Bartholomew’s, and Styal.
Wilmslow’s conservation areas: Hawthorn Lane, Highfield, St Bartholomew’s, and Styal. Each one shapes what can be built — and how.
Wilmslow sits within Cheshire East Council, which determines all planning applications and operates Building Control. Cheshire East accepts both Full Plans and Building Notice submissions — but for substantial extensions, structural alterations, loft conversions, new builds, and any project involving Conservation Area or listed building constraints, the Full Plans route is the safer one. Design issues are checked before work begins, not discovered on site.
Cheshire East’s Community Infrastructure Levy has been in effect since 1 March 2019. CIL liability needs to be checked on any development that creates chargeable floorspace — but the rate applicable to a specific Wilmslow site can only be confirmed against the current Cheshire East charging schedule and map at the time of application.
Wilmslow has four conservation areas relevant to most residential and commercial construction work: Hawthorn Lane, Highfield, St Bartholomew’s, and Styal. Highfield carries an Article 4 Direction. Where Article 4(2) applies, planning permission may be required for works that would normally be permitted development — including replacement windows, doors, roofs, chimneys, architectural details, boundary treatments, porches, hardstandings, and the painting of previously unpainted brickwork. Article 4(2) typically applies to elevations fronting a highway and to houses rather than flats or commercial properties. None of this prevents the work. It does mean the correct application route must be identified at feasibility, not after groundworks.
The St Bartholomew’s Conservation Area covers the medieval core of Wilmslow beside the River Bollin, including the Grade I listed Church of St Bartholomew, the listed sundial in the churchyard, the Memorial Gardens, historic stone paving on Chancel Lane, and nine listed buildings. The Styal Conservation Area extends to Quarry Bank Mill (Grade II*) and the dispersed farmsteads of the National Trust estate. Fulshaw Hall on Alderley Road is Grade II listed. Listed Building Consent is separate from planning permission and can apply to internal alterations as well as external works.
The Wilmslow Neighbourhood Plan was made in November 2019. It sits alongside the Cheshire East Local Plan Strategy and Site Allocations and Development Policies Document in the development plan framework for the town. Green Belt boundaries sit close to many established residential roads and influence what can be built on edge-of-town plots — particularly replacement dwellings, large extensions, outbuildings, annexes, and rural-edge commercial works between Wilmslow and Styal, Mobberley, Handforth, or Alderley Edge.
River Bollin flood risk affects properties between the A538 Bollin Link and Oversleyford Bridge, including Rivers Street, Cliff Road, Quarry Bank Mill, and Hooksbank Wood. The wider River Bollin catchment flood alert area covers Knutsford, Wilmslow, Macclesfield, and Bollington. For any Wilmslow basement, extension, drainage, or landscaping project within or near the river corridor, flood-risk checking is a feasibility-stage item — not an afterthought.
Ground conditions vary across Wilmslow. The town sits on a level plateau above the Bollin valley within the Cheshire Basin, with clay-bearing superficial deposits and mixed glacial deposits common across the borough. On mature tree-lined plots — particularly the established detached roads off Alderley Road, Manchester Road, Knutsford Road, and Altrincham Road — engineer-designed foundations, root influence assessment, shrink-swell allowance, and heave protection are routinely required. Build-over agreements with United Utilities apply where extensions fall within relevant distances of a public sewer.
We do not make assumptions about any of this. Every JNR feasibility includes a site-specific check of the conservation area mapping, Article 4 register, listed building register, Local Plan policies, flood-risk mapping, public sewer records, and Building Control route.
Four stages. One point of accountability. No gaps between design and build — on every Wilmslow project we deliver.
We engage before drawings are finalised. Julian Rowlands reviews the project brief, the site constraints, and the structural intent — identifying the risks that appear in construction but originate in design. We provide a realistic cost assessment based on the scope, not a low number designed to win the job. If the project is not viable within your budget, we say so at this stage rather than halfway through a build.
Every project starts with a site visit and a structured pre-construction conversation covering: the structural approach (what steelwork, what groundworks, what temporary works are likely to be required), the regulatory framework (which Approved Documents apply, whether CDM 2015 notifications are required, whether Listed Building Consent or Conservation Area approval is needed), and the programme implications (realistic timescales for both the pre-construction phase and the build itself).
This engagement costs nothing and commits you to nothing. It does give JNR enough information to provide an accurate preliminary cost plan — not a ballpark figure, but a structured document showing where the costs are concentrated and why.
Where an architect is already appointed, we engage directly with their drawing package at this stage, providing a buildability review and raising any technical queries before the design is finalised. This is the most cost-effective point at which to resolve structural ambiguities.
We do not begin construction until every pre-commencement obligation is satisfied. This is not caution for its own sake — it is the only way to protect the programme once the build starts.
Pre-construction work on a typical JNR project covers:
Building Regulations. Full Plans application submitted to the Local Authority Building Control or an Approved Inspector. Structural calculations produced by the appointed structural engineer and incorporated into the submission. We coordinate between the structural engineer, the architect, and the Building Control Officer to resolve any queries before an approval is issued — not after work has started.
Party Wall. Where the proposed works affect a boundary wall or involve excavation near an adjoining owner's property, Party Wall Notices are served under the Party Wall etc. Act 1996. We assess which notices are required, prepare the notice documentation, and appoint a surveyor where the adjoining owner requires one. We do not begin works within the Act's scope without the notices being formally in place.
CDM 2015 Construction Phase Plan. On projects where CDM 2015 applies, the Construction Phase Plan is prepared and in place before the construction phase begins. This is a statutory requirement under Regulation 12(1) of CDM 2015, not a discretionary document.
Planning condition discharge. Pre-commencement planning conditions are formally discharged with the Local Planning Authority before groundworks begin. Conditions typically cover materials, drainage, ecology, and construction management — each requiring a formal submission and written approval.
Asbestos. On properties constructed before 2000, we require confirmation of a refurbishment/demolition asbestos survey before any strip-out works commence, per the Control of Asbestos Regulations 2012.
JNR Construction is formally appointed as Principal Contractor under Regulation 5 of CDM 2015 on all qualifying projects. This is not a marketing claim — it is a legal dutyholder appointment, made in writing, before the construction phase begins.
As Principal Contractor, JNR's responsibilities include:
Site management. The site is run to a Construction Phase Plan that sets out the site rules, induction requirements, emergency procedures, and method statements for high-risk activities. Every trade operative on site is inducted. Unauthorised access is prevented. Facilities meeting Schedule 2 of CDM 2015 are in place from day one.
Trade coordination. JNR coordinates all subcontractors and specialist trades — structural steelwork, groundworks, M&E, plastering, joinery, glazing, roofing — to a sequenced programme. Trades are appointed against the specification, not substituted for cheaper alternatives without the client's knowledge.
Variation control. All changes to the agreed scope of works are formally issued in writing by the client or their contract administrator, priced by JNR, agreed in writing, and incorporated into the contract sum before the works proceed. Verbal instruction does not constitute a valid variation.
Progress reporting. Clients receive structured progress updates — what has been completed, what is on programme, what (if anything) is at risk — at agreed intervals throughout the build. You are not left waiting to visit site to find out what is happening.
Quality inspections. Staged quality checks are carried out at key milestones: prior to closing in any structural element, prior to first fix boarding, and prior to second fix. Building Control inspections are co-ordinated and attended by JNR's site manager.
Practical completion is not the end of JNR's accountability — it is the beginning of the documented record of everything that was built and how it was built.
At practical completion, the handover package includes:
Building Regulations Completion Certificate. Issued by the Local Authority Building Control or Approved Inspector confirming that the works have been inspected and comply with the relevant Parts of the Building Regulations.
CDM Health and Safety File. Required under Regulation 12(5) of CDM 2015 on all qualifying projects. The file documents the as-built structure, the materials used, the services installed, and any information that will be needed for future maintenance or alteration. It is handed to the client at completion and must be passed on with the property on any future sale.
Gas Safe and Part P certification. All gas work certified by a Gas Safe registered engineer. All electrical work certified by a Part P registered operative, with the appropriate Building Regulations notification.
O&M manuals. Operating and maintenance documentation for installed systems — heating, ventilation, mechanical plant — so the client understands how the building works and what routine maintenance is required.
Snagging record. A formal snagging list produced at practical completion, agreed with the client, and resolved within the defects liability period specified in the contract.
The defects liability period (typically 12 months under a JCT Homeowner Contract) runs from practical completion. If defects attributable to JNR's works appear during that period, we return and resolve them. The client has a direct contractual remedy — not a series of phone calls to a company that has moved on.
Front and Rear Extension & Remodel, Wilmslow
This total property transformation required more than standard building practices; it demanded complex structural engineering. We installed heavy structural steelwork to alter the load paths, safely supporting wide-span rear glazing to create a modern open-plan footprint. On the exterior, we executed the architect’s vision of a striking contemporary contrast, expertly integrating the new high-specification brick additions against the original white-painted property. The result is a bold, fully Part L energy-compliant home that perfectly bridges the existing structure with modern architectural design.
“I own one of Cheshire’s most prestigious estate agencies and am frequently asked to recommend reliable building companies. I have used JNR Construction for both domestic and commercial work and have first-hand experience of their workmanship and professionalism. The interior oak work has been expertly crafted. I feel fully justified in putting forward JNR Construction.”
Not always. Many single-storey rear extensions, modest side extensions, and loft conversions on Wilmslow homes can be delivered under permitted development. However, permitted development rights are reduced or removed inside the Hawthorn Lane, Highfield, St Bartholomew's, and Styal Conservation Areas, by Article 4 Directions (Highfield carries one), on listed buildings, on properties in the Green Belt, and where existing planning conditions restrict further development. Every Wilmslow feasibility includes a site-specific check against the Cheshire East adopted policies map and the conservation area register before any application route is recommended.
Wilmslow has four designated conservation areas: Hawthorn Lane, Highfield, St Bartholomew's, and Styal. Each has a published Cheshire East appraisal document. The St Bartholomew's area covers the medieval town core beside the River Bollin including the Grade I listed church. The Styal area extends to Quarry Bank Mill (Grade II*) and the surrounding National Trust estate. Many Wilmslow homes sit outside these boundaries — but for any property near the historic centre, off Hawthorn Lane, in Highfield, or in the Styal area, the designated boundary needs checking against the live Cheshire East mapping before specifying external works, materials, or replacements.
The Highfield Conservation Area in Wilmslow carries an Article 4 Direction. Cheshire East's general guidance is that Article 4(2) Directions typically apply to elevations fronting a highway and to houses rather than flats or commercial properties, and that they can remove permitted development rights for works including replacement windows, doors, roofs, chimneys, architectural details, boundary treatments, porches, hardstandings, and the painting of previously unpainted brickwork. The practical answer for any specific Wilmslow address is to check the live Cheshire East Article 4 register before assuming any work falls under permitted development. We do this at feasibility on every project.
For any Wilmslow site within the River Bollin flood warning area — which covers properties between the A538 Bollin Link and Oversleyford Bridge, including Rivers Street, Cliff Road, Quarry Bank Mill, and Hooksbank Wood — flood risk needs to be addressed at the feasibility and planning stage. The wider River Bollin catchment flood alert area covers Knutsford, Wilmslow, Macclesfield, and Bollington. For basements, lower-ground reconfigurations, extensions close to the river corridor, or any landscaping that alters surface-water flow, the GOV.UK Flood Map for Planning and an FRA appropriate to the development scale will normally be required.
Cheshire East Council Building Control accepts both routes — but for any substantial Wilmslow project the Full Plans route is the safer one. Full Plans means the design is checked and approved before work starts, so structural calculations, fire-safety strategy under Part B, drainage, ventilation, energy performance under Part L, and any conservation- or listed-building-related details are resolved at design stage. Building Notice is faster to submit but pushes all of that risk on to the site, where issues become more expensive to fix. We default to Full Plans for extensions, structural alterations, loft conversions, new builds, and commercial refurbishment in Wilmslow.
Yes. The JNR model is design-to-build partnership, not design-versus-build adversarial. We engage at RIBA Stage 2 or 3 — before drawings are finalised — to provide a constructability review, structural feedback, planning and conservation-area risk assessment, and an early cost plan. We then tender, contract under JCT, and deliver as Principal Contractor under CDM 2015. The architect retains design authorship throughout. We do not value-engineer your architect's design without instruction. Cheshire East and Greater Manchester architects who want a contractor they can refer without reputational risk are the audience this page is written for.
Whether you have an architect’s drawings ready, a planning consent in hand, or simply a Wilmslow address and an idea you want to test against reality — a 20-minute conversation with Julian is where every JNR project begins.
