JB Designs - Herts

JB Designs - Herts Architectural Services - Extensions, Loft Conversions, New Build Flats and Houses

At JB Designs (Herts) (formally J M Bygate Designs Ltd) we offer Architectural Services for residential projects. These projects range anything from a small home extension or loft conversion up to small scale developments including new homes and flats. We provide a friendly, close and personal service which helps our clients to understand their design options. We offer a competitive pricing struct

ure for your project and like to ensure we meet our clients expectations on every project to best of our ability.

A visit today to a new project that has start in for a pair of detached new build homes. Word have begun with site str...
25/02/2026

A visit today to a new project that has start in for a pair of detached new build homes. Word have begun with site strip and set out, with the footings being dug as we speak. This site is particularly tricky based on the sloping levels both side to side and front to back. We were instructed to work on the Planning drawings and since the Building Regulation drawings, with onsite works also to be undertaken. I am certainly looking forward to seeing this project come together onsite over the coming months and year

11/02/2026

I’ve recently been made aware that my name has been referenced in relation to advice suggesting that planning permission and/or building regulations approval would not be required for certain extension projects.

As an Architectural Designer, I would like to make it absolutely clear that I have not given any such blanket advice, nor would I ever advise clients to disregard statutory requirements.

Whether planning permission or building regulations approval is required depends entirely on the specific details of each project. These matters must be properly assessed in accordance with current legislation and local authority guidance.

Compliance is not optional, and providing inaccurate information — particularly when using someone else’s professional name — is a serious matter.

If anyone has been told that I have advised that permissions or approvals are unnecessary, I would appreciate you contacting me directly so I can clarify.

Thank you.

A visit this week to a project in to see how things are getting on. This one doesn’t show much as you can see, but the...
10/01/2026

A visit this week to a project in to see how things are getting on. This one doesn’t show much as you can see, but there is a full basement floor underneath the beam and block floor structure. This is as part of a whole new build home we achieved planning permission for last year. This will be a lovely detached 3/4 bedroom bungalow with basement below. Looking forward to seeing this one come together onsite over the coming months and year.

Still working on Xmas Eve, but this time is sketch day - working on a final couple of sketches for potential projects fo...
24/12/2025

Still working on Xmas Eve, but this time is sketch day - working on a final couple of sketches for potential projects for the New Year. As always our projects are spread over varying locations and offer great potential for our clients

A new project has begun its journey onsite in and as you can is well underway (we were a little late to the party!)The...
16/12/2025

A new project has begun its journey onsite in and as you can is well underway (we were a little late to the party!)
The proposal for this phase of works is a large single storey rear extension which almost doubles the footprint of the home to create a fantastic Kitchen/Dining/Living space to the rear of the home. Once complete the second phase of the project will be to convert the loft space by adding both front and rear dormers to achieve bedrooms and bathrooms to the first floor. Once complete this will provide a fantastic detached family home

Having visited site last week, we can see the roof is almost complete, meaning works can well and truly move on internal...
15/12/2025

Having visited site last week, we can see the roof is almost complete, meaning works can well and truly move on internally. More to follow….

Another project well underway in (thought this had been previously posted). This project was for a part two storey, pa...
15/12/2025

Another project well underway in (thought this had been previously posted). This project was for a part two storey, part single storey side and rear extension with internal alterations throughout. By achieving planning permission for this extension the new home shall have 4 double bedrooms, with two bathrooms to the first floor, separate living room at ground floor and large open kitchen/dining/family space across the rear. Works are really going great onsite

A foggy site visit this morning to see how the ‘Changing Room’ project is coming along. Roof felt and battens are now in...
02/12/2025

A foggy site visit this morning to see how the ‘Changing Room’ project is coming along. Roof felt and battens are now in place meaning that the roof is partially weathertight with the roof tiles due to be installed early next week. Internally the partition walls are coming along nicely which shows the layout well (further photos/video to come soon), More to follow….

15/11/2025

We now have a roof structure! After a fantastic week by the bricklayers to get things ready, the truss rafters where delivered and installed. The team onsite today to install the trusses worked through the bad weather and got the job done. This week will bow see the entire build become weather tight ready for internal walls to be constructed, etc. More to follow….

A stop in to speak with the owner/contractor for this project in this morning and I am pleased to see progress has sta...
11/11/2025

A stop in to speak with the owner/contractor for this project in this morning and I am pleased to see progress has started and continuing to go well. This project is a very large two storey side, rear and front extension that will create a very nice detached family home. As always come back to see the progress

A visit this morning to check on the brickwork progress shows that things have really come along. The internal blockwork...
06/11/2025

A visit this morning to check on the brickwork progress shows that things have really come along. The internal blockwork is now up to plate height with the wall plate to be installed early next week. The external facing brickwork is coming along nicely too, but waiting on the scaffold to be installed onsite tomorrow. Today the concrete and steel lintels where to be installed over all windows and doors as required to ensure the brickwork may continue over them. More to follow….

Address

Caddington
Harpenden
LU1

Opening Hours

Monday 9am - 5:30pm
Tuesday 9am - 5:30pm
Wednesday 9am - 5:30pm
Thursday 9am - 5:30pm
Friday 9am - 5:30pm

Telephone

+447841389342

Website

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