Design Spec Ltd
Structural Repairs. Design Spec Ltd has been vetted and approved by TrustATrader. Covering London, Essex and East Anglia.
Membership number TT12341
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Register GuaranteeAbout Design Spec Ltd, Cambridge
When you’re making home improvements that involve the stability of a building you will probably need a structural engineer. Design Spec Ltd can provide structural drawings and calculations which will be used by your building contractor and architect during the renovation work.
Design Spec Ltd believe that the most important decisions are based on one simple fact… The average UK citizen will extend their home ONCE in their lifetime. We take this very seriously and have built our entire company with this quotation being the driving force.
Design Spec Ltd provide a Fixed Fee Architecture solution that also provides an UNLIMITED design stage as standard. Visit one of our #OneStopPropertyShops for ANYTHING property-related.
We can offer the following services:
• Financing your project
• Planning Applications
• Building Control Applications
• Architectural Design and Build Domestic Works
• Architectural Design and Build Commercial Works
• Licence Plans
• Lease Plans
• Enforcement PVX Applications (Crossovers) CIL,
• Renewable Energy
• Property Investment and General Construction Consultation
• VR (Virtual / Augmented Reality
• Building Work
• Free Advice
• Free Quotation
If you would like to find out more about Design Spec Ltd we will be delighted to talk you through your needs and advise you.
You can contact us at your nearest office:
Head Office:
Suite 1C, Warren House, 10-20 Main Road, Hockley, Essex SS5 4QS
Telephone: 01702 567955
Colchester Office:
Innovation Centre, Boundary Road, Colchester CO4 3SQ
Telephone: 01206 259310
Bishops Stortford Office:
Suite 1B, The Stables, Cannons Mill Lane, Bishops Stortford, Hertfordshire, CM23 2BN
Telephone: 01279 790123
Enfield Office:
Innova Park, Vision 25, Electric Avenue, London EN3 7GD
Telephone: 02039 705151
St Albans Office:
Fountain Court, Victoria Square, Victoria Street, St. Albans, Hertfordshire AL1 3TF
Telephone: 01727 627211
Richmond Office:
Regus Richmond, Parkshot House, 5 Kew Road, Richmond TW9 2PR
Telephone: 02085 443232
Contact us today to discuss your requirements or visit our website for further information on how we can help. We look forward to hearing from you.
**
Thanks again!
Please mention Trustatrader when calling
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
All other media
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Design Spec Ltd
- Identification checked
- Company address verified
- Customer references checked
- Agreed to TrustATrader's high standards
- Agreed to complaints procedure
Cambs
Insurance details
| Provider | Hiscox Insurance Company Ltd |
|---|---|
| Verified | 30th June 2025 |
Associations
Reviews (86)
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Average rating: 5.0 out of 5
Review by Jason
on 19th June 2026
"Designspec ltd have been great with our home improvement project (porch, side building, kitchen and loft). Marcus and the team are really collaborative, responsive, and have produced the planning application design we envisaged. They have great creative ideas, and useful examples from other projects. Their unlimited design changes is great as we can openly discuss options without concern of rising design costs. They have good understanding of phased builds, and financial impact associated with the design. Would definately reccomend to others."
- 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: 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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