One of the most common questions we hear is: "How long will this take?" When you're investing in a premium oak-frame solar carport, understanding the timeline matters. You want to know when you can park under your new structure, when the solar tiles will start generating energy, and when the project will transition from disruption to asset. The honest answer is 10-16 weeks for most installations, but there are many variables. Let's walk through each phase of the build process, explain what determines the timeline, and highlight what can cause delays—and how to avoid them.
The Five Phases of Oak Frame Carport Installation
Building an oak-frame solar carport isn't a simple foundation-and-build process. It's a carefully orchestrated sequence of design, fabrication, groundwork, erection, and commissioning. Each phase has its own timeline and its own potential for acceleration or delay.
Phase 1: Design & Planning
This phase begins with your initial contact with our team and concludes when you have a final design approved and ready for fabrication (and, if required, submitted to local planning authorities).
What happens:- Initial consultation (1 week) — We discuss your requirements, budget, site orientation, and intended use. We explain BIPV solar tile options and help you understand how the system works.
- Site survey (1-2 weeks scheduling + site visit day) — See our detailed guide on site surveys, but briefly: we visit your property to assess access, ground conditions, orientation, shading, and service positions. We produce a detailed site plan.
- Design production (1-2 weeks) — Our architects produce detailed drawings and 3D visualizations. We specify timber sizes, joint positions, solar tile layout, electrical routing, and structural calculations.
- Planning application (if required: 4-8 weeks) — Most domestic carports don't require planning permission, but some local authorities require it. We prepare and submit on your behalf. Most applications receive approval in 8 weeks; some are faster, some encounter objections.
What affects this phase: Planning permission is the biggest variable. Fortunately, many domestic carports fall under permitted development rights in England. If your carport doesn't require permission, this phase compresses to 2-3 weeks. If permission is needed, add 4-8 weeks (and potentially longer if objections are raised).
Phase 2: Oak Frame Fabrication
Once design is finalized and planning is secured (if needed), we move to production. Our workshop in Suffolk produces your bespoke oak frame.
What happens:- Timber selection and milling (1 week) — We source green oak from sustainable UK and European forests. Logs are milled to the precise dimensions specified in the design.
- Mortise-and-tenon joinery (2-3 weeks) — Our craftspeople hand-cut traditional joinery. This isn't an assembly-line process; it's bespoke craftsmanship. Each joint is fitted and tested.
- Trial assembly (1 week) — The complete frame is assembled in the workshop to verify all joints fit perfectly, all connections align, and the frame is square and true.
- Disassembly and preparation for transport (1 week) — The frame is carefully disassembled, numbered, and prepared for transport to your site.
What affects this phase: Custom designs and large sizes can extend this phase to 6-7 weeks. Timber availability can occasionally cause delays, though we typically hold stock for standard sizes. We build to order, so you won't wait for stock to arrive.
Phase 3: Groundworks & Foundations
While your frame is being crafted, groundworks begin. This phase includes site preparation, foundation installation, and electrical infrastructure.
What happens:- Site clearance and leveling (2-3 days) — We remove any obstacles, level the site, and establish working access for deliveries.
- Foundation installation (3-5 days) — Foundations are key to longevity. We typically use concrete pad foundations (not poured concrete slabs, which trap moisture). Each post sits on an independent concrete pad with a structural steel shoe. This allows air to flow under the structure, preventing rot. Drainage is installed if needed.
- Electrical groundworks (2-3 days) — Conduit is installed from your consumer unit to the carport location, ready for the solar installation phase. If you're adding EV charging, conduit routes are established now.
What affects this phase: Difficult ground conditions can extend this phase significantly. Clay, chalk, or requiring deeper foundations can add 1-2 weeks. We identify this during the site survey, so you'll know in advance if you're at risk.
Phase 4: Frame Erection
This is the dramatic phase: your bespoke oak frame is delivered and erected on-site. For a standard 4m × 6m carport, this typically takes 2-3 days with a specialist team.
What happens:- Delivery (1 day) — Your frame arrives on a specialist lorry. We carefully unload the components and position them on site. Because the frame is numbered during fabrication, reassembly follows a precise sequence.
- Erection (1-2 days) — The frame is erected in reverse of assembly sequence. Posts are positioned on foundation shoes and plumbed (made perfectly vertical). Beams are lifted into place and jointed. The entire frame is squared and braced. This is skilled work; a two-person team might take 2-3 days; a larger crew might complete it in 1 day.
- Temporary bracing (1 day) — The frame is braced with temporary timber to ensure stability until the roof system is installed.
What affects this phase: Weather is the main variable. If heavy rain or high winds are forecast, erection is postponed. Site access difficulty can extend this phase. If your site is difficult for cranes or vehicles to access, manual lifting and positioning takes longer.
Phase 5: Roofing & Solar Installation
The final phase is installation of the roof system and BIPV solar tiles, electrical connection, and commissioning.
What happens:- Roof structure (2-3 days) — Roof beams, purlins, or rafters (depending on design) are installed to create the structural deck for the solar tiles. This is the traditional roof framing work.
- BIPV solar tile installation (3-5 days) — Solar tiles are installed across the roof surface, creating a seamless, integrated solar canopy. Unlike bolt-on panels, BIPV tiles ARE the roof. This is more time-intensive than panel installation but creates a superior aesthetic and structural result.
- Electrical installation (2-3 days) — Wiring, inverter installation (usually wall-mounted on an adjacent building or post-mounted), and DC/AC connections are completed. All work is to MCS (Microgeneration Certification Scheme) standards, and your installer is accredited.
- Commissioning and handover (1 day) — We conduct comprehensive testing, verify all electrical connections, confirm the system is generating power, provide you with manuals and monitoring access, and hand over the keys—metaphorically speaking.
What affects this phase: Weather is critical. Solar tile installation requires dry conditions. Rain, high winds, or frost can cause delays. BIPV tile supply can occasionally extend this phase if there are manufacturing delays (though we coordinate closely with suppliers to prevent this).
The Complete Timeline: Summary
Typical Build Timeline
- Design & Planning (no permission needed): 2-3 weeks
- Oak Frame Fabrication: 4-6 weeks
- Groundworks: 1-2 weeks (parallel with fabrication)
- Frame Erection: 2-3 days
- Roofing & Solar: 1-2 weeks
- Total: 10-16 weeks
If planning permission is required, add 4-8 weeks to the design phase. If planning is required and your application faces objections, add up to 12+ weeks.
What Causes Delays (And How to Avoid Them)
Planning Permission Delays
The most common cause of timeline extension is planning permission. Some domestic carports are permitted development (no permission needed). Others require planning approval. If you're uncertain about your site, raise this early—it determines whether your timeline is 10 weeks or 18+ weeks.
To accelerate: Work with us to prepare a strong planning application. Engage with your local planning authority early if you suspect objections (e.g., conservation area, listed building, sensitive neighbors). Some authorities fast-track applications for sustainable energy infrastructure.
Difficult Ground Conditions
Ground conditions are identified during the site survey. Clay, chalk, very soft ground, or high water tables can require special foundation solutions (deeper piles, raft foundations, drainage improvements). This can add 1-2 weeks to groundworks.
To accelerate: Complete a Phase 1 Environmental Assessment if you suspect difficult ground. This costs £800-1,200 but can identify issues early, preventing costly surprises during excavation.
Weather
Weather affects frame erection and solar installation. Heavy rain, high winds, or frost can delay work by 1-2 weeks. This is largely unavoidable, though scheduling work in drier seasons (spring or autumn rather than winter) reduces risk.
Site Access
If your site is difficult for cranes or trucks to access, erection and material delivery take longer. Identify access issues during the site survey and solve them early (permission from neighbors for temporary access, hiring smaller vehicles, etc.).
EV Charger or Battery Storage Addition
If you're adding an EV charger (3-5 days extra) or battery storage (3-5 days extra), the timeline extends accordingly. These are valuable additions but do require additional time for installation and commissioning.
When Will I Be Generating Solar Energy?
You'll start generating energy the day the solar tiles are commissioned and connected to the grid. In the 10-16 week timeline, this falls in the final week of the project. From that point forward, your system is generating electricity and offsetting your consumption (or exporting excess to the grid, earning SEG income).
Minimizing Disruption
The most disruptive phase is typically frame erection and roofing installation—about 3 weeks of activity. During this time, access to the carport area is limited, and there's noise and vehicle traffic. We schedule this carefully and keep disruption to a minimum. Most of our work happens during daylight hours, Monday to Friday.
Groundworks can cause more significant disruption if your driveway or garden needs excavation. We plan this carefully and restore everything to the same condition (or better) when complete.
What Happens If You're in a Hurry?
If your timeline is tight, communicate this at the initial consultation. Some phases can be accelerated:
- Fast-track design (we can produce preliminary drawings in 1 week if you're willing to make decisions quickly)
- Parallel groundworks (start foundations while frame is still being fabricated—saves 1-2 weeks)
- Larger erection team (more people on-site can compress frame erection to 1 day)
However, quality doesn't accelerate. Traditional mortise-and-tenon joinery can't be rushed. We prioritize craftsmanship over speed, and that's a fundamental principle we won't compromise on.
Ready to Start Your Oak Frame Solar Carport Project?
Understand your timeline and get a detailed project schedule personalized to your site. Start your configurator journey today and schedule your free site survey.
Configure Yours →The Bottom Line
An oak-frame solar carport typically takes 10-16 weeks from initial meeting to driving under your completed structure and generating solar energy. This timeline accounts for bespoke design, traditional craftsmanship, careful groundwork, and meticulous solar installation. Planning permission, if required, can extend this timeline by 4-8 weeks. Weather and site conditions introduce variables, but most of these are identified early in the site survey.
Rather than rushing, we believe in doing the job properly. A structure built with care, using traditional techniques, and incorporating modern solar technology, will outlast cheaper alternatives by decades. The wait is worth it.