Design Spec Ltd
Architectural Services. Design Spec Ltd has been vetted and approved by TrustATrader. Covering London and East Anglia.
Membership number TT12341
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Register GuaranteeAbout Design Spec Ltd, Southend
Fixed-Fee Architectural Design for Essex & Hertfordshire
Loft conversions, house extensions, garage conversions with same-day quotes. No hourly billing, no hidden costs. Planning permission & building regulations included. Every project comes with free vetted builder introductions through our Connect network.
✓ Fixed-fee pricing (transparent, no surprises)
✓ Planning applications & building regs drawings included
✓ Structural calculations & party wall surveying
✓ Trusted local experts serving South East
✓ Free intro to vetted local builders once approved
Why Design Spec?
- Same-day fixed quotes
- Unlimited design revisions included
- Planning permission paperwork handled
- Direct access to trusted builder network
- 10+ years, 100s of completed projects
Serving: Southend-on-Sea | Westcliff-on-Sea | Rochford | Prittlewell | Thorpe Bay | Chalkwell | Leigh-on-Sea | Benfleet | Wickford | Rayleigh | Basildon | Canvey Island
Contact us today!
Website: www.designspec.co.uk
Email: info@designspec.co.uk
Telephone: 01702 567955
Photo gallery
Contemporary Luxury Loft Conversion
9 photos
Premium Light-Filled Extension
10 photos
Elegant Dining Room Extensions
14 photos
Contemporary House Extensions
11 photos
Luxury Living Spaces
12 photos
Bespoke House Extensions
13 photos
Open Plan Living in Essex
10 photos
Modern Kitchen Extension
8 photos
Design Spec Ltd
- Identification checked
- Company address verified
- Customer references checked
- Agreed to TrustATrader's high standards
- Agreed to complaints procedure
Essex
Insurance details
| Provider | Hiscox Insurance Company Ltd |
|---|---|
| Verified | 30th June 2025 |
Associations
Reviews (85)
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Average rating: 4.0 out of 5
Review by James
on 9th June 2026
"I found the team, led by Lauren Taylor to be professional and prompt with creating and advising on the design and planning process. I am looking forward to completing the planning process and getting their help with the more detailed spec, including engineers drawings, in the next few weeks."
Trader reply: "Thank you for taking the time to leave us a review - it’s much appreciated. We look forward to continuing to work with you."
- Initial impression Initial impression: 4 out of 5.0
- Punctuality Punctuality: 4 out of 5.0
- Cleanliness Cleanliness: 4 out of 5.0
- Quality Quality: 4 out of 5.0
- Value Value: 4 out of 5.0
- Overall opinion Overall opinion: 4 out of 5.0
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Average rating: 5.0 out of 5
Review by Rrahman Hupi
on 24th April 2026
"Lauren has been fantastic throughout the project — professional, supportive, and incredibly easy to work with. Her hard work, attention to detail, and excellent communication made the whole process smooth and stress‑free. I’m very grateful for her dedication and highly recommend her."
Trader reply: "Thank you for your kind words - we really appreciate you taking the time to share your experience. We’re so pleased to hear the process felt smooth and well supported throughout, and Lauren will be delighted to know her work made such a positive difference."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Sarah Miller
on 2nd April 2026
"I cannot commend Design Spec highly enough, particularly Marcus Dunmow. Their attention to detail was superb, great communication, superb value for money. Marcus was so understanding as we requested changes. I am very grateful for their work and support. Thank you"
Trader reply: "We’re really glad to hear that you’ve had a positive experience with us and that Marcus was able to assist you throughout the process. Clear communication, attention to detail, and flexibility are very important to us. We truly appreciate your kind feedback and support."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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Average rating: 5.0 out of 5
Review by Joe Atkins
on 24th March 2026
"I’ve recently worked with Design Spec LTD on designing the extensions and refurbishment for my new house, and I couldn’t be happier with the experience. From start to finish, the service and support have been excellent. The team were professional, attentive, and always willing to go the extra mile to make sure everything was moving in the right direction. Their attention to detail and clear communication made the entire process smooth and stress‑free. I’m extremely pleased with the outcome and would highly recommend Design Spec LTD to anyone looking for quality architectural services."
Trader reply: "It’s been a pleasure working with you so far on your home, and we’re glad to hear you’ve been happy with the process to date. We always aim to make things as smooth and straightforward as possible, so it’s great to know that’s been your experience. We’re looking forward to continuing working together and seeing the project come to life."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
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