Buying Home on Greenbelt - HELP!

[KTTKTK]

We’ve just had an offer accepted on a chalet-style semi-detached home in Lemsford Village
We had hoped to make it our forever family home. the current footprint is a too small for our needs, but the has substantial land-plot -I hoped to immediately starts works on a 2storey wraparound extension

However, I tracked down the seller’s architect who had visited the property, who shared some limiting details:

• Home is on Green Belt land
• Home is also on a Conservation Area
• Has an existing extension in 1980 (side extension and rear extension 2.6m deep) - from the greenbelt 50% volume rule, this property is approx. 75% over the original footprint

Naturally, we’re saddened — but we’d love a second opinion before making a decision to proceed or walk away.

Is it very unlikely that we should walk away? we're really struggling to find house as we keep losing bidding wars to insane developers

I've Attached:

• Photo of Front & Back of Property (alongside back of attached neighbouring home)
• Site Plan (highlighted in red)
• Existing Floor Plan
• Proposed Extension Sketch 1 (rough sketch of 2Storey wrap-around)

Sorry but I’d be amazed if you got that through planning, particularly on a semi.

My only experience is through self build. I’m not a planning consultant or an architect.

I’d get an opinion from a planning consultant, and also see if there is any way you can have a quick conversation with the planning department.

I don't think you'd have a hope with that size of extension in a Green Belt area, particularly if the property has already been extended. 50% is already generous - most Councils I have dealt with have a maximum of between 25-40%.
The Conservation Area will complicate things from a design point of view.
I also think such a large extension to half of a pair of semis would not be straightforward. It would unbalance the pair massively.

If you need an extension that big it would be better just to buy a bigger house in the first place.

It's lovely and looks plenty big enough to me. How much more do you need??!

Would something like a garden room be enough and fit with the rules?

Just looking at it on Rightmove. Why are some of the photos ChatGPT images? I've need seen that before. It's a lovely house!

You should be able to go on the Council’s website and find a Conservation Area Character Statement, the Local Plan, and perhaps a residential design guide. All would contain guidance and policies that would help.

Difficult without seeing full plans but would be very unlikely in my authority. Extensions should always be subordinate (smaller) and in keeping with the character and scale of the property. The long run you would want down the neighbouring boundary would concern me in terms of impact on their light and outlook. And that’s without considering green belt or conservation area.

buy a bigger house or accept smaller living space

I think the effect on the house next door is probably going to be this issue. Just buy a bigger house

I'm in a conservation area and green belt and think you have no chance of getting an extension.

It may not help, but you have permitted development rights to make a garden building for purposes incidental to the house (pool, gym, extra living room but not bedroom, kitchen etc).

It already has 5 bedrooms. What more space do you need? If you need more bedrooms, buy a house with more bedrooms.

I dont think you will get the extension you want through planning.

You will struggle to get permission but what are you trying to achieve with the extension?

Do you have a large family and want more rooms, to make existing rooms bigger, to create office space or to sort out the higgledy piggledy look of the existing extensions?

If its office space then garden pods could well be the solution on a large plot. If its to improve and unite existing extensions then speak to a local planning consultant. I’m amazed the existing add ons gained consent in a conservation area and replacing them with something which can be presented as an improvement might have a chance.

If you really just want more space then consider that the cost of that extension plus the house might well equate to a property already big enough.

Thanks for everyone's insight

It is bit of a fool's errand and I'm better off pulling-out and finding another home

Apologies if this comes across greedy, a few needs are:

• garage for car and m-bike
• room for my existing gym equipment and pool table
• more storage and utility space
• Double rooms
• Private Ensuite for teen, and an upstairs bathroom
• Bigger kitchen (no space for a fridge in existing)
• DW dreams of kitchen island
• Larger lounge/dining space - we have a very-very large extended family closeby for get-togethers

Interesting permitted development rights can still be used! - I appreciate your thoughts on my tactic below

Attempt to submit the full planning for a two-storey wraparound with well-justified reasoning. Once appeal rejected, fall back to Permitted Development (Option A)

Option A: Maximise Under Permitted Development (PD)

• Rear Extension – 6m single storey

Rule Householder PD (Class A): semi-detached; depth ≤ 6m; height ≤ 4m; height of eaves ≤ 3m. Leave a 1m gap from existing side extension built under planning. Question: is it confirmed there is an existing rear extension, are there documents/certificate of lawfulness to prove it isn’t part of original dwelling?

• Two Storey rear 3m extension

Rule Householder PD (Class A): 3m deep, 2m gap from neighbour line

• Rebuild existing side under PD to reduce GreenBelt volume rule

Rule Householder PD (Class A): max width ≤ 50% of original dwelling width

• Build 30m2 Outbuilding (6m x 5m) for as gym/cinema room

Rule PD (Clase E): max 2.5m height, less than 50% curtilage, not used as a residence

• Rebuild 1st floor taller to add loft-space, ensuring under roof pitch

Rule PD (Class B): Max 50m³ added volume; not exceed existing ridge height

• Convert Roof Terrace to Bedroom Floor Space to reduce GreenBelt volume rule

Rule: Greenbelt: Arguably doesn’t increase volume

• Driveway - Resurface, cobble to enhance look of greenbelt and conservation village

Rule: Use permeable pavers, soakaway, gravel, etc.

Refuting Arguments for Greenbelt restrictions

1. High-quality design and materials: Use reclaimed bricks, slate, cottage-style elements matching the existing attached property
2. Ecological/Energy-Efficient Improvements: Green/biodiverse roof (especially for single-storey portions), Upgrade current EPC from D to A etc
3. Environmental/Landscaping: Currently its Bare soil, restore with native planting, Rainwater harvesting and natural hedgerows
4. Special Circumstances: Multi-generational living need: elderly parents / accessibility. No visual impact from public views. Already substantial built form in surrounding area (precedent). Property’s land size supports additional scale
5. Precedents: Neighbouring properties (e.g. attached property) size and design

You definitely need advice from a planning consultant and/or the local council if you are wanting to maximise permitted development. Keep your eye out for “Article 2(3) land” mentioned in the permitted development legislation as that means conservation areas. Lots of the permitted development rules are different or not applicable - class b roof additions for a start.

I think you would be better off buying something larger to begin with.

Are you planning on extending right up to the boundary line and also right up to the level of the existing frontage? If so, like others, I think there’s not a hope in hell. In a conservation area the planners will want to prioritise the look and feel of the building, and the existing house is quite “cottagey”. No way will they allow the whole look of the house to change- they’d want the extension set back from the front and also in proportion. Just a few other things to consider-
— have you looked at next door and what they’ve done? Their rear extension looks better and like it’s double height, so more space upstairs. You could probably get something with a bit more space upstairs if you match theirs.
— have you considered just building a garden room for the garage/ gym/ utility etc? If you did get one extra room upstairs by copying the neighbours, could you manage with something separate in the garden?
— finally how old are your kids and are they likely to want to leave home any time soon? Lots of my friends have over-extended for teenagers and then slightly regretted it when the kids left home.

You haven’t got a hope in hell. And the refuting arguments for green belt set out above are nonsense and won’t get you close to getting across the line.

plus conservation area rules.

you might not even have PD rights either.

I think the link below is next door- you can see what they’ve done is gone a bit further back with their extension but, critically, they have made it double height. You can also see that they have kept the footprint not too big and also not brought it all the way to the front. There’s no floor plan but I think they must have at least 4 beds upstairs. And a decent kitchen. I’d see if you can get an architect to copy this plus a garden room for the gym and garage if I were you and then see if you could get those plans through. Won’t be cheap though as you’d probably have to rebuild the extension to add a second floor. And being in a conservation area they will probably specify materials etc.

www.onthemarket.com/details/16185373/

I honestly wouldn’t bother even trying with the wrap around idea, I just think that will be kicked out immediately. Also have you thought about how the house would look if you bring the 2 storey bit right to the front? Without being rude, won’t it make a very pretty house look like a flat fronted box?

If you’re determined to try I’d at least speak to a local planning specialist.

Wow ... this really is a window on another world

Due to the Conservation Area status PD only allows a 3m rear extension, not 6m. Two storey rear extensions are not allowed. Side extensions are not allowed either.
Roof extensions cannot be PD in CAs either.

.

Admittedly I'm being delusional, we've just been repeatedly outbidded elsewhere for months and a little defeatist.

I appreciate all the insights so far, here's some more notes for context

• consensus here is that planning application for wrap-around is silly and pointless?
• I found out its NOT a Conservation Area But Still on the Greenbelt (see image)
• attached neighbouring house had a two storey extension in 1980. But also their original footprint is still far bigger than mine respect to volume rule.
• my existing rear extension is already over the volume rule - so unsure can I get away planning similar extension as them?

Can anyone offer some expert advise what is possible where and what size to maximise space ?
If under permitted development or by planning tactic?

If you really want this property and it has to be extended to be liveable then I strongly recommend you get pre-application advice from your local authority and/or a local architect. You don’t need to own the property to get that advice.

There is no hard and fast rules here, every planning application is judged on it’s own merits. It will depend on the design, the materials, the impact on the neighbours, the green belt…

You might be able to carry out some extensions using PD rights but it might be a compromise that’s not worth it if you can design something the planners are happy with.

Given the huge amounts of money you will spending on the property and the building work then I think you need more than a bit of guess work from random people on a forum (although I know a couple of us work in local planning offices)

We are in a conservation area and they were pretty strict about extensions, we did get a couple of small concessions on the grounds that our house is not visible from the main conservation area behind us. A neighbour did better by knocking down his bungalow completely and building a house on the maximum allowed footprint rather than trying to get planning for the extension he wanted to build, the houses on the road are a mixture of bungalows and houses so that was allowed.

I believe labour are loosening some of the rules to promote house building, but I wouldn't bank on it. I would assume you are stuck with the small amount of allowable extension.

The rules here were pretty hard and fast, you are in the conservation/green belt area you can only do this, full stop, no discussion. I guess some areas may be more relaxed.

The OP has confirmed they are not in the conservation area.

Perhaps I wasn’t clear. What I meant was there will be lots of design options with the green belt volume limit (which not everything authority has). Not all of these design options will be acceptable, it’s not a case of saying so long as it’s less than Xsqm then anything goes. The OP is asking for a maximum size, it simply isn’t that straight forward

The very best thing that you can do is utilise your local councils pre-application service. It usually costs about £150 and an officer can look at your plans and give you a really good idea of how they align with local policies and whether you’d be likely to gain approval.