Planning Approval?

Here’s what happens next

Guidance for homeowners

Planning to build with Syze Developments

Planning application submitted? Get Build Ready. Planning application submitted? Get Build Ready. Planning application submitted? Get Build Ready.Planning application submitted? Get Build Ready. Planning application submitted? Get Build Ready. Planning application submitted? Get Build Ready.

Before work begins

Most building problems start before work begins, due to unclear or incomplete information. At planning approval stage, your drawings only show what you want to build, but without the structural detail, building regulations or how the project will be delivered.

This is where clear advice matters. Our Planning Stage Resource Hub answers the questions most homeowners ask at this point. The guides are practical and direct. Read below to understand what comes next.

Planning resource hub

We’ve created the following downloadable guides to answer the questions homeowners most commonly ask at this stage.

Understanding Construction Roles

Planning Approval vs Building Regulations

Construction Jargon
Buster

Common questions at the planning stage

Can you price from planning drawings?

Yes – for early guidance only.

Planning drawings are not construction-ready documents, but they usually contain enough information to provide a structured budget estimate.

At this stage, pricing is presented as a considered range rather than a fixed quotation. A firm quotation requires structural calculations, Building Regulations detail and confirmed specification.

The best projects don’t start with a number – they start with clarity about scope, expectations and outcome.

What happens after planning is approved?

Planning approval confirms your proposal is acceptable in principle — not that it is ready to build.

The project then moves from visual intent to technical definition. Typical next steps include:

Structural calculations and engineering design
Building Regulations drawings and compliance detail
Drainage and services coordination
Detailed specification development
Accurate pricing and programme scheduling

Only once these elements align does the project become build-ready.

When can work start?

Work rarely begins immediately after planning approval — and that is intentional.
Before construction can start, the project moves through technical preparation:

Structural calculations (3–4 weeks)
Building Regulations drawings (2–4 weeks)
Final pricing and scheduling (2–4 weeks)

In most cases, construction begins approximately 8–12 weeks after planning approval, depending on complexity.

Preparation prevents disruption. Structured sequencing ensures the build phase begins with clarity rather than assumption.

How much will it cost?

Construction cost depends on the level of detail available and the ambition of the project. Cost will be driven by:

Scale and structural complexity
Specification level and finishes
Site access and logistics
Services, drainage and regulatory requirements

…and influenced by your own aspirations for how the space should perform and feel.

At early stages, pricing is provided as a considered range. As structural design, specification and regulatory detail develop, that range narrows into a formal quotation.

Through measured assessment and review, clarity replaces assumption — before construction begins.

PREFER TO TALK?

How we can help

If you would like to talk things through, we are available. We offer a free, practical conversation about your project looking at feasibility, budget, and how the build would unfold.

If this sounds useful, get in touch.

Professional Affiliations

Our contracts are approved by the Federation Of Master Builders for total peace of mind.

What our customers say:

      EXCELLENT  
   Based on 8 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Jason Ralphs 
 
 
 
 Trustindex verifies that the original source of the review is Google. We are really happy with the quality of the work that Syze completed. They managed the onsite team of trades well and we had an open and honest dialogue throughout the build. We had several complications to the project such as asbestos removal that required specialist removal, which they managed well. We would use Syze again for future projects.
  
 
      Posted on Google  
   
   Lisa Guile 
 
 
 
 Trustindex verifies that the original source of the review is Google. Syze Developments were recommended to me & rightly so.  From the word go, the owner and contractors were professional, friendly and above all, helped me with decisions in how best to refurbish my 70's bungalow into a stylish contemporary home.  Simon will project manage everything for you, liaising with architects, structural engineers & surveyors.  His team are experienced & dedicated and take professional pride in their work.  The results speak for themselves.  I recommend them to anyone with small, medium or large size projects.  They carried out a complete refurbishment of my 3BR bungalow with new kitchen, bathroom and beautiful bifold doors.  They even took care of my needs in the garden, laying composite decking & adding a stunning resin driveway.  I'm happy to show case my home in Waterlooville.  Just ask Simon to contact me!  That's how much I rate Syze Developments.
  
 
      Posted on Google  
   
   Nick Blake 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simon and team have done a terrific job for us. Our architect had designed a new kitchen extension, together with several other alterations to the layout of our house. The team, led by John..a stickler for detail..were courteous, clean and tidy and worked around us as we continued to live in the house over a multi-month build. All the trades seemed nicely synchronised and have clearly worked together many times.
Inevitable design changes came up and these were all expertly integrated into the plan, with budget changes discussed and agreed as we went. The team made many helpful suggestions, which we'd have never thought about.
This was our first ever 'development' and we were a bit nervous, but we're delighted with the result.
  
 
      Posted on Google  
   
   Abby Neal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick, clean and everything has a great finish. Thank you to Simon and his entire team for getting the project completed in the time frame discussed and for making our visions come to life. We’re really pleased with how everything has turned out.
  
 
      Posted on Google  
   
   Pauline Stainsby 
 
 
 
 Trustindex verifies that the original source of the review is Google. Would highly recommend Simon and his team. We had our open plan kitchen extension designed and built by Syze developments to create a downstairs bedroom. The workmanship was excellent. The build was on time and in budget.
  
 
      Posted on Google  
   
   Brandon Killien 
 
 
 
 Trustindex verifies that the original source of the review is Google. The end result was exactly what we wanted. The project was slightly delayed due to supplier issues, but it was worth the wait. The team was polite and ensured the area was left clean every night. There was slight creep of the scope of work, but this was due to another trade letting us down. Simon and the team carried out this additional work with no issue, and reasonably priced. Very happy customer.
  
 
      Posted on Google  
   
   Darren Tutte 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simon and his team completed a 2-storey side extension as well as internal re-design of the existing property.  Really pleased with the build quality and workmanship.  The core team were friendly, experienced and did a great job trying to minimise disruption as best they could.  All the different trades worked well together and were always happy to discuss and make any changes.
  
 
      Posted on Google  
   
   Caroline Siddall 
 
 
 
 Trustindex verifies that the original source of the review is Google. I looked into several building firms before trusting Simon and his team to do the job. It was a complex double storey extension and redecoration to accomodate my father in law. I am delighted with the results - I would use them again without hesitation. All workmen used were very clean and tidy and any issues were resolved quickly and without disruption.