Your 12-18 Month Wedding Planning Timeline

A year to a year and a half might seem like a long time, but this timeframe can be ideal. You’ll have time to book the suppliers you want and enough flexibility to handle any unexpected events. Here’s how to plan a wedding so you stay organised, in control and remain on track over 12-18 months.

12-18 Months Before Your Special Day

Start with the basics that shape everything else: your budget, guest numbers, provisional dates, and what you need from a venue.

Once you have set your overall budget, agree on approximate numbers for your wedding venue and food, as well as the budget for photography and other areas that matter most to you as a couple. Taking this time to agree on your priorities together makes every later decision simpler.

When choosing a venue for your celebrations, consider location, capacity, ceremony options, wet-weather contingencies, and the flow between spaces. Think about the time of year, too. Some venues are at their best in particular seasons, so agree on which time of year you prefer for your wedding and use this as the basis for your provisional dates.

A tiered guest list can help to make venue choice easier – put must-invite guests in tier one, and those you’d love to include if space allows in tier two.

Looking to plan a small wedding? Discover how Hatfield Park is the perfect small and micro wedding venue.

9-12 months in Advance

This is a good time to confirm your venue. Before you do, check what is included – such as tables, chairs, crockery and any in-house AV equipment – so you know what’s already covered and what you’ll need to hire.

If you’re having a civil ceremony on site, check registrar availability at this stage, or separately confirm the legal requirements if you are using a celebrant.

With your venue secured, think about accommodation for you and your guests. You might consider provisionally booking rooms in nearby hotels or creating a list of options for any guests travelling from further afield.

Book key suppliers next: entertainment, photographer/videographer, and caterer. Choose the style of wedding music you would like, shortlist photographers and videographers whose work reflects your vision, and decide on a catering style – whether shared platters, a three-course menu or a buffet.

Ask your venue for recommendations. The Hatfield Park wedding team has a list of trusted suppliers to choose from.

Finally, you might begin choosing wedding outfits at this stage for you and your wedding party.

Read our guide to wedding music and choosing music for your special day.

6-9 months in Advance

Once your venue and registrar or celebrant are booked, send save-the-dates so guests can plan their travel, and you have time to arrange any group transport.

Now’s the moment to finalise your ceremony details and walk through your bad-weather backup, so switching plans is easy if the forecast turns.

Consider creating a décor mood board that balances your personal style with the venue’s character for the perfect combination of colour and texture. Historic settings, such as the Old Palace in Hatfield Park, favour elegant, understated styling that complements the architecture.

You’ll also need to book a wedding cake consultation and refine your wedding menu, including dietary plans and wine pairings. Confirm service timings to ensure the day runs smoothly and guests are comfortable.

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3-6 months in Advance

At the three to six-month point, many of the details can be finalised, and the excitement starts to build.

With your guest list confirmed, send invitations that include an RSVP deadline, any menu options and clear access directions. Ensure all legal steps are complete now: verify ID requirements, notice periods, and civil ceremony deadlines.

You may also wish to double-check each supplier’s timings, access, and logistics, and share your venue contact for coordination on your wedding day, especially if you are working with external teams.

Complete any final outfit alterations and other small details around three months prior. Now is the perfect time to explore wedding cake options and place your cake order.

1-3 Months in Advance

In the final three months, confirm your menu and drinks choices once guest numbers and dietary requirements are known.

Create a detailed run-sheet with a little buffer time built in. Note who will cue each moment, and agree on the order and rough length of speeches. Rehearse your wet-weather plan and walk through the alternative version of your day, including photo locations and guest movement, to calm any remaining nerves.

It’s also wise to confirm accessibility with the venue, such as step-free access, seating arrangements, and signage, so that adjustments can be made early.

2 Weeks in Advance

In the final weeks, provide confirmed numbers to your caterer, venue, and any hire companies, and settle outstanding balances so everything is in place for the day.

Reconfirm logistics such as arrival times, access routes, supplier details and seating plans. Prepare a clearly labelled packing list for items such as place cards, signage and wedding favours.

Appoint a trusted person, such as the Best Man or Maid of Honour, to look after documents and handle last-minute tasks. Also, assemble a small emergency kit with essential items, including a sewing kit and pain relief medication.

Read our guide to wedding roles explained – who does what at a wedding?

How to Plan a Last-Minute Wedding

Planning your celebration in weeks rather than months? You can absolutely create a wedding that feels thoughtful, elegant, and romantic. If you’re working to a 6–12 week timeline, try these tips:

• Let the date and venue lead – ask venues for near-term availability and work backwards from the dates they can offer.
• Prioritise the essentials – this will be personal to you as a couple, but often includes the venue, registrar or celebrant, catering, photography and music.
• Be flexible with styling – lean on the venue’s inherent beauty, existing furniture and seasonal florals to reduce lead times.
• Use recommended suppliers – they already know the spaces, access routes and sound and lighting requirements.
• Opt for digital communication – send online invitations with RSVP forms to confirm your guest list quickly.
• Streamline outfits – choose off-the-rack pieces with minor alterations to keep things simple and on schedule.
• Choose elegant, straightforward dining – pre-set starters or shared mains can feel both convivial and convenient.

Read about late availability wedding venues at Hatfield Park.

How to Plan a Wedding – Working With Suppliers

Great suppliers make a big difference to a smooth, stress-free wedding day. Begin by shortlisting those whose portfolios align with your style. Then check recent reviews, full-day galleries, and proof of insurance for extra peace of mind.

Once you have confirmed their availability and requirements, put everything in writing – what is included, hours covered, cancellation terms and how extra time would be charged.

Most venues have a wedding team that can handle practicalities, such as access and moving guests between spaces. There may also be a coordinator who could help you to manage the overall picture across suppliers – refining styling details, cueing entrances, and handling guest queries.

With the right team, your day stays calm, polished, and on time.

Start Your Planning at Hatfield Park

A calm, organised wedding plan begins with a few anchors – your budget, guest numbers, and venue – and then unfolds in manageable steps. The right setting can enhance every part of the day. If you are dreaming of a historic and elegant setting, Hatfield Park offers a variety of flexible spaces, including exceptional gardens, for your wedding celebration.

Contact our expert wedding team today to explore our venue options, get support on how to plan your wedding, or download our brochure.